GE Hydran 201i Instruction Manual

GE Hydran 201i Instruction Manual

Transformer gas monitoring system
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Hydran* 201i System
Transformer Gas Monitoring System
Instruction Manual
GE Grid Solutions (UK) Ltd
Lissue Industrial Estate East, Unit 1, 7 Lissue Walk,
Lisburn, United Kingdom BT28 2LU
Tel: +44 (0) 28 9262 2915,
Email:
MA-033
Rev. 14.0, 12-Nov-18
Web:
www.gegridsolutions.com/MD.htm
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Summary of Contents for GE Hydran 201i

  • Page 1 Hydran* 201i System Transformer Gas Monitoring System Instruction Manual GE Grid Solutions (UK) Ltd Lissue Industrial Estate East, Unit 1, 7 Lissue Walk, Lisburn, United Kingdom BT28 2LU Tel: +44 (0) 28 9262 2915, Email: [email protected] MA-033 Rev. 14.0, 12-Nov-18 Web: www.gegridsolutions.com/MD.htm...
  • Page 2: Copyright Notice And Proprietary Rights

    Fax: +44 28 9262 2202 Web: www.gegridsolutions.com/MD.htm For help and support for your Hydran* 201i System, please contact the the GE Customer Service Center. Open 24 hours a day, 365 days a year. Tel: 1-800-361-3652 (United States and Canada) Tel: +1 514-420-7460 (worldwide) Email: [email protected]...
  • Page 3: Table Of Contents

    1.4 Standard General Electric Warranty ....................17 INTRODUCTION ......................... 19 2.1 The Hydran 201i System ........................19 2.2 Components of the Hydran 201i System ..................20 2.2.1 Hydran 201Ti Intelligent Transmitter ................20 2.2.2 Hydran 201Ci Communications Controller ..............21 2.2.3 Hydran 201Ci-1 One Channel Controller ................
  • Page 4 Hydran* 201i Instruction Manual 3.4.3 Hydran 201 Sensor ......................... 31 3.4.4 CPU Module ..........................32 3.4.5 USB Type B Connector for Communication ..............32 3.4.6 I/O Module ..........................32 3.5 Analog Inputs and Output ......................... 37 3.5.1 Analog Inputs ..........................37 3.5.2 Analog Output ..........................
  • Page 5 Hydran* 201i Instruction Manual 5.2.3 Menu Navigation Mode ......................59 5.2.4 Parameter Modification Mode .................... 59 5.2.5 Power Up Mode........................60 5.3 Using the Keypad’s Keys According to Each Mode..............62 5.4 Passwords ............................... 63 5.5 Main and Extended Menus ........................ 63 5.5.1 History Submenu ........................
  • Page 6 Hydran* 201i Instruction Manual 7.2.4 Verifying the Alarm Relays ....................100 7.2.5 Verifying the Backup Battery .................... 102 7.2.6 Sensor Serial Number Verification and Sensor Test ..........103 7.2.7 Adjusting the Temperature Set Point ................103 7.2.8 Verifying the Analog Output (Optional) ................104 7.2.9 Verifying the USB Communication (Optional)..............
  • Page 7 Hydran* 201i Instruction Manual 7.4.12 Verifying and Setting the Fail Alarm Conditions ............120 7.4.13 Verifying and Setting the Operation Mode of the Analog Output and TDM Signal ............................120 7.4.14 Conclusion ..........................120 7.5 Fastening the Hydran 201Ti’s Cover .................... 121 7.6 Commissioning ............................
  • Page 8 9.3.12 Conclusion ..........................141 9.4 Other Installations ..........................142 10 COMMUNICATIONS & NETWORKING................... 143 10.1 Communications for Hydran 201R Model i or Hydran 201i System, Using a Supervisory Link ............................143 10.1.1 TDM Pulse ..........................144 10.2 Communications in a Network, using an RS-485 Local Network Link and Hydran 201Ci controllers ............................
  • Page 9 11.5.1 Fail Alarm Triggering ......................167 11.5.2 Fault Triggers .......................... 168 11.5.3 Fail Alarm Cancellation ....................... 171 12 OPERATING THE HYDRAN 201I SYSTEM ................172 12.1 Operating Methods..........................172 12.1.1 Periodic, Visual Monitoring ....................172 12.1.2 Alarm Monitoring ........................173 12.1.3 Analog Output Monitoring ....................
  • Page 10 Hydran* 201i Instruction Manual 12.1.6 Remote Monitoring With Host Computer ..............175 12.2 Data Reading ............................176 12.2.1 Direct Data Reading ......................176 12.2.2 Historic Data Reading ......................177 12.3 Data Analysis ............................177 13 TROUBLESHOOTING ....................... 178 13.1 Alarm Messages on the Hydran 201Ti’s Display ..............178 13.1.1 Battery L ...........................
  • Page 11 15.1 Powering Off ............................200 15.2 Cable Disconnection .......................... 200 15.3 Removing the Hydran 201Ti ......................201 APPENDIX A : TECHNICAL SPECIFICATIONS FOR THE HYDRAN 201I SYSTEM ...... 202 A.1 Hydran 201Ti Intelligent Transmitter ................... 202 A.2 Hydran 201Ci-C Communications Controller ................205 A.3 Hydran 201Ci-1 One-Channel Controller ...................
  • Page 12 Hydran* 201i Instruction Manual B.2 Hydran 201Ci-C Communications Controller ................214 B.3 Hydran 201Ci-1 One-Channel Controller ................... 215 APPENDIX C : FUNCTIONAL BLOCK DIAGRAMS ................. 216 C.1 Hydran 201Ti Intelligent Transmitter ................... 216 C.2 Hydran 201Ci-C Communications Controller ................217 C.3 Hydran 201Ci-1 One-Channel Controller ...................
  • Page 13: Preliminary Information

    Cualquier desviación al respecto puede causar daños irreparables al transformador que está bajo monitoreo y/o al Hydran 201i, asimismo puede ser causa de daños materiales, lesiones corporales y/o muerte. La instalación y mantenimiento del equipo Hydran 201i se reserva únicamente al personal perfectamente cualificado.
  • Page 14: In German) Warnung

    Hydran 201i, e potrebbe causare danni alla proprietà, lesioni personali e/o alla morte. • L’installazione e la manutenzione del Hydran 201i devono essere eseguite solo ed esclusivamente da personale qualificato. • A una distanza massima di 15 m dalla fonte di energia usare un cavo 2.08 mm2 (14-AWG) e una protezione massima 15A di sovracorrente.
  • Page 15: Safety Symbols Description

    Preface This manual provides a complete reference for the Hydran 201i System, which is a unique, continuous, on-line monitor of combustible gases and moisture in dielectric oils. The information in this manual may be used by:...
  • Page 16 This manual applies to the Hydran 201Ti, Hydran 201i System and to the Hydran 201R Model i. In this manual, the designation “Hydran 201i System” also applies to the Hydran 201R Model i and to any other combination of Hydran 201i components. The components of the Hydran 201i System are described in Section 2.2.
  • Page 17: Standard General Electric Warranty

    Hydran* 201i Instruction Manual Standard General Electric Warranty The products covered by this manual and manufactured by General Electric (“Products”) are warranted to be free from defects in material, workmanship and title at the time of delivery. Any components of a Product or other products manufactured by persons other than General Electric carry only the warranty provided by the manufacturers thereof and General Electric gives no warranty on behalf of the manufacturers of such products.
  • Page 18 Hydran* 201i Instruction Manual The Buyer shall keep proper records of operation and maintenance during the applicable Warranty Period. These records shall be kept in the form of log sheets and copies shall be submitted to General Electric upon its request in connection with a warranty claim by the Buyer.
  • Page 19: Introduction

    Hydran* 201i Instruction Manual INTRODUCTION This Chapter is an introduction to the Hydran 201i System. A description of the various components of the system is also provided. The Hydran 201i System The Hydran 201i System is a continuous, on-line, intelligent dissolved gas monitoring system.
  • Page 20: Components Of The Hydran 201I System

    The Hydran 201Ti Intelligent Transmitter (Figure 2-1 below) is the foundation upon which the Hydran 201i System is built. It consists of a small cylindrical enclosure which attaches directly to a transformer valve using a brass adaptor. This enclosure contains a standard Hydran sensor, a thermal conditioning system and a microprocessor-based intelligent electronic transmitter.
  • Page 21: Hydran 201Ci Communications Controller

    Hydran* 201i Instruction Manual A membrane keypad and an alphanumeric backlit LCD display enable full interaction with the unit without requiring the use of an external computer. The H201Ti is described in detail in Chapter 3. 2.2.2 Hydran 201Ci Communications Controller The Hydran 201Ci- C unit (Figure 2-2 below) is a communications controller.
  • Page 22: Hydran 201Ci-1 One Channel Controller

    Hydran* 201i Instruction Manual 2.2.3 Hydran 201Ci-1 One Channel Controller The Hydran 201Ci-1 (Figure 2-3 below) is a full one-channel controller. When used with the Hydran 201Ti Intelligent Transmitter, the combination is called a Hydran 201R Model i (see the picture on the front cover of this manual). It uses a heated Type NEMA 4X instrument cabinet and contains a single electronic circuit board.
  • Page 23: Networking And Communications Capabilities

    Hydran* 201i Instruction Manual The Hydran Host software performs five basic tasks: • A continuous, on-line survey of alarm status and basic information from one or several H201Ti’s. • Real-time logging of information from one or several H201Ti’s. • Continuous or programmed uploading of historical data (history download) from one or several H201Ti network(s) with graphic display.
  • Page 24: Description Of The Hydran 201I Systems

    H201Ti (unless this function is disabled by the user). Description of the Hydran 201i systems The Hydran 201i System is made up of different units assembled in several possible configurations to provide a variety of useful combinations for the detection and monitoring of failure conditions in oil-filled electrical equipment.
  • Page 25: Accessories

    Can be abbreviated as follows: Perception Accessories The following accessories are available for the Hydran 201i System. They may be ordered from General Electric with any of the Hydran 201i System components or separately. 2.5.1 Hydran 201TW Tube Wrench The Hydran 201TW Tube Wrench (Figure 2-4 below) is required to properly install the Hydran 201 sensor.
  • Page 26: Vibration Absorbing Pads

    Hydran* 201i Instruction Manual 2.5.2 Vibration Absorbing Pads If vibrations are present, rubber pads (which can be purchased from General Electric) are used on the back of the Hydran 201Ci Controllers; an example is shown in Figure 2-5 below. Refer to Chapter 4. Figure 2-5: Vibration Absorbing Rubber Pads Page 26 MA-033...
  • Page 27: Hydran 201Ti Intelligent Transmitter

    Hydran* 201i Instruction Manual HYDRAN 201TI INTELLIGENT TRANSMITTER The Hydran 201Ti is an intelligent, on-line monitoring system that measures the level of combustible gases in dielectric oil for the early detection and monitoring of incipient faults in transformers or any other oil-filled electrical equipment. A picture of the H201Ti is illustrated in Figure 2-1.
  • Page 28: Enclosure

    Hydran* 201i Instruction Manual Alarm contacts (gas High and High-High, and system fail alarms). Analog output. • A termination board to connect the H201Ci and the H201Ti with a supervisory link. Enclosure The Hydran 201Ti’s enclosure (see Figure 2-1) is 186 mm (7.3 in) in diameter by 180 mm (7.125 in) in length;...
  • Page 29: Internal Components

    Hydran* 201i Instruction Manual Figure 3-1: Hydran 201Ti's Enclosure (Mounted on a Valve) Internal Components An internal view of the Hydran 201Ti is presented in Figure 3-2 below. The major components are described in this Section: 1. Brass adaptor: See Section 3.4.1. 2.
  • Page 30: Brass Adapter

    Hydran* 201i Instruction Manual Figure 3-2: Internal View of Hydran 201Ti 3.4.1 Brass Adapter The Hydran 201Ti and the Hydran 201 sensor mount onto the valve of the transformer or other electrical equipment using a flanged brass adaptor (item 1 in Figure 3-2 above).
  • Page 31: Heating Plate

    Hydran* 201i Instruction Manual 3.4.2 Heating Plate Heating resistors and a temperature-sensing thermistor are mounted on the heating plate (item 2 in Figure 3-2). The power input to the heating plate is controlled by the Hydran 201Ti and the aluminum cover (item 3 in Figure 3-1) acts as a heat radiator. This allows the enclosure to maintain the temperature of the Hydran 201 sensor (and electronics) between 25 and 50°C (77 and 122°F), regardless of the ambient or oil temperatures.
  • Page 32: Cpu Module

    Hydran* 201i Instruction Manual the detector, the gases combine with oxygen to produce an electrical signal that is then measured by an electronic circuit and converted to ppm. The H201 sensor is sensitive to hydrogen (H ), carbon monoxide (CO), ethylene (C ) and acetylene (C ) which are the primary indicators of incipient faults in oil-filled electrical equipment.
  • Page 33 Hydran* 201i Instruction Manual 3.4.6.1 Top Side of the I/O Module The top side of the I/O module supports five components: 8. AC Power 3-Terminal Block (in Figure 3-4): The terminal has a 300-V rating and accepts 22–14 AWG wires (2.5 mm2 nominal). For wiring details, see Table D – 1 in Appendix D.
  • Page 34 Hydran* 201i Instruction Manual 12. Alarm Contacts 9-Terminal Block (in Figure 3-5: The terminal has a 300-V rating and accepts 22–14 AWG wires (2.5 mm2 nominal). For wiring details, refer to Table D - 2 in Appendix D. Figure 3-5: Second View of the Top Side of the I/O Module 3.4.6.2 Left Side of the I/O Module The left side of the I/O module (Figure 3-6) supports plug connectors and the fuse.
  • Page 35 Hydran* 201i Instruction Manual Figure 3-6: Left Side of the I/O Module 17. J5 Alarm Relays 9-Pin Connector: This connector is factory-wired to the alarm contacts terminal block. 18. J4 Isolated Supervisory Link 6-Pin Connector: This connector is wired to the termination board.
  • Page 36 Hydran* 201i Instruction Manual • It flashes if the internal temperature is close to the set point. • It remains off if the internal temperature exceeds the set point. Figure 3-7: Right Side of the I/O Module 23. -5 - Regulated -5 Vdc supply LED: This dim, green LED confirms the presence of the -5 Vdc power supply.
  • Page 37: Analog Inputs And Output

    Hydran* 201i Instruction Manual Analog Inputs and Output 3.5.1 Analog Inputs The Hydran 201Ti uses three analog inputs: • Gas level reading (supplied by the Hydran 201 sensor). • Temperature of the H201 sensor (supplied by the sensor thermistor). • Temperature of the heating plate (supplied by the heating plate thermistor). All H201Ti’s inputs pass in a first level of processing which has the following functions: •...
  • Page 38: Heating System

    Hydran* 201i Instruction Manual Heating System The recommended operating temperature range of the Hydran 201 sensor is 15 to 65°C (59 to 149°F). The sensor temperature is a function of: • The ambient air temperature surrounding the Hydran 201Ti. • The oil temperature behind the valve on which the H201Ti is mounted. Note: This temperature is always lower than the oil temperature at the top of the transformer tank.
  • Page 39: Battery Specifications

    • Battery size and type: Coin 24.5mm, CR2430, Lithium 285 mAh. • Recommended model: CR2430 (Renata). Note: For Hydran 201Ti units, built in 2012 or earlier, consult GE Customer Service ((the coordinates can be found at the bottom of page 2).
  • Page 40: Replacing The Battery

    Hydran* 201i Instruction Manual 10. If required, reinstall the keypad flat cable into its connector J2. 11. Reinstall the cover back in place. 12. Reinstall the CPU module back into place. 3.7.4 Replacing the Battery The battery is used to keep the real-time clock functioning when the Hydran 201Ti unit is not powered.
  • Page 41: Discarding The Battery

    Hydran* 201i Instruction Manual 3.7.6 Discarding the Battery Do not dissemble, crush, puncture or incinerate the battery. Handle a damaged or leaking battery with extreme care. If you touch the electrolyte, wash the exposed skin with soap and water. If the electrolyte contacts your eye, flush the eye with water for 15 minutes.
  • Page 42: Nonvolatile Memory

    Hydran* 201i Instruction Manual Nonvolatile Memory The nonvolatile memory allows the Hydran 201Ti to retain its data even during the following events: • Disconnection of the H201Ti’s battery. • Failure of the H201Ti’s power supply. • Update of the H201Ti’s embedded software using the Hydran Host software. The H201Ti’s nonvolatile memory is used to retain the following data: •...
  • Page 43: Hydran 201Ci Controllers

    Hydran* 201i Instruction Manual HYDRAN 201CI CONTROLLERS Hydran 201Ci-C Communications Controller Figure 3-1 shows one possible configuration of a Hydran 201i System. It consists of three components: • A host computer. • The Hydran 201Ci-C Communications Controller, which is described here.
  • Page 44: Description Of Major Components

    Hydran* 201i Instruction Manual • Network and communication management. The H201Ci-C (or any other Hydran 201Ci Controller in a local network) is connected to the host computer with an RS- 232 or USB link or a modem (optional) and to each H201Ti with a supervisory link. A maximum of 32 H201Ci Controllers (H201Ci-C and/or H201Ci-1) can be connected together with an RS-485 link to establish a local network that can contain up to 128 H201Ti’s.
  • Page 45: Description Of Circuit Board

    10. Optional Modem Connector, 4 Pins (J9): This connector is used to interface the H201Ci-C with a modem. The telephone line should be connected here. For more detail, refer to the modem procedure located in the English/Procedures folder of the Hydran 201i System installation CD. MA-033 Rev. 14.0, 12-Nov-18...
  • Page 46 Hydran* 201i Instruction Manual 11. RS-485 LAN Connector, 3 Pins (J11): To set up an H201Ti network, the H201Ci-Cs (and/or H201Ci-1s) are daisy-chained together into an RS-485 Local Area Network (LAN). Figure 4-3: Circuit Board of the Hydran 201Ci-C 12. Supervisory Link Connector to Termination Board No. 1, 4 Pins (J15): An isolated supervisory link cable coming from an H201Ti (through the termination board) is connected here.
  • Page 47 Hydran* 201i Instruction Manual Note: The TDM pulse signal from the H201Ti (which uses a third pair when the supervisory link is connected to an H201Ci-1) is not used by the H201Ci-C. The TDM pulse signal only carries analog data and relay status, and it is not required for communications and networking functions.
  • Page 48: Additional Information

    Hydran* 201i Instruction Manual 4.1.4 Additional Information To obtain more information on the Hydran 201Ci-C, please consult the following parts of this manual: • Before the installation: See Chapter 6. • Installation: See Chapter 8. • Communications and networking: See Chapter 10. •...
  • Page 49 Hydran* 201i Instruction Manual Figure 4-4: Hydran 201R Model i • Network and communication management. The H201Ci-1 (or any other Hydran 201Ci Controller in a local network) is connected to the host computer with an RS- 232 or USB link or a modem (optional) and to each H201Ti with a supervisory link. A maximum of 32 H201Ci Controllers (H201Ci-C and/or H201Ci-1) can be connected together with an RS-485 link to establish a local network that can contain up to 128 H201Ti’s.
  • Page 50: Description Of Major Components

    Hydran* 201i Instruction Manual 4.2.2 Description of Major Components An external view of the H201Ci-1 is presented in Figure 4-5 below. Figure 4-5: External View of Hydran 201Ci-1 1. Digital Display: The LED digital read-out displays the content of combustible gas in the oil.
  • Page 51 Hydran* 201i Instruction Manual Figure 4-6: Internal View of Hydran 201Ci-1 4. Digital Display Circuit Board Cover: This cover protects the display circuit board, which includes the digital voltmeter and the connections of the two push-buttons. 5. Electronic Circuit Board: The circuit board incorporates all the electronic functions of the H201Ci-1: H201Ti TDM pulse decoder, alarm relay drivers, configurable analog output amplifiers, display signal conditioning, supervisory link supply, communication ports and modem (optional) management, enclosure heater...
  • Page 52: Description Of Circuit Board

    Hydran* 201i Instruction Manual 4.2.3 Description of Circuit Board The circuit board of the Hydran 201Ci-1 is presented in Figure 4-7 below. Figure 4-7: Circuit Board of the Hydran 201Ci-1 7. Figure 4-7 RS-232 Computer Port Connector, DB-9 Male (J10): This standard connector is used to interface the H201Ci-1 directly to a PC or to a smart modem.
  • Page 53 H201Ci-1 with a modem. The telephone line should be connected here. For more detail, refer to the modem procedure located in the English/Procedures folder of the Hydran 201i System installation CD. 11. RS-485 LAN Connector, 3 Pins (J11): To set up an H201Ti network, the H201Ci-1s (and/or H201Ci-Cs) are daisy-chained together into an RS-485 Local Area Network (LAN).
  • Page 54 Hydran* 201i Instruction Manual 19. Analog Outputs (J22): This connector is factory-wired to the terminal block between pins 17 and 20. 20. Alarm Contacts Connector, 9 Pins (J18): The Gas High, Gas High-High and System OK alarm relays are factory-wired from this connector to the terminal block between pins 7 and 15.
  • Page 55: Additional Information

    Hydran* 201i Instruction Manual 30. Digital Voltmeter Indicator, Yellow (DS3): This LED indicates that the digital voltmeter on the front panel is On. This means that the H201Ci-1 has a valid TDM (Time Division Multiplexing) signal from the H201Ti. 31. Display Board Connector, 16 Pins (J4): This connector is factory-wired to the display board located on the door.
  • Page 56: Hydran 201Ti Displays & Menus

    Hydran* 201i Instruction Manual HYDRAN 201TI DISPLAYS & MENUS Note: It is recommended to use the Hydran Host software rather than the H201Ti’s user interface (keypad and display). See the Hydran Host Software Manual. All parameters and commands that can be accessed with the H201Ti’s user interface can also be accessed with the Hydran Host software, except for the analog inputs/outputs calibration and the communication parameters.
  • Page 57: User Interface Operating Modes

    Hydran* 201i Instruction Manual conditions. At low temperatures, the LCD display might not be legible, but all other functionalities are fully operational. • A six-key keypad (see Section 5.3), also designed to function under an extremely wide temperature range. The H201Ti’s user interface has three main functions: •...
  • Page 58: Unacknowledged Alarms Mode

    Hydran* 201i Instruction Manual 5.2.1 Unacknowledged Alarms Mode An alarm condition exists when a variable (such as gas level, gas trend or sensor temperature) has exceeded the predetermined limits (“alarm setting”). Alarms are explained in detail in Chapter 11; all alarm messages are given in Section 13.1. The unacknowledged alarm messages are always displayed in priority.
  • Page 59: Menu Navigation Mode

    Hydran* 201i Instruction Manual Display Description (Alarm set point) and if the alarm condition is still present. See Section 5.2.1. Gas Level • Gas level measured by the Hydran 201 sensor • Range: 0 to 2,000 ppm xxx PPM • Initial value : 0 to 20 ppm Hourly Trend •...
  • Page 60: Power Up Mode

    Hydran* 201i Instruction Manual 2 (because password No. 1 has already been entered to access the Extended Menu). For details on passwords, see Section 5.4. The Parameter Modification mode is indicated with a colon displayed on the bottom line, at the left of the numerical value or choice to being modified. The value of the parameter can then be changed using the UP and DOWN keys;...
  • Page 61 Hydran* 201i Instruction Manual 5.2.5.3 First Power Up (After Reconnection of Battery) In this sequence, the H201Ti requests the values listed in Table 5-3 below before executing the self-test sequence. The Main Display mode is then displayed (the H201Ti will not be in service until these values are entered). Display Data Entry Action...
  • Page 62: Using The Keypad's Keys According To Each Mode

    Hydran* 201i Instruction Manual Using the Keypad’s Keys According to Each Mode The Hydran 201Ti’s keypad is shown in Figure 5-2 below. Figure 5-2: Hydran 201Ti's Keypad Table 5-4 summarizes the functions of the keys according to the operating modes. Menu Parameter Unacknowledge...
  • Page 63: Passwords

    Hydran* 201i Instruction Manual Passwords The H201Ti’s user interface is protected by passwords. Entering a password is necessary to modify parameters or to access specific sections of menus: • Password No. 1 (first level): This password is 1253. It allows the user to modify almost all the H201Ti’s parameters.
  • Page 64 Hydran* 201i Instruction Manual Submenu Functions • To consult the four historic data files: Events (recording at the time of events; example: alarms) Short Term (recording at fixed logging rate; example: every 15 minutes) Long Term (recording at fixed logging rates; example: History every 6 hours) Service (recording at the time of the semimonthly,...
  • Page 65: History Submenu

    Hydran* 201i Instruction Manual Submenu Functions • To read the state of the alarm relays: On or Off • To set the operation mode of the three alarm relays • To select the triggering conditions of the fail alarm Relays/Analog (FaultTrig) (Extended Menu •...
  • Page 66 Hydran* 201i Instruction Manual The following events are recorded: • An alarm is triggered. • An alarm is acknowledged by a user. • An alarm is cancelled (the alarm condition has disappeared). • A parameter is changed by a user. •...
  • Page 67 Hydran* 201i Instruction Manual 5.5.1.2 Short Term History At a certain logging rate (adjustable; see Section 5.5.1.5), the date and time plus ten variables are stored in the historic data file Short Term. Its capacity is 480 recordings; when the file is full and a new recording occurs, the oldest recording is deleted (first in, first out method).
  • Page 68 Hydran* 201i Instruction Manual Note: The ServiceL, ServiceI and ServiceA variables pertain to the H201 sensor automatic test and are reserved to the General Electric Customer Service. A defective H201 sensor immediately triggers the fail alarm (if this alarm condition is on; see the FaultTrig.
  • Page 69: Gas Submenu

    Hydran* 201i Instruction Manual 5.5.2 Gas Submenu The Gas submenu allows the user to set the parameters of the conditions that trigger: • The gas alarm: A High or High-High alarm is triggered if an alarm condition (GasLevel, HourlyTrend or DailyTrend) exceeds the corresponding High or High- High alarm set point for a period of time greater than the delay.
  • Page 70: Temperature Submenu

    Hydran* 201i Instruction Manual • DailyTr Period (Extended Menu only): Period of the daily trend (number of days used to calculate the gas level variation). • DayTrAlr L (Extended Menu only): Set point of daily trend Low alarm. • DayTrAlr LL (Extended Menu only): Set point of daily trend Low-Low alarm. 5.5.3 Temperature Submenu The Temperature submenu allows the user to: •...
  • Page 71: Service Submenu

    Hydran* 201i Instruction Manual 5.5.4 Service Submenu The Service submenu allows the user to: • Read the value of the Hydran 201 sensor parameters. • Test the H201 sensor operation. • Read the battery voltage. • Set the parameters of the battery alarm. •...
  • Page 72 Hydran* 201i Instruction Manual • If the sensor test fails (in other words, if an alarm condition is detected), the fail alarm is triggered, the test result is recorded in the historic data file Events and a message is displayed on the H201Ti’s display. Note: All alarms are ignored for two minutes following the H201 sensor test.
  • Page 73: Date & Time Submenu (Extended Menu Only)

    Hydran* 201i Instruction Manual 5.5.4.4 Service Data This function is used to read the value of six internal parameters used by the General Electric personnel during Hydran 201Ti maintenance or troubleshooting procedures: • ServiceL • ServiceI • ServiceA • ServiceU •...
  • Page 74 Hydran* 201i Instruction Manual • SupervisoryLink: Use this channel if the H201Ti must be set to Hydran protocol and has to communicate with an H201Ci Controller. • LocalUSB MODBUS: Use this channel if the H201Ti must be set to ModBus protocol and has to be connected directly to a host computer running the Perception software.
  • Page 75: Relays/Analog Submenu (Extended Menu Only)

    Hydran* 201i Instruction Manual 5.5.6.5 Force Host Call This function is used to perform two actions: • To initialize the modem in the H201Ci Controller with the communication rate selected using the BaudRate parameter. • To test the communications between the Hydran 201Ti and the Hydran Host software by forcing the H201Ci Controller’s modem to call the modem of the host computer where the Hydran Host is running.
  • Page 76 • AnalogMode: Is used to set the operation mode of the analog output. The three Force x % modes are used only to test the operation of the Hydran 201i System. Table 5-7 shows the electrical current generated for each mode.
  • Page 77: New Sensor Submenu (Extended Menu Only)

    2,000 ppm = 100 %). • TDM Mode: Is used to set the operation mode of the TDM signal. The three Force x % modes are used only to test the operation of the Hydran 201i System. 5.5.8 New Sensor Submenu (Extended Menu Only) The NewSensor submenu is used to: •...
  • Page 78 Hydran* 201i Instruction Manual The heating plate temperature. • The analog output. This command requires password No. 2. If you go further than the “CalibrateNow?” message in this CAUTION submenu, the calibration is destroyed. There are five branches in this submenu: •...
  • Page 79: Before Installation

    Hydran* 201i Instruction Manual BEFORE INSTALLATION General Warnings 1. Do not separate the Hydran 201Ti Intelligent Transmitters from their respective Hydran 201 sensor. The H201Ti is set at the factory for a specific H201 sensor. To verify whether the two components are paired correctly, consult the serial numbers indicated on the shipping box and/or the Test Certificate and Data Sheet.
  • Page 80 Hydran* 201i Instruction Manual Mishandling of the Hydran 201 sensor (such as a perforation or CAUTION scratch on the membrane or subjecting the sensor to paint or solvent) voids the warranty. 3. Do not touch the H201 sensor’s membrane (located inside the threaded extremity) with a finger or an object (see Figure 6-2 below).
  • Page 81 Hydran* 201i Instruction Manual 5. Do not paint the sensor (see Figure 6-3). Paint fumes block the sensor’s breathing membrane and damage the sensor permanently, thus voiding the warranty. 6. Do not use hydrocarbon-based compounds near the sensor. Do not clean the sensor with any solvent or other products (see Figure 6-3 below).
  • Page 82 Hydran* 201i Instruction Manual 7. Do not use a pipe wrench or chain wrench to install the sensor. Doing so may cause serious damage to the sensor, thus voiding the warranty. It is recommended to use General Electric’s Hydran 201TW tube wrench (see Figure 6-4 below) to correctly install the Hydran 201 sensor.
  • Page 83 Hydran* 201i Instruction Manual 8. Do not install the H201Ti on the inlet side of the radiator pump (see Figure 6-5 below). Figure 6-5: Do Not Install the H201Ti on the Inlet Side of the Radiator Pump 9. Do not use galvanized fittings to install the brass adaptor and the sensor. Galvanized fittings (pipes, reducing bushings, rings, etc.) may react with the oil and produce elevated gas level readings.
  • Page 84 Hydran* 201i Instruction Manual 10. Install the H201Ti horizontally; not at an angle, vertically or horizontally using an elbow (see Figure 6-6 below). Elbows may cause turbulence that can reduce the accuracy of gas level readings. For details pertaining to the positioning of H201Ti’s, see Section 6.2.2.3.
  • Page 85: Installation Overview

    13. Do not remove the watertight cap from unused openings of the H201Ci’s enclosure. Installation Overview A typical installation of the Hydran 201i System is shown in Figure 6-8 below. Here is a description of each component: 1. Optional Hydran 201Ci Controller (Hydran 201Ci-C Communications Controller or Hydran 201Ci-1 One-Channel Controller) installed on vibration-absorbing rubber pads (see Figure 2-5).
  • Page 86 Hydran* 201i Instruction Manual Figure 6-8: Typical Installation of the Hydran 201i System Page 86 MA-033 Rev. 14.0, 12-Nov-18...
  • Page 87: Tools And Material Required

    Hydran* 201i Instruction Manual 6.2.1 Tools and Material Required • Flat-blade screwdriver. • General Electric’s Hydran 201TW tube wrench to tighten the Hydran 201 sensor. • Pipe wrench to tighten the brass adaptor onto the valve. • Allen keys supplied with the Hydran 201Ti (see Section 7.1.1). •...
  • Page 88 Hydran* 201i Instruction Manual 6.2.2.2 Vertical Installations of the H201Ti Regardless of the selected location, it is recommended to mount the Hydran H201Ti horizontally (as shown Figure 6-8). If no horizontal valve is available, a vertical installation may be acceptable; contact the General Electric Customer Service (the coordinates can be found at the bottom of page 2).
  • Page 89 Hydran* 201i Instruction Manual Figure 6-9: Typical Valve Locations on a Transformer Location #A: Cooling Return Some transformers may have a valve that is on the pipe that joins the bottom of the cooling system to the transformer main tank. This location has excellent circulation of oil.
  • Page 90: Mounting Location Of Hydran 201Ci Controllers

    Hydran* 201i Instruction Manual Location #C: Main Tank Some transformers are equipped with a valve that is mounted towards the middle portion of the transformer main tank. This location offers good oil circulation and is easily accessible for installation and taking oil samples directly from the Hydran 201Ti.
  • Page 91: Cabling And Network Configuration

    RS-485 link to form a local network. A local network of Hydran 201i Systems can include up to 32 H201Ci Controllers and 128 Hydran 201Tis. The H201Ci Controllers (Hydran 201Ci-Cs and/or Hydran 201Ci-1s) can all be connected together.
  • Page 92 1 and 5 (inclusive) Table 6-1: Example of H201Ti Identification Numbers 5. The serial number of each component of the Hydran 201i System, the value of the H201Ti’s parameters and a general description of the installation (transformer number, power station number, etc.) should be logged and kept in a safe place.
  • Page 93: Installation

    • Because of its digital nature, the supervisory link provides better protection against electrical noise. Installation To install the components of the Hydran 201i System, please consult the following parts of this manual: • Hydran 201Ti: See Chapter 7. • Hydran 201Ci-C: See Chapter 8.
  • Page 94: Hydran 201Ti Installation

    It is strongly recommended to verify the operation of the H201Ti’s and Hydran 201Ci Controllers before their installation. This verification also confirms that no damage occurred during shipping and allows the user to become familiar with the Hydran 201i System. The H201Ti installation procedure is described in Section 7.3.
  • Page 95: Inspecting

    3. Software and manuals: • One installation CD-ROM that includes the following items: The Hydran Host software. Three manuals in PDF format: The Hydran 201i System Instruction Manual (the present manual), the Hydran 201i System Installation Guide and the Hydran Host Software Manual.
  • Page 96 Hydran* 201i Instruction Manual and Data Sheet (for an example, see Figure 7-1. The left side is determined by facing the H201Ti’s display and keypad. There are two possibilities: • 115 V, corresponding to 100–120 VAC 50/60 Hz • 230 V, corresponding to 200–240 VAC 50/60 Hz 4.
  • Page 97 Hydran* 201i Instruction Manual Figure 7-1: Example of Test Certificate and Data Sheet for the Hydran 201Ti MA-033 Rev. 14.0, 12-Nov-18 Page 97...
  • Page 98: Storage And Battery Care

    Hydran* 201i Instruction Manual 7.1.4 Storage and Battery Care If the Hydran 201Ti is to be stored (or unpowered), it is recommended to keep the product in its original shipping box. The plastic cap must be left on the adaptor to protect its threads and the membrane.
  • Page 99: Initial Observations

    Hydran* 201i Instruction Manual Disconnect the power at the disconnect switch or circuit WARNING breaker before making any electrical connections, and ensure a proper ground connection is made before connecting line voltage. Failure to do so can result in property damage, personal injury and/or death.
  • Page 100: Adjusting The Data And Time

    Hydran* 201i Instruction Manual • Wait a few minutes and touch the back of the heating plate (item 2 in Figure 3- 2 in section 3). It should be warm if the LED C (item 21 in Figure 3-7) is blinking. This indicates the sensor is being heated to the temperature setting of default...
  • Page 101 Hydran* 201i Instruction Manual your particular situation. Perform all of the procedures (from Section 7.2.4.1 below to Section 7.2.4.6). To verify the relays using the alarm contacts, connect an ohmmeter to the Alarm Contacts 9-Terminal Block (item 12 in Figure 3-5). To identify each terminal, see Table D - 7.2.4.1 Gas High Alarm 1.
  • Page 102: Verifying The Backup Battery

    Hydran* 201i Instruction Manual 4. Ensure: • The System state indicator LED OK (item 25 in Figure 3-7) is off. • The NO contact of the fail alarm is open. • The NC contact of the fail alarm is closed. •...
  • Page 103: Sensor Serial Number Verification And Sensor Test

    Hydran* 201i Instruction Manual 2. Push DOWN three times until Service appears. 3. Access this menu by pushing ENTER. 4. Push DOWN twice until Backup Battery appears. 5. Read the battery voltage by pushing ENTER. The value must exceed 2.9 V. Note: The Hydran 201Ti requires a minimum of 2.2 V to operate correctly.
  • Page 104: Verifying The Analog Output (Optional)

    Hydran* 201i Instruction Manual 14. Return to a previous level of the menu by pushing ESC. 15. Re-enter the menu using the DOWN or UP key. 16. Check the Temp Setpoint has changed to 30°C (86°F). 17. When all is done, push END. Note: Reset the Temp Setpoint to 35°C (95°F), the default value.
  • Page 105: Completing The Verification

    Hydran* 201i Instruction Manual 1. Using the supplied USB cable, connect the Hydran 201Ti to a host computer through their USB connector. Refer to Table D - 7 in Appendix D for connection details. 2. Access the top of the extended menu by pushing ENTER twice (History appears). Note: Once accessed, the extended menu times out after 30 minutes of keypad inactivity.
  • Page 106: Installation

    It is strongly recommended that the operation of all H201Ti’s and H201Ci Controllers be verified before installation of the equipment in the field. Verification also allows the user to become familiar with the Hydran 201i System. Figure 7-2: Hydran 201Ti Assembly...
  • Page 107: Verifying The Ac Power Supply Voltage And The Serial Numbers

    Hydran 201i System, and could lead to property damage, personal injury and/or death. Installation and maintenance of the Hydran 201i System must be carried out by qualified personnel only. 7.3.1 Verifying the AC Power Supply Voltage and the Serial Numbers Ensure that the supply voltage setting (step 3 in section 7.1.3) and serial number...
  • Page 108: Preparing The Valve

    Hydran* 201i Instruction Manual 4. Carefully pull out the CPU module. When removing the CPU module, make sure not to bend the CAUTION pins of the connector located between the CPU and I/O modules. 7.3.2.2 Separating the Brass Adapter from the Heating Plate 1.
  • Page 109: Installing The Brass Adapter Onto The Valve

    Hydran* 201i Instruction Manual 7.3.4 Installing the Brass Adapter onto the Valve Cover the adaptor’s threads with PTFE tape (see Figure 7-4 below). Use only PTFE tape to seal the threads of both the adapter and the Hydran 201 sensor. Wrap at least 4 to 5 layers of tape CAUTION around the threads.
  • Page 110: Installing The Hydran 201 Sensor

    Hydran* 201i Instruction Manual 7.3.5 Installing the Hydran 201 Sensor Cover the sensor’s threads with Teflon tape (see Figure 7-4). Use only PTFE tape to seal the threads of both the adapter and the Hydran 201 sensor. Wrap at least 4 to 5 layers of tape CAUTION around the threads.
  • Page 111: Fastening The Hydran 201Ti To The Brass Adapter

    Hydran* 201i Instruction Manual CAUTION Do not use any solvent. 6. Inspect the adaptor and sensor for oil leaks. 7. Dispose of the collected oil according to company standards. Figure 7-7: Purging Air from the Hydran 201 Sensor 7.3.7 Fastening the Hydran 201Ti to the Brass Adapter 1.
  • Page 112: Installing The Cable Conduits

    Hydran* 201i Instruction Manual Note: When the H201Ti is installed horizontally, the terminals must be facing up and located under the sensor. Also, ensure that both the bleed screw and sampling port remain easy to access. 2. Plug the twist-lock female connector of the sensor cable to the male connector behind the Hydran 201 sensor, Figure 7-8: Fastening the Heating Plate to the Brass Adapter 7.3.8 Installing the Cable Conduits...
  • Page 113: Installing The Supervisory Link And Analog Output Cable

    Hydran* 201i Instruction Manual • Conduits, or cable armors, should be made of steel to shield against magnetic fields. • Non-conducting conduit fittings (made of plastic, for example) can be used on the connection box if ground loops through the conduits may cause problems (for example, if the transformer tank is grounded at a single point and monitored continuously for tank-to-ground currents).
  • Page 114: Installing The Alarms Cable (Optional)

    Hydran* 201i Instruction Manual The procedure is as follows: 1. Run the supervisory link cable into the conduit up to the H201Ci Controller, where it will be connected later. 2. Ensure all wires are identified. 3. Connect the cable wires and shield to the H201Ti’s supervisory link (and analog output) termination board.
  • Page 115: Installing The Cpu Module

    Megger* instrument) on cables connected to an H201Ti or a Hydran 201Ci Controller. Never apply high voltages to the CAUTION components of a Hydran 201i System, as they are equipped with surge protection devices that could be damaged by Megger* tests.
  • Page 116: Verifying The Hydran 201Ti Operation

    Hydran* 201i Instruction Manual Figure 7-9: Installing the CPU Module 7.3.13 Verifying the Hydran 201Ti Operation 1. Power up the H201Ti. 2. Perform the procedure described in Section 7.2.2. Configuring the Hydran 201Ti The H201Ti can be configured using either its keypad or a host computer running the Hydran Host or Perception software (depending on the selected communication protocol).
  • Page 117: Setting The Comms Parameters For Hydran Host Or Perception Software

    Hydran* 201i Instruction Manual decided during the planning stage of the installation. Ensure that all parameters are verified. 7.4.1 Setting the Comms Parameters for Hydran Host or Perception Software Proceed as follows in order to use a host computer: 1. Connect the supplied USB cable to the Hydran 201Ti’s USB Type B connector (see item 5 in Figure 3-2), located at the back of the CPU module.
  • Page 118: Resetting The Hourly Trend, Daily Trend And Period B

    Hydran* 201i Instruction Manual 2. Access the submenu H201Ti Vx.xx; Gas. 3. Verify and set, as required, the 15 parameters (alarm set points and periods). Do not set the parameters HourlyTr Period and DailyTr Period 7.4.4 Resetting the Hourly Trend, Daily Trend and Period B The hourly trend, daily trend and Period B are reset by changing the value of their period and then restoring them to their initial value after five minutes.
  • Page 119: Verifying And Setting The Battery Alarm Parameters

    Hydran* 201i Instruction Manual 5. Push ENTER. The message Are You Sure?; Press Enter.. is now displayed. 6. Push ENTER again to confirm. 7. When asked to enter the password #1 (1253), use the UP and ENTER keys. 8. The message Please wait... appears, the test is executed (during a four-second countdown), and the Hydran 201Ti’s display should indicate the message Good.
  • Page 120: Verifying And Setting The Operation Mode Of The Alarm Relays

    Hydran* 201i Instruction Manual • PowerStat. ID (identification number of the power station): All H201Ti’s in the local network (power station) must be set to the same PowerStat. ID value. This number can vary from 1 to 9999. 3. To continue the installation using a host computer, run either the Hydran Host software (if 201Ti is set to Hydran protocol) or Perception software (if Hydran 201Ti is set to Modbus protocol) to define a local network using these identification numbers.
  • Page 121: Fastening The Hydran 201Ti's Cover

    The installation of the H201Ti is now completed. If properly installed and maintained, the H201Ti provides many years of trouble-free service. Other Installations To install other components of the Hydran 201i System, please consult the following parts of this manual: • Hydran 201Ci-C: See Chapter 8.
  • Page 122: Hydran 201Ci-C Installation

    Hydran 201Ci Controllers before their installation. This verification also confirms that no damage occurred during shipping and allows the user to become familiar with the Hydran 201i System. The Hydran 201Ci-C installation procedure is described in Section 8.3. 8.1.1 Receiving and Unpacking Upon receipt, the shipping box contains one pre-assembled Hydran 201Ci-C.
  • Page 123: Storage

    Hydran* 201i Instruction Manual 8.1.3 Storage If the Hydran 201Ci-C is not installed immediately, it is strongly recommended to store it in its original shipping box in a safe place. Storage should be at a temperature between 5 and 45°C (41 and 113°F) and a non- condensing, relative humidity between 5 and 95%;...
  • Page 124: Initial Observations

    • The LED must remain off if the ambient temperature exceeds the set point. 8.2.3 Verification of RS-232 or USB and RS-485 Communications If your installation includes only one Hydran 201i System and if it communicates with the host computer running the Hydran Host or Perception software, you must verify the RS-485 to USB converter or RS-232 link or USB link depending of which one is used.
  • Page 125: Completing The Verification

    Hydran* 201i Instruction Manual 6. Depending on the selected communication protocol, start the Hydran Host or Perception software on the PC. See the Hydran Host Software Manual or Perception User Manual for more information. 7. In the Network Settings menu of the Hydran Host software, set the network configuration to the Gas Monitor ID numbers that were assigned to each H201Ti in the step 5 above.
  • Page 126: Installation

    It is strongly recommended that the operation of all H201Ti’s and H201Ci Controllers be verified before installation of the equipment in the field. Verification also allows the user to become familiar with the Hydran 201i System. All procedures in this manual must be strictly adhered to. Any...
  • Page 127: Installing The Supervisory Link Cables

    Hydran* 201i Instruction Manual • Flexible rather than rigid conduits should be used near the H201Ci-C to ease installation and servicing. • Conduits, or cable armors, should be made of steel to shield against magnetic fields. The procedure is as follows: Remove the rubber plugs from the required openings of the H201Ci-C enclosure.
  • Page 128: Installing The Ac Power Supply

    Megger* instrument) on cables connected to an H201Ti or a Hydran 201Ci Controller. Never apply high voltages to the CAUTION components of a Hydran 201i System, as they are equipped with surge protection devices that could be damaged by Megger* tests.
  • Page 129: Other Installations

    Hydran* 201i Instruction Manual Other Installations To install other components of the Hydran 201i System, please consult the following Sections: • Local network: See Section 10.5. • Optional modem: See Section 10.6. MA-033 Rev. 14.0, 12-Nov-18 Page 129...
  • Page 130: Hydran 201Ci-1 Installation

    Hydran* 201i Instruction Manual HYDRAN 201CI-1 INSTALLATION Please read the following Sections before proceeding with the installation: • General warnings, in Section 6.1. • Installation overview, in Section 6.2. Incoming Inspection and Verification It is strongly recommended that you verify the operation of the Hydran 201Tis and Hydran 201Ci Controllers before their installation.
  • Page 131: Storage

    Hydran* 201i Instruction Manual 9.1.3 Storage If the Hydran 201Ci-1 is not installed immediately, it is strongly recommended to store it in its original shipping box in a safe place. Ensure that the door-mounted push- buttons are covered with the protective caps. Storage should be at a temperature between 5 and 45°C (41 and 113°F) and a non- condensing, relative humidity between 5 and 95%;...
  • Page 132: Initial Observations

    Hydran* 201i Instruction Manual 9.2.2 Initial Observations 1. Verify the Hydran 201Ci-1’s display is not blank. If it remains blank, the possible causes are as follows: • If the fail alarm is triggered, read the alarm message on the Hydran 201Ti’s display to identify the cause of the alarm.
  • Page 133: Verifying The Alarm Indicators And Relays

    Hydran* 201i Instruction Manual Push DOWN six times until Relays/Analog appears. Access this menu by pushing ENTER. Push DOWN until TDM Pulse Out appears. Push ENTER. Push DOWN until TDM Out Mode appears. 10. Push ENTER. The value should be Normal. 11.
  • Page 134 Hydran* 201i Instruction Manual 9.2.4.1 Gas High Alarm 1. In the Hydran 201Ti, access the submenu H201Ti Vx.xx;Relays/Analog. 2. Access the submenu Relays/Analog;GasH Relay. 3. Set the parameter RelayMode of the Gas High relay to On. 4. On the H201Ci-1, verify that: •...
  • Page 135 Hydran* 201i Instruction Manual • The gas alarm indicators (yellow DS9 and DS10) and contacts are restored to their normal state (no alarm condition). • If connected, the SCADA system has detected the alarm. Note: Pushing both push-buttons to acknowledge the gas alarm conditions should turn off the indicators since the conditions are cleared during a system fault.
  • Page 136: Verifying The Rs 232 Or Usb Communications

    Hydran* 201i Instruction Manual 9.2.4.6 Conclusion If necessary, set the parameter RelayMode of each alarm relay to their initial mode. 9.2.5 Verifying the RS 232 or USB Communications If your installation includes only one Hydran 201R Model i and if it communicates with the host computer running the Hydran Host or Perception software, you must verify the RS-232 link or USB link depending which one is used.
  • Page 137 Hydran* 201i Instruction Manual 3. Remove all supply cables. 4. Remove all communication cables. 5. Store the H201Ti and the H201Ci-1 in their respective boxes, ready for installation. 6. If the H201Ti is not installed immediately, refer to Section 7.1.4. 7.
  • Page 138: Installation

    Hydran* 201i Instruction Manual Installation This Section explains how to install the Hydran 201Ci-1 Controller. Read all the warnings and recommendations in Section 6.1 CAUTION (General Warnings) before proceeding with the installation. Note: It is strongly recommended that the operation of all H201Ti’s and H201Ci Controllers be verified before installation of the equipment in the field.
  • Page 139: Installing The Supervisory Link Cable

    Hydran* 201i Instruction Manual • Flexible rather than rigid conduits should be used near the H201Ci-1 to ease installation and servicing. • Conduits, or cable armors, should be made of steel to shield against magnetic fields. The procedure is as follows: Remove the rubber plugs from the required openings of the H201Ci-1 enclosure.
  • Page 140: Installing The Alarms Cable (Optional)

    Hydran* 201i Instruction Manual Note: The shield must be grounded at one end only. 2. Connect the cable to the main terminal block. For wiring details, see Table D - 11. 3. Connect the cable to the SCADA system. 9.3.6 Installing the Alarms Cable (Optional) Perform this procedure only if the Hydran 201Ci-1’s alarms are used.
  • Page 141: Verifying The Operation

    Hydran* 201i Instruction Manual The earth/ground terminal (terminal 3) must be connected. Never perform high-voltage tests (mega-ohm measurements using a Megger* instrument) on cables connected to a Hydran CAUTION 201Ti or a Hydran 201Ci Controller. Never apply high voltages to the components of a Hydran 201R Model i, as they are equipped with surge protection devices that could be damaged by Megger* tests.
  • Page 142: Other Installations

    Hydran* 201i Instruction Manual Other Installations To install other components of the Hydran 201R Model i, please consult the following Sections: • Local network: See Section 10.5. • Optional modem: See Section 10.6. Page 142 MA-033 Rev. 14.0, 12-Nov-18...
  • Page 143: Communications & Networking

    10.1 Communications for Hydran 201R Model i or Hydran 201i System, Using a Supervisory Link In a Hydran 201R Model i or a Hydran 201i System, each Hydran 201Ti is linked to its Hydran 201Ci Controller using a cable referred to as supervisory link.
  • Page 144: Tdm Pulse

    Hydran* 201i Instruction Manual • In the H201Ti: To the Supervisory Link and Analog Output Termination Board (item 9 in Figure 3-4). • In the H201Ci-C: To the terminals 21 to 24 of the Main Terminal Block (item 5 in Figure 4-2). •...
  • Page 145: Communications In A Network, Using An Rs-485 Local Network Link And Hydran 201Ci Controllers

    Hydran* 201i Instruction Manual 10.2 Communications in a Network, using an RS-485 Local Network Link and Hydran 201Ci controllers Up to 128 Hydran 201Ti Intelligent Transmitters can be connected in a single network to be monitored and controlled by computer. Once the H201Tis are connected to a Hydran 201Ci-C or Hydran 201Ci-1 Controller via an isolated supervisory link, each Hydran 201Ci Controller is linked to the next H201Ci in a daisy- chain configuration via an isolated RS-485 LAN.
  • Page 146: Communications With A Host Computer

    Figure 10-1: Example of a Local Network with 201 Ci’s 10.3 Communications with a Host Computer A Hydran 201Ti, a Hydran 201R Model i, a Hydran 201i System or a local network can be connected, either locally or remotely (through a modem), to a host computer via an RS-485 serial link, RS-232 serial link or a USB communication link.
  • Page 147: Local Communications Using Usb Communication Link

    10.5.2. 10.3.1 Local Communications using USB communication link One or more Hydran 201R Model is and/or Hydran 201i Systems are connected to a host computer using a USB communication link. This connection can be done as follows (see Figure 10-2) by connecting the host computer to the USB Type B connector of a Hydran 201Ti.
  • Page 148: Remote Communications (Via Modem)

    Supervisory Link and Analog Output Termination Board (item 9 in Figure 3-4). 10.3.3 Remote Communications (via Modem) One or more Hydran 201R Model is and/or Hydran 201i Systems are linked to a host computer by connecting a modem to a Hydran 201Ci Controller’s DB-9 connector and a telephone system (private or public);...
  • Page 149 A Hayes-compatible modem can be pre-installed and pre-set at the factory in an H201Ci. For details on settings, refer to the modem procedure located in the English/Procedures folder of the Hydran 201i System installation CD. A typical communication configuration with a modem is shown in Figure 10-5.
  • Page 150 Hydran* 201i Instruction Manual Figure 10-5: Typical Communication Configuration with a Modem If desired, the user can install their own modem, although a few settings must be expected to make it functional. When using a modem, each Hydran 201Ti can be set to either one of the two following modes (in the Communication submenu;...
  • Page 151: Communication Protocol

    Hydran* 201i Instruction Manual In the Call OnAlarm mode, the following actions are performed when an alarm is triggered: • The H201Ti sends the ATDS0 command through the selected communication channel (USB or supervisory link; see the CommChannel and DefaultChannel parameters in the Communication submenu).
  • Page 152: Local Network Installation

    10.5.1 Installing an RS-485 Local Network Link between Hydran 201 Tis or between 201 Ci Controllers A local network is a chain of Hydran 201Ti, Hydran 201i Systems and/or Hydran 201R Model i’s in which the Hydran 201Ti or the 201Ci Controllers are connected together using an RS-485 link.
  • Page 153: Connecting A Host Computer To A Hydran 201Ci Controller In A Local

    Hydran* 201i Instruction Manual 10.5.2 Connecting a Host Computer to a Hydran 201Ci Controller in a Local Network, using an RS-485 Cable The supplied USB cable can be connected to any H201Ci in a local network to allow a host computer to communicate with all H201Ci’s and Hydran 201Ti’s in the network. A RS-232 cable can also be used to allow the host computer to communicate with all H201Ci’s and Hydran 201Ti’s in the network.
  • Page 154: Optional Modem Installation

    Hydran* 201i Instruction Manual 10.6 Optional Modem Installation Remote communications with a Hydran 201i System or a Hydran 201R Model i can be established using a telephone system (private or public). This Section pertains to Hydran 201Ci Controllers equipped with an internal modem (optional, available from General Electric).
  • Page 155: Configuring The Call Onalarm Mode

    2. This modem telephones to the H201Ci’s modem. 3. The Hydran Host software sets to Call OnAlarm the CommMode parameter of all Hydran 201Ti’s in the Hydran 201i System or in the local network. 4. The Hydran Host software hangs up.
  • Page 156: Alarms

    Hydran* 201i Instruction Manual ALARMS This Chapter explains in detail the sophisticated alarm features of the Hydran 201i System from an operator’s point of view. Note: The complete list of alarm messages and each corresponding troubleshooting procedure are given in Section 13.1.
  • Page 157: Alarm Levels

    High alarm. It is a warning sign and should trigger immediate operator action according to standard utility procedures. • Fail alarm of the Hydran 201i System: This alarm includes all alarms other than the High and High-High alarms. The fail alarm warns the operator that the Hydran 201i System is not functioning properly.
  • Page 158: Purpose Of Hourly And Daily Trends

    Detection of hourly and daily trend alarm conditions is a unique feature of the Hydran 201i System that provides early warning of slowly increasing gas level. For example, let us consider a transformer with a 50-ppm gas level and a typical gas High alarm set point of 150 ppm.
  • Page 159: Alarm Contacts

    Hydran* 201i Instruction Manual Note: The Hydran 201Ci -C does not have alarm relays. The H201Ci-1 alarm relays are more accessible than the H201Ti’s relays. Generally, the H201Ci-1 alarm relays are the ones connected to an alarm panel or SCADA system. 11.2.1 Alarm Contacts Each relay has: •...
  • Page 160: Operation Modes Of Alarm Relays

    • The fail alarm relay, however, is de-energized when an alarm condition is detected, to permit to detect a power failure (the relay’s power being immediately off). This feature of the Hydran 201i System strengthens the security of the alarm system. The fail alarm relay is thus energized (NO contacts closed and NC contacts open) if no alarm condition is detected.
  • Page 161: Alarm Interface

    11.3 Alarm Interface The alarm interface between the Hydran 201i System and the user can take different forms. When an alarm is triggered, the following actions are generated: 1. An alarm message flashes on the Hydran 201Ti’s display. For example: Gas H;250ppm (the gas level exceeds the gas High alarm set point, which is currently...
  • Page 162: Gas High And High-High Alarms

    Hydran* 201i Instruction Manual alarm is triggered. The push-button’s alarm indicator is latched; in other words, it remains on even if the alarm condition has disappeared and even if the alarm is acknowledged (using the H201Ti’s keypad or the Hydran Host software). To turn it off, you must press the corresponding push-button;...
  • Page 163 Before setting these alarm set points, the readings of the Hydran 201i System should be monitored over a minimum period of two weeks. A simple method to monitor this value is to consult the Hydran 201Ti’s historic data files using its keypad (see Section...
  • Page 164: Guidelines For Setting Trend Alarms

    Increasing the period decreases the normal fluctuations of the readings, but increases the response time. The readings of the Hydran 201i System should be monitored over a minimum period of two weeks before setting these parameters; follow the same rules as for the gas High alarm (see Section 1.1.1.5).
  • Page 165: Hourly And Daily Trend Computations

    Hydran* 201i Instruction Manual This Section provides a few guidelines to optimize both the hourly and daily trend alarms. 1. If a fast response to a sudden gas level increase is needed, it is best to rely on the gas level alarm rather than on trend alarms. Trend alarms are ideal when it comes to detect slow and steady changes from fluctuating readings, but are not as good to detect abrupt changes.
  • Page 166: High And High-High Alarms Triggering

    Hydran* 201i Instruction Manual Initial After 8 hours After 24 hours After 48 hours 0ppm/24 hr +4ppm/24 hr +9ppm/24 hr +10ppm/24 hr Table 11-5: Evolution of the Hourly Trend Example 2: The gas level starts to increase at a rate of 50 ppm/30 days. The daily trend period is set to 30 days.
  • Page 167: High And High-High Alarms Cancellation

    Hydran* 201i Instruction Manual 11.4.5 High and High-High Alarms Cancellation Note: To be cancelled, an alarm condition must disappear during a period of time exceeding the corresponding alarm delay. To cancel a High or High-High alarm, proceed as follows: 1. Find and solve the problem. Generally, the Hydran 201Ti’s reading must be verified by sampling the transformer’s oil and performing a dissolved gas analysis (DGA).
  • Page 168: Fault Triggers

    Hydran* 201i Instruction Manual • One of the fault triggers conditions, listed in Table 11-1 (for details, see Section 11.5.2 below). 11.5.2 Fault Triggers Fault triggers are fail alarm conditions that can produce two actions: 1. Display of a message on the screen. The alarm message is displayed only if the corresponding alarm set point is adjusted to a value;...
  • Page 169 Hydran* 201i Instruction Manual Description Priority Alarm Set Point Fault Trigger Alarm Message Low-Low gas level GasAlr LL Gas LL Low gas level GasAlr L Gas L Low-Low hourly HourTrAlr LL Hour Trend LL trend Average Low hourly trend HourTrAlr L Hour Trend L Low-Low daily trend DayTrAlr LL...
  • Page 170 Hydran* 201i Instruction Manual 1.1.1.10 Battery Voltage Fault Triggers The parameters pertaining to these alarm conditions are presented in Table 11-9 below and set in the H201Ti’s Service; Battery and SysOK Relay; FaultTrig. Sub-menus (for explanations, see Chapter 5). Description Priority Alarm Set Point Fault Trigger Alarm...
  • Page 171: Fail Alarm Cancellation

    Hydran* 201i Instruction Manual 11.5.3 Fail Alarm Cancellation Note: To be cancelled, an alarm condition must disappear during a period of time exceeding the corresponding alarm delay (if existing for this condition). To cancel a fail alarm, proceed as follows: 1.
  • Page 172: Operating The Hydran 201I System

    The periodic, visual monitoring method has a deficient response time following the detection of an alarm; this response time cannot be inferior to the period of time between two inspections. The Hydran 201i System, however, has a response time measured in minutes.
  • Page 173: Alarm Monitoring

    Hydran* 201i Instruction Manual 12.1.2 Alarm Monitoring The alarm monitoring method solves the disadvantages of the periodic, visual monitoring method as follows: • Connecting the alarm contacts to an alarm panel (or any other SCADA system) located in the station’s control room. •...
  • Page 174: Combined Alarm And Analog Output Monitoring

    Hydran* 201i Instruction Manual 1.1.1.14 Method Drawbacks Analog outputs have the following disadvantages: • Analog outputs are generally sensitive to electric noise. Special software must be used to compute the gas hourly and daily trends using “noisy” data. • It is not possible to detect analog outputs that are out of calibration. •...
  • Page 175: Local Monitoring With Host Computer

    12.1.6 Remote Monitoring With Host Computer The remote monitoring with host computer method consists of connecting a host computer running the Hydran Host software to a Hydran 201i System or to one or several network(s) of Hydran 201i Systems located at different locations, through a telephone system and a modem link.
  • Page 176: Data Reading

    Hydran* 201i Instruction Manual • A modem can be connected to any Hydran 201i System in a local network. The modem is typically installed in any of the local network’s Hydran 201Ci Controllers. • The modem of the local network is connected to a telephone line.
  • Page 177: Historic Data Reading

    • With the Perception software 12.3 Data Analysis The Hydran 201i System generates numerous data to assist in the early detection of incipient faults in transformers or other oil-filled equipment. Other parameters (transformer load, oil temperature, dissolved gas analysis [DGA]) can also be useful in interpreting the gas level and trend evolutions.
  • Page 178: Troubleshooting

    Hydran* 201i Instruction Manual TROUBLESHOOTING Read all of the warnings and recommendations in Section 6.1 CAUTION before attempting one of the troubleshooting procedures listed in this Chapter. The following useful references help to understand the instructions given in this Chapter: •...
  • Page 179: Battery L

    Hydran* 201i Instruction Manual 13.1.1 Battery L • Alarm type: Fail alarm • Non-abbreviated description: Battery voltage Low • Priority: Very low • Parameter(s) involved: Batt. L; SysOK Relay; FaultTrig. submenu; Section 5.5.7. Batt.Alr L (alarm set point); Service; VoltPile submenu; Section 5.5.4.3. BattAlr Delay;...
  • Page 180: Cableshort

    Hydran* 201i Instruction Manual • Verify whether the HeaterTemp value in the extended Temperature submenu displays -75°C (-103°F). If so, the heating plate thermistor cable (or a connector in the chain of connections) is the one causing the alarm. • If the two above temperature readings are correct, execute the ForceSensor Test command in the Service submenu.
  • Page 181: Daytrend H

    3. If the gas level value is abnormally too high and the alarm set point is set to an adequate value, verify the reading accuracy of the Hydran 201i System. Perform a dissolved gas analysis (DGA; see Section 14.6).
  • Page 182: Daytrend L

    Hydran* 201i Instruction Manual 13.1.7 DayTrend L • Alarm type: Fail alarm • Non-abbreviated description: Daily trend Low • Priority: Medium • Parameter(s) involved: DayTrend L; SysOK Relay;FaultTrig. submenu; Section 5.5.7. DayTrAlr L (alarm set point); Gas;DailyTrend submenu; Section 5.5.2.3. DayTrAlr Delay;...
  • Page 183: Gas H

    Hydran* 201i Instruction Manual • Alarm cause(s): Daily trend below the DayTrAlr LL alarm set point. Probably indicates a gas level reading problem. Proceed as described for the DayTrend L alarm (Section 13.1.7 above). 13.1.9 Gas H • Alarm type: Gas alarm •...
  • Page 184: Gas Ll

    Hydran* 201i Instruction Manual 13.1.12 Gas LL • Alarm type: Fail alarm • Non-abbreviated description: Gas level Low-Low • Priority: Medium • Parameter(s) involved: Gas LL; SysOK Relay;FaultTrig. submenu; Section 5.5.7 GasAlr LL (alarm set point); Gas;GasLevel submenu; Section 5.5.2.1 GasAlr Delay;...
  • Page 185: Hourtrend L

    Hydran* 201i Instruction Manual Perform step 1 in Section 13.1.13 above, and then steps 2 to 5 in Section 13.1.5. 13.1.15 HourTrend L • Alarm type: Fail alarm • Non-abbreviated description: Hourly trend Low • Priority: Medium • Parameter(s) involved: HourTrend L;...
  • Page 186: Sensor Not Inst

    Hydran* 201i Instruction Manual No set point nor delay • Alarm cause(s): The sensor sensitivity has dropped significantly or the sensor is not functioning. Replace sensor as soon as possible. Note: The Hydran 201Ti’s H201 sensor is verified twice a month (the first and fifteenth days of the month at midnight);...
  • Page 187: Senstemp Hh

    Hydran* 201i Instruction Manual Although the H201 sensor is not affected by the temperature, monitor its temperature regularly. 13.1.20 SensTemp HH • Alarm type: Fail alarm • Non-abbreviated description : Sensor temperature High-High • Priority: Medium • Parameter(s) involved: SensTemp HH; SysOK Relay; FaultTrig. submenu; Section 5.5.7 STempAlr HH (alarm set point);...
  • Page 188: Senstemp Ll

    Hydran* 201i Instruction Manual 13.1.22 SensTemp LL • Alarm type: Fail alarm • Non-abbreviated description: Sensor temperature Low-Low • Priority: Medium • Parameter(s) involved: SensTemp LL; SysOK Relay;FaultTrig. submenu; Section 5.5.7 STempAlr LL (alarm set point); Temperature submenu; Section 5.5.3 TempoAlr Delay;...
  • Page 189: Rs-232, Usb And/Or Rs-485 Communications

    Hydran* 201i Instruction Manual 13.2 RS-232, USB and/or RS-485 Communications 13.2.1 No Communication when the Host Computer is connected directly or by Modem to the Hydran 201Ti’s USB Connector 1. Ensure the H201Ti’s CommChannel parameter (communication channel; Communication submenu; Section 5.5.6.1) is set to Local USB (for Hydran protocol only) or LocalUSB MODBUS (for ModBus protocol only).
  • Page 190: No Communication Between The Host Computer And The Network Of

    Hydran* 201i Instruction Manual 13.2.3 No Communication between the Host Computer and the Network of Hydran 201i Systems 1. Connect the host computer to each Hydran 201Ci Controller and perform the tests listed in Section 13.2.2 above. 2. Verify all RS-485 local network link cables.
  • Page 191: Alarms

    Hydran* 201i Instruction Manual 13.5 Alarms 13.5.1 Fail Alarm is Triggered 1. Read the alarm message on the Hydran 201Ti’s display to identify the cause of the alarm. Then see Section 13.1. 2. Verify the fuses and power supply of the Hydran 201Ci Controller and H201Ti. 3.
  • Page 192: Inaccurate Gas Readings

    Hydran* 201i Instruction Manual 3. Verify the Hydran 201 sensor’s serial number and parameters in the H201Ti’s Service; SensorCal Data submenu (Section 5.5.4.1). 4. Execute the H201Ti’s ForceSensor Test command (Relays/Analog submenu) to test sensor operation. 5. Verify the value of the HourlyTr Period parameter (period of the hourly trend; Gas; HourlyTrend submenu).
  • Page 193: Maintenance

    Hydran* 201i Instruction Manual MAINTENANCE The maintenance schedule suggested in this Chapter provides optimum performance and reliability from the Hydran 201i System. The maintenance routines should be performed in fair weather. All procedures in this manual must be strictly adhered to. Any...
  • Page 194: Replacing The Fuse

    14.4 Periodic Maintenance The person in charge of maintenance must already be familiar enough with the Hydran 201i System to: • Use and set the Hydran 201Ti’s parameters with its keypad. • Use the Hydran 201Ci Controller and communicate with it.
  • Page 195 Hydran* 201i Instruction Manual Routine Frequency Historic data verification (Section 14.5) Annually or on alarm Dissolved gas analysis (DGA; Section 14.6) Annually or on fail Hydran 201Ti verification (Section 14.7): alarm • Visual inspection • LED’s, heater, display and keypad verification (Section 7.2.2) •...
  • Page 196: Historic Data Verification

    The dissolved gas analysis (DGA) is the reference method used to determine the exact level of dissolved gases in oil. A DGA should be performed at least once a year. To verify the readings of the Hydran 201i System using a DGA, proceed as follows: 1. Note the Hydran 201Ti’s gas level reading.
  • Page 197: Hydran 201Ti Verification

    Hydran* 201i Instruction Manual The Hydran 201i System gives a composite reading of the first four gases in the above list, in other words the gases generated by transformer incipient faults. This reading can be compared to the DGA results using the following formula:...
  • Page 198 Hydran* 201i Instruction Manual WARNING AC power supply voltage is present on most terminals. 4. Verify the LED’s, the heater, the display and the keypad by performing the procedure in Section7.2.2. 5. Using the H201Ti’s keypad or a host computer running the Hydran Host software (see the Hydran Host Software Manual), verify the date and time in the Date&Time submenu (Section 5.5.5) by performing the procedure in Section 7.4.9.
  • Page 199: Hydran 201Ci Controller Verification

    Hydran* 201i Instruction Manual 14.8 Hydran 201Ci Controller Verification Frequency: Annually or on fail alarm Note: Alarms are triggered during this verification procedure. Please warn the appropriate personnel. The H201Ci is verified as follows: Check for water or dust infiltration inside the enclosure. If necessary, clean and fix the enclosure.
  • Page 200: Decommissioning The Hydran 201Ti

    The decommissioning of the Hydran 201Ti must be executed by trained service personnel only. 1. Switch OFF the circuit breaker to which the power cable of the Hydran 201i system is connected. 2. Verify, with a voltmeter, there is no AC or DC voltage on the power cable.
  • Page 201: Removing The Hydran 201Ti

    Hydran* 201i Instruction Manual 15.3 Removing the Hydran 201Ti 1. Refer to section 6.2.1 for the tools required Perform this step according to company regulations. Proceed CAUTION carefully to avoid introducing air into the transformer. Use a bucket to collect oil. 2.
  • Page 202: Appendix A : Technical Specifications For The Hydran 201I System

    Hydran* 201i Instruction Manual Appendix A : Technical Specifications for the Hydran 201i System Hydran 201Ti Intelligent Transmitter GENERAL Description Continuous, on-line, intelligent gas-in-oil transmitter Components Sensor and electronic modules housed in cylindrical enclosure Gas Response Hydrogen (H ), carbon monoxide (CO), acetylene (C...
  • Page 203 Hydran* 201i Instruction Manual ELECTRONIC UNIT Hardware Microprocessor; watchdog; clock Software Real-time operating system; menu-driven interface Functions - Gas level, hourly trend and daily trend readings Gas level and gas trends an fail alarms History data logging (Short Term, Long Term, Events and Service) Periodic sensor test Calibration, configuration and self-test...
  • Page 204 Hydran* 201i Instruction Manual transformer valve; other dimensions are available Oil Temperatures Oil at the valve: -40 to +90°C (-40 to +194°F) With finned, high-temperature adaptor: Oil up to 105 °C (221 °F) Possible short-duration exposure: Oil up to 120 °C (248 °F) Oil Pressure Vacuum-resistant sensor;...
  • Page 205: Hydran 201Ci-C Communications Controller

    Hydran* 201i Instruction Manual  Note 1: At low temperatures, the LCD display might not be legible, but all other functionalities are fully operational.  Note 2: For operation ambient temperature lower than -40°C, consult General Electric Customer Service. General Electric has made every reasonable attempt to ensure the completeness and accuracy of these technical specifications.
  • Page 206 Hydran* 201i Instruction Manual Power supply: Separate, isolated, impedance-protected, +15 Vdc RS485 Local Standard RS-485 communication port allows daisy-chaining of Network Link up to 32 H201Ci Controllers (H201Ci-C’s and/or H201Ci-1’s) via (Isolated) the Main Terminal Block One twisted triad (16 or 18 AWG) with overall shield required Maximal total daisy-chain length: 1,200 m (4,000 ft) RS-232 or USB Standard RS-232 port (DB-9 connector), or standard USB link...
  • Page 207: Hydran 201Ci-1 One-Channel Controller

    Hydran* 201i Instruction Manual Weight • Installed: 6.6kg (15lb) • Shipping: 7.5kg (17lb) Hydran Host Supports all H201Ti functions plus networking and embedded Software software upgrading; available in Microsoft Windows version ENVIRONMENTAL CONDITIONS Operation Ambient temperature*: -40 to +55˚C (-40 to +131˚F) Relative humidity: 95% RH, non-condensing Altitude: up to 2,000m (6,500ft) Storage Ambient temperature: +5 to +45˚C (41 to +113˚F)
  • Page 208 Hydran* 201i Instruction Manual Isolated Analog 4–20 mA, 0–2000 ppm range Outputs Gas Alarms High and High-High alarms duplicate alarms in H201Ti: Gas level, hourly and daily trends Fail Alarm Duplicates alarm in H201Ti: Power failure, loss of communications, sensor and other system malfunctions; upon system fault, analog outputs are set to zero and display is blanked Alarm Contacts Gas High, Gas High-High and System Fail...
  • Page 209 Hydran* 201i Instruction Manual Recommendation Run all communication cables in flexible or rigid, metallic conduits for maximum mechanical and electrical protection MISCELLANEOUS Enclosure Type NEMA 4X steel enclosure; baked enamel; textured white finish Dimensions 244.5 x 349.3 x 157.7 mm (9-5/8 x 13-3/4 x 3-3/16 in) Power Supply Rated voltage: 100–120 VAC or 200–240 VAC, 50/60 Hz Rated power: 160 VA maximum Standards Met •...
  • Page 210 Hydran* 201i Instruction Manual Storage Ambient temperature: +5 to +45˚C (41 to +113˚F)  Note: For operation ambient temperature lower than -40°C, consult General Electric Customer Service. General Electric has made every reasonable attempt to ensure the completeness and accuracy of these technical specifications. However, the information contained in these technical specifications is subject to change without notice, and does not represent a commitment on the part of General Electric.
  • Page 211: Appendix B : Mechanical Drawings

    Hydran* 201i Instruction Manual Appendix B : Mechanical Drawings Hydran 201Ti Intelligent Transmitter Figure B - 1: Hydran 201Ti Dimensions Figure B - 2: Hydran 201 Sensor MA-033 Rev. 14.0, 12-Nov-18 Page 211...
  • Page 212 Hydran* 201i Instruction Manual Figure B - 3: 1.5 in Adapter Figure B - 4: 1 in Adapter Page 212 MA-033 Rev. 14.0, 12-Nov-18...
  • Page 213 Hydran* 201i Instruction Manual Figure B - 5: 2 in Adapter Figure B - 6: Finned High Temperature Adaptor MA-033 Rev. 14.0, 12-Nov-18 Page 213...
  • Page 214: Hydran 201Ci-C Communications Controller

    Hydran* 201i Instruction Manual Hydran 201Ci-C Communications Controller Figure B - 7: Hydran 201Ci-C Dimensions Page 214 MA-033 Rev. 14.0, 12-Nov-18...
  • Page 215: Hydran 201Ci-1 One-Channel Controller

    Hydran* 201i Instruction Manual Hydran 201Ci-1 One-Channel Controller Figure B - 8: Hydran 201Ci-1 Dimensions MA-033 Rev. 14.0, 12-Nov-18 Page 215...
  • Page 216: Appendix C : Functional Block Diagrams

    Hydran* 201i Instruction Manual Appendix C : Functional Block Diagrams Hydran 201Ti Intelligent Transmitter Figure C-1 - Functional Block Diagram for the Hydran 201Ti Page 216 MA-033 Rev. 14.0, 12-Nov-18...
  • Page 217: Hydran 201Ci-C Communications Controller

    Hydran* 201i Instruction Manual Hydran 201Ci-C Communications Controller Figure C-2 - Functional Block Diagram for the Hydran 201Ci-C MA-033 Rev. 14.0, 12-Nov-18 Page 217...
  • Page 218: Hydran 201Ci-1 One-Channel Controller

    Hydran* 201i Instruction Manual Hydran 201Ci-1 One-Channel Controller Figure C-3 - Functional Block Diagram for the Hydran 201Ci-1 Page 218 MA-033 Rev. 14.0, 12-Nov-18...
  • Page 219: Appendix D : Terminal Blocks And Connectors

    Hydran* 201i Instruction Manual Appendix D : Terminal Blocks and Connectors Hydran 201Ti Intelligent Transmitter Terminal Description To (Internal) From Comments (External) L1/L Line or Line 1 JP0-1 through Live side of line filter AC supply F1 fuse 5A, 250V L2/N Neutral or Line 2 JP0-2 through...
  • Page 220 Hydran* 201i Instruction Manual Table D - 2: Alarm Contacts 9 Terminal Block and J5 Connector Voltage Selector Voltage Range Comment 115V 100–120 VAC, 50/60 Hz 430 W maximum heating 230V 200–240 VAC, @ 264 VAC 50/60 Hz a: The voltage selector is factory-selected and configured as per user requirements Table D - 3: SW1 Voltage Selector Terminal Description...
  • Page 221 Hydran* 201i Instruction Manual Terminal Description From To (External) Comments (Internal) TDM pulse, output (-) Isolated Isolated Must be RS-422 driver, RS-422 connected TDM pulse, output (+) J4-1 and J4-2 receiver to H201Ci-1; not used with H201Ci-C Serial data, I/O (-) Isolated Isolated Must be...
  • Page 222 Hydran* 201i Instruction Manual Terminal Name Description VBUS Data - Data + Ground Table D - 7: USB Type B Connector (Side of CPU Module) Figure D - 1: Wiring Diagram for Active Current Output Figure D - 2: Wiring Diagram for Passive Current Output Page 222 MA-033 Rev.
  • Page 223: Hydran 201Ci-C Communications Controller

    Hydran* 201i Instruction Manual Hydran 201Ci-C Communications Controller Terminal Description From (Internal) To (External) Comments Line or Line1 J2-1, ac supply Live side of connector ac supply F11 fuse: 5 A, 250 V Neutral or J2-2, ac supply Other side of Line2 connector ac supply...
  • Page 224 Hydran* 201i Instruction Manual Terminal Description From (Internal) To (External) Comments Serial data(-), J13-3, supervisory Isolated RS- Must be I/O unit No. 3 link connector No. 3 connected Serial data(+), J13-4, supervisory transceiver to H201Ti I/O unit No. 3 link connector No. 3 Loop supply(-), J13-2, supervisory Isolated...
  • Page 225 Hydran* 201i Instruction Manual Terminal Description From (Internal) To (External) Comments regulator into Loop supply(+), J12-1, supervisory input H201Ci input link connector No. 2 Cable shield Chassis Supervisory Direct link cable ground shield of connection unit No 2 Not used Serial data(-), J15-3, supervisory Isolated...
  • Page 226 Hydran* 201i Instruction Manual Terminal Name Direction Comments To H201Ci The DB-9 connector is (receives data) wired as in a PC: Cross wires 2 and 3 when From H201Ci connecting to a PC; do (transmits data) not cross wires 2 & 3 when attaching a GND (signal ground)t modem.
  • Page 227: Hydran 201Ci-1 One-Channel Controller

    Hydran* 201i Instruction Manual Hydran 201Ci-1 One-Channel Controller Terminal Description From (Internal) To (External) Comments Line or Line1 J2-1, ac supply Live side of connector ac supply F11 fuse: 5 A, 250 V Neutral or J2-2, ac supply Other side of Line2 connector ac supply...
  • Page 228 Hydran* 201i Instruction Manual Terminal Description From (Internal) To (External) Comments (Alarm 1) NC contacts 300Vdc connector 1,250 VA @ 240Vac System Fail J18-3, alarm NO (closed contacts when no connector alarm) J18-2, alarm System Fail contacts Common connector System Fail NC J18-1, alarm (open when no contacts...
  • Page 229 Hydran* 201i Instruction Manual Terminal Description From (Internal) To (External) Comments Not used TDM pulse(-), J15-1, supervisory input link connector Isolated RS- 422 driver TDM pulse(+), J15-2, supervisory Must be input link connector connected Serial data(-), J15-3, supervisory to H201Ti Isolated RS- I/O unit No.
  • Page 230 Hydran* 201i Instruction Manual Voltage Selector Voltage Range Comment 115V 100–120 VAC 50/60 Hz 130W maximum heating @ 264 VAC 230V 200–240 VAC 50/60 Hz a: The voltage selector is factory-selected and configured as per user requirements Table D - 12: SW1 Voltage Selector for the Hydran 201Ci-1 Terminal Name Direction...
  • Page 231: Appendix E : Hydran 201Ti's History File Messages

    Hydran* 201i Instruction Manual Appendix E : Hydran 201Ti’s History File Messages This Appendix complements Section 5.5.1. The messages below are sorted in alphabetical order: Event Message Description AnalogMode chg Modification of the analog output’s operation mode Batt.Alr Ack Battery voltage alarm has been acknowledged BattAlr L chg Modification of the Low battery voltage alarm’s set point BattAlr L OFF...
  • Page 232 Hydran* 201i Instruction Manual DayAlr LL chg Modification of the Low-Low daily trend alarm’s set point DayAlr LL OFF Low-Low daily trend alarm turned off DayAlr LL ON Low-Low daily trend alarm turned on DayDelay chg Modification of the daily trend alarm’s delay DefaultChan chg Modification of the default communication channel GasAlr Ack...
  • Page 233 Hydran* 201i Instruction Manual HourAlr HH OFF Hourly trend High-High alarm turned off HourAlr HH ON Hourly trend High-High alarm turned on HourAlr L chg Modification of the hourly trend Low alarm’s set point HourAlr L OFF Hourly trend Low alarm turned off HourAlr L ON Hourly trend Low alarm turned on HourAlr LL chg...
  • Page 234 Hydran* 201i Instruction Manual Set-up Lost ON Setup lost alarm turned on Soft WatchDog Reset of Hydran 201Ti induced by the software watchdog Sp Span chg Modification of the sensor temperature set point’s range STempAlr Ack Sensor temperature fail alarm has been acknowledged STempAlr H chg Modification of the sensor temperature High alarm’s set point STempAlr H ON...
  • Page 235: Appendix F : Default Values Of Parameters

    Hydran* 201i Instruction Manual Appendix F : Default Values of Parameters Table F-1 below presents the default values of the adjustable parameters after the battery has been disconnected or after the Hydran 201Ti’s embedded software has been upgraded. Category Parameter Unit Value Status...
  • Page 236 Hydran* 201i Instruction Manual Category Parameter Unit Value Status Temperature Desired temperature ˚C Modulation amplitude ˚C 10.0 Period A Minutes Low-Low alarm ˚C Enabled Low alarm ˚C Enabled High Alarm ˚C Enabled High-High Alarm ˚C Enabled Alarms delay Minutes Battery Low-Low alarm Volt 2.45...
  • Page 237 Hydran* 201i Instruction Manual Category Parameter Unit Value Status Gas High Normal Gas High-High Normal Relays/Analog SysOK Normal Analog output Normal TDM pulse output Normal Low-Low gas level Disabled Low gas level Disabled Low-Low Hourly trend Disabled Low Hourly trend Disabled Low-Low Daily trend Disabled...
  • Page 238: Appendix G : Unit Conversions

    Hydran* 201i Instruction Manual Appendix G : Unit Conversions In a current loop, any length of cable and number of devices can be connected in series provided that the following conditions are met: • All devices have floating differential inputs (both leads of signal input are ungrounded).
  • Page 239: Appendix H : Usb Port Driver Installation

    Hydran* 201i Instruction Manual Appendix H : USB Port Driver Installation In order to enable the Hydran Host software to work with Hydran 201Ti when connecting to it via the USB Communication port, the appropriate driver must be properly installed on the computer where Hydran Host is installed. It is also important to identify on which COM port of the computer the USB driver is installed.
  • Page 240: Appendix I : Extracting An Oil Sample

    Hydran* 201i Instruction Manual Appendix I : Extracting an Oil Sample Proceed as follows to sample the oil from the transformer (see below): Remove the Hydran 201Ti’s aluminum cover. Open the Luer stopcock valve of the glass syringe and ensure the syringe is free of air. 3.
  • Page 241 Hydran* 201i Instruction Manual Figure H-1: Extracting an Oil Sample from the Sensor's Sampling Port Using a Glass Syringe and a 5/32 in Allen Key MA-033 Rev. 14.0, 12-Nov-18 Page 241...
  • Page 242: Appendix J : Modbus Protocol Documentation

    Starting with the firmware version 4.0, Hydran 201Ti supports Modbus communication protocol to allow connection to equipment such as SCADA masters, and other Modbus master interface, GE’s Perception software or other user software PC interface. The Modicon Modbus RTU protocol is the most basic protocol supported. In H201Ti Modbus is available via USB and RS-485 serial links.
  • Page 243 Hydran* 201i Instruction Manual In a Modbus network architecture every slave unit is identified by its unique address. The master device relies on these specific addresses in order to identify the slave station it communicates with. The slave does not respond to requests issued by a master unless the address embedded in the Modbus telegram matches its own address (broadcast telegrams are discarded).
  • Page 244 Hydran* 201i Instruction Manual is an industry-standard method used for error detection. If a Modbus slave device receives a packet in which an error is indicated by the CRC, the slave device discards the packet, thus preventing any erroneous operations. See Section J.2.4 below for details on CRC calculation.
  • Page 245 Hydran* 201i Instruction Manual 0 --> j Di (+) Alow --> Alow j + 1 --> j shr (A) Is there a No: go to 8; Yes: G (+) A --> A and carry? continue Is j = 8? No: go to 5; Yes: continue i + 1 -->...
  • Page 246: Modbus Pdu Description

    Hydran* 201i Instruction Manual Symbol Description is shifted into the MSbit of x, all other bits are shifted right one location) Table J - 3: Description of the Symbols Used in the CRC-16 Algorithm Modbus PDU Description The Modbus protocol defines a simple Protocol Data Unit (PDU) independent of the underlying communication layer.
  • Page 247 Hydran* 201i Instruction Manual Modbus Date Type Referred as Function Code (hex) Read coil status Read Binary Read discrete input status Read holding registers Read Analog Read input register Force single coil Write Binary Force multiple coils Preset single holding register Write Analog Preset multiple holding registers Table J - 4: Function codes...
  • Page 248 Hydran* 201i Instruction Manual Function Code 1 byte Request Starting Address 2 bytes 0000h to FFFFh Quantity of Coils 2 bytes 1 to 2,000 (07D0h) Function Code 1 byte Response Byte Count 2 bytes Coils Status n bytes n = N or N + 1 Error Code 1 byte Error...
  • Page 249 Hydran* 201i Instruction Manual J.3.1.2 Write (SET or FORCE) Single Coil (05h) This function is used to set a binary value. Only one binary can be set at a time. The address to set and the value must be specified. The value will be FF00h to set a binary, and 0000h to clear it.
  • Page 250 Hydran* 201i Instruction Manual J.3.1.3 Read Holding Registers (03h) / Read Input Registers (04h) This function code is used by the master to read one or more consecutive data registers (actual values or settings). Data registers are always 16-bit (two-byte) values transmitted with the high-order byte first.
  • Page 251 Hydran* 201i Instruction Manual Request Response Field Name (hex) Field Name (hex) Function Function Starting Address Hi Byte Count Starting Address Lo Registers Value Hi (108) Number of Registers Hi Registers Value Lo (108) Number of Registers Lo Registers Value Hi (109) Registers Value Lo (109) Registers Value Hi (110) Registers Value Lo (110)
  • Page 252: Hydran 201Ti Data Model

    Hydran* 201i Instruction Manual Starting Address Hi Starting Address Hi Starting Address Lo Starting Address Lo Quantity of Registers Hi Quantity of Registers Hi Quantity of Registers Lo Quantity of Registers Lo Byte Count Register Value Hi Register Value Lo Register Value Hi Register Value Lo Table J - 13: Writing of Data Registers with the Address 1 &...
  • Page 253 Hydran* 201i Instruction Manual Modbus Data Type Object Type Access Type Comment Discrete Inputs Read only Referenced as binary Single bit data objects Coils Read-write Input Registers Read only Referenced as analog 16-bit word data objects Holding Registers Read-write Table J - 15: Modbus Data Types Basically, the Modbus register mapping can be summarized as this: •...
  • Page 254 Hydran* 201i Instruction Manual 32-Bit Integer Analog Input Read Modbus has no support for 32-bit variables. In order to access the Hydran 201Ti’s 32- bit variables, an access must be implemented to 32-bit values. All Hydran 201Ti variables with a value exceeding 16 bits are accessible through the Int32 registers type in the Modbus Holding Registers map.
  • Page 255 Hydran* 201i Instruction Manual 1. First you need to know the point index of the first Modbus Holding Register where the string can be accessed; refer to J.5 for mapping details. 2. Issue a Read Holding Registers command with this point index as start register. Since you can’t read the complete 128 registers in a single Modbus query, the embedded device always buffers the last string object accessed.
  • Page 256: Addresses Mapping

    Hydran* 201i Instruction Manual The steps to change system date and time are as follows: 4. Write Level 1 Password to the SCADA Password holding register. 5. Write new system date and time value to the System Date register using command 16 Preset multiple holding registers.
  • Page 257 Hydran* 201i Instruction Manual Modbus Register Description Format Default Address 32831 Alarm_Hourly_L_Active F1002 0 (Off) 32832 Alarm_Hourly_H_Active F1002 0 (Off) 32833 Alarm_Hourly_HH_Active F1002 0 (Off) 32834 Alarm_Daily_LL_Active F1002 0 (Off) 32835 Alarm_Daily_L_Active F1002 0 (Off) 32836 Alarm_Daily_H_Active F1002 0 (Off) 32837 Alarm_Daily_HH_Active F1002...
  • Page 258 Hydran* 201i Instruction Manual Modbus Register Description Format Default Address 32863 Alarm_SensTemp_H_Pending F1003 0 (Acknowledged) 32864 Alarm_SensTemp_HH_Pending F1003 0 (Acknowledged) 32865 Alarm_Battery_LL_Pending F1003 0 (Acknowledged) 32866 Alarm_Battery_L_Pending F1003 0 (Acknowledged) 32867 Alarm_Battery_H_Pending F1003 0 (Acknowledged) 32868 Alarm_SetupLost_Pending F1003 0 (Acknowledged) 32869 Alarm_SensTest_CableShort_Pending F1003...
  • Page 259 Hydran* 201i Instruction Manual J.5.2 Address Mapping for the Holding registers Modbus Register Multiplication Description Range Units Precision Format Int16 Int32 Float32 factor 16897 System Date 0 - 4294967295 seconds Unix Time 16899 Firmware source code revision Id 0 - 4294967295 16901 Firmware source code sequential Id 0 - 4294967295...
  • Page 260 Hydran* 201i Instruction Manual J.5.3 Address Mapping for the String registers Modbus Register Description Range Default Format Register 20481 Device type and identifier " " StringWithLen 21889 H201Ti Serial Number " " StringWithLen Table J - 18: Hydran 201 Ti String registries map The Device type and identifier string (first string in the Table J-18 above) consists of the following semicolon-separated fields: •...
  • Page 261: Appendix K : Glossary

    Hydran* 201i Instruction Manual Appendix K : Glossary Ampere Alternating Current ACKnowledge A/D or ADC Analog-to-Digital Converter Alarm Condition when a data point value exceeds a set point Alarm Contact Contact of an alarm relay Analog Output Analog signal proportional to gas or moisture level ANSI American National Standards Institute ASTM...
  • Page 262 Four-channel controller and display designed to supervise up to four Hydran 201Ti units. Hydran 201Ci-C Communications controller designed to supervise up to four Hydran 201Ti units Hydran 201i System System comprising of a Hydran 201Ti unit together with a Hydran 201Ci Controller Page 262 MA-033...
  • Page 263 Liquid Crystal Display Light-Emitting Diode LL or Lo-Lo Low-Low alarm Local Network Local network of Hydran 201Ti units or Hydran 201i systems using RS-485 link Local Site User location where the data of the remote site is being analyzed milli-Ampere...
  • Page 264 Hydran* 201i Instruction Manual Mega Volt-Ampere mV/A milli Volt per Ampere Nitrogen (gas) Normally Closed (contact) NEMA National Electrical Manufacturers Association Network See Local Network Normally Open (contact) National Pipe Thread Oxygen (gas) Personal Computer Printed Circuit Board PCBA Printed Circuit Board Assembly Portable Document Format Programmable Logic Controller Part Number...
  • Page 265 Hydran* 201i Instruction Manual RTDB Real-Time Data Base Remote Terminal Unit Room Temperature Vulcanization SCADA Supervisory Control And Data Acquisition SHield Serial Number Set Point SPDT Single Pole Double Throw Structured Query Language Solid-State Relay Submenu A branch of the treelike structure of a menu Terminal Block TCP/IP Transmission Control Protocol/Internet Protocol...
  • Page 266 Hydran* 201i Instruction Manual GE Grid Solutions (UK) Ltd Lissue Industrial Estate East Unit 1, 7 Lissue Walk, Lisburn, BT28 2LU United Kingdom Tel: +44 28 9262 2915 Fax: +44 28 9262 2202 www.gegridsolutions.com/MD.htm Customer Service Center (24 hours a day, 365 days a year) Tel.: +1 800 361 3652 (United States and Canada)

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