Page 1 Feeder Protection System Feeder protection and control Instruction manual 350 revision: 1.41 Manual P/N: 1601-9086-A8 GE publication code: GEK-113507G Copyright © 2011 GE Multilin GE Multilin 215 Anderson Avenue, Markham, Ontario Canada L6E 1B3 Tel: (905) 294-6222 Fax: (905) 201-2098 Internet: http://www.GEmultilin.com...
Page 2 The contents of this manual are the property of GE Multilin Inc. This documentation is furnished on license and may not be reproduced in whole or in part without the permission of GE Multilin. The content of this manual is for informational use only and is subject to change without notice.
Page 3: Table Of Contents
Table of Contents 1. INTRODUCTION Overview ..........................1 - 1 Cautions and warnings ....................1 - 2 Description of the 350 Feeder Protection System..........1 - 3 350 order codes........................1 - 6 Specifications........................1 - 7 Password security........................1 - 7 Protection.............................1 - 7 Metering............................1 - 9 Data capture ..........................1 - 10 Control ............................1 - 10 Inputs .............................1 - 11...
Page 4 Installing the EnerVista SR3 Setup software ..............3 - 10 Connecting EnerVista SR3 Setup to the relay ............3 - 13 Configuring serial communications................3 - 13 Using the Quick Connect feature ..................3 - 14 Configuring Ethernet communications ................3 - 15 Connecting to the relay......................3 - 16 Working with setpoints and setpoint files ..............3 - 17 Engaging a device ........................3 - 17 Entering setpoints........................3 - 17...
Page 5 5. QUICK SETUP - Quick Setup settings......................5 - 3 FRONT CONTROL PANEL 6. SETPOINTS Setpoints Main Menu......................6 - 1 Setpoint entry methods......................6 - 2 Common setpoints ........................6 - 3 Logic diagrams..........................6 - 4 Setting text abbreviations ....................6 - 4 S1 Relay setup ........................6 - 6 Clock ...............................6 - 6 Password security........................6 - 8 Access passwords ........................6 - 9...
Page 6 S4 Controls..........................6 - 114 Change setpoint group ......................6 - 115 Virtual inputs ..........................6 - 117 Logic elements .......................... 6 - 118 Breaker control ......................... 6 - 124 Cold load pickup........................6 - 125 Breaker failure........................... 6 - 128 Autorecloser ..........................
Page 7: Introduction
Digital Energy Multilin 350 Feeder Protection System Chapter 1: Introduction Introduction Overview The 350 is a microprocessor-based relay for primary and backup over-current protection of medium and low voltage distribution feeders. The relay is also suitable for providing over-current protection for small and medium size motors, transformers, generators, and distribution bus-bars.
Page 8: Cautions And Warnings
CAUTIONS AND WARNINGS CHAPTER 1: INTRODUCTION Cautions and warnings Before attempting to install or use this device, it is imperative that all caution and danger indicators in this manual are reviewed to help prevent personal injury, equipment damage, or downtime. The following icons are used to indicate notes, cautions, and dangers. Figure 1: Note icons used in the documentation NOTE CAUTION...
Page 9: Description Of The 350 Feeder Protection System
CHAPTER 1: INTRODUCTION DESCRIPTION OF THE 350 FEEDER PROTECTION SYSTEM Description of the 350 Feeder Protection System Relay functions are controlled by two processors: a Freescale MPC5554 32-bit microprocessor measures all analog signals and digital inputs and controls all output relays;...
Page 10 DESCRIPTION OF THE 350 FEEDER PROTECTION SYSTEM CHAPTER 1: INTRODUCTION Figure 2: Single line diagram BUS VT 59_2 TRIP CLOSE MO ITORI G 50_2 METERI G 50BF 50G/ TRA SIE T RECORDER EVE T RECORDER 350 RELAY LOAD 898742A1.CDR Table 1: Protection functions ANSI Device Description Phase Undervoltage...
Page 11 CHAPTER 1: INTRODUCTION DESCRIPTION OF THE 350 FEEDER PROTECTION SYSTEM Figure 3: Main Menu structure ACTUAL VALUES ACTUAL VALUES QUICK SETUP A1 STATUS SETPOINTS A2 METERING MAINTENANCE A3 RECORDS A4 TARGET MESSAGES QUICK SETUP RELAY STATUS ▼ NOMINAL FREQUENCY PH CT PRIMARY [SENS] GND CT PRIMARY VT SEC.
Page 12: 350 Order Codes
350 ORDER CODES CHAPTER 1: INTRODUCTION 350 order codes The information to specify a 350 relay is provided in the following order code figure. Figure 4: 350 order codes 1–6 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL Courtesy of NationalSwitchgear.com...
Page 13: Specifications
CHAPTER 1: INTRODUCTION SPECIFICATIONS Specifications Specifications are subject to change without notice. NOTE: NOTE Password security PASSWORD SECURITY Master Reset Password: ........8 to 10 alpha-numeric characters Settings Password:..........3 to 10 alpha-numeric characters for local and remote access Control Password:..........3 to 10 alpha-numeric characters for local and remote access Protection PHASE/NEUTRAL/GROUND TIME OVERCURRENT (51P/51N/51G)
Page 14 SPECIFICATIONS CHAPTER 1: INTRODUCTION SENSITIVE GROUND INSTANTANEOUS OVERCURRENT (50SG) Pickup Level (Gnd IOC):........0.005 to 3 x CT in steps of 0.001 x CT Dropout Level:............97 to 99% of Pickup @ I > 0.1 x CT Pickup - 0.002 x CT @ I < 0.1 x CT Time Delay:............
Page 15: Metering
CHAPTER 1: INTRODUCTION SPECIFICATIONS The graph shows the trip time error with respect to the ratio of cable load and thermal model pickup setting. With a smaller I/Ipkp ratio, the time error tends to be higher, as accumulated through the logarithmic formula, the measurement error, and the time of measurement.
Page 16: Data Capture
SPECIFICATIONS CHAPTER 1: INTRODUCTION Data capture TRANSIENT RECORDER Buffer size: ............. 3 s No. of buffers:............1x192, 3x64, 6x32 No. of channels:..........14 Sampling rate:............32 samples per cycle Triggers: ..............Manual Command Contact Input Virtual Input Logic Element Element Pickup/Trip/Dropout/Alarm Data: .................
Page 17: Inputs
CHAPTER 1: INTRODUCTION SPECIFICATIONS BREAKER FAILURE Pickup Level:............0.05 to 20.00 x CT in steps of 0.01 Dropout Level: ............97 to 98% of pickup Time Delay Accuracy: ........0 to 1 cycle (Timer 1, Timer 2) Level Accuracy:............per CT input BREAKER TRIP COUNTER Trip Counter Limit (Pickup):......1 to 10000 in steps of 1 COLD LOAD PICKUP BLOCKING Operation:...............Automatically (current level), or by command (asserted input)
Page 18: Outputs
SPECIFICATIONS CHAPTER 1: INTRODUCTION SENSITIVE GROUND CURRENT INPUT CT Primary: ............1 to 600 A Range:..............0.002 to 3 × CT Input type:.............. 1 A or 5 A (must be specified with order) Nominal frequency: ........... 50/60 Hz Burden: ..............<0.1 VA at rated load Accuracy:..............
Page 19: Power Supply
CHAPTER 1: INTRODUCTION SPECIFICATIONS FORM-C RELAYS Configuration:............5 (five) electromechanical Contact material: ..........silver-alloy Operate time:............<8 ms Continuous current: ...........10 A Make and carry for 0.2s:........30 A per ANSI C37.90 Break (DC inductive, L/R=40 ms):....24 V / 1 A 48 V / 0.5 A 125 V / 0.3 A 250 V / 0.2 A Break (DC resistive):..........24 V / 10 A...
Page 20: Testing And Certification
SPECIFICATIONS CHAPTER 1: INTRODUCTION ETHERNET (FIBER) Fiber type: .............. 100 MB Multi-mode Wavelength:............1300 nm Connector: ............. MTRJ Protocol:..............Modbus TCP, DNP3.0, iec 60870-5-104, IEC 61850 GOOSE Transmit power: ..........-20 dBm Receiver sensitivity: ........... -31 dBm Power budget:............9 dB Maximum input power:........
Page 21: Physical
CHAPTER 1: INTRODUCTION SPECIFICATIONS Damped Magnetic Immunity IEC61000-4-10 Level 4 Voltage Dip & interruption IEC61000-4-11 0, 40, 70, 80% dips, 250/ 300 cycle interrupts Damped Oscillatory IEC61000-4-12 2.5KV CM, 1KV DM Conducted RF Immunity 0-150khz IEC61000-4-16 Level 4 Voltage Ripple IEC61000-4-17 15% ripple Ingress Protection...
Page 22 SPECIFICATIONS CHAPTER 1: INTRODUCTION 1–16 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL Courtesy of NationalSwitchgear.com...
Page 23: Installation
Digital Energy Multilin 350 Feeder Protection System Chapter 2: Installation Installation Mechanical installation This section describes the mechanical installation of the 350 system, including dimensions for mounting and information on module withdrawal and insertion. Dimensions The dimensions of the 350 are shown below. Additional dimensions for mounting and panel cutouts are shown in the following sections.
Page 24: Product Identification
MECHANICAL INSTALLATION CHAPTER 2: INSTALLATION Figure 1: 350 dimensions Product identification The product identification label is located on the side panel of the 350. This label indicates the product model, serial number, firmware revision, and date of manufacture. Figure 2: 350 label 2–2 350 FEEDER PROTECTION SYSTEM –...
Page 25: Mounting
CHAPTER 2: INSTALLATION MECHANICAL INSTALLATION Mounting STANDARD PANEL MOUNT The standard panel mount and cutout dimensions are illustrated below. To avoid the potential for personal injury due to fire hazards, ensure the unit is CAUTION: mounted in a safe location and/or within an appropriate enclosure. CAUTION Figure 3: Panel mounting Figure 4: Mounting tabs (optional)
Page 26 MECHANICAL INSTALLATION CHAPTER 2: INSTALLATION From the rear of the panel screw the case into the panel at the 8 screw positions shown above. If added security is required, bend the retaining "V"tabs outward, to about 90°. These tabs are located on the sides of the case and appear as shown above. The relay can now be inserted and can be panel wired.
Page 27: Unit Withdrawal And Insertion
- MOUNT THE ADAPTER PLATE IN THE CORRECT ORIENTATION 18-8 FILLISTER HEAD PHILLIPS MACHINE SCREW (FRONT SURFACE OUTSIDE) PER THE VIEW. MAKE SURE 8-32 THREAD, 3/8” LENGTH THE MOUNTING SCREWS (GE PART# 1410-0112) DO NOT GE PART#: 1408-0015 PENERTRATE THROUGH THE ADAPTER PLATE FRONT SURFACE. QTY: 8 - MOUNT THE CAPTIVE UNIT WITH THE ADAPTER PLATE.
Page 28 MECHANICAL INSTALLATION CHAPTER 2: INSTALLATION 8 - 32X3/8IN P/HD PHIL BLK GE PART # 1408-0306; (QTY:8) TIGHTENING TORQUE: 15 IN LB THE HANDLE MUST BE ROTATED 90 ⁰ WHILE SLIDING THE 350 DRAW-OUT UNIT INTO THE CAPTIVE UNIT PUSH THE HANDLE DOWN AND TIGHTEN...
Page 29: Electrical Installation
CHAPTER 2: INSTALLATION ELECTRICAL INSTALLATION Electrical installation Figure 7: Typical wiring diagram DIRECTION OF POWER FLOW FOR POSITIVE WATTS A B C POSITIVE DIRECTION OF LAGGING VARs FEEDER Cts BUS Vts FEEDER 1A OR 5A WYE VT ECTIO ECT AUX_VT AS REQUIRED CONTROL POWER...
Page 30: Terminal Identification
ELECTRICAL INSTALLATION CHAPTER 2: INSTALLATION Terminal identification When installing two lugs on one terminal, both lugs should be "right side up" as shown in NOTE: the picture below. This is to ensure the adjacent lower terminal block does not interfere with the lug body.
Page 31 CHAPTER 2: INSTALLATION ELECTRICAL INSTALLATION Figure 10: INCORRECT INSTALLATION METHOD (lower lug reversed) 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 2–9 Courtesy of NationalSwitchgear.com...
Page 32: Phase Sequence And Transformer Polarity
ELECTRICAL INSTALLATION CHAPTER 2: INSTALLATION Figure 11: 350 Terminal Identification IRIG-B + POWER SUPPLY + INPUT 1 IRIG-B - POWER SUPPLY - RS485 + CHASSIS GND RS485 - INPUT 2 TRIP COM RS485 COM CHASSIS GND TRIP N/O INPUT 3 RESERVED TRIP OPTV RESERVED...
Page 33: Current Inputs
CHAPTER 2: INSTALLATION ELECTRICAL INSTALLATION Current inputs The 350 relay has four (4) channels for AC current inputs, each with an isolating transformer. There are no internal ground connections on the current inputs. Current transformers with 1 to 6000 A primaries may be used. Verify that the relay’s nominal input current of 1 A or 5 A matches the secondary rating CAUTION: of the connected CTs.
Page 34: Zero Sequence Ct Installation
ELECTRICAL INSTALLATION CHAPTER 2: INSTALLATION Figure 12: Ground/Sensitive Ground wiring SOURCE SR350 PHASE CURRENT PHASE CURRENT INPUTS GROUND GROUND GROUND GROUND CURRENT INPUT GROUND CURRENT INPUT GROUND CURRENT INPUT GROUND CURRENT INPUT GROUND CURRENT INPUT GROUND CURRENT INPUT USED FOR POLARIZING USED FOR POLARIZING WITH ZERO SEQUENCE CT WITH ZERO SEQUENCE CT...
Page 35: Voltage Inputs
CHAPTER 2: INSTALLATION ELECTRICAL INSTALLATION Voltage inputs The 350 relay has four channels for AC voltage inputs, each with an isolating transformer. Voltage transformers up to a maximum 5000:1 ratio may be used. The nominal secondary voltage must be in the 50 to 240 V range.The three phase inputs are designated as the “bus voltage”.
Page 36: Contact Inputs
ELECTRICAL INSTALLATION CHAPTER 2: INSTALLATION An external switch, circuit breaker, or other protective device must be connected near to NOTE: the equipment. NOTE Figure 15: Control power connection CONTROL P P OWER HEAVY COPPER CONDUCTOR HEAVY COPPER CONDUCTOR OR BRAIDED WIRE OR BRAIDED WIRE SWITCHGEAR GROUND BUS...
Page 37: Trip And Close Output Relays
CHAPTER 2: INSTALLATION ELECTRICAL INSTALLATION Trip and Close output relays The 350 relay is equipped with seven electromechanical output relays: two special relays designed for Breaker trip and close (Relay 1 “Trip”, Relay 2 “Close”), four general purpose relays (Auxiliary Relays 3 to 6), and a Critical Failure relay. The special purpose relays have fixed operating characteristics and the general purpose relays can be configured by the user.
Page 38 ELECTRICAL INSTALLATION CHAPTER 2: INSTALLATION To monitor the close coil circuit integrity, use the relay terminals B4 and A4 to connect the NOTE: Close coil, and provide a jumper between terminals B4 (optional voltage) and B5. NOTE Figure 17: Trip and Close circuits with no voltage monitoring DC + DC + Output Relay 1 (TRIP)
Page 39: Serial Communications
CHAPTER 2: INSTALLATION ELECTRICAL INSTALLATION Serial communications Figure 19: RS485 wiring diagram 350C IED TWISTED PAIR SHIELD Z T (*) RS485 + OPTOCOUPLER OPTOCOUPLER RS485 - DATA DATA SCADA, PLC, OR COMMON PERSONAL COMPUTER GROUND THE SHIELD AT THE SCADA/PLC/COMPUTER ONLY OR THE 350C ONLY RS485 + (*) TERMINATING IMPEDANCE AT EACH END...
Page 40: Irig-B
Figure 20: IRIG-B connection GPS SATELLITE SYSTEM GPS CONNECTION OPTIONAL GE MULTILIN IRIG-B 350 RELAY RG58/59 COAXIAL CABLE TIME CODE GENERATOR IRIG-B(+)
Page 41: Interfaces
Digital Energy Multilin 350 Feeder Protection System Chapter 3: Interfaces Interfaces There are two methods of interfacing with the 350 Feeder Protection System. • Interfacing via the relay keypad and display. • Interfacing via the EnerVista SR3 Setup software. This section provides an overview of the interfacing methods available with the 350 using the relay control panels and EnerVista SR3 Setup software.
Page 42: Description
FRONT CONTROL PANEL INTERFACE CHAPTER 3: INTERFACES Front control panel interface Figure 1: 350 Feeder Protection System Front Panel GE Multilin 350 Feeder Protection System I SERVICE TRIP BREAKER OPE TROUBLE ALARM BREAKER CLOSED SETPOI T PICKUP MAI TE A CE...
Page 43: Display
CHAPTER 3: INTERFACES FRONT CONTROL PANEL INTERFACE Display The 80-character liquid crystal display (LCD) allows visibility under varied lighting conditions. When the keypad and display are not being used, system information is displayed after a user-defined period of inactivity. Pressing the Menu key during the display of default message returns the display to the last message shown before the default message appeared.
Page 44: Led Status Indicators
FRONT CONTROL PANEL INTERFACE CHAPTER 3: INTERFACES When the display shows SETPOINTS, pressing the MESSAGE ► key or the ENTER key will display the page headers of programmable parameters (referred to as setpoints in the manual). When the display shows ACTUAL VALUES, pressing the MESSAGE ► key or the ENTER key displays the page headers of measured parameters (referred to as actual values in the manual).
Page 45: Relay Messages
CHAPTER 3: INTERFACES FRONT CONTROL PANEL INTERFACE This indicator will light ON upon pickup condition generated by any of the relay features. The indicator will turn off if no pickup condition is detected. • BREAKER OPEN: Red/Green – programmable When the breaker is open, this indicator will be on continuously. •...
Page 46: Self-Test Errors
FRONT CONTROL PANEL INTERFACE CHAPTER 3: INTERFACES Example of a Phase IOC1 operation - phase A: Phase IOC1 function: Trip A4 TARGET MESSAGES Ph IOC1 Trip State: Operate ▼ Phase:A Cause The first line contains information of the cause of operation (the name of the operated element), and the element function.
Page 47: Flash Messages
CHAPTER 3: INTERFACES FRONT CONTROL PANEL INTERFACE Table 1: Minor Self-test Errors Self-test Error Latched Description of How Often the Test What to do Message Target Problem is Performed Message? MAINTENANCE A bad IRIG-B input Every 5 seconds* Ensure IRIG-B cable is ALERT: IRIG-B signal has been connected, check cable...
Page 48 FRONT CONTROL PANEL INTERFACE CHAPTER 3: INTERFACES INVALID PASSWORD This flash message appears upon an attempt to enter an incorrect password, as part of password security. AR IN PROGRESS This flash message appears when the Autoreclosure is in progress performing the configured sequence.
Page 49: Software Setup
Although settings can be entered manually using the control panel keys, a PC can be used to download setpoints through the communications port. The EnerVista SR3 Setup software is available from GE Multilin to make this as convenient as possible. With EnerVista SR3 Setup running, it is possible to: •...
Page 50: Hardware And Software Requirements
At least 100 MB of hard disk space is available. • At least 256 MB of RAM is installed. The EnerVista SR3 Setup software can be installed from either the GE EnerVista CD or the GE Multilin website at http://www.GEmultilin.com. Installing the...
Page 51 CHAPTER 3: INTERFACES SOFTWARE SETUP EnerVista Launchpad will obtain the latest installation software from the Web or CD and automatically start the installation process. A status window with a progress bar will be shown during the downloading process. Select the complete path, including the new directory name, where the EnerVista SR3 Setup software will be installed.
Page 52 SOFTWARE SETUP CHAPTER 3: INTERFACES If you are going to communicate from your computer to the 350 Relay using the USB port: 10. Plug the USB cable into the USB port on the 350 Relay then into the USB port on your computer.
Page 53: Connecting Enervista Sr3 Setup To The Relay
(for USB communications) or to the RS485 terminals on the back of the device (for RS485 communications). This example demonstrates an USB connection. For RS485 communications, the GE Multilin F485 converter will be required. Refer to the F485 manual for additional details. To configure the relay for Ethernet communications, see Configuring Ethernet Communications below.
Page 54: Using The Quick Connect Feature
SOFTWARE SETUP CHAPTER 3: INTERFACES Using the Quick The Quick Connect button can be used to establish a fast connection through the front Connect feature panel USB port of a 350 relay, or through the Ethernet port. The following window will appear when the QuickConnect button is pressed: As indicated by the window, the "Quick Connect"...
Page 55: Configuring Ethernet Communications
Install and start the latest version of the EnerVista SR3 Setup Setup software (available NOTE from the GE EnerVista CD). See the previous section for the installation procedure. Click on the Device Setup button to open the Device Setup window and click the Add Site button to define a new site.
Page 56: Connecting To The Relay
SOFTWARE SETUP CHAPTER 3: INTERFACES Enter the IP address, slave address, and Modbus port values assigned to the 350 relay (from the S1 RELAY SETUP > COMMUNICATIONS > ETHERNET menu). Click the Read Order Code button to connect to the 350 and upload the order code. If a communications error occurs, ensure that the Ethernet communication values correspond to the relay setting values.
Page 57: Working With Setpoints And Setpoint Files
CHAPTER 3: INTERFACES SOFTWARE SETUP The "Front Panel" settings window will open with a corresponding status indicator on the lower left of the EnerVista SR3 Setup window. If the status indicator is red, verify that the serial, USB, or Ethernet cable is properly connected to the relay, and that the relay has been properly configured for communications (steps described earlier).
Page 58 SOFTWARE SETUP CHAPTER 3: INTERFACES Clicking the arrow at the end of the box displays a numerical keypad interface that allows the user to enter a value within the setpoint range displayed near the top of the keypad: Click = to exit from the keypad and keep the new value. Click on X to exit from the keypad and retain the old value.
Page 59: File Support
CHAPTER 3: INTERFACES SOFTWARE SETUP File support Opening any EnerVista SR3 Setup file will automatically launch the application or provide focus to the already opened application. If the file is a settings file (has a ‘SR3’ extension) which had been removed from the Settings List tree menu, it will be added back to the Settings List tree.
Page 60: Creating A New Setpoint File
SOFTWARE SETUP CHAPTER 3: INTERFACES In the files pane, right-click on Files and select the Add Existing Setting File item as shown: The Open dialog box will appear, prompting the user to select a previously saved setpoint file. As for any other MS Windows® application, browse for the file to be added then click Open.
Page 61: Upgrading Setpoint Files To A New Revision
CHAPTER 3: INTERFACES SOFTWARE SETUP Select the Firmware Version, and Order Code options for the new setpoint file. For future reference, enter some useful information in the Description box to facilitate the identification of the device and the purpose of the file. To select a file name and path for the new file, click the button beside the File Name box.
Page 62: Printing Setpoints And Actual Values
SOFTWARE SETUP CHAPTER 3: INTERFACES For example, if the firmware revision is L0L01MA140.000 (Firmware Revision 1.40) and the current setpoint file revision is 1.20, change the setpoint file revision to “1.4x”. Enter any special comments about the setpoint file in the "Description" field. Select the desired firmware version from the "New File Version"...
Page 63: Printing Actual Values From A Connected Device
CHAPTER 3: INTERFACES SOFTWARE SETUP The process for Offline > Print Preview Settings File is identical to the steps above. Setpoint lists can be printed in the same manner by right clicking on the desired file (in the file list) or device (in the device list) and selecting the Print Device Information or Print Settings File options.
Page 64: Loading Setpoints From A File
To upgrade the 350 firmware, follow the procedures listed in this section. Upon successful completion of this procedure, the 350 will have new firmware installed with the factory default setpoints.The latest firmware files are available from the GE Multilin website at http:// www.GEmultilin.com.
Page 65 CHAPTER 3: INTERFACES SOFTWARE SETUP The EnerVista SR3 Setup software will request the new firmware file. Locate the folder that contains the firmware files to load into the 350. The firmware filename has the following format: L0 L01 M A 140 . 000 Modification Number (000 = none) Firmware Rev # Board Assembly Rev #...
Page 66 SOFTWARE SETUP CHAPTER 3: INTERFACES After successfully updating the 350 firmware, the relay will not be in service and will require setpoint programming. To communicate with the relay, the communication settings may have to be manually reprogrammed. When communications is established, the saved setpoints must be reloaded back into the relay.
Page 67: Advanced Enervista Sr3 Setup Features
CHAPTER 3: INTERFACES SOFTWARE SETUP Advanced EnerVista SR3 Setup features Flexcurve editor The FlexCurve Editor is designed to allow the user to graphically view and edit the FlexCurve. The Flexcurve Editor screen is shown below: • The Operate Curves are displayed, which can be edited by dragging the tips of the curves •...
Page 68: Transient Recorder (Waveform Capture)
SOFTWARE SETUP CHAPTER 3: INTERFACES • The user can export Configured Trip Times to a CSV file • The user can load Trip Times from a CSV File • The screen above shows the model followed by 350 for viewing Flexcurves. Select Initialize to copy the trip times from the selected curve to the FlexCurve.
Page 69 CHAPTER 3: INTERFACES SOFTWARE SETUP DELTA TRIGGER TIME & DATE CURSOR LINE POSITION VECTOR DISPLAY SELECT Indicates time difference Displays the time and date Click here to open a new graph Indicates the cursor line position between the two cursor of the Trigger.
Page 70 SOFTWARE SETUP CHAPTER 3: INTERFACES Preference Button The following window will appear: Change the color of each graph as desired, and select other options as required, by checking the appropriate boxes. Click OK to store these graph attributes, and to close the window.
Page 71: Protection Summary
CHAPTER 3: INTERFACES SOFTWARE SETUP Protection summary Protection Summary is a single screen which holds the summarized information of different settings from Grouped Elements, Control Elements and Maintenance screens. Protection Summary Screen allows the user to: • view the output relay assignments for the elements •...
Page 72: Password Security
SOFTWARE SETUP CHAPTER 3: INTERFACES Password security Password security is an optional feature of the 350 which can be setup using the SR3 EnerVista Setup software. The password system has been designed to facilitate a hierarchy for centralized management. This is accomplished through a Master level access password which can be used for resetting lower level access passwords and higher level privileged operations.
Page 73 CHAPTER 3: INTERFACES SOFTWARE SETUP 350 devices shipped from the factory are initially set with security disabled. If the password security feature is to be used, the user must first change the Master Reset Password from the initial Null setting, this can only be done over communications, not from the front panel keypad.
Page 74 SOFTWARE SETUP CHAPTER 3: INTERFACES Initial setup of the Local Setpoint and Local Control passwords requires the Master Access level. If Overwrite Local Passwords is set to YES, Local passwords can be changed remotely only (over RS485 or Ethernet). If Overwrite Local Passwords is set to NO, Local passwords can be changed locally only (over USB or keypad).
Page 75: Actual Values
Digital Energy Multilin 350 Feeder Protection System Chapter 4: Actual values Actual values Actual values overview All measured values, the status of digital inputs and outputs, and fault analysis information are accessed in Actual Values mode. Actual value messages are organized into logical groups for easy reference as shown below.
Page 76: A1 Status
ACTUAL VALUES OVERVIEW CHAPTER 4: ACTUAL VALUES Figure 1: Main Actual Values menu ACTUAL VALUES A1 STATUS A1 STATUS A2 METERING CLOCK A3 RECORDS CONTACT INPUTS A4 TARGET MESSAGES OUTPUT RELAYS ▼ LOGIC ELEMENTS VIRTUAL INPUTS C. INPUTS SUMMARY OUT RELAYS SUMMARY LOGIC ELEM SUMMARY A2 METERING CURRENT...
Page 77 CHAPTER 4: ACTUAL VALUES A1 STATUS A1 Status Figure 2: Status menu A1 STATUS CLOCK A1 CLOCK CONTACT INPUTS CURRENT DATE ▼ OUTPUT RELAYS ▼ CURRENT TIME LOGIC ELEMENTS VIRTUAL INPUTS A1 CONTACT INPUTS REMOTE INPUTS CONTACT INPUT 1 REMOTE OUTPUTS ▼...
Page 78: Contact Inputs
A1 STATUS CHAPTER 4: ACTUAL VALUES Contact inputs PATH: ACTUAL VALUES > A1 STATUS > CONTACT INPUTS CI #1 (52a) (Contact Input 1) Range: Off, On The status of this contact shows the breaker close/open state, when wired to a 52a breaker auxiliary contact.
Page 79: Virtual Inputs
CHAPTER 4: ACTUAL VALUES A1 STATUS Virtual inputs The state of all active virtual inputs is displayed here. PATH: ACTUAL VALUES > A1 STATUS > VIRTUAL INPUTS VIRTUAL INPUTS 1 to 32 Range: Off, On Remote inputs The state of all active remote inputs is displayed here. PATH: ACTUAL VALUES >...
Page 80: Logic Elements Summary
A1 STATUS CHAPTER 4: ACTUAL VALUES Output relay #7 is the Critical Failure relay, used to indicate the correct functioning of the NOTE: 350 relay. This output relay shows the status "ON" when the 350 relay is powered up and set to "Ready"...
Page 81: A2 Metering
CHAPTER 4: ACTUAL VALUES A2 METERING A2 Metering The relay measures all RMS currents and voltages, frequency, and all auxiliary analog inputs. Other values like neutral current, symmetrical components, power factor, power (real, reactive, apparent), are derived. All quantities are recalculated every power system cycle and perform protection and monitoring functions.
Page 82: Voltage
A2 METERING CHAPTER 4: ACTUAL VALUES NEG SEQ CURRENT 0.0 A 0 Range: 0.0 to 30000 A, 0 to 359 Voltage AN VOLTAGE 0 V 0 Range: 0 to 65535 V BN VOLTAGE 0 V 0 Range: 0 to 65535 V CN VOLTAGE 0 V 0 Range: 0 to 65535 V...
Page 83: Energy
CHAPTER 4: ACTUAL VALUES A2 METERING Range: -100000.0 to 100000.0 kW 3 ph REACTIVE POWER 0.0 kVAR Range: -100000.0 to 100000.0 kVAR 3 ph APPARENT POWER 0.0 kVA Range: 0 to 3000 kVA POWER FACTOR 0.00 Range: -0.99 to 1.00 Energy POSITIVE WATTHOUR 0.000 MWh...
Page 84: A3 Records
A3 RECORDS CHAPTER 4: ACTUAL VALUES A3 Records The 350 has an event recorder which runs continuously. All event records are stored in memory such that information is maintained for up to 3 days even after losing relay control power. The events are displayed from newest to oldest event. Each event has a header message containing a summary of the event that occurred, and is assigned an event number equal to the number of events that have occured since the recorder was cleared.
Page 85 CHAPTER 4: ACTUAL VALUES A3 RECORDS E778, CONTROL BKR Stat Open 3ph APPARENT POWER 0.0 kVA ▼ E778, CONTROL BKR Stat Open POWER FACTOR 0.00 ▼ E778, CONTROL BKR Stat Open THERM CAP PH A 0.0% ▼ E778, CONTROL BKR Stat Open THERM CAP PH B 0.0% ▼...
Page 86 A3 RECORDS CHAPTER 4: ACTUAL VALUES Code Type Definition Factory Reload Clock Not Set IRIG-B Failure Reset Trip Counter BKR Status Unknown Clear Event Rec Clear Transt Rec Clear Therm Cap Comm. Alert 1 Comm. Alert 2 Comm. Alert 3 Ethernet Link Fail High ENET Traffic Ambient Temp.
Page 87 CHAPTER 4: ACTUAL VALUES A3 RECORDS Code Type Definition 0x0066 Contact IN 7 Off 0x0067 Contact IN 8 Off 0x0068 Contact IN 9 Off 0x0069 Contact IN 10 Off 0x0080 Virtual IN 1 On 0x0081 Virtual IN 2 On 0x0082 Virtual IN 3 On 0x0083 Virtual IN 4 On...
Page 88 A3 RECORDS CHAPTER 4: ACTUAL VALUES Code Type Definition 0x00AB Virtual IN 12 Off 0x00AC Virtual IN 13 Off 0x00AD Virtual IN 14 Off 0x00AE Virtual IN 15 Off 0x00AF Virtual IN 16 Off 0x00B0 Virtual IN 17 Off 0x00B1 Virtual IN 18 Off 0x00B2 Virtual IN 19 Off...
Page 89 CHAPTER 4: ACTUAL VALUES A3 RECORDS Code Type Definition 0x01DA Remote IN 27 On 0x01DB Remote IN 28 On 0x01DC Remote IN 29 On 0x01DD Remote IN 30 On 0x01DE Remote IN 31 On 0x01DF Remote IN 32 On 0x01E0 Remote IN 1 Off 0x01E1 Remote IN 2 Off...
Page 90 A3 RECORDS CHAPTER 4: ACTUAL VALUES Code Type Definition 0x8061 Therm PhC Trip PKP 0x8062 Therm PhC Trip OP 0x8064 Therm PhC Trip DPO 0x84C1 LE 1 Trip PKP 0x84C2 LE 1 Trip OP 0x84C4 LE 1 Trip DPO 0x8501 LE 2 Trip PKP 0x8502 LE 2 Trip OP...
Page 91 CHAPTER 4: ACTUAL VALUES A3 RECORDS Code Type Definition 0x90C2 Ph TOC1 Trip OP 0x90C4 Ph TOC1 Trip DPO 0x90C9 Ph A TOC1 Trip PKP 0x90CA Ph A TOC1 Trip OP 0x90CC Ph A TOC1 Trip DPO 0x90D1 Ph B TOC1 Trip PKP 0x90D2 Ph B TOC1 Trip OP 0x90D4...
Page 92 A3 RECORDS CHAPTER 4: ACTUAL VALUES Code Type Definition 0x9449 Ph A OV1 Trip PKP 0x944A Ph A OV1 Trip OP 0x944C Ph A OV1 Trip DPO 0x9451 Ph B OV1 Trip PKP 0x9452 Ph B OV1 Trip OP 0x9454 Ph B OV1 Trip DPO 0x9461 Ph C OV1 Trip PKP...
Page 93 CHAPTER 4: ACTUAL VALUES A3 RECORDS Code Type Definition 0x96C4 NegSeq IOC Trp DPO 0x9C01 LE 9 Trip PKP 0x9C02 LE 9 Trip OP 0x9C04 LE 9 Trip DPO 0x9C41 LE 10 Trip PKP 0x9C42 LE 10 Trip OP 0x9C44 LE 10 Trip DPO 0x9C81 LE 11 Trip PKP...
Page 94 A3 RECORDS CHAPTER 4: ACTUAL VALUES Code Type Definition 0xA5C1 LE 5 Alarm PKP 0xA5C2 LE 5 Alarm OP 0xA5C4 LE 5 Alarm DPO 0xA601 LE 6 Alarm PKP 0xA602 LE 6 Alarm OP 0xA604 LE 6 Alarm DPO 0xA641 LE 7 Alarm PKP 0xA642 LE 7 Alarm OP...
Page 95 CHAPTER 4: ACTUAL VALUES A3 RECORDS Code Type Definition 0xB0C1 Ph TOC1 Alarm PKP 0xB0C2 Ph TOC1 Alarm OP 0xB0C4 Ph TOC1 Alarm DPO 0xB0C9 Ph A TOC1 Alrm PKP 0xB0CA Ph A TOC1 Alrm OP 0xB0CC Ph A TOC1 Alrm DPO 0xB0D1 Ph B TOC1 Alrm PKP 0xB0D2...
Page 96 A3 RECORDS CHAPTER 4: ACTUAL VALUES Code Type Definition 0xB402 Ntrl OV Alrm OP 0xB404 Ntrl OV Alrm DPO 0xB441 Ph OV1 Alarm PKP 0xB442 Ph OV1 Alarm OP 0xB444 Ph OV1 Alarm DPO 0xB449 Ph A OV1 Alarm PKP 0xB44A Ph A OV1 Alarm OP 0xB44C...
Page 97 CHAPTER 4: ACTUAL VALUES A3 RECORDS Code Type Definition 0xB681 SGnd IOC2 Alrm PKP 0xB682 SGnd IOC2 Alrm OP 0xB684 SGnd IOC2 Alrm DPO 0xB6C1 NSeq IOC Alrm PKP 0xB6C2 NSeq IOC Alrm OP 0xB6C4 NSeq IOC Alrm DPO 0xB889 Ph A OV2 Alarm PKP 0xBC01 LE 9 Alarm PKP...
Page 98 A3 RECORDS CHAPTER 4: ACTUAL VALUES Code Type Definition 0xC541 LE 3 PKP 0xC542 LE 3 OP 0xC544 LE 3 DPO 0xC581 LE 4 PKP 0xC582 LE 4 OP 0xC584 LE 4 DPO 0xC5C1 LE 5 PKP 0xC5C2 LE 5 OP 0xC5C4 LE 5 DPO 0xC601...
Page 99 CHAPTER 4: ACTUAL VALUES A3 RECORDS Code Type Definition 0xD0C1 Ph TOC1 PKP 0xD0C2 Ph TOC1 OP 0xD0C4 Ph TOC1 DPO 0xD101 Ntrl TOC1 PKP 0xD102 Ntrl TOC1 OP 0xD104 Ntrl TOC1 DPO 0xD141 Gnd TOC1 PKP 0xD142 Gnd TOC1 OP 0xD144 Gnd TOC1 DPO 0xD181...
Page 100 A3 RECORDS CHAPTER 4: ACTUAL VALUES Code Type Definition 0xDD04 LE 13 DPO 0xDD41 LE 14 PKP 0xDD42 LE 14 OP 0xDD44 LE 14 DPO 0xDD81 LE 15 PKP 0xDD82 LE 15 OP 0xDD84 LE 15 DPO 0xDDC1 LE 16 PKP 0xDDC2 LE 16 OP 0xDDC4...
Page 101 CHAPTER 4: ACTUAL VALUES A3 RECORDS Code Type Definition 0xF1C4 Ntrl IOC2 Blk DPO 0xF202 Gnd IOC2 Block 0xF204 Gnd IOC2 Block DPO 0xF302 SGnd TOC1 Block 0xF304 SGnd TOC1 BlockDPO 0xF342 Ntrl Dir Block 0xF344 Ntrl Dir Block DPO 0xF382 Gnd Dir Block 0xF384...
Page 102: Transient Records
A3 RECORDS CHAPTER 4: ACTUAL VALUES Transient records PATH: ACTUAL VALUES > A3 RECORDS > TRANSIENT RECORDS FORCE TRIGGER? Range: No, Yes TOTAL RECORDS Range: N/A AVAILABLE RECORDS Range: N/A LAST CLEARED Feb 08 2009 Range: N/A Clear event record PATH: ACTUAL VALUES >...
Page 103: A4 Target Messages
CHAPTER 4: ACTUAL VALUES A4 TARGET MESSAGES A4 Target messages Target messages are automatically displayed for any active condition on the relay such as pickups, trips, alarms, or asserted input. The target messages shown in the table below are displayed as necessary. The relay displays the most recent event first, and after 5 seconds starts rolling up the other target messages, until the Reset command is initiated.
Page 104 A4 TARGET MESSAGES CHAPTER 4: ACTUAL VALUES Code Type Definition 0x91C0 Ntrl IOC2 Trip 0x9200 Gnd IOC2 Trip 0x9240 Ph TOC2 Trip 0x9280 Ntrl TOC2 Trip 0x92C0 Gnd TOC2 Trip 0x9300 SGnd TOC1 Trip 0x93C0 NegSeq OV Trip 0x9400 Ntrl OV Trip 0x9440 Ph OV1 Trip 0x9480...
Page 105 CHAPTER 4: ACTUAL VALUES A4 TARGET MESSAGES Code Type Definition 0xADC0 BKRStatus Fail 0xAE40 CLP Alarm 0xB000 Ph IOC1 Alarm 0xB040 Ntrl IOC1 Alarm 0xB080 Gnd IOC1 Alarm 0xB0C0 Ph TOC1 Alarm 0xB100 Ntrl TOC1 Alrm 0xB140 Gnd TOC1 Alarm 0xB180 Ph IOC2 Alarm 0xB1C0...
Page 106 A4 TARGET MESSAGES CHAPTER 4: ACTUAL VALUES Code Type Definition 0xC4C0 LE 1 0xC500 LE 2 0xC540 LE 3 0xC580 LE 4 0xC5C0 LE 5 0xC600 LE 6 0xC640 LE 7 0xC680 LE 8 0xC880 Setpoint Group2 0xC900 Open Breaker 0xC940 Close Breaker 0xC980...
Page 107 CHAPTER 4: ACTUAL VALUES A4 TARGET MESSAGES Code Type Definition 0xEF80 CLP GndIOC1 BLK 0xEFC0 CLP GndIOC2 BLK 0xF000 Ph IOC1 Block 0xF040 Ntrl IOC1 Block 0xF080 Gnd IOC1 Block 0xF0C0 Ph TOC1 Block 0xF100 Ntrl TOC1 Block 0xF140 Gnd TOC1 Block 0xF180 Ph IOC2 Block 0xF1C0...
Page 108 A4 TARGET MESSAGES CHAPTER 4: ACTUAL VALUES breaker has been detected open, the message “Breaker Open OK” will disappear, and the message “Breaker Close OK” will appear and stay for 5 seconds. • The Contact Input ON/OFF, Virtual Input ON/OFF, and Remote Input ON/OFF messages will not appear as target messages upon change of state.
Page 109 CHAPTER 4: ACTUAL VALUES A4 TARGET MESSAGES When current greater than the IOC1 pickup level is applied, the 350 display shows the following target message: A4 TARGET MESSAGES Ph IOC1 Alarm STATE: PKP After the 200 ms time delay expires, the display shows the following message only: A4 TARGET MESSAGES Ph IOC1 Alarm STATE: OP...
Page 110 A4 TARGET MESSAGES CHAPTER 4: ACTUAL VALUES 4–36 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL Courtesy of NationalSwitchgear.com...
Page 111 Digital Energy Multilin 350 Feeder Protection System Chapter 5: Quick setup - Front control panel Quick setup - Front control panel The “Quick Setup” utility is part of the 350 relay main menu, and can be used for quick and easy programming.
Page 112 CHAPTER 5: QUICK SETUP - FRONT CONTROL PANEL Figure 1: Quick Setup menu ACTUAL VALUES QUICK SETUP QUICK SETUP SETPOINTS RELAY STATUS MAINTENANCE ▼ NOMINAL FREQUENCY PH CT PRIMARY [SENS] GND CT PRIMARY VT SEC. VOLTAGE VT RATIO AUX VT SECONDARY AUX VT RATIO PH TOC FUNCTION PHASE TOC...
Page 113 CHAPTER 5: QUICK SETUP - FRONT CONTROL PANEL QUICK SETUP SETTINGS Quick Setup settings The setpoints below can be programmed under the "Quick Setup" menu. Note that monitoring of Breaker Status via 52a, 52b, or both of these contacts,, should be programmed under SETPOINTS >...
Page 114 QUICK SETUP SETTINGS CHAPTER 5: QUICK SETUP - FRONT CONTROL PANEL GND TOC FUNCTION Range: Disabled, Trip, Latched Alarm, Alarm Default: Disabled ↘ GND TOC PICKUP Range: 0.04 to 20 x CT Default: 1.00 x CT GND TOC CURVE Range: ANSI Extremely/Very/Moderately/Normally Inverse; Definite Time;...
Page 115 CHAPTER 5: QUICK SETUP - FRONT CONTROL PANEL QUICK SETUP SETTINGS PH IOC1 FUNCTION Range: Disabled, Trip, Latched Alarm, Alarm Default: Disabled ↘ PH IOC1 PICKUP Range: 0.05 to 20.00 x CT Default: 1.00 x CT GND IOC1 FUNCTION Range: Disabled, Trip, Latched Alarm, Alarm Default: Disabled ↘...
Page 116 QUICK SETUP SETTINGS CHAPTER 5: QUICK SETUP - FRONT CONTROL PANEL 5–6 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL Courtesy of NationalSwitchgear.com...
Page 117: Setpoints Setpoints Main Menu
Digital Energy Multilin 350 Feeder Protection System Chapter 6: Setpoints Setpoints Setpoints Main Menu The 350 has a considerable number of programmable setpoints, all of which make the relay extremely flexible. These setpoints have been grouped into a variety of pages and subpages as shown below.
Page 118: Setpoint Entry Methods
SETPOINTS MAIN MENU CHAPTER 6: SETPOINTS Figure 1: Main Setpoints menu S3 SETPOINT GROUP 1 SETPOINTS PHASE TOC S1 RELAY SETUP S1 RELAY SETUP PHASE IOC1 S2 SYSTEM SETUP CLOCK PHASE IOC2 S3 PROTECTION PASSWORD SECURITY ▼ ▼ COMMUNICATIONS ▼ [SENS] GROUND TOC S4 CONTROLS [SENS] GROUND IOC1...
Page 119: Common Setpoints
Any of these methods can be used to enter the same information. A computer, however, makes entry much easier. Files can be stored and downloaded for fast, error free entry when a computer is used. To facilitate this process, the GE EnerVista CD with the EnerVista SR3 Setup software is supplied with the relay.
Page 120: Logic Diagrams
SETPOINTS MAIN MENU CHAPTER 6: SETPOINTS • DIRECTION setpoint: The DIRECTION setpoint is available for overcurrent features which are subject to control from a directional element. The range is “Disabled”, “Forward”, and “Reverse”. If set to “Disabled”, the element is allowed to operate for current flow in any direction.
Page 121 CHAPTER 6: SETPOINTS SETPOINTS MAIN MENU • UV: undervoltage • OV: overvoltage • VT: voltage transformer • Ctrl: control • Hr & hr: hour • O/L: overload 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 6–5 Courtesy of NationalSwitchgear.com...
Page 122: S1 Relay Setup
S1 RELAY SETUP CHAPTER 6: SETPOINTS S1 Relay setup Figure 2: Relay Setup menu S1 RELAY SETUP CLOCK S1 CLOCK PASSWORD SECURITY DATE (MM/DD/YYYY) ▼ COMMUNICATIONS ▼ TIME (HH:MM:SS) EVENT RECORDER DLS ENABLE S1 EVENT RECORDER TRANSIENT RECDR DLS START MONTH PICKUP EVENTS FRONT PANEL DLS START WEEK...
Page 123 CHAPTER 6: SETPOINTS S1 RELAY SETUP The following path is available using the keypad. For instructions on how to use the keypad, please refer to Chapter 3 - Working with the Keypad. PATH: SETPOINTS > S1 RELAY SETUP > CLOCK DATE: (MM/DD/YYYY) Range: Month: Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec Day: 1 to 31 Year: 2009 to 2099...
Page 124: Password Security
S1 RELAY SETUP CHAPTER 6: SETPOINTS IRIG-B: Range: Disabled, Enabled Default: Disabled This setting enables the IRIG-B signal for time stamp synchronization. Set the IRIG-B to “Enabled” if the IRIG-B device is connected to the relay IRIG-B terminals. The relay will display the message “IRIG-B failure” in the case of either no IRIG-B signal from the connected IRIG-B device, or when the signal cannot be decoded.
Page 125: Access Passwords
CHAPTER 6: SETPOINTS S1 RELAY SETUP After password entry, the access level is maintained until a period of 5 minutes of inactivity has elapsed, after which the password must be re-entered. A power-loss or entering in the wrong password will log the user out of security. Further definition of the access levels is described as follows: SETPOINT LEVEL •...
Page 126 S1 RELAY SETUP CHAPTER 6: SETPOINTS The following steps describe how to change the Local Setpoints Password from the keypad. Similar steps are followed to change the Local Control Password. ENTER OLD PASSWORD The user is prompted to enter the current Local Setpoints Password. User the value up/ down keys to select characters, and use the message left/right keys to move the cursor.
Page 127: Communications
CHAPTER 6: SETPOINTS S1 RELAY SETUP Communications Figure 4: Main communications menu S1 COMMUNICATIONS RS485 S1 RS485 ETHERNET RS485 BAUD RATE ▼ MODBUS PROTOCOL ▼ RS485 COMM PARITY IEC 60870-5-103 REAR 485 PROTOCOL IEC 60870-5-104* DNP PROTOCOL S1 ETHERNET 61850 PROTOCOL** IP ADDRESS * Available with comms Order Code 1 ▼...
Page 128: Ethernet
S1 RELAY SETUP CHAPTER 6: SETPOINTS Select the Settings > Communications > Serial Ports menu item in the EnerVista SR3 Setup program, or the path on SETPOINTS > S1 RELAY SETUP > COMMUNICATIONS > RS485 the display, to configure the serial port. Figure 5: Serial port configuration settings The following settings are available to configure the RS485 port.
Page 129 CHAPTER 6: SETPOINTS S1 RELAY SETUP device. A subset of the Modbus protocol format is supported that allows extensive monitoring, programming, and control functions using read and write register commands.Refer to the 350 Feeder Protection System Communications Guide for additional details on the Modbus protocol and the Modbus memory map. The Modbus server can simultaneously support two clients over serial RS485.
Page 130 S1 RELAY SETUP CHAPTER 6: SETPOINTS IEC 60870-5-103 serial Figure 7: IEC 60870-5-103 serial communication menu communication S1 60870-5-103 GENERAL S1 103 GENERAL BINARY INPUTS SLAVE ADDRESS ▼ MEASURANDS ▼ SYNCH TIMEOUT COMMANDS S1 103 FIRST ASDU S1 103 B INPUTS ID TYPE ▼...
Page 131 CHAPTER 6: SETPOINTS S1 RELAY SETUP Code Type Definition 0x0049 Contact IN 10 On 0x0060 Contact IN 1 Off 0x0061 Contact IN 2 Off 0x0062 Contact IN 3 Off 0x0063 Contact IN 4 Off 0x0064 Contact IN 5 Off 0x0065 Contact IN 6 Off 0x0066 Contact IN 7 Off...
Page 132 S1 RELAY SETUP CHAPTER 6: SETPOINTS Code Type Definition 0x00A4 Virtual IN 5 Off 0x00A5 Virtual IN 6 Off 0x00A6 Virtual IN 7 Off 0x00A7 Virtual IN 8 Off 0x00A8 Virtual IN 9 Off 0x00A9 Virtual IN 10 Off 0x00AA Virtual IN 11 Off 0x00AB Virtual IN 12 Off...
Page 133 CHAPTER 6: SETPOINTS S1 RELAY SETUP Code Type Definition 0x01D4 Remote IN 21 On 0x01D5 Remote IN 22 On 0x01D6 Remote IN 23 On 0x01D7 Remote IN 24 On 0x01D8 Remote IN 25 On 0x01D9 Remote IN 26 On 0x01DA Remote IN 27 On 0x01DB Remote IN 28 On...
Page 134 S1 RELAY SETUP CHAPTER 6: SETPOINTS Code Type Definition 0x804A Therm PhA Trip OP 0x804C Therm PhA Trip DPO 0x8052 Therm PhB Trip OP 0x8054 Therm PhB Trip DPO 0x8062 Therm PhC Trip OP 0x8064 Therm PhC Trip DPO 0x84C1 LE 1 Trip PKP 0x84C2 LE 1 Trip OP...
Page 135 CHAPTER 6: SETPOINTS S1 RELAY SETUP Code Type Definition 0x9082 Gnd IOC1 Trip OP 0x9084 Gnd IOC1 Trip DPO 0x90C1 Ph TOC1 Trip PKP 0x90C2 Ph TOC1 Trip OP 0x90C4 Ph TOC1 Trip DPO 0x90C9 Ph A TOC1 Trip PKP 0x90CA Ph A TOC1 Trip OP 0x90CC...
Page 136 S1 RELAY SETUP CHAPTER 6: SETPOINTS Code Type Definition 0x9441 Ph OV1 Trip PKP 0x9442 Ph OV1 Trip OP 0x9444 Ph OV1 Trip DPO 0x9449 Ph A OV1 Trip PKP 0x944A Ph A OV1 Trip OP 0x944C Ph A OV1 Trip DPO 0x9451 Ph B OV1 Trip PKP 0x9452...
Page 137 CHAPTER 6: SETPOINTS S1 RELAY SETUP Code Type Definition 0x9684 SGnd IOC2 Trip DPO 0x96C1 NegSeq IOC Trp PKP 0x96C2 NegSeq IOC Trp OP 0x96C4 NegSeq IOC Trp DPO 0x98D2 Ph B UV2 Trip OP 0x9C01 LE 9 Trip PKP 0x9C02 LE 9 Trip OP 0x9C04...
Page 138 S1 RELAY SETUP CHAPTER 6: SETPOINTS Code Type Definition 0xA544 LE 3 Alarm DPO 0xA581 LE 4 Alarm PKP 0xA582 LE 4 Alarm OP 0xA584 LE 4 Alarm DPO 0xA5C1 LE 5 Alarm PKP 0xA5C2 LE 5 Alarm OP 0xA5C4 LE 5 Alarm DPO 0xA601 LE 6 Alarm PKP...
Page 139 CHAPTER 6: SETPOINTS S1 RELAY SETUP Code Type Definition 0xB081 Gnd IOC1 Alarm PKP 0xB082 Gnd IOC1 Alarm OP 0xB084 Gnd IOC1 Alarm DPO 0xB0C1 Ph TOC1 Alarm PKP 0xB0C2 Ph TOC1 Alarm OP 0xB0C4 Ph TOC1 Alarm DPO 0xB0C9 Ph A TOC1 Alrm PKP 0xB0CA Ph A TOC1 Alrm OP...
Page 140 S1 RELAY SETUP CHAPTER 6: SETPOINTS Code Type Definition 0xB3C2 NegSeq OV Alrm OP 0xB3C4 NegSeq OV Alrm DPO 0xB401 Ntrl OV Alrm PKP 0xB402 Ntrl OV Alrm OP 0xB404 Ntrl OV Alrm DPO 0xB441 Ph OV1 Alarm PKP 0xB442 Ph OV1 Alarm OP 0xB444 Ph OV1 Alarm DPO...
Page 141 CHAPTER 6: SETPOINTS S1 RELAY SETUP Code Type Definition 0xB641 SGnd IOC1 Alrm PKP 0xB642 SGnd IOC1 Alrm OP 0xB644 SGnd IOC1 Alrm DPO 0xB681 SGnd IOC2 Alrm PKP 0xB682 SGnd IOC2 Alrm OP 0xB684 SGnd IOC2 Alrm DPO 0xB6C1 NSeq IOC Alrm PKP 0xB6C2 NSeq IOC Alrm OP...
Page 142 S1 RELAY SETUP CHAPTER 6: SETPOINTS Code Type Definition 0xC541 LE 3 PKP 0xC542 LE 3 OP 0xC544 LE 3 DPO 0xC581 LE 4 PKP 0xC582 LE 4 OP 0xC584 LE 4 DPO 0xC5C1 LE 5 PKP 0xC5C2 LE 5 OP 0xC5C4 LE 5 DPO 0xC601...
Page 143 CHAPTER 6: SETPOINTS S1 RELAY SETUP Code Type Definition 0xD344 Ntrl Dir Rev DPO 0xD382 Gnd Dir Rev OP 0xD384 Gnd Dir Rev DPO 0xDC01 LE 9 PKP 0xDC02 LE 9 OP 0xDC04 LE 9 DPO 0xDC41 LE 10 PKP 0xDC42 LE 10 OP 0xDC44...
Page 144 S1 RELAY SETUP CHAPTER 6: SETPOINTS Code Type Definition 0xF202 Gnd IOC2 Block 0xF302 SGnd TOC1 Block 0xF342 Ntrl Dir Block 0xF382 Gnd Dir Block 0xF3C2 NegSeq OV Block 0xF402 Ntrl OV Block 0xF442 Ph OV1 Block 0xF482 Ph UV1 Block 0xF4C2 Aux OV Block 0xF502...
Page 145 CHAPTER 6: SETPOINTS S1 RELAY SETUP IEC60870-5-104 Figure 8: IEC 60870-5-104 protocol menu protocol S1 60870-5-104 GENERAL S1 104 GENERAL CLIENT ADDRESS FUNCTION ▼ POINT LIST TCP PORT SLAVE ADDRESS CYCLIC DATA PERIOD 104 BINARY INPUTS TCP CONN. TIMEOUT POINT 0 ▼...
Page 146: Dnp Communication
S1 RELAY SETUP CHAPTER 6: SETPOINTS DNP communication Figure 9: DNP communication menu S1 DNP DNP GENERAL S1 DNP GENERAL DNP UNSOL RESPONSE* DNP ADDRESS ▼ DEFAULT VARIATION ▼ DNP TCP/UDP PORT DNP CLIENT ADDRESS* CHANNEL 1 PORT DNP POINTS LIST CHANNEL 2 PORT TME SYNC IIN PER.
Page 147 CHAPTER 6: SETPOINTS S1 RELAY SETUP Code Type Definition FC134B unsigned 16 bits DNP Binary Inputs 0x0040 Contact IN 1 On 0x0041 Contact IN 2 On 0x0042 Contact IN 3 On 0x0043 Contact IN 4 On 0x0044 Contact IN 5 On 0x0045 Contact IN 6 On 0x0046...
Page 148 S1 RELAY SETUP CHAPTER 6: SETPOINTS Code Type Definition 0x0098 Virtual IN 25 On 0x0099 Virtual IN 26 On 0x009A Virtual IN 27 On 0x009B Virtual IN 28 On 0x009C Virtual IN 29 On 0x009D Virtual IN 30 On 0x009E Virtual IN 31 On 0x009F Virtual IN 32 On...
Page 149 CHAPTER 6: SETPOINTS S1 RELAY SETUP Code Type Definition 0x01C8 Remote IN 9 On 0x01C9 Remote IN 10 On 0x01CA Remote IN 11 On 0x01CB Remote IN 12 On 0x01CC Remote IN 13 On 0x01CD Remote IN 14 On 0x01CE Remote IN 15 On 0x01CF Remote IN 16 On...
Page 150 S1 RELAY SETUP CHAPTER 6: SETPOINTS Code Type Definition 0x01F7 Remote IN 24 Off 0x01F8 Remote IN 25 Off 0x01F9 Remote IN 26 Off 0x01FA Remote IN 27 Off 0x01FB Remote IN 28 Off 0x01FC Remote IN 29 Off 0x01FD Remote IN 30 Off 0x01FE Remote IN 31 Off...
Page 151 CHAPTER 6: SETPOINTS S1 RELAY SETUP Code Type Definition 0x900A Ph A IOC1 Trip OP 0x900C Ph A IOC1 Trip DPO 0x9011 Ph B IOC1 Trip PKP 0x9012 Ph B IOC1 Trip OP 0x9014 Ph B IOC1 Trip DPO 0x9021 Ph C IOC1 Trip PKP 0x9022 Ph C IOC1 Trip OP...
Page 152 S1 RELAY SETUP CHAPTER 6: SETPOINTS Code Type Definition 0x9201 Gnd IOC2 Trip PKP 0x9202 Gnd IOC2 Trip OP 0x9204 Gnd IOC2 Trip DPO 0x9301 SGnd TOC1 Trip PKP 0x9302 SGnd TOC1 Trip OP 0x9304 SGnd TOC1 Trip DPO 0x93C1 NegSeq OV Trp PKP 0x93C2 NegSeq OV Trp OP...
Page 153 CHAPTER 6: SETPOINTS S1 RELAY SETUP Code Type Definition 0x9584 UndrFreq2 Trip DPO 0x95C1 OverFreq1 Trip PKP 0x95C2 OverFreq1 Trip OP 0x95C4 OverFreq1 Trip DPO 0x9601 OverFreq2 Trip PKP 0x9602 OverFreq2 Trip OP 0x9604 OverFreq2 Trip DPO 0x9641 SGnd IOC1 Trip PKP 0x9642 SGnd IOC1 Trip OP 0x9644...
Page 154 S1 RELAY SETUP CHAPTER 6: SETPOINTS Code Type Definition 0xA054 Therm PhB Alrm DPO 0xA062 Therm PhC Alrm OP 0xA064 Therm PhC Alrm DPO 0xA482 Relay Not Ready 0xA4C1 LE 1 Alarm PKP 0xA4C2 LE 1 Alarm OP 0xA4C4 LE 1 Alarm DPO 0xA501 LE 2 Alarm PKP 0xA502...
Page 155 CHAPTER 6: SETPOINTS S1 RELAY SETUP Code Type Definition 0xB009 Ph A IOC1 Alrm PKP 0xB00A Ph A IOC1 Alrm OP 0xB00C Ph A IOC1 Alrm DPO 0xB011 Ph B IOC1 Alrm PKP 0xB012 Ph B IOC1 Alrm OP 0xB014 Ph B IOC1 Alrm DPO 0xB021 Ph C IOC1 Alrm PKP...
Page 156 S1 RELAY SETUP CHAPTER 6: SETPOINTS Code Type Definition 0xB1C4 Ntrl IOC2 Alrm DPO 0xB201 Gnd IOC2 Alarm PKP 0xB202 Gnd IOC2 Alarm OP 0xB204 Gnd IOC2 Alarm DPO 0xB301 SGnd TOC1 Alrm PKP 0xB302 SGnd TOC1 Alrm OP 0xB304 SGnd TOC1 Alrm DPO 0xB342 NtrlDir RevAlm OP...
Page 157 CHAPTER 6: SETPOINTS S1 RELAY SETUP Code Type Definition 0xB541 UndrFreq1 Alrm PKP 0xB542 UndrFreq1 Alrm OP 0xB544 UndrFreq1 Alrm DPO 0xB581 UndrFreq2 Alrm PKP 0xB582 UndrFreq2 Alrm OP 0xB584 UndrFreq2 Alrm DPO 0xB5C1 OverFreq1 Alrm PKP 0xB5C2 OverFreq1 Alrm OP 0xB5C4 OverFreq1 Alrm DPO 0xB601...
Page 158 S1 RELAY SETUP CHAPTER 6: SETPOINTS Code Type Definition 0xC0C2 Output Relay 5 On 0xC102 Output Relay 6 On 0xC142 Self-Test Rly 7 On 0xC182 Output Relay 1 On 0xC1C2 Output Relay 2 On 0xC202 BKR Connected 0xC4C1 LE 1 PKP 0xC4C2 LE 1 OP 0xC4C4...
Page 159 CHAPTER 6: SETPOINTS S1 RELAY SETUP Code Type Definition 0xCBC4 AR Disabled DPO 0xCC02 AR Ext. Init 0xCC41 AR Ready PKP 0xCC42 AR Ready 0xCC44 AR Ready DPO 0xCCC2 BKR Stat Open 0xCD02 BKR Stat Clsd 0xCD42 Setpoint Group1 On 0xCE41 CLP PKP 0xCE42...
Page 160: Iec 61850 Goose Communications
S1 RELAY SETUP CHAPTER 6: SETPOINTS Code Type Definition 0xEF02 CLPNtrlIOC1 BLK 0xEF42 CLPNtrlIOC2 BLK 0xEF82 CLP GndIOC1 BLK 0xEFC2 CLP GndIOC2 BLK 0xF002 Ph IOC1 Block 0xF042 Ntrl IOC1 Block 0xF082 Gnd IOC1 Block 0xF0C2 Ph TOC1 Block 0xF102 Ntrl TOC1 Block 0xF142 Gnd TOC1 Block...
Page 161: Event Recorder
CHAPTER 6: SETPOINTS S1 RELAY SETUP GOOSE settings changes will take effect only after the 350 relay is re-booted. One setting is available to Enable/Disable both Transmission and Reception. It is possible to change this setting from the Front Panel of the relay. Figure 10: EnerVista SR3 GOOSE General Settings Event recorder The Event Recorder runs continuously, capturing and storing the last 256 events.
Page 162: Transient Recorder
S1 RELAY SETUP CHAPTER 6: SETPOINTS ALARM EVENTS Range: Disabled, Enabled Default: Enabled These events include the elements programmed as an “ALARM” or “LATCHED ALARM” function, which detect power system conditions considered as an alarm. CONTROL EVENTS Range: Disabled, Enabled Default: Enabled If set to “Enabled”, the event recorder records events caused by the performance of the programmed control elements.
Page 163: Front Panel
CHAPTER 6: SETPOINTS S1 RELAY SETUP TRIGGER MODE Range: Overwrite, Protected Default: Overwrite When the “Overwrite” setting is selected, the new records overwrite the old ones, meaning the relay will always keep the newest records. In “Protected” mode, the relay will keep the number of records corresponding to the selected number, only without overwriting.
Page 164: Installation
S1 RELAY SETUP CHAPTER 6: SETPOINTS FLASH MESSAGE TIME Range: 1 s to 65535 s Default: 5 s Flash messages are status, warning, error, or information messages displayed for several seconds in response to certain key presses during setting programming. These messages override any normal messages.
Page 165: S2 System Setup
CHAPTER 6: SETPOINTS S2 SYSTEM SETUP S2 System Setup Figure 11: Main system setup menu S2 SYSTEM SETUP CURRENT SENSING S2 CURRENT SENSING VOLTAGE SENSING PHASE CT PRIMARY ▼ POWER SYSTEM ▼ [SENS] GROUND CT PRIMARY BREAKER USER CURVE S2 VOLTAGE SENSING FLEXCURVE A VT CONNECTION FLEXCURVE B...
Page 166: Voltage Sensing
S2 SYSTEM SETUP CHAPTER 6: SETPOINTS GROUND [SENS GND] CT PRIMARY Range: [1 A to 600 A] 1 A to 6000 A Default: 50 A For the above configuration, the ground CT primary rating must be entered. To detect low level ground fault currents, the sensitive ground input may be used. In this case, the sensitive ground CT primary rating must be entered.
Page 167: Power System
CHAPTER 6: SETPOINTS S2 SYSTEM SETUP AUX VT RATIO Range: 1:1 to 5000:1 Default: 1:1 This setting defines the VT primary to secondary turns ratio. For a 14400: 120 VT, the entry would be “120:1” (14400/120 = 120). The 350 relay can be applied to both metering and protection feeders with up to 65 kV NOTE: phase-to-phase voltage.
Page 168: User Curve
S2 SYSTEM SETUP CHAPTER 6: SETPOINTS The breaker status when disconnected from the main power circuit, such by drawout breaker racking mechanism, or isolated by the associated disconnect switches on a fixed circuit breaker, is provided by monitoring the contact input setting for “BKR CONNECTED”.The logic for Breaker Open, and Breaker Close status is shown in the table below: Table 1: Breaker open / Breaker closed status logic...
Page 169: S3 Protection
CHAPTER 6: SETPOINTS S3 PROTECTION S3 Protection The 350 protection elements are organized in two identical setpoint groups: Setpoint Group 1 and Setpoint Group 2. Each Setpoint Group has the same protection functions, depending on the relay order code. These protection functions include: •...
Page 170 S3 PROTECTION CHAPTER 6: SETPOINTS Figure 12: Main protection menu S3 SETPOINT GROUP 1 SETPOINTS PHASE TOC S1 RELAY SETUP S1 RELAY SETUP PHASE IOC1 S2 SYSTEM SETUP CLOCK PHASE IOC2 S3 PROTECTION PASSWORD SECURITY ▼ ▼ COMMUNICATIONS ▼ [SENS] GROUND TOC S4 CONTROLS [SENS] GROUND IOC1 S5 INPUTS/OUTPUTS...
Page 171: Current Elements
CHAPTER 6: SETPOINTS S3 PROTECTION Current elements Figure 13: Current elements menu S3 SETPOINT GROUP 1 PHASE TOC S3 PHASE TOC PHASE IOC1 PH TOC FUNCTION ▼ PHASE IOC2 ▼ PH TOC PKP GROUND TOC S3 GROUND TOC PH TOC CURVE GROUND IOC1 GND TOC FUNCTION PH TOC TDM...
Page 172: Toc Curves
I / Ipu > 1. Select the appropriate curve shape and multiplier, thus matching the appropriate curve with the protection requirements. The available curves are shown in the table below. ANSI GE TYPE IAC OTHER Extremely Inverse Extremely Inverse...
Page 173 CHAPTER 6: SETPOINTS S3 PROTECTION where: T = reset time in seconds; E = energy capacity reached (per unit); M = curve RESET multiplier; CR = characteristic constant (5 for ANSI, IAC, Definite Time, and FlexCurves™; 8 for IEC) TOC CURVE CHARACTERISTICS ANSI Curves The ANSI time overcurrent curve shapes conform to industry standards and the ANSI C37.90 curve classifications for extremely, very, normally, and moderately inverse.
Page 174 S3 PROTECTION CHAPTER 6: SETPOINTS Multiplier (TDM) Current (I/Ipickup) 10.0 ANSI Moderately Inverse 0.675 0.379 0.239 0.191 0.166 0.151 0.141 0.133 0.128 0.123 1.351 0.757 0.478 0.382 0.332 0.302 0.281 0.267 0.255 0.247 2.702 1.515 0.955 0.764 0.665 0.604 0.563 0.533 0.511 0.493...
Page 175 The curves for the General Electric type IAC relay family are derived from the formulae: where: T = trip time (seconds), M = multiplier setpoint, I = input current, I = pickup current setpoint, A to E = constants. Table 7: GE Type IAC Inverse Curve Constants IAC Curve Shape IAC Extreme Inverse 0.0040 0.6379...
Page 176 S3 PROTECTION CHAPTER 6: SETPOINTS Multiplier (TDM) 10.0 23.209 10.497 4.299 2.747 2.131 1.813 1.620 1.490 1.395 1.323 10.0 29.012 13.121 5.374 3.434 2.663 2.266 2.025 1.862 1.744 1.654 IAC Inverse 0.578 0.375 0.266 0.221 0.196 0.180 0.168 0.160 0.154 0.148 1.155 0.749...
Page 177 CHAPTER 6: SETPOINTS S3 PROTECTION Figure 14: USER curve configuration settings Flexcurves Prospective FlexCurves™ can be configured from a selection of standard curves to provide the best approximate fit, then specific data points can be edited afterwards. Click the Initialize button to populate the pickup values with the points from the curve specified by the "Select Curve"...
Page 178 S3 PROTECTION CHAPTER 6: SETPOINTS Figure 15: Flexcurve™ configuration settings The following settings are available for each custom Flexcurve™. Select Curve Range: ANSI Moderately Inverse, ANSI Very Inverse, ANSI Extremely Inverse, IEEE Normally Inverse, IEC Curve A, IEC Curve B, IEC Curve C, IEC Short Inverse, IAC Extreme Inv, IAC Very Inverse, IAC Inverse, IAC Short Inverse, User Curve, FlexCurve B (Note: For FlexCurve A, you can select FlexCurve B as the setpoint, and vice versa for FlexCurve B.) Default: Extremely Inverse...
Page 179: Phase Timed Overcurrent Protection
CHAPTER 6: SETPOINTS S3 PROTECTION 1.03 × Pickup, ..., 20.00 × Pickup Range: 0 to 65535 ms in steps of 1 Default: 0 ms These settings specify the time to operate at the following pickup levels 1.03 to 20.00. This data is converted into a continuous curve by linear interpolation between data points.
Page 180 S3 PROTECTION CHAPTER 6: SETPOINTS PH TOC CURVE Range: ANSI Extremely/Very/Moderately/Normally Inverse, Definite Time, IEC Curve A/B/C and Short Inverse, IAC Extremely/Very/Inverse/Short, User Curve, FlexCurve A, FlexCurve B Default: Extremely Inverse This setting sets the shape of the selected TOC inverse curve. If none of the standard curve shapes is appropriate, a custom User curve, or FlexCurve can be created.
Page 181 CHAPTER 6: SETPOINTS S3 PROTECTION Figure 16: Phase Time Overcurrent Protection Logic Diagram 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 6–65 Courtesy of NationalSwitchgear.com...
Page 182: Phase Instantaneous Overcurrent Protection
S3 PROTECTION CHAPTER 6: SETPOINTS Phase instantaneous The 350 relay has two identical phase instantaneous overcurrent protection types per overcurrent Setpoint Group: Phase IOC1, and Phase IOC2. Each consists of three separate instantaneous overcurrent elements; one per phase, with identical settings. protection The following path is available using the keypad.
Page 183 CHAPTER 6: SETPOINTS S3 PROTECTION Figure 17: Phase instantaneous overcurrent protection logic diagram 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 6–67 Courtesy of NationalSwitchgear.com...
Page 184: Ground/Sensitive Ground Timed Overcurrent Protection
S3 PROTECTION CHAPTER 6: SETPOINTS Ground/Sensitive The relay has one Ground Time Overcurrent protection per setpoint group. The settings of Ground timed this function are applied to the ground input current to produce trip or pickup flags. The Ground TOC pickup flag is asserted, when the ground current is above the PKP value. The overcurrent Ground TOC operate flag is asserted if the element stays picked up for the time defined by protection...
Page 185 CHAPTER 6: SETPOINTS S3 PROTECTION GND TOC TDM Range: 0.50 to 20.00 in steps of 0.01 Default: 1.0 This setting provides selection for Time Dial Multiplier by which the times from the inverse curve are modified. For example if an ANSI Extremely Inverse curve is selected with TDM = 2, and the fault current was 5 times bigger than the PKP level, the operation of the element will not occur before an elapsed time from pickup, of 495 ms.
Page 186 S3 PROTECTION CHAPTER 6: SETPOINTS Figure 18: Ground/Sensitive Ground timed overcurrent protection: Logic Diagram 6–70 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL Courtesy of NationalSwitchgear.com...
Page 187 CHAPTER 6: SETPOINTS S3 PROTECTION Ground/Sensitive The relay has one Ground/Sensitive Ground Instantaneous Overcurrent protection element Ground instantaneous per setpoint group. The settings of these functions are applied to the gound/sensitive ground current for pickup and trip flags. The Ground IOC pickup flag is asserted, when the overcurrent ground current is above the PKP value.
Page 188 S3 PROTECTION CHAPTER 6: SETPOINTS Figure 19: Ground/Sensitive Ground instantaneous overcurrent protection logic diagram 6–72 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL Courtesy of NationalSwitchgear.com...
Page 189: Ground Directional
CHAPTER 6: SETPOINTS S3 PROTECTION Ground directional The Ground Directional element is used to discriminate whether a fault occurs in a forward or in a reverse direction, and it can be used either individually or as a part of the Ground Time, or Instantaneous over-current elements.
Page 190 S3 PROTECTION CHAPTER 6: SETPOINTS Figure 20: Open Delta VT connection The fault is detected in the Forward direction when the direction of the operating current Ig is within ± 90° of the polarizing signal. Otherwise the direction is detected as Reverse. In the case where the voltage drops below the setting of the minimum polarizing voltage, the ground directional element defaults to the Forward direction.
Page 191 CHAPTER 6: SETPOINTS S3 PROTECTION The following path is available using the keypad. For instructions on how to use the keypad, please refer to Chapter 3 - Working with the Keypad. PATH: SETPOINTS > S3 PROTECTION > S3 SETPOINT GROUP 1(2) > NTRL DIR GND (S.GND) DIR FUNCTION Range: Disabled, Latched Alarm, Alarm, Control Default: Disabled...
Page 192 S3 PROTECTION CHAPTER 6: SETPOINTS MIN POL VOLTAGE Range: 0.05 to 1.25 x VT in steps of 0.01 Default: 0.05 x VT The minimum zero sequence voltage level must be selected to prevent operation due to normal system unbalances, or voltage transformer errors. Set the minimum zero sequence voltage level to 2% of VT for well balanced systems, and 1% of VT accuracy.
Page 193 CHAPTER 6: SETPOINTS S3 PROTECTION Figure 21: Ground directional logic diagram 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 6–77 Courtesy of NationalSwitchgear.com...
Page 194: Neutral Timed Overcurrent Protection
S3 PROTECTION CHAPTER 6: SETPOINTS Neutral timed The relay has one Neutral Time Overcurrent protection element per setpoint group. The overcurrent settings of this function are applied to the calculated neutral current to produce pickup and trip flags. The Neutral TOC pickup flag is asserted, when the neutral current is above protection the PKP value.
Page 195 CHAPTER 6: SETPOINTS S3 PROTECTION NTRL TOC RESET Range: Instantaneous, Linear Default: Instantaneous The “Instantaneous” reset method is intended for applications with other relays, such as most static relays, which set the energy capacity directly to zero when the current falls below the reset threshold.
Page 196 S3 PROTECTION CHAPTER 6: SETPOINTS Figure 22: Neutral Timed Overcurrent Protection: Logic Diagram 6–80 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL Courtesy of NationalSwitchgear.com...
Page 197: Neutral Instantaneous Overcurrent Protection
CHAPTER 6: SETPOINTS S3 PROTECTION Neutral The relay has two Instantaneous Overcurrent protection elements per setpoint group. The instantaneous settings of this function are applied to the calculated neutral current for pickup and trip flags. The Neutral IOC pickup flag is asserted, when the neutral current is above the PKP overcurrent value.
Page 198 S3 PROTECTION CHAPTER 6: SETPOINTS BLOCK 1/2/3 Range: Off, Contact Input 1 to 10[8], Virtual Input 1 to 32, Remote Input 1 to 32, Logic Element 1 to 16 Default: Off Three blocking inputs are provided in the Neutral IOC menu. One blocking input going “high”...
Page 199 CHAPTER 6: SETPOINTS S3 PROTECTION Figure 23: Neutral Instantaneous Overcurrent Protection: Logic Diagram 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 6–83 Courtesy of NationalSwitchgear.com...
Page 200: Neutral Directional
S3 PROTECTION CHAPTER 6: SETPOINTS Neutral directional The Neutral Directional element is used to discriminate between faults that occur in the forward direction, and faults that occur in the reverse direction. The Neutral Directional element can be used either individually for control or alarm by energizing the auxiliary output relays, or as a part of the Neutral Time, or Instantaneous, over-current elements to define the tripping direction.
Page 201 CHAPTER 6: SETPOINTS S3 PROTECTION When “Dual” polarizing is selected, the Reverse direction is declared if both directional comparators - the one based on the zero sequence polarizing voltage, and the other based on measured ground polarizing current - declare Reverse direction. If the direction from one of the comparators declares Forward direction and the other declares Reverse direction, the element will declare Forward direction.
Page 202 S3 PROTECTION CHAPTER 6: SETPOINTS NTRL DIR FUNCTION Range: Disabled, Latched Alarm, Alarm, Control Default: Disabled When an Alarm function is selected, the alarm LED will flash upon detection of Reverse direction, and will drop out when the direction changes to Forward. When Latched Alarm is selected, the alarm LED will flash upon detection of Reverse direction, and will stay lit (latched) after the direction changes to Forward.
Page 203 CHAPTER 6: SETPOINTS S3 PROTECTION Figure 25: Neutral directional logic diagram 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 6–87 Courtesy of NationalSwitchgear.com...
Page 204: Negative Sequence Instantaneous Overcurrent Protection
S3 PROTECTION CHAPTER 6: SETPOINTS Negative sequence The 350 relay has one Negative Sequence Overcurrent element per protection group. The instantaneous negative sequence over-current protection responds to negative sequence current, where it is calculated as . overcurrent protection The negative sequence over-current elements are uniquely suited to detect phase-phase faults and are not sensitive to balanced loads.
Page 205 CHAPTER 6: SETPOINTS S3 PROTECTION Figure 26: Negative sequence instantaneous overcurrent protection logic diagram 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 6–89 Courtesy of NationalSwitchgear.com...
Page 206: Voltage Elements
S3 PROTECTION CHAPTER 6: SETPOINTS Voltage elements Figure 27: Voltage elements menu S3 SETPOINT GROUP 1 S3 PHASE UV PHASE TOC PH UV FUNCTION PHASE IOC1 ▼ PHASE IOC2 PH UV ▼ PH UV CURVE GROUND S3 PHASE OV PH UV DELAY GROUND IOC1 PH OV FUNCTION...
Page 207 CHAPTER 6: SETPOINTS S3 PROTECTION to either cause a trip or generate an alarm when the voltage drops below a specified voltage setting for a specified time delay. • Permissive Functions: The undervoltage feature may be used to block the functioning of external devices by operating an output relay, when the voltage falls below the specified voltage setting.
Page 208 S3 PROTECTION CHAPTER 6: SETPOINTS the Latched Alarm or Alarm setting is selected. Any or all of the output relays 3 to 6 can be selected to operate when the phase UV function is selected as Latched Alarm, Alarm, or Trip. PH UV PKP Range: 0.00 to 1.25 x VT in steps of 0.01 Default: 0.75 x VT...
Page 209 CHAPTER 6: SETPOINTS S3 PROTECTION Figure 29: Phase undervoltage logic diagram 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 6–93 Courtesy of NationalSwitchgear.com...
Page 210: Phase Overvoltage
S3 PROTECTION CHAPTER 6: SETPOINTS Phase overvoltage The phase OV protection can be used to protect voltage sensitive feeder loads and circuits against sustained overvoltage conditions. The protection can be used to either cause a trip, or generate an alarm when the voltage exceeds a specified voltage value for the specified time delay.
Page 211 CHAPTER 6: SETPOINTS S3 PROTECTION Figure 30: Phase Overvoltage logic diagram 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 6–95 Courtesy of NationalSwitchgear.com...
Page 212: Neutral Overvoltage
S3 PROTECTION CHAPTER 6: SETPOINTS Neutral overvoltage The relay has one Neutral Overvoltage element per protection group. This element requires the three phase Bus VTs to be Wye connected. When setting the pickup for this element, it is important to consider the error in the VT ratio, as well as the normal voltage unbalance on the system.
Page 213 CHAPTER 6: SETPOINTS S3 PROTECTION Figure 31: Neutral Overvoltage logic diagram 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 6–97 Courtesy of NationalSwitchgear.com...
Page 214 S3 PROTECTION CHAPTER 6: SETPOINTS Negative sequence The relay has one Negative Sequence Overvoltage element per protection group. The overvoltage negative sequence overvoltage may be used to detect the loss of one or two phases of the source, a reversed voltage phase sequence , or non-system voltage conditions. The following path is available using the keypad.
Page 215 CHAPTER 6: SETPOINTS S3 PROTECTION Figure 32: Negative Sequence Overvoltage logic diagram 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 6–99 Courtesy of NationalSwitchgear.com...
Page 216: Auxiliary Undervoltage
S3 PROTECTION CHAPTER 6: SETPOINTS Auxiliary The relay has one Auxiliary Undervoltage element per setpoint group. The input for this undervoltage element is the voltage from the auxiliary VT relay terminals, where a single voltage from the line is connected. The time delay characteristic can be programmed as either definite time or inverse time.
Page 217 CHAPTER 6: SETPOINTS S3 PROTECTION AUX UV FUNCTION Range: Disabled, Alarm, Latched Alarm, Trip Default: Disabled The selection of the Latched Alarm, Alarm, or Trip setting enables the Auxiliary UV function. The output relay #1 “Trip” will operate if the function is selected as a Trip, and the auxiliary voltage is below the AUX UV PKP setting for a time greater than the selected AUX UV DELAY time.
Page 218 S3 PROTECTION CHAPTER 6: SETPOINTS Figure 34: Auxiliary Undervoltage logic diagram 6–102 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL Courtesy of NationalSwitchgear.com...
Page 219: Auxiliary Overvoltage
CHAPTER 6: SETPOINTS S3 PROTECTION Auxiliary overvoltage The relay has one Auxiliary Overvoltage element per protection group. The element is intended for monitoring overvoltage conditions of the auxiliary voltage input. A typical application for this element is monitoring the zero sequence voltage (3V_0) from an open corner Delta VT connection.
Page 220 S3 PROTECTION CHAPTER 6: SETPOINTS Figure 35: Auxiliary Overvoltage logic diagram 6–104 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL Courtesy of NationalSwitchgear.com...
Page 221: Underfrequency
CHAPTER 6: SETPOINTS S3 PROTECTION Underfrequency The relay is equipped with two Underfrequency elements per setpoint group. These elements can be used for detecting system underfrequency conditions, and be part of an automatic load shedding scheme. The need for such protection arises if during a system disturbance, an area becomes electrically isolated from the main system and suffers a generation deficiency due to the loss of either transmission or generation facilities.
Page 222 S3 PROTECTION CHAPTER 6: SETPOINTS BLOCK 1/2/3 Range: Off, Contact Input 1 to 10[8], Virtual Input 1 to 32, Remote Input 1 to 32, Logic Element 1 to 16 Default: Off Three blocking inputs are provided in the menu for each of the two Underfrequency elelements.
Page 223 CHAPTER 6: SETPOINTS S3 PROTECTION Figure 36: Underfrequency logic diagram 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 6–107 Courtesy of NationalSwitchgear.com...
Page 224: Overfrequency
S3 PROTECTION CHAPTER 6: SETPOINTS Overfrequency The relay is equipped with two Overfrequency elements per setpoint group, ANSI device number 81O-1, and 81O-2. Voltage channel phase A is used for frequency measurement. The steady-state frequency of a power system is an indicator of the existing balance between generated power and the load.
Page 225 CHAPTER 6: SETPOINTS S3 PROTECTION Figure 37: Overfrequency logic diagram 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 6–109 Courtesy of NationalSwitchgear.com...
Page 226: Cable Thermal Model
S3 PROTECTION CHAPTER 6: SETPOINTS Cable Thermal Model The thermal overload protection (Thermal Model) can be applied to prevent damage to the protected cables, dry transformers, capacitor banks, or even overhead lines. Loads exceeding the load ratings of the protected equipment can, over time, degrade the insulation, and may, in return, lead to short circuit conditions.
Page 227 CHAPTER 6: SETPOINTS S3 PROTECTION THERMAL MDL FUNC Range: Disabled, Latched Alarm, Alarm, Trip Default: Disabled The thermal capacity will be displayed on the relay even if the Thermal Model Function is set to “Disabled. The output relay #1 “Trip” will operate only if the function is selected as a Trip and the thermal capacity value of any phase is over 100%.
Page 228 S3 PROTECTION CHAPTER 6: SETPOINTS BLOCK 1/2/3 Range: Off, Contact Input 1 to 10[8], Virtual Input 1 to 32, Remote Input 1 to 32, Logic Element 1 to 16 Default: Off Three blocking inputs are provided in the menu. One blocking input “high” is enough to block the function.
Page 229 CHAPTER 6: SETPOINTS S3 PROTECTION Figure 38: Thermal model protection logic diagram 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 6–113 Courtesy of NationalSwitchgear.com...
Page 230: S4 Controls
S4 CONTROLS CHAPTER 6: SETPOINTS S4 Controls Figure 39: Main controls menu S4 CONTROLS S4 CHANGE SETP GROUP CHANGE SEPNT GROUP SET GROUP 2 ACTIVE VIRTUAL INPUTS ▼ LOGIC ELEMENTS ▼ BLK GROUP CHANGE BREAKER CONTROL COLD LOAD PICKUP S4 VIRTUAL INPUTS BREAKER FAIL VIRTUAL INPUT 1 ▼...
Page 231: Change Setpoint Group
CHAPTER 6: SETPOINTS S4 CONTROLS Change setpoint group The 350 relay has two identical setpoint groups- Group 1 and Group 2 for all protection elements. Switching between these two groups is available automatically by assigning an input (contact, virtual, remote, logic element), or via communications. Group 1 is the default setpoint group.
Page 232 S4 CONTROLS CHAPTER 6: SETPOINTS Figure 40: Switching setpoint groups - Logic diagram 6–116 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL Courtesy of NationalSwitchgear.com...
Page 233: Virtual Inputs
CHAPTER 6: SETPOINTS S4 CONTROLS Virtual inputs There are 32 virtual inputs that can be individually programmed to respond to input commands entered via the relay keypad, or by using communication protocols. PATH: SETPOINTS > S4 CONTROLS > VIRTUAL INPUTS VIRTUAL INPUT 1 Range: Off, On Default: Off...
Page 234: Logic Elements
S4 CONTROLS CHAPTER 6: SETPOINTS Figure 41: Virtual inputs scheme logic Logic elements The 350 relay has 16 Logic Elements available to build simple logic using the state of any programmed contact, virtual, or remote input, or from the output operand of a protection, or control element.
Page 235 CHAPTER 6: SETPOINTS S4 CONTROLS Referring to the Logic Element logic diagram below, the Logic Element can be set to one of four functions: Control, Alarm, Latched Alarm, or Trip. When Alarm or Latched Alarm is selected, the output relay #1 (Trip) is not triggered during Logic Element operation. The Trip output relay will be triggered when Trip is selected as the function, and the Logic Element operates.
Page 236 S4 CONTROLS CHAPTER 6: SETPOINTS OUTPUT RELAYS 3 to 6 Range: Do not operate, Operate Default: Do not operate Any or all of output relays 3 to 6 can be selected to operate upon a Logic Element operating condition. The selection of auxiliary relay outputs is available no matter whether the Control, Alarm, Latched Alarm, or Trip function is selected.
Page 237 CHAPTER 6: SETPOINTS S4 CONTROLS Figure 42: Logic Element logic diagram 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 6–121 Courtesy of NationalSwitchgear.com...
Page 238 S4 CONTROLS CHAPTER 6: SETPOINTS Table 11: List of logic inputs Input Type Input Name Contact Inputs BKR 52a input (CI1) BKR 52b input (CI2) Contact Input 3 Contact Input 4 Contact Input 5 Contact Input 6 Contact Input 7 Contact Input 8 Virtual Inputs Virtual Input 1...
Page 239 CHAPTER 6: SETPOINTS S4 CONTROLS Input Type Input Name Virtual Input 28 Virtual Input 29 Virtual Input 30 Virtual Input 31 Virtual Input 32 Remote Inputs Remote Input 1 Remote Input 2 Remote Input 3 Remote Input 4 Remote Input 5 Remote Input 6 Remote Input 7 Remote Input 8...
Page 240: Breaker Control
S4 CONTROLS CHAPTER 6: SETPOINTS Breaker control The Breaker Control menu is designed to trip and close the breaker from the relay either remotely (LOCAL MODE setting set to "OFF," or the selected contact input deselected) or locally (the input from the LOCAL MODE setpoint asserted). While in LOCAL MODE, the REMOTE OPEN and CLOSE setpoints are not active.
Page 241: Cold Load Pickup
CHAPTER 6: SETPOINTS S4 CONTROLS Local Mode is set if the input for the LOCAL MODE setpoint is asserted. In this mode, the REMOTE OPEN and REMOTE CLOSE setpoints are deactivated, regardless of the status of their selected inputs. Breaker Open and Breaker Close commands from the KEYPAD BKR OPEN and KEYPAD BKR CLOSE setpoints will be active, if the breaker operation is set to Local Mode (i.e.
Page 242 S4 CONTROLS CHAPTER 6: SETPOINTS CLP BLK FUNCTION Range: Disabled, Alarm, Latched Alarm Default: Disabled If set to Alarm, the alarm LED will flash upon detection of Cold Load Pickup condition, and will turn off upon clearing the condition. If Latched Alarm setting is selected, the alarm LED will flash during the Cold Load Pickup condition, and will remain ON, when the condition is cleared.
Page 243 CHAPTER 6: SETPOINTS S4 CONTROLS Figure 44: Cold load pickup logic diagram 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 6–127 Courtesy of NationalSwitchgear.com...
Page 244: Breaker Failure
S4 CONTROLS CHAPTER 6: SETPOINTS Breaker failure The Breaker Failure function monitors the phase currents, after a trip command from the protection elements is initiated. If any phase current is above the set current level after the BF DELAY time expires, a breaker failure will be declared, and will operate the selected output relays.
Page 245 CHAPTER 6: SETPOINTS S4 CONTROLS Figure 45: Breaker failure logic diagram 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 6–129 Courtesy of NationalSwitchgear.com...
Page 246: Autorecloser
S4 CONTROLS CHAPTER 6: SETPOINTS Autorecloser The automatic recloser is intended for use on single three-pole tripping breaker applications. Up to four reclosing “shots” can be programmed with independent set of protection elements for initiation, and individual dead time prior to each subsequent shot. A typical example for selection of individual set of overcurrent protection elements for initiation is the selection of instantaneous overcurrent protections for the first AR initiation, and selection of time overcurrent protections after the first reclose.
Page 247 CHAPTER 6: SETPOINTS S4 CONTROLS BLOCK AR Range: Off, Contact Input 1 to 10[8], Virtual Input1 to 32, Remote Input1 to 32, Logic Elements1 to 16 Default: Off This setting provides selection for contact input, virtual input, remote input, or logic element to block off the AR scheme.
Page 248 S4 CONTROLS CHAPTER 6: SETPOINTS AR N/READY - RELAY 3 to 6 Range: Do not operate, Operate Default: Do Not Operate Any or all of the output relays can be selected to operate upon Autoreclose Status detected as “AR LOCKOUT”. SELECT SETP GROUP Range: Active group, SP Group 1 Active, SP Group 2 Active Default: SP Group 1 Active...
Page 249 CHAPTER 6: SETPOINTS S4 CONTROLS Figure 46: Autoreclose logic diagram 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 6–133 Courtesy of NationalSwitchgear.com...
Page 250 S4 CONTROLS CHAPTER 6: SETPOINTS The Automatic Reclosure function is designed to perform up to four breaker autoreclosings, with a configurable dead time before each reclosing shot. Upon AR function enabled, and breaker status “closed”, the AR is set into “AR Ready” state. If an intermittent feeder fault occurs such as overhead conductor touching tree branch, one or more of the overcurrent protection elements enabled under AR initiate menu will operate and issue a breaker trip command.
Page 251: S5 Inputs/Outputs
CHAPTER 6: SETPOINTS S5 INPUTS/OUTPUTS S5 Inputs/Outputs Figure 47: Main inputs/outputs menu S5 INPUTS/OUTPUTS CONTACT INPUTS S5 CONTACT INPUTS OUTPUT RELAYS SELECT DC VOLTAGE ▼ VIRTUAL INPUTS S5 CONTACT INPUT 1 CONTACT INPUT 1 DEBOUNCE TIME CONTACT INPUT 2 CONTACT INPUT 3 S5 CONTACT INPUT 10[8] CONTACT INPUT 10[8] DEBOUNCE TIME...
Page 252: Output Relays
S5 INPUTS/OUTPUTS CHAPTER 6: SETPOINTS SELECT DC VOLTAGE Range: 17 V, 33 V, 84 V, 166 V Default: 84 V 52a BKR INPUT 1 Range: Select alpha-numeric name Default: 52a (CI#1) 52b BKR INPUT 2 Range: Select alpha-numeric name Default: 52b (CI#2) CONTACT INPUT X [3 to 10] Range: Select alpha-numeric name Default: Input X...
Page 253: Output Relay 1 "Trip
CHAPTER 6: SETPOINTS S5 INPUTS/OUTPUTS 52a Contact 52b Contact Relay Operation Configured Configured Trip Relay remains operational until 52b indicates an open breaker. Close Relay remains operational until 52a indicates a closed breaker. Trip Relay remains operational until 52a indicates an open breaker.
Page 254 S5 INPUTS/OUTPUTS CHAPTER 6: SETPOINTS Figure 48: Relay 1 "TRIP" logic diagram 6–138 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL Courtesy of NationalSwitchgear.com...
Page 255 CHAPTER 6: SETPOINTS S5 INPUTS/OUTPUTS Output Relay 2 PATH: SETPOINTS > S5 INPUTS/OUTPUTS > OUTPUT RELAYS > RELAY 2 CLOSE "Close" SEAL IN TIME Range: 0.00 to 9.99 s in steps of 0.01 Default: 0.04 s This setting defines the time to be added to the reset time of the Relay 2 Close output, thus extending its pulse width.
Page 256 S5 INPUTS/OUTPUTS CHAPTER 6: SETPOINTS Figure 49: Relay 2 "CLOSE" logic diagram 6–140 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL Courtesy of NationalSwitchgear.com...
Page 257: Auxiliary Output Relays 3 To 6
CHAPTER 6: SETPOINTS S5 INPUTS/OUTPUTS Auxiliary Output The 350 relay is equipped with four auxiliary output relays numbered from 3 to 6. All these Relays 3 to 6 relays are available for selection for operation of protection, control, or maintenance features.
Page 258: Critical Failure Relay #7
S5 INPUTS/OUTPUTS CHAPTER 6: SETPOINTS Critical Failure Relay The 350 relay is also equipped with one output relay (# 7 - “Critical Failure Relay”) for fail- safe indication. There are no user-programmable setpoints associated with this output relay. The logic for this relay is shown below. The Critical Failure Relay (Output Relay 7) is a form C contact (refer to the Typical Wiring Diagram) with one NO and one NC contacts (no control power).
Page 259: Virtual Inputs
CHAPTER 6: SETPOINTS S5 INPUTS/OUTPUTS Figure 51: Output relay 7: Critical Failure Relay Virtual inputs There are 32 virtual inputs that can be individually programmed to respond to input commands entered via the relay keypad, or by using communication protocols. The following path is available using the keypad.
Page 260 S5 INPUTS/OUTPUTS CHAPTER 6: SETPOINTS PATH: SETPOINTS > S5 INPUTS/OUTPUTS > VIRTUAL INPUTS VI x FUNCTION Range: Disabled/Enabled Default: Disabled The Virtual Input is enabled and ready to be triggered when set to Enabled. All virtual inputs will appear under the menu.
Page 261: Remote Inputs
CHAPTER 6: SETPOINTS S5 INPUTS/OUTPUTS Figure 52: Virtual inputs scheme logic Remote inputs Remote Inputs are available for programming under the EnerVista SR3 Setup software. 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 6–145 Courtesy of NationalSwitchgear.com...
Page 262 S5 INPUTS/OUTPUTS CHAPTER 6: SETPOINTS 6–146 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL Courtesy of NationalSwitchgear.com...
Page 263: Maintenance
Digital Energy Multilin 350 Feeder Protection System Chapter 7: Maintenance Maintenance Information about the relay and the breaker can be obtained through the features included in the Maintenance page. 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 7–1 Courtesy of NationalSwitchgear.com...
Page 264 CHAPTER 7: MAINTENANCE Figure 1: Main maintenance menu MAINTENANCE M3 TRIP COIL M1 RELAY INFO M1 RELAY INFO TRIP COIL FUNCTION RELAY NAME M3 BKR MAINTENANCE ▼ ▼ M4 BKR MONITOR TRIP COIL DELAY ▼ ORDER CODE BYPASS BKR STATUS MAIN FIRMWARE REV M5 RELAY MAINTENANCE OUTPUT RELAY 3...
Page 265 CHAPTER 7: MAINTENANCE M1 RELAY INFORMATION M1 Relay information PATH: MAINTENANCE > M1 RELAY INFO RELAY NAME Range: alpha-numeric name of up to 18 characters Default: Feeder Name ORDER CODE 350-CP5G5HSMCPZEDN This screen shows the relay Order Code. FIRMWARE REVISION 1.10 This screen shows the relay Firmware Revision.
Page 266: M3 Breaker Maintenance
M3 BREAKER MAINTENANCE CHAPTER 7: MAINTENANCE M3 Breaker maintenance Trip coil The Trip coil monitoring is performed by a built-in voltage monitor on the Form A output relay: #1 Trip. The voltage monitor is connected across the Form A contact, and effectively the relay detects healthy current through the circuit.
Page 267 CHAPTER 7: MAINTENANCE M3 BREAKER MAINTENANCE Figure 3: Trip circuit with continuous monitoring DC + Trip - form A contacts External jumper By-pass 52a contact resistor Trip Coil 898787.cdr DC - The following path is available using the keypad. For instructions on how to use the keypad, please refer to Chapter 3 - Working with the Keypad.
Page 268: Close Coil
M3 BREAKER MAINTENANCE CHAPTER 7: MAINTENANCE Figure 4: Trip coil monitoring logic diagram Close coil Close coil monitoring is performed by a built-in voltage monitor on the Form A output relay: #2 Close. The voltage monitor is connected across the Form A contact, and effectively the relay detects healthy current through the circuit.
Page 269 CHAPTER 7: MAINTENANCE M3 BREAKER MAINTENANCE As long as the current through the Voltage Monitor is above the threshold of the trickle currents (see Technical Specification for Form A output relays), the circuit integrity for the Close coil is effectively normal. If the Close coil circuit gets disconnected, or if in general a high resistance is detected in the circuitry, a Close Coil alarm will be set and the “ALARM”...
Page 270 M3 BREAKER MAINTENANCE CHAPTER 7: MAINTENANCE PATH: MAINTENANCE > M3 BKR MAINTENANCE CLOSE COIL FUNCTION Range: Disabled, Alarm, Latched Alarm Default: Disabled Selecting Alarm, or Latched Alarm, enables the Close Coil Monitor monitoring function. The “ALARM” and “MAINTENANCE” LEDs will light up upon detection of a close coil circuitry problem.
Page 271: Breaker Trip Counter
CHAPTER 7: MAINTENANCE M3 BREAKER MAINTENANCE Figure 7: Close coil monitoring logic diagram Breaker trip counter When the total number of breaker trips detected reaches the TRIP COUNTER LIMIT setpoint, an output will occur. The following path is available using the keypad. For instructions on how to use the keypad, please refer to Chapter 3 - Working with the Keypad.
Page 272 M3 BREAKER MAINTENANCE CHAPTER 7: MAINTENANCE TRIP COUNT FUNCTN Range: Disabled, Alarm, Latched Alarm Default: Disabled The selection of the Latched Alarm, or Alarm setting enables the BKR Trip Counter function. The “ALARM” LED will turn on when the Total breaker trips reaches the TRIP COUNTER LIMIT setting.
Page 273 CHAPTER 7: MAINTENANCE M3 BREAKER MAINTENANCE Figure 8: BKR trip counter logic diagram 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 7–11 Courtesy of NationalSwitchgear.com...
Page 274: M4 Breaker Monitor
M4 BREAKER MONITOR CHAPTER 7: MAINTENANCE M4 Breaker monitor The status of the breaker trip and close coils, as well as the trip and close circuits, can be monitored under MAINTENANCE > M4 BKR MONITOR. In the case where a breaker coil or circuit fails, the relay will display the message "Unhealthy"...
Page 275: M5 Relay Maintenance
CHAPTER 7: MAINTENANCE M5 RELAY MAINTENANCE M5 Relay maintenance Ambient temperature The SR3 has a temperature monitor feature that measures the ambient temperature around the chassis of the relay. The relay extrapolates the ambient temperature from an internal temperature sensor inside the product. This feature can be used to signal the customer that the product is being subjected to temperatures that can degrade the product life and proper action should be initiated.
Page 276 M5 RELAY MAINTENANCE CHAPTER 7: MAINTENANCE OUTPUT RELAY 3 to 6 Range: Do Not Operate, Operate Default: Do Not Operate Any assignable output relay can be selected to operate upon Ambient Temperature Alarm operation. 7–14 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL Courtesy of NationalSwitchgear.com...
Page 277 CHAPTER 7: MAINTENANCE M5 RELAY MAINTENANCE Figure 9: Ambient Temperature Alarm logic diagram 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 7–15 Courtesy of NationalSwitchgear.com...
Page 278 M5 RELAY MAINTENANCE CHAPTER 7: MAINTENANCE 7–16 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL Courtesy of NationalSwitchgear.com...
Page 279: Appendix
Digital Energy Multilin 350 Feeder Protection System Appendix Change notes Manual Revision history Table 1: Revision History MANUAL P/N RELEASE DATE 1601-9086-A1 12 May 2009 1601-9086-A2 4 June 2009 1601-9086-A3 4 June 2009 1601-9086-A4 30 June 2009 1601-9086-A5 30 June 2009 1601-9086-A6 6 December 2010 1601-9086-A8...
Page 280 CHANGE NOTES APPENDIX Table 3: Major Updates for 350-A6 Page Number CHANGES Chapter 1 Add Protection Elements 67G and 67N to Protection Functions Chapter 1 Add Comm option 3E to Order Code Table Chapter 7 Add Ambient Temp section (Ch 7 - Maintenance) General Increase number of Logic Elements to 16 General...

GE Multilin 350 Series Instruction Manual

1 Introduction

Overview

2 Installation

3 Interfaces

4 Actual Values

6 SETPOINTS Setpoints Main Menu

7 Maintenance

Appendix

Change Notes

Quick Links

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Summary of Contents for GE Multilin 350 Series

Table of Contents