Table of Contents
GEH-62730
MicroVersaTrip Plus™ and
MicroVersaTrip PM™ Trip Units
for Type AKR Low- Voltage Power Circuit Breakers
Power Break® Insulated-Case Circuit Breakers
II
Power Break®
Insulated-Case Circuit Breakers
R-Frame Molded-Case Circuit Breakers
Low-Voltage Power Circuit Breaker Conversion Kits
User's Guide
Table of Contents
Related Manuals for GE MicroVersaTrip Plus Series
Summary of Contents for GE MicroVersaTrip Plus Series
- Page 1 GEH-62730 MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units for Type AKR Low- Voltage Power Circuit Breakers Power Break® Insulated-Case Circuit Breakers Power Break® Insulated-Case Circuit Breakers R-Frame Molded-Case Circuit Breakers Low-Voltage Power Circuit Breaker Conversion Kits User's Guide...
- Page 2 Features may be described herein that are not present in all hardware and software systems. GE &...
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Page 3: Table Of Contents
Table of Contents Chapter 1. Introduction 1-1 Read This First......................... 1 -2 Product Structure ......................1-3 Trip Unit Functions ......................1-4 Trip Unit Catalog Numbers .................... . 1-5 Rating Plugs ........ - Page 4 Table of Contents Power Direction Setup .................... . 21 Power-Reversal Relay Delay ..................22 Rating Plug Current Setting ..................22 Potential Transformer Primary Voltage .......
- Page 5 Table of Contents Chapter 5. Maintenance and Trouble-Shooting 5- 1 Trip Unit Removal and Replacement ................Power Break Insulated-Case Circuit Breakers ............Power Break II Insulated-Case Circuit Breakers ............ Type AKR Low-Voltage Power Circuit Breakers ...
- Page 7 List of Figures Trip Unit display for potential transformer primary voltage set point........41. Trip Unit display for potential transformer connection choice ..........42. Trip Unit display for power demand interval..........
- Page 8 List of Tables 1. Breaker type referred to by first character of Trip Unit catalog number........ 2. Breaker frame size maximum CT referred to by second character of Trip Unit catalog number..........................3.
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Page 9: 1-1 Read This First
Introduction 1-1 Read This First The MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units described in this publication are used on Power Break® and Power Break® II insulated-case circuit breakers, Type low-voltage power circuit breakers, R-Frame molded-case circuit breakers, and low-voltage power circuit breaker conversion kits. - Page 10 Introduction Removal of a Trip Unit from its breaker CAUTION: must be performed with the breaker in the OPEN or TRIPPED position . Draw-out breakers should be CAIJTION racked out first. 1M:P0fti ANT INSTRUCTIONS TO ENSOR! N'IOPE'R Pf'lOO I'l AMMEI'l F\JNCT10N Pour retirer declencheur ,...
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Page 11: 1-3 Trip Unit Functions
Introduction 1-3 Trip Unit Functions - Frequency (Hz) Protective relaying • MicroVersaTrip Plus and MicroVersaTrip PM Trip - Undervoltage Units have specific standard and optional functions. - Overvoltage All Trip Units share a series of interchangeable - Voltage unbalance rating plugs. The standard functions for both types of Trip Unit are as follows: - Current unbalance - Power reversal... -
Page 12: Installed Breaker Ct Size Referred To By Third And Fourth Characters Of Trip Unit Catalog
Introduction Maximum Suff"IX Protective Function Character Allowable CT Short-time overcurrent protection 2000 A Instantaneous overcurrent protection 2500/3000/3200 A Fixed high-range instantaneous 4000 A (AKR- Fixed high-range instantaneous 5000 A 30S only) Ground fault Table Breaker frame size maximum CT mferred to by second Defeatable ground fault (not UL character of Trip Unit catalog number. -
Page 13: 1-5 Rating Plugs
Introduction the same sensor rating. Rating plugs for Power - ground-fault zone-selective interlock Break, Power Break II, and Type AKR breakers PM - MicroVersaTrip PM with metering, relaying, cannot be interchanged with Spectra RMS™ and communication MicroVersaTrip Plus and MicroVersaTrip PM Trip Units. -
Page 14: 1-6 Equipment Interfaces
Introduction 1-6 Equipment Interfaces RMS9C-type MicroVersaTrip PM Trip Units require a connection to an auxiliary switch within the breaker that senses the breaker position . This Micro Versa Trip Plus Trip Units connection is not required for RMS9D-type MicroVersaTrip Plus Trip Units do not usually MicroVersaTrip PM Trip Units used on Power require connections within the equipment, since all Break®... -
Page 15: Power Requirements
Introduction Power Requirements TRIP UNIT DESIGNED FOR USE WITH GE Ci rcuit Breaker POWER BREAK II S/N:156075432 small amount of power is necessary to energize the erial Number liquid crystal display (LCD) during setup, for viewing breaker status, and for m e tering displays . -
Page 16: Battery Function
Introduction half-hour of use for first-time cold setup, Trip memory, so sub sequent loss of power does not result Unit status checks per year on a de-energized in loss or change of any settings. breaker, and one or two configuration changes per year. -
Page 17: Liquid Crystal Display
Introduction Liquid Crystal Display Full-Scale Value Accuracy Resolution Figure 7 illustrates the LCD with all segments illumi Current (A, kA) ± 0.5 digit ±2% nated. The various segments are energized in Voltage (V) ± 0.5 digit ± 1 .5% response to conditions sensed by the Trip Unit. Energy (kWh, MWh, GWh) -
Page 21: Chapter 2. Setup Mode
Setting Choices Min.. M..ali. . 1 50-2000 . 20 2500-3200 . 3 7 4000 . 20 All in steps of 0 . 0 1 G round Fault Pickup Setting Choices Additional OFF setting Ground "X" or "GD" options. Fault Delay 12T in Ground... -
Page 22
Setting Choices 1 to 1 5 sec, OFF increments of 1 sec Current- Unbalance Delay
Page 24: Long-Time Pickup
Long-Time Pickup in Table 1 1 . Figure illustrates the effect of this delay on trip time. Press the key to cycle VAL U E The first setup-mode display is always the long-time through the four choices of time-delay bands. Press pickup setpoint, as illustrated in Figure 1 0 .Page 26: Instantaneous Pickup
On Trip Units with the user-selectable switchable Instantaneous Pickup instantaneous overcurrent and ground-fault option, Instantaneous overcurrent protection, with Trip Unit X, an additional value of appears at the end of display illustrated in Figure 19, causes an immediate the listing of numerical values. Choose this setting to breaker trip when the chosen current level is disable instantaneous protection.Page 27: Ground-Fault Delay
Band Time Delay, sec Disabled Ground-Fault 0.10 Pickup Settings 0.21 0.35 Table Lower-limit delays for ground-fault delay bands. Current Delay Set Points Figure Time-current curve for ground-fault pickup. Ground-Fault Delay This function sets the delay before the breaker trips when the ground-fault pickup current has been detected.Page 28: Voltage-Unbalance Relay Delay
' ., SETUP current-unbalance protection. The Trip Unit display f Lf is shown in Figure 29. ' ., SETUP f.Lf PI C KUP Figure Trip Unit display for voltage-unbalance relay pickup. DELAY Figure Trip Unit display for current-unbalance relay delay. Voltage-Unbalance Relay Delay This function sets the delay time before a voltage...Page 29: Undervoltage Relay Delay
SETUP overvoltage protection. The Trip Unit display is shown in Figure 35. ' ., SETUP I.LI V< PICKUP Figure Trip Unit display for undervoltage relay zero-volt trip V> enabled. DELAY Undervoltage Relay Delay Figure Trip Unit display for overvoltage relay delay. This function sets the delay time before an under...Page 30: Power-Reversal Relay Delay
Power-Reversal Relay Delay Breaker Frame This function sets the delay time before a power Size Rating Plug Options , Amps reversal trip occurs. The range of delays is 1 to 1 5 60, 80, 1 00, 1 25, 1 50, 200, 225, 250, 300, seconds, i n steps o f 1 second.Page 31: Power Demand Intervals
SETUP Incorrect storage of this set point will CA. uri ON: C = • C t ..result in incorrect metering values. ADDRESS Si une valeur incorrecte est enregistree AITENI'ION: pour ce reglage, les mesures seront fausses. VOLTS SETUP Figure Trip Unit display for setting communication address.Page 33: Setting The Accessory Configuration Switches
• • • • • • • • • • • • • • • Figure Setting the accessory configuration switches.Page 34: Chapter 3. Metering Mode
3- 1 Overview MicroVersaTrip PM Trip Units (with PM and M suffixes in their catalog numbers) have the full The metering mode displays parameter values for complement of metering displays. that part of the electrical system controlled by the The Trip Unit must be provided with control power breaker's MicroVersaTrip Plus or MicroVersaTrip to display metered values.- Page 35 Micro Versa Trip® Plus and MicroVersaTrip® PM Trip Units METER Energy METER Total Real Power Total METER Apparent Power MW rvETER Power Demand DEMAND Peak MWMETER Units display (kW or MW) flashes Power for peak power demand. Demand DEMAND Frequency Back to Current Display Figure Trip Unit metering mode function flow (continued).
Page 36: Current
Current Energy The initial metering display is phase 1 line current, This display, illustrated in Figure 5 1 , shows the as illustrated in Figure 48. Press to cycle VAL U E aggregate energy flow through the breaker. The among the three phases. Current is displayed from 0 value is displayed from 0 to 999 kWh, then automati...Page 37: Total Aggregate Power
ent demand, hold down the key and press the Total Apparent Power VALU E key. SELECT The value displayed for total apparent power, as illustrated in Figure represents the aggregate Frequency total apparent power in volt-amperes flowing through all three phases. The value is displayed from This display, illustrated in Figure shows the fre...Page 38: Chapter 4. Status Mode
Status Mode 4- 1 Overview long-time, short-time, adjustable-instantaneous, and ground-fault. The corresponding counter is incre Trip Unit Status mode is selected by pressing the mented after any of these trips. A maximum of 256 key until appears on the display. FU N CTI O N STATUS trips can be counted for each type of fault, after...Page 40: Ground-Fault Display
Status Mode Shunt Trip and Undervoltage Release Trip Ground-Fault Display Displays (RMS9D Series Trip Units Only) When a ground-fault trip occurs, the display illus trated in Figure 62 appears. The fault current is dis When a Power Break ®II breaker trips due to the played in units of the breaker CT sensor rating.Page 41: Clearing The Trip Operations Counters
Status Mode STATUS Figure Trip Unit status display for long-time overcurrent trip counter. Clearing the Trip Operations Counters Since the trip operations counters are stored in non volatile memory, the Trip Unit maintains the infor mation indefinitely. To clear a particular counter, first display the corresponding count, then hold down the key and press the...Page 42: Trip Unit Removal And Replacement
Maintenance and Trouble-Shooting Rating plugs and MicroVersaTrip Plus and Micro W ARNING: Before beginning this procedure, turn VersaTrip PM Trip Units are factory tested and nor the breaker OFF, disconnect it from all voltage mally shipped installed in their breaker frame sources, and discharge the closing springs, if they are assemblies or part of a conversion kit.- Page 44 Maintenance and Trouble-Shooting Symptom Possible Cause Corrective Action 1. The Trip Unit display Line current is below 20% At least 20% of the current sensor rating, xCT, is blank. of the breaker sensor rating must be flowing through the breaker to activate (MicroVersaTrip Plus) .
Page 45: Catalog Numbers For Rms9C Units In Ak/ Akr Circuit Breakers
Catalog Numbers for RMS9C Trip Units in AKR Circuit Breakers The following table contains the catalog number options for AKR circuit breakers, with an illustration of a valid number and the options that each part of the number refers to. Code Description Function G �...Page 46: Catalog Numbers For Rms9C Units In Power Break® Circuit Breakers
Catalog Numbers for RMS9C Trip Units in Power Break® Circuit Breakers The following table contains the catalog number options for Power Break circuit breakers, with an illustration of a valid number and the options that each part of the number refers to. Code Description Function Power Break...Page 47: Catalog Numbers For Rms9D Units In Power Break® Ii Circuit Breakers
Catalog Numbers for RMS9D Trip Units in Power Break® II Circuit Breakers The following table contains the catalog number options for Power Break II circuit breakers, with an illustration of a valid number and the options that each part of the number refers to. Code Description Function Power Break II...Page 48: Trip Unit Battery Suppliers
Trip Unit Battery Suppliers Catalog Supplier Nwnber Wilson Greatbatch Ltd. 3B24- Electrochem Lithium Batteries 10,000 Wehrle Drive Clarence, NY (716) 759-5428 Contact the supplier for the nearest distributor.- Page 52 & GE Electrical Distribution Control General Electric Company 4 1 Woodford Ave., Plainville, CT 06062 © 1996 General Electric Company GEH-62730 0596...