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GE MicroVersaTrip Plus User Manual
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GE MicroVersaTrip Plus User Manual

Trip units rms9c series; rms9d series;
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GEH–6273E
MicroVersaTrip Plus™ and
MicroVersaTrip PM™ Trip Units
for Type AKR Low-Voltage Power Circuit Breakers
Power Break
Insulated-Case Circuit Breakers
®
Power Break
II Insulated-Case Circuit Breakers
®
R-Frame Molded-Case Circuit Breakers
Low-Voltage Power Circuit Breaker Conversion Kits
User's Guide

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Summary of Contents for GE MicroVersaTrip Plus

  • Page 1 GEH–6273E MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units for Type AKR Low-Voltage Power Circuit Breakers Power Break Insulated-Case Circuit Breakers ® Power Break II Insulated-Case Circuit Breakers ® R-Frame Molded-Case Circuit Breakers Low-Voltage Power Circuit Breaker Conversion Kits User’s Guide...
  • Page 3 Features may be described herein that are not present in all hardware and software systems. GE Electrical Distribution & Control assumes no obligation of notice to holders of this docu- ment with respect to changes subsequently made.

  • Page 4: Table Of Contents

    MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Table of Contents Chapter 1. Introduction 1-1 Read This First ......................1 1-2 Product Structure ......................1 1-3 Trip Unit Functions.....................3 1-4 Trip Unit Catalog Numbers..................3 1-5 Rating Plugs.........................5 1-6 Equipment Interfaces ....................6 MicroVersaTrip Plus Trip Units................6 Neutral Current Sensors..................6...
  • Page 5 MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Table of Contents Power Direction Setup..................21 Power-Reversal Relay Delay................. 21 Rating Plug Current Setting................22 Potential Transformer Primary Voltage.............. 22 Potential Transformer Connection..............22 Power Demand Intervals ..................23 Communication Address ..................23 Accessory Configuration Setup (RMS9D Series Trip Units Only) ......
  • Page 6 MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Table of Contents Chapter 5. Maintenance and Trouble-Shooting 5-1 Trip Unit Removal and Replacement ............... 33 Power Break Insulated-Case Circuit Breakers ............. 33 Power Break II Insulated-Case Circuit Breakers..........33 Type AKR Low-Voltage Power Circuit Breakers..........33 5-2 Rating Plug Removal and Replacement..............
  • Page 7 MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units List of Figures 1. Front view of MicroVersaTrip PM Trip Unit (series RMS9C)..........1 2. Front view of MicroVersaTrip PM Trip Unit (series RMS9D)..........1 3. Rear view of MicroVersaTrip PM Trip Unit (series RMS9C)..........2 4.
  • Page 8 MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units List of Figures 41. Trip Unit display for potential transformer connection choice..........23 42. Trip Unit display for power demand interval............... 23 43. Trip Unit display for setting communication address............23 44.
  • Page 9 MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units List of Tables 1. Breaker type referred to by first character of Trip Unit catalog number........3 2. Breaker frame size maximum CT referred to by second character of Trip Unit catalog number............................4 3. Installed breaker CT size referred to by third and fourth characters of Trip Unit catalog number............................4...

  • Page 11: Chapter 1. Introduction

    The smaller Trip Unit (series RMS9D) is used RMS9C). only on Power Break II circuit breakers. Each of the two sizes is available in both MicroVersaTrip Plus and MicroVersaTrip PM configurations. The front views of the MicroVersaTrip PM Trip Units are shown in Figures 1 (RMS9C) and 2 (RMS9D).

  • Page 12: Rear View Of Microversatrip Pm Trip Unit (Series Rms9C)

    MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Chapter 1. Introduction C C C C A A A A U U U U T T T T I I I I O O O O N N N N : : : : Removal of a Trip Unit from its breaker must be performed with the breaker in the OPEN or TRIPPED position.

  • Page 13: 1-3 Trip Unit Functions

    MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Chapter 1. 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 –...

  • Page 14: Breaker Frame Size Maximum Ct Referred To By Second Character Of Trip Unit Catalog Number

    200 A both additional one- or two-letter suffix to indicate the 225 A RMS9C communication, metering, and relaying functions installed, as shown in Table 5. MicroVersaTrip Plus 400 A both catalog numbers do not have this final suffix. 600 A RMS9C...

  • Page 15: 1-5 Rating Plugs

    MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Chapter 1. Introduction PM -- MicroVersaTrip PM with metering, relaying, Rating plugs for Power Break, Power Break II, and and communication Type AKR breakers cannot be interchanged with Spectra RMS™ MicroVersaTrip Plus MicroVersaTrip PM Trip Units.

  • Page 16: 1-6 Equipment Interfaces

    MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Chapter 1. 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 MicroVersaTrip Plus Trip Units connection is not required for RMS9D-type...

  • Page 17: Power Requirements

    MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Chapter 1. Introduction Power Requirements A small amount of power is necessary to energize the liquid crystal display (LCD) during setup, for viewing breaker status, and for metering displays. MicroVersaTrip PM Trip Units require external +24 Vdc control power for proper operation.

  • Page 18: Battery Function

    MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Chapter 1. Introduction energized breaker. Typical usage could include one half-hour of use for first-time cold setup, 10 Trip Unit status checks per year on a de-energized breaker, and one or two configuration changes per year.

  • Page 19: Liquid Crystal Display

    MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Chapter 1. Introduction Liquid Crystal Display F F F F u u u u l l l l l l l l - - - - S S S S c c c c a a a a l l l l e e e e...

  • Page 20: Chapter 2. Setup Mode

    MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Chapter 2. Setup Mode 2-1 Overview 2-2 Operating Modes This chapter describes the operation of the four MicroVersaTrip Plus and MicroVersaTrip PM Trip function keys, set point and time-delay adjustments, Units have three operating modes: Setup, Metering, and their accuracies.

  • Page 21: Operation Of Function Key, Showing Progression Among Trip Unit Operating Modes

    MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Chapter 2. Setup Mode T T T T r r r r i i i i p p p p U U U U n n n n i i i i t t t t O O O O p p p p e e e e r r r r a a a a t t t t i i i i n n n n g g g g M M M M o o o o d d d d e e e e...

  • Page 22: Trip Unit Setup Mode Programming Function Flow

    MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Chapter 2. Setup Mode Figure 9. Trip Unit setup mode programming function flow.
  • Page 23 MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Chapter 2. Setup Mode Figure 9. Trip Unit setup mode programming function flow (continued).
  • Page 24 MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Chapter 2. Setup Mode Figure 9. Trip Unit setup mode programming function flow (continued).
  • Page 25 MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Chapter 2. Setup Mode Figure 9. Trip Unit setup mode programming function flow (continued).

  • Page 26: Long-Time Pickup

    MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Chapter 2. Setup Mode Long-Time Pickup in Table 11. Figure 13 illustrates the effect of this delay on trip time. Press the key to cycle V A L U E The first setup-mode display is always the long-time through the four choices of time-delay bands.

  • Page 27: Short-Time Delay

    MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Chapter 2. Setup Mode Figure 14. Trip Unit display for short-time pickup coupled with Figure 16. Trip Unit display for short-time delay. long-time pickup. B B B B a a a a n n n n d d d d...

  • Page 28: Instantaneous Pickup

    MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Chapter 2. Setup Mode Instantaneous Pickup the listing of numerical values. Choose this setting to disable instantaneous protection. The instantaneous Instantaneous overcurrent protection, with Trip Unit selection is interlocked with short-time pickup, display illustrated in Figure 19, causes an immediate so that only one function can be turned off at a time.

  • Page 29: Ground-Fault Delay

    MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Chapter 2. Setup Mode B B B B a a a a n n n n d d d d T T T T i i i i m m m m e e e e D D D D e e e e l l l l a a a a y y y y , , , , s s s s e e e e c c c c Disabled 0.10...

  • Page 30: Voltage-Unbalance Relay Delay

    MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Chapter 2. Setup Mode Figure 26. Trip Unit display for voltage-unbalance relay pickup. Figure 29. Trip Unit display for current-unbalance relay delay. Voltage-Unbalance Relay Delay Undervoltage Relay Pickup This function sets the delay time before a voltage- This function measures the true rms voltage in all unbalance trip occurs.

  • Page 31: Undervoltage Relay Delay

    MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Chapter 2. Setup Mode Figure 35. Trip Unit display for overvoltage relay delay. Figure 32. Trip Unit display for undervoltage relay zero-volt trip enabled. Power-Reversal Relay Pickup Undervoltage Relay Delay This function measures the direction of power flow...

  • Page 32: Trip Unit Display For Power-Reversal Relay Delay

    MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Chapter 2. Setup Mode power-reversal protection. The Trip Unit display is Potential Transformer Primary Voltage shown in Figure 38. Enter the primary voltage rating of the potential transformer, as illustrated in Figure 40. The range of values is 120 to 600 volts, with an increment of 1 volt.

  • Page 33: Trip Unit Display For Potential Transformer Connection Choice

    MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Chapter 2. Setup Mode MicroVersaTrip PM Trip Unit. Simply press ENTER identify the unit to the FPU. The address shown on the FPU’s display must not be changed at the breaker. Accessory Configuration Setup (RMS9D Series Trip Units Only) Figure 41.

  • Page 34: Accessory Configuration Switch On Rear Of Trip Unit, Showing Factory Settings

    MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Chapter 2. Setup Mode 3 3 3 3 ..When a protection trip (long-time, short-time, instantaneous, ground-fault, or protective- relay) occurs, the contacts of the Bell Alarm–Alarm Only also change state. The factory switch setting is enabled .

  • Page 35: Trip Unit Metering Mode Function Flow

    MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Chapter 3. Metering Mode 3-1 Overview include current metering. Two configurations of the MicroVersaTrip PM Trip Units (with PM and M The metering mode displays parameter values for suffixes in their catalog numbers) have the full that part of the electrical system controlled by the complement of metering displays.
  • Page 36 MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Chapter 3. Metering Mode Figure 47. Trip Unit metering mode function flow (continued).

  • Page 37: Trip Unit Display For Current Metering

    MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Chapter 3. Metering Mode Current Energy The initial metering display is phase 1 line current, This display, illustrated in Figure 51, shows the as illustrated in Figure 48. Press to cycle aggregate energy flow through the breaker. The VALUE among the three phases.

  • Page 38: Trip Unit Display For Aggregate Apparent Power

    MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Chapter 3. Metering Mode Total Apparent Power Frequency The value displayed for total apparent power, as This display, illustrated in Figure 55, shows the fre- illustrated in Figure 53, represents the aggregate quency of the line current. Either line voltage or total apparent power in volt-amperes flowing current must be present for this display to appear.

  • Page 39: Trip Unit Display For Normal Status

    MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Chapter 4. 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.

  • Page 40: Trip Unit Status Display For Long-Time Overcurrent Pickup

    MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Chapter 4. Status Mode Figure 57. Trip Unit status display for long-time overcurrent Figure 59. Trip Unit Status display for long-time overcurrent pickup. trip. Trip Target and Fault Displays Short-Time Overcurrent Fault Display...

  • Page 41: Trip Unit Status Display For Ground-Fault Trip

    MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Chapter 4. Status Mode Ground-Fault Display Shunt Trip and Undervoltage Release Trip 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...

  • Page 42: Trip Unit Status Display For Long-Time Overcurrent Trip Counter

    MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Chapter 4. Status Mode Figure 65. 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.

  • Page 43: Trip Unit Removal And Replacement

    MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Chapter 5. Maintenance and Trouble-Shooting Rating plugs and MicroVersaTrip Plus and Micro- W W W W A A A A R R R R N N N N I I I I N N N N G G G G : : : : Before beginning this procedure, turn...

  • Page 44: Removing The Interchangeable Rating Plug

    Do not attempt to use a rating plug from a Spectra transformateur d’intensité. RMS™ breaker or a MicroVersaTrip RMS-9/MVT-4 function trip in a MicroVersaTrip Plus or Micro- Interchangeable rating plugs are removed with a VersaTrip PM Trip Unit. Rating Plug Extractor, Catalog No. TRTOOL.
  • Page 45 MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Chapter 5. Maintenance and Trouble-Shooting S S S S y y y y m m m m p p p p t t t t o o o o m m m m...
  • Page 46 MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Appendix 1 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.
  • Page 47 MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Appendix 2 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.
  • Page 48 MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Appendix 3 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.

  • Page 49: Trip Unit Battery Suppliers

    MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units Appendix 4 Trip Unit Battery Suppliers C C C C a a a a t t t t a a a a l l l l o o o o g g g g...
  • Page 52 GE Electrical Distribution & Control General Electric Company 41 Woodford Ave., Plainville, CT 06062 GEH6273 R06 1299 © 1999 General Electric Company...

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