GE Industrial Solutions TVRMS2 User Manual

GEK–97367C

TVRMS2 Digital Test Kit

User’s Guide

MicroVersaTrip® Digital Test Kit Controls, Indicators, and Connections

WARNINGS

CAUTIONS

GEK–97367C

WARNINGS, CAUTIONS, AND NOTES

AS USED IN THIS PUBLICATION

Warning notices are used in this publication to emphasize that hazardous voltages, currents, or other conditions that could cause personal injury are present in this equipment or may be associated with its use.

Warning notices are also used for situations in which inattention or lack of equipment knowledge could cause either personal injury or damage to equipment.

Caution notices are used for situations in which equipment might be damaged if care is not taken.

NOTES

Notes call attention to information that is especially significant to understanding and operating the equipment.

This document is based on information available at the time of its publication. While efforts have been made to ensure accuracy, the information contained herein does not cover all details or variations in hardware and software, nor does it provide for every possible contingency in connection with installation, operation, and maintenance. 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 document with respect to changes subsequently made.

GE Electrical Distribution & Control makes no representation or warranty, expressed, implied, or statutory, with respect to, and assumes no responsibility for the accuracy, completeness, sufficiency, or usefulness of the information contained herein. No warrantees of merchantability or fitness for purpose shall apply.

The following are trademarks of GE Company:

MicroVersaTrip®, MicroVersaTrip Plus™, MicroVersaTrip PM™, Spectra RMS™, Power+™

TVRMS2 Digital Test Kit Table of Contents

Chapter 1. Introduction

1–1 Description ............................................................................................................................................. 1

1–2 Application to Pre-RMS-9 Trip Units.....................................................................................................1

1–3 Definition of Terms ...............................................................................................................................2

1–4 Test Selection .........................................................................................................................................2

Chapter 2. Controls, Indicators, and Connections

2–1 Front Panel.............................................................................................................................................3

2–2 Top Panel (Test Cable Connection.......................................................................................................3

2–3 Bottom Panel..........................................................................................................................................4

Chapter 3. Initialization and Setup

3–1 Introduction...........................................................................................................................................5

3–2 Initialization and Self-Test.....................................................................................................................5

3–3 Trip Unit Type Selection .......................................................................................................................5

3–4 Test Selection Sequence.........................................................................................................................7

Chapter 4. Power+™, RMS-9, and Epic Trip Units

4–1 Test Structure (Power+™, RMS-9, and Epic)........................................................................................8

4–2 Switch Settings Test................................................................................................................................9

Rating Plug Value (X).....................................................................................................................9

Current Setting (C).........................................................................................................................9

Long Time Delay.............................................................................................................................9

Short Time Pickup and Delay.........................................................................................................9

Instantaneous Pickup (INST).......................................................................................................10

Ground Fault .................................................................................................................................10

Failures ..........................................................................................................................................11

4–3 Self-Test Report....................................................................................................................................11

4–4 Overcurrent Simulation.......................................................................................................................12

Long Time Test.............................................................................................................................12

Short Time Test.............................................................................................................................12

Ground Fault Test .........................................................................................................................12

Overcurrent Simulation Test ........................................................................................................12

4–5 High-Current Primary Injection ..........................................................................................................13

Trip Unit Ground Fault Defeat..................................................................................................... 13

Trip Unit Pickup and Trip Monitor .............................................................................................14

4–6 Trip Unit Quick Test ...........................................................................................................................14

Chapter 5. MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units

5–1 Test Structure (MicroVersaTrip Plus™ and MicroVersaTrip PM™).................................................15

5–2 Pickup Settings .....................................................................................................................................16

5–3 Self-Test Report....................................................................................................................................16

5–4 Overcurrent Simulation.......................................................................................................................16

Long Time Test.............................................................................................................................17

Short Time Test.............................................................................................................................17

Ground Fault Test .........................................................................................................................18

TVRMS2 Digital Test Kit

Table of Contents

Overcurrent Simulation Test ........................................................................................................18

5–5 High Current Primary Injection ..........................................................................................................19

Trip Unit Ground Fault Defeat.....................................................................................................19

Trip Unit Pickup and Trip Monitor .............................................................................................20

5–6 Trip Unit Quick Test............................................................................................................................20

iii

TVRMS2 Digital Test Kit List of Figures and Tables

Figures

1. TVRMS2 Digital Test Kit connected to a MicroVersaTrip PM™ Trip Unit............................................ 1

2. Front panel of the Test Kit........................................................................................................................ 3

3. Bottom panel of the Test Kit, showing the 120 Vac power cord and the battery-storage area. ............... 4

4. Block diagram of Test Kit initialization and Trip Unit selection. ........................................................... 5

5. TS-style Trip Unit (Power+™, RMS-9 and Epic)...................................................................................... 6

6. TT-style Trip Unit (MicroVersaTrip Plus™ and MicroVersaTrip PM™)............................................... 6

7. A-, B-, or C-style Trip Unit (enhanced MicroVersaTrip Plus™ and MicroVersaTrip PM™).................. 6

8. MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units in Spectra RMS™ molded-case

circuit breakers.......................................................................................................................................... 6

9. Power+™ Trip Unit. .................................................................................................................................. 6

10. Test-selection structure for Power+™, RMS-9 and Epic Trip Units. ........................................................ 8

11. Test-selection structure for MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units ................. 15

Tables

1. Matrix showing compatibility among Test Kit models and Trip Unit types............................................ 1

2. Definitions of terms used in this guide..................................................................................................... 2

3. Tests available with the TVRMS2 Digital Test Kit and the functions tested ........................................... 2

TVRMS2 Digital Test Kit

Chapter 1. Introduction

1–1 Description

The TVRMS2 Digital Test Kit is a light-weight, portable test instrument designed for field testing of RMS-9, Epic, Power+™, MicroVersaTrip Plus™, and MicroVersaTrip PM™ Trip Units. The Test Kit includes the following features:

• Operation from 120 Vac or six D-cell batteries.

• Trip Unit testing without de-energizing the breaker or removing the Trip Unit from the breaker.

• Verification of switch settings on Power+, RMS-9 and Epic Trip Units.

• Either trip or no-trip testing for time-overcurrent characteristics.

• Monitoring of pickup current and trip time during high-current injection testing.

• Menu-driven test procedures for ease of use.

The Test Kit interface with the Trip Unit is a three-wire digital communication link through the test jack on the front of the Trip Unit, as illustrated in Figure 1.

1–2 Application to Pre-RMS-9 Trip Units

The TVRMS2 Test Kit cannot be used to test earlier MicroVersaTrip solid-state programmers. Table 1 is a matrix showing the compatibility among types of Trip Units and Test Kit models.

CAUTION: The older TVTS1 Test Kit cannot be used to test RMS-9, Epic, Power+, MicroVersaTrip Plus, and MicroVersaTrip PM Trip Units and could cause damage to the Trip Unit if an attempt is made to do so.

ATTENTION: Ne pas utiliser TVTS1 (modèle précedent) Test Kit avec les déclencheurs RMS-9, Epic, Power+, MicroVersaTrip Plus, et MicroVersaTrip PM (le déclencheur pourrait être endommagé).

CAUTION: The older TVRMS Test Kit cannot be used to test MicroVersaTrip Plus and MicroVersaTrip PM Trip Units and could cause incorrect test results if an attempt is made to do so.

ATTENTION: Ne pas utiliser TVRMS (modèle précedent) Test Kit avec les déclencheurs MicroVersaTrip Plus et MicroVersaTrip PM (les résultants peuvent être incorrects).

Figure 1. TVRMS2 Digital Test Kit connected to a

MicroVersaTrip PM™ Trip Unit.

Trip Unit Type

Test Kit

TVTS1 Yes No No TVRMS No Yes No TVRMS2 No Yes Yes

¿ ANSI and UL applications only.

MicroVersaTrip® TP4VT, TP9VT,

TAVT, and T4VT

RMS9 and Epic (“TS” type)

Power+™ ¿,

MicroVersaTrip Plus™ and

MicroVersaTrip PM™ (“TT” and

“A,B,orC” type) or Spectra RMS™

breaker

Table 1. Matrix showing compatibility among Test Kit models and Trip Unit types.

TVRMS2 Digital Test Kit Chapter 1. Introduction

1–3 Definition of Terms

The terms listed and defined in Table 2 are displayed on the Test Kit and are used throughout this guide.

Term Definition

xCT

xIn

xLT

LT Long Time overcurrent protection function

ST Short Time overcurrent protection function

INST Instantaneous overcurrent protection function

GF Ground Fault overcurrent protection function

H The Short Time rating of the breaker frame.

Trip Test A test that causes the breaker to trip.

No-Trip

Test

Table 2. Definitions of terms used in this guide.

The current sensor rating – the primary current rating of the breaker’s current sensors.

The current rating of the Trip Unit, set by the rating plug.

The current setting of the Trip Unit – determined as a multiplier of the rating plug value.

A test that does not cause the breaker to trip.

1–4 Test Selection

The Test Kit can perform three types of tests on Trip Units:

• Function tests verify the operation of the Trip Unit, including:

– Time-overcurrent tests, both trip and no-trip – Switch-setting verification (Power+, RMS-9 and

Epic only)

– Trip Unit self-test report

• High-current tests monitor the functioning of the Trip Unit during primary current-injection testing of the breaker with a separate, commercially available highcurrent test set. Under high-current tests, the Test Kit can temporarily suppress or defeat Ground Fault protection. The Test Kit monitors the time at which the Trip Unit goes into overcurrent pickup and displays the overcurrent condition and the time required to trip.

• Quick test verifies that the Trip Unit and the breaker mechanism can cause the breaker to trip by actually tripping the breaker.

The tested functions are listed in Table 3.

Trip Unit

Test Selected

Switch Settings¿ X X X X X

Self-Test X X X

Overcurrent Simulation:

No Trip Trip

Quick Test X X

High-Current (Primary) Injection

RMS-9, Power+, and Epic only.

Function Switches

X X

X X X X X X X

A/D

Converter

Micro-

processor

(also ROM &

RAM)

X X

Nonvolatile

Memory

X X

Rating Plug

X X

Flux Shifter

Trip Activator &

Breaker

Tripping

Mechanism

Input

Sensors

(CTs)

Table 3. Tests available with the TVRMS2 Digital Test Kit and the functions tested.

TVRMS2 Digital Test Kit

Chapter 2. Controls, Indicators, and Connections

2–1 Front Panel

Figure 2 shows the front panel of the Test Kit.

Figure 2. Front panel of the Test Kit.

The functions of the various switches and displays on the front panel are as follows:

• Display Panel – The display panel is a 40-character by 2-line liquid crystal display (LCD). The top line contains instructions and information for each stage of the test. The bottom line identifies the functions of each of the four function keys during each test.

• Function Keys – The function of each of the keys is determined by the test state of the Test Kit and is identified on the bottom line of the display panel. The function keys are labeled form left to right as F1,

F2, F3, and F4.

• LEDs – There are six light-emitting diodes (LEDs) on the front panel:

FUNCTION TEST – A yellow LED that lights when

the Test Kit is in the function test sequence.

HI CURRENT TEST – A yellow LED that lights

when the Test Kit is in the High-Current test sequence.

NO TRIP TEST – A yellow LED that lights if the test

being performed will not trip the breaker.

BREAKER TRIPPED – A red LED that flashes when

the Trip Unit under test has tripped the breaker.

TRIP TEST – A red LED that flashes if the test

being performed will trip the breaker. This will occur if Quick Test is selected or if Trip Test is selected during an Overcurrent Test sequence.

LOW BATTERY – A red LED that lights when the

Test Kit battery is becoming weak. Further testing

under low-battery conditions can yield erroneous test results.

• Escape Key – Pressing the ESCAPE key returns the Test Kit to its power-up or “home” state and initiates the self-test sequence.

• On-Off Switch – The ON-OFF rocker switch has a red band that is visible when the Test Kit is on.

• Legend – The legend provides a quick reference to the various abbreviations used on the display.

2–2 Top Panel (Test Cable Connection)

The top panel contains a test port, Test Port A, which accepts the 3.5 mm, three-conductor plug attached to the test cable. The other end of the test cable is inserted into the test jack of the Trip Unit rating plug. A similar test cable can be obtained from Radio Shack (catalog number 42-2387).

CAUTION: Switch the Test Kit power off before inserting the test jack into or removing it from the Trip Unit rating plug.

ATTENTION: Eteindre le Test Kit avant de connecter ou de déconnecter la prise jack du calibreur.

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