ABB Micro Versa Trip Plus Conversion Kits Installation Instructions Manual

For i-t-e types kd and ke low-voltage power circuit breakers

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DEH-40019A Installation IInstructions

Micro Versa Trip Plus

Micro Versa Trip PM

For I-T-E

Types KD and KE

Low-Voltage Power Circuit Breakers

INTRODUCTION

Conversion Kits are designed for upgrading

existing I-T-E® low-voltage power circuit

breakers, rather than replacing the entire

breaker.

The

Conversion

MicroVersaTrip Plus™ or MicroVersaTrip

PM™ Trip Units, the latest technological ad-

vance in trip systems.

MicroVersaTrip Plus and MicroVersaTrip

PM Conversion Kits are designed and

tested to conform to ANSI Standard

C37.59, allowing the retrofitter to properly

install the kit and acceptance test the

breaker,

This publication covers installation of

MicroVersaTrip Plus and MicroVersaTrip

PM Conversion Kits on I-T-E KD and KE low-

voltage

power

circuit

Conversion

Kit

components needed to convert from the

existing trip system.

and

Conversion Kits

Kits

include

breakers.

Each

contains

all

the

Table of Contents

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Summary of Contents for ABB Micro Versa Trip Plus Conversion Kits

Page 1 DEH-40019A Installation IInstructions Micro Versa Trip Plus Micro Versa Trip PM Conversion Kits For I-T-E Types KD and KE ® Low-Voltage Power Circuit Breakers INTRODUCTION Conversion Kits are designed for upgrading existing I-T-E® low-voltage power circuit breakers, rather than replacing the entire breaker.
Page 2: Table Of Contents
TABLE OF CONTENTS SECTION 1. GENERAL INFORMATION ......................4 SECTION 2. BEFORE INSTALLATION......................SECTION 3. DISASSEMBLING THE BREAKER Installing and Adjusting the Flux Shifter Assembly ....................5 Flux Shifter Test ...............................7 Installing the Trip Unit Wiring Harness .......................8 Installing the Trip Unit Mounting Plate ......................10 Installing the Current Sensors ..........................12 Installing the Communications Harness ......................13 SECTION 4.
Page 3 LIST OF FIGURES I-T-E® KE breaker before conversion to operation with a MicroVersa Trip Plus ™ or MicroVersa Trip PMTM trip unit......................5 Existing trip device and trip paddle ......................5 Breaker ready for installation of the flux shifter assembly ..............5 Mounting the flux shifter and new trip paddle ..................
Page 4: Section 1. General Information
SECTION 1. GENERAL INFORMATION SECTION 2. BEFORE INSTALLATION Conversion Kit installation is straightforward, but Before starting any work, turn off and lock out all power sources leading to the breaker, both primary does require careful workmanship and attention to and secondary. Remove the breaker to a clean, well these instructions.
Page 5: Installing And Adjusting The Flux Shifter Assembly
SECTION 3. INSTALLING THE CONVERSION KIT I-T-E® KO and KE breaker frames need not be separated front and back for installation of the Conversion Kit. The general procedure is to remove the existing parts, as necessary, then install the kit. First, remove the breaker to a clean, well-lighted work bench and place it in the upright position, so that both the front and back are easily accessible.
Page 6: Mounting The Flux Shifter And New Trip Paddle
4. Attach the flux shifter assembly mounting plate to the front of the angle bracket, as indicated in Figure 3. Use the bolts, nuts, and lock washers removed in step 2, with the bolts going in order through the flux shifter mounting plate, the angle bracket, and the trip arm adjusting bracket, as shown in Figure 4.
Page 7: Flux Shifter Test
9. Adjust the trip paddle by setting the gap, as shown in Figure 4, to 0.06 inch with the breaker OPEN. CAUTION: Proper maintenance, lubrication, and setting of the trip latch engagement is essential for proper flux shifter operation. This procedure is described in the breaker manufacturer's maintenance manual.
Page 8: Installing The Trip Unit Wiring Harness
Installing the Trip Unit Wire Harness CAUTION: 1. The wiring harness includes a 36-pin connector, shown in Figure 8, that must be assembled and installed onto the trip unit mounting plate before the trip unit can be installed. CAUTION: The adapter bracket must be installed onto the trip unit 36-pin connector and trip unit mounting plate as described below.
Page 9: Installing The Push Nuts Onto The Guide Pins
4. Slide adapter bracket and connector assembly over the guide pins of the trip unit bracket. Press the two steel push nuts provided onto the guide pins using a nut driver, as shown in Figure 11, until the assembly is held firmly against the trip unit mounting plate.
Page 10: Installing The Trip Unit Mounting Plate
Installing the Trip Unit Mounting Plate 1. Attach the trip unit mounting plate to the support bracket, as shown in Figure 13. a. The two larger screws at the top attach to tapped holes in the support bracket. b. Pull out the locking lever, as shown, then insert the small screw through the hole.
Page 11 4. Route the four-pin flux shifter connector behind the closing solenoid, out between the right side of the solenoid and the auxiliary switch, to the flux shifter assembly and mate it with the connector from the flux shifter. Secure the cable to the flux shifter bracket with wire ties so that the cable does not interfere with any moving parts.
Page 13: Installing The Communications Harness
SECTION 4 INSTALLING THE TRIP UNIT Installing the Communications Harness The communications harness is used if the trip Use the following procedure to install the unit communicate with power trip unit. management control system. 1. Pull out the locking lever on the trip unit communications connector, included in the trip mounting plate until it snaps into the open unit...
Page 14: Section 5. Four-Wire Ground Fault Option
SECTION 5. FOUR-WIRE GROUND FAULT OPTION ground fault option four-wire installations requires installation additional current sensor on the neutral bus in the equipment. The sensor is connected to the trip unit through the connector provided in the wiring harness. 1. Mount the neutral sensor on the outgoing neutral lead, normally in the bus or cable compartment in the equipment.
Page 15: Section 6. Testing And Trouble-Shooting
Check for continuity with a continuity tester or VOM from the white lead of the phase A CT to CAUTION: Do not attempt to use ABB/GE brand Test Kit the white lead of the phase 8 CT. cat. no. TVTS1 or TVRMS on this trip unit.
Page 16 from all power sources, perform the following procedure: 1. Check that all phase sensors are the same type (current range). 2. Verify that the tap settings on all three phase sensors are identical. 3. Verify that the wiring harness connections to the sensors have the proper polarity (white lead to common, black lead to tap), as shown in the cabling diagram in Figure 24.
Page 17: Ground Fault On Four-Wire Loads
_ _ _ _ _ _ _ _ _ _ _ Low-Voltage Circuit Breaker __________ _ Trip Unit 1 9 )13 36 )35 )33 )29 )25 J 34 ) 31 l 32 )281) 18 )22 )10 )14) 191)23) 111)15) 20024 )12 J16) 211 ) 17) �+--+-t--+--+-t--+--+--+--+---+--+--+-t--+--+--+--+-+----1--t---+----1--+ 1----' Trip Unit...
Page 18 Should further information be desired or should particular problems arise that are not covered sufficiently for the purchaser's purposes, the matter should be referred to the ABB Inc. —...

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