Ge-industrial-solutions ProTrip Conversion Kits DB-75, DBL-75, DB-100, DBL Bedienungsanleitung

INTRODUCTION GE Conversion Kits are designed for upgrading existing Westinghouse® low-voltage power circuit breakers, rather than replacing the entire

Installing the Trip Unit 1. Place a lock washer and flat washer over each of the three 1/4-20 x 13/8" screws provided and insert through the mo

SECTION 5. FOUR-WIRE GROUND FAULT OPTION The ground fault option for four-wire installations requires the installation of an additional current sensor

SECTION 6. TESTING AND TROUBLE-SHOOTING WARNING: Do not change taps on the current sensors or adjust the trip unit settings while the breaker is carry

as indicated in Figure 15. In particular, check the following: Breaker CT Rating, A Resistance, ohms DB-75 DBL-75 3000 56–68 DB-100 DBL-100 4000 72

Figure 15. Cabling diagram for ProTrip™ trip units with ground fault on four-wire loads. 14

NOTES 15

These instructions do not cover all details or variations in equipment nor do they provide for every possible contingency that may be met in conne

TABLE OF CONTENTS INTRODUCTION...

LIST OF FIGURES 1. Removing a trip device...

4SECTION 1. GENERAL INFORMATION GE Conversion Kit installation is straightforward, but does require careful workmanship and attention to these instruc

SECTION 3. BACK FRAME BREAKER CONVERSION The back frame conversion of a Westinghouse DB-75 or DB-100 breaker consists of the following steps: 1. Rem

Installing the Phase Sensors (CTs) 1. On draw-out type breakers, remove and save the load-side draw-out finger assemblies, as shown in Figure 3. 2

SECTION 4. FRONT FRAME BREAKER CONVERSION Installing the Trip Paddle 1. Remove the 1/4-20 bolt that fastens the draw-out interlock lever to the comm

Adjusting the Flux Shifter With the breaker in the CLOSED position, the gap between the adjustment screw and the trip paddle should be 1/32 inch, as s

Connecting the Trip Unit Wiring Harness 1. Join the four-pin connector on the trip unit harness to the four-pin connector on the flux shifter. 2.