GE Industrial Solutions MicroVersaTrip Plus and MicroVersaTrip PM AK-1-15, AK-1-25 User Manual

Page 9

Advertising
background image

9

5. Remove the two mounting screws securing the

trip paddle for the right pole assembly to the

common trip shaft, as shown in Figure 15. Dis-

card the trip paddle and screws.

NOTE: Figure 15 shows the trip paddle from the

rear, with the right pole assembly removed from
the breaker.

WARNING: The mounting hardware used to reas-

semble the breaker’s pole assemblies must be cor-
rectly tightened for proper operation. Refer to the
original manufacturer’s operating and maintenance
manuals before performing the following step.
Failure to properly tighten the mounting hardware
may result in breaker failure, property damage,
and/or personal injury.

6. Reassemble each pole assembly to the breaker

by following steps 4 to 8 in Electromechanical

Trip Device Removal above in reverse order. Use

the X washer provided to reinstall the line-side

draw-out primary contact fingers, as shown in

Figure 16.

CAUTION: Seven X washers are supplied with the

conversion kit. One of the X washers in smaller than
the rest. Use the six larger washers for installing the
draw-out primary contact fingers.

7. Adjust the breaker’s contact wipe and gap set-

tings per the original manufacturer’s operating

and maintenance manuals.

WARNING: In order to ensure proper operation of

the breaker, it is crucial that the breaker’s contact
wipe and gap settings be adjusted per the original
manufacturer’s operating and maintenance manu-
als. Failure to properly adjust the contact assem-
blies will result in breaker failure, property damage,
and/or personal injury.

8. Reattach the three arc chutes to the breaker.

Continue back frame conversion with installation of
the phase sensors (CTs).

Figure 15. Removing the existing trip paddle, as seen from the

rear.

Figure 16. X washer installed on a draw-out contact finger

assembly.

Advertising