GE Industrial Solutions GPS 4848_100 Users Guide (single rectifier shelf) - Manual (Page 71)

Galaxy Power System 4848/100 with 595 Series Rectifiers S1:3 and later
Issue 10 February 2008 Maintenance and Replacement 11 - 7
Replacement Procedures, continued
Removing a
Rectifier
Removing a Rectifier
Step Action
1 Set power switch to STBY.
2 Turn OFF ac circuit breakers.
3 Turn OFF output circuit breaker on rectifier.
4
Wait 5 minutes to allow capacitors to discharge.
5 Using a 5mm Allen-head “T” wrench, slowly turn the locking
screw counterclockwise to release the rectifier from the shelf.
6 Slowly slide rectifier from shelf.
Caution
Rectifier is heavy (59 pounds). Use two people to lift and move
rectifiers.
Do not rest rectifier on faceplate or rear chassis; damage to
faceplate and/or rear busbars will occur, rendering the unit
unusable.
7 If the rectifier is not going to be replaced immediately, retire the
active CMA (Communications Fail - Minor) against that rectifier
ID by using the following path on the Configuration menu on the
front display of the plant controller:
Menu -> CONFIG -> RECT MNGR (Basic Controller)
or
Menu -> CONFIG -> RECT MNGR -> RECT OPER (Intel
Controller)
Move to the Field RMOVE RECT and use the (+) key to input the
Rectifier ID of the removed rectifier. Press Enter to clear the
alarm.
Continued on next page.