GE Industrial Solutions Galaxy Verification - Manual (Page 29)

Galaxy Power System Verification Procedures
Issue 3 January 2008 Galaxy SC Controller Performance Verification Procedures 2 - 17
Rectifier Fail Alarm Test
Introduction If the RFA alarm was observed during the High Voltage Shutdown Test
no separate test is required.
If the High Voltage Shutdown Test is not performed, generate an RFA
(Rectifier Fail Alarm) in each of the plant rectifiers individually, using
the procedures below:
Lucent Serial
Rectifiers 595 and
596 Series
For Lucent 595 and 596 Series rectifiers, follow the steps in the table
below:
Step Action
1 Turn the rectifier Off. Wait for the rectifier to power down.
2 Insert a plastic stick between the front panel grills to block
the fan rotation.
3 Turn the rectifier On. After several seconds, the rectifier
will issue an RFA alarm and the plant will generate a PMN.
4 Remove the fan obstruction and toggle the power switch
Off and back On to restart the rectifier and retire the alarm.
5 Generate an RFA (Rectifier Fail Alarm) in each of the plant
rectifiers individually and verify that the RECT and
MINOR LEDs become active along with the Power Minor
and RFA alarm relays.
J855- or
J874-Series
Rectifiers
For Lineage Power J855-series or J874-series rectifiers an RFA is easily
accomplished by operating the “+V” or “-V” fuse alarm circuit by
inserting a paper clip into the alarm indicating hole of the fuse holder.