GE Industrial Solutions Galaxy Verification - Manual (Page 21)

Galaxy Power System Verification Procedures
Issue 3 January 2008 Galaxy SC Controller Performance Verification Procedures 2 - 9
High Float Voltage Alarm/High Voltage Shutdown Alarm
Tests
Overview The High Float Voltage Alarm Test differs depending on whether
the system uses parallel or serial rectifiers. Both are described in
this section.
The HV test can be done by either raising the plant voltage above the
threshold set for HFV (High Float Voltage) and HVSD (High Voltage
Shutdown) or by lowering the thresholds for these conditions to make
them active.
Note: HFV is an alarm-only that can notify users of an impending HV
condition before the need for a shutdown arises.
Preparations Note the value of plant voltage from the Default screen. Use the
following table to record settings before beginning the test procedures
for both parallel and serial rectifiers:
Plant Nominal Float
Voltage
HV HFV