Lucent Technologies Lineage
®
2000 25A Ferroresonant Rectifier J85502A-1
Issue 4 May 1998
Testing 6 - 15
•
Regulation (NL/FL) Test (On Line)
•
Rectifier Failure Alarm/Fuse Alarm Test (On Line) Current
Limit Test (On Line)
•
Isolated Current Measuring (VI) Test (MCS or Galaxy
Controller)
•
Backup High Voltage Shutdown (HVSD) Test (On Line)
Regulation
(NL/FL) Test
(On Line)
1. If the rectifier is delivering less than 2.5A, turn the
OUTPUT VOLTS ADJ potentiometer clockwise until it
delivers 2.5A.
2. Observe the amperes reading on the OUTPUT meter.
Hold the RECT TEST switch in the NL position. The
output amperes should decrease.
3. Repeat from Step 1, and in Step 2 hold the RECT TEST
switch in the FL position. The output current should
increase.
Rectifier Failure
Alarm/Fuse
Alarm Test (On
Line)
I
1. Insert a piece of bare wire or the end of a paper clip into a
pencil eraser. Holding the pencil, insert the wire next to the
Note
At least two rectifiers must be operating when this test is
done, and the load requirement must be greater than 2.5A,
10% of the rated output for the rectifier under test.
Note
This procedure causes the rectifier to fail and to issue alarms
to the plant controller. When the procedure is performed on
line, sufficient rectifiers must be operating to assume the load
of the rectifier being tested.