Lucent Technologies Lineage
®
2000 50A Ferroresonant Rectifier J85502B-1
6 - 16 Testing
Issue 6 May 1999
If the rectifier fails any of the following tests, replace the CM2
control board (see Section 8) and begin testing again:
•
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 5A, turn the
OUTPUT VOLTS ADJ potentiometer clockwise until it
delivers 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)
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
alarm indicator of the +V fuse inside the door on the
Note
At least two rectifiers must be operating when this test is
done, and the load requirement must be greater than 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.
