Lucent Technologies Lineage
®
2000 125A Ferroresonant Rectifier J85502C-1
Issue 8 July 1999
Testing 6 - 17
If the rectifier fails any of the tests in the following sections,
replace the CM2 control board (see “Replacing CM2 Control
Board” in Section 8) and begin testing again.
Regulation
(NL/FL) Test
(On Line)
Read the following note before proceeding.
1. If the rectifier is delivering less than 12A, turn the
OUTPUT VOLTS ADJ potentiometer clockwise until it
delivers 12A.
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)
Read the following notes before proceeding.
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
control panel. Note that the rectifier shuts down and the
RFA lamp on the control panel lights.
2. Turn the POWER switch Off, then back On. The RFA
light should go off.
3. Repeat Steps 1 and 2 at the -V fuse.
Note
At least two rectifiers must be operating when this test is
done, and the load requirement must be greater than 12A,
10% of the rated output for the rectifier under test.
Notes
This procedure causes the rectifier to fail. When the procedure
is performed on line, sufficient rectifiers must be operating to
assume the load of the rectifier being tested.
This test causes the rectifier to issue alarms to the plant
controller.