Lucent Technologies Lineage
®
2000 50A Ferroresonant Rectifier J85502B-1
Issue 6 May 1999
Testing 6 - 17
control panel. Note that the rectifier shuts down and the
RFA LED on the control panel lights.
2. Turn the POWER switch Off, then back On. The RFA
LED should go off.
3. Repeat Steps 1 and 2 at the -V fuse.
4. Using clip lead, momentarily short between E14 and E1 on
205 control board. Rectifier shuts down and RFA lights on
rectifier.
5. Turn the POWER switch Off, then back On. The RFA
light should go off.
6. Repeat Steps 4 and 5 for E14 and E2, E14 and E3, and
E14 and E4.
Current Limit
Test (On Line)
1. Connect a DMM to the REG test jacks to verify the battery
voltage.
2. Hold the RECT TEST switch in the full load (FL)
position to raise the rectifier output current to current limit.
The output current should indicate 50-51A, 100 to 101
percent of the rated output current.
Notes
Adjust the current limit only after verifying that a current
limit circuit problem exists.
There must be two or more rectifiers with a plant load of
at least 25 percent higher than the capacity of the largest
rectifier.
This method applies to a working plant. If the conditions
in the following note cannot be met, the unit must be
tested off line.
In a working plant, the current limit set point can be found
by adjusting the OUTPUT VOLTS ADJ potentiometer
on the rectifier under test to obtain approximately 3/4 load
and a battery voltage of 52.08 volts.
