Lucent Technologies Lineage
®
2000 125A Ferroresonant Rectifier J85502C-1
Issue 8 July 1999
Testing 6 - 9
Testing Off
Line
The following tests involve use of the test load and a Battery
Plant Simulator Test Set. Refer to the section entitled “Test Load
Connection” for the procedure to connect a test load and to the
“Initial Conditions for Testing Off Line” section for a Battery
Plant Simulator Test Set.
If the rectifier fails any of the following tests, replace the
CM2 control board (see “Replacing CM2 Control Board” in
Section 8) and begin testing again:
•
Regulation (NL/FL) Test (Off Line)
•
Rectifier Failure Alarm/Fuse Alarm Test (Off Line)
•
Current Limit Test (Off Line)
•
Backup High Voltage Shutdown (HVSD) Test (Off Line)
•
Control (TR) Test
•
Selective High Voltage Shutdown (SHVSD) and Restart
Startup
1. Turn On the ac supply to the rectifier. The PWR lamp on
the test set should light brightly. If it does not light
properly, check the connection of the two small red and
black clip leads. They may be reversed or otherwise
incorrectly connected. These leads provide the operating
voltages in the test set, and the red lead should be
approxi27 volts dc with respect to the black lead.
2. The PWR lamp should remain lit during the remaining
tests as long as the ac supply is turned on.
3. Set the test meter to the 100 volts range, and connect it to
the REG jacks on the bracket of CBA1. These jacks are
the same as on the rectifier control panel when the door is
closed (see Figure 2-1).
4. Adjust the test load so that when the rectifier is turned On,
it will deliver 6-25A, 5 to 20 percent of full load.
5. Turn the POWER switch On. The rectifier should start.
The test meter should indicate 20-25 volts (24-volt
rectifier) or 40-50 volts (48-volt rectifier). The MAN lamp
