Lucent Technologies Lineage
®
2000 25A Ferroresonant Rectifier J85502A-1
6 - 8 Testing
Issue 4 May 1998
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 1.25-5A (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
on the test set should light and remain lit as long as the
rectifier is turned On.
6. Turn the DC OUTPUT circuit breaker On (up).
Regulation
(NL/FL) Test (Off
Line)
1. Hold the meter selector switch in the RECT V position.
Watch the test meter and move the RECT TEST switch to
NL. In the NL position, the voltage should drop between
0.3 and 0.6 volt.
2. Repeat Step 1 with the RECT TEST switch in the FL
position. The voltage should increase between 0.1 and 0.4
volt.
Rectifier Failure
Alarm/Fuse
Alarm Test (Off
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 on the control panel. Note
that the rectifier shuts down and the RFA lamps on the
control panel and test set light.
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. The rectifier shuts down and the RFA
LED lights on the rectifier.
5. Turn the POWER switch Off, then back On. The RFA
LED should go off.
