Lucent Technologies Lineage
®
2000 100A Ferroresonant Rectifier J85503A-1
Issue 6 October 1998
Testing 6 - 13
b. Hold the meter selector switch in the Rect V position,
and use a small screwdriver to turn the Output Volts
Adj potentiometer clockwise until the digital meter
reads approximately battery voltage, typically 26 volts
for 24-volt plants or 52 volts for 48-volt plants.
c. Turn the DC Output circuit breaker on (up).
d. Turn the Power switch Off.
5. For testing with a controller, connect plant control cable
J2A to P2A on CM2, then replace REG fuse in the
controller. For a controllerless application, leave J2A
disconnected, and replace REG fuse in the remote bay.
6. Turn rectifier Power switch On.
Testing On Line
On and off-line testing require different procedures, although
most tests can be performed in either situation. The Control (TR)
and Selective HVSD Tests are omitted from this section because
these signals originate in the plant controller or a remote
location, and the test procedure depends on that device. (See
your plant controller product manual.)
If you have just tested the rectifier off line, it is not necessary to
repeat the tests on line.
If the rectifier fails any of the following on line tests, replace
the CM2 control board as described in “Replace CM2
Control Board” in Section 8, Spare Parts and Replacement
Procedures, and begin testing again.
Regulation
(NL/FL) Test
(On Line)
1. If the rectifier is delivering less than 10A, turn the Output
Volts Adj potentiometer clockwise until it delivers 10A.
Note
At least two rectifiers must be operating when this test is
done, and the load requirement must be greater than 10A,
10% of the rated output for the rectifier under test.
