Lucent Technologies Lineage
®
2000 25A Ferroresonant Rectifier J85502A-1
6 - 14 Testing
Issue 4 May 1998
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.
8. For testing with a controller, connect plant control cable
J2A to P2A on CM2, then replace REG fuse in the
controller. For a controller-less application, leave J2A
disconnected, and replace REG fuse in the remote bay.
9. 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.) Also, straps on the CM1
option board must be set for List WB to enable the external
selective HVSD. Straps must be set for List WA to enable
external sensing. Check CM1 and Table 8-B in this manual or
Tables A and R on J85502A-1 drawing if you expect to have
these features.
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 tests, replace the CM2
control board (see Section 8) and begin testing again:
Note
If the rectifier continues to operate, proceed to the next
paragraph. If the rectifier shuts down due to initial high
voltage, monitor the RECT V voltage. When this reading
reaches 26 volts for 24-volt plants, or 52 volts for 48-volt
plants, turn On the circuit breaker. If the rectifier shuts down
for any other reason, such as component failure, see Section 7,
Troubleshooting and Adjustments.
