Lucent Technologies Lineage
®
2000 125A Ferroresonant Rectifier J85502C-1
8 - 24 Spare Parts and Replacement Procedures
Issue 8 July 1999
Remove heavy duty (thick wall) heat shrink insulation by
carefully cutting it away with a sharp knife. Any electrical tape
used to reinforce the connection must be removed. The heavy
duty heat shrink tubing recommended is rated at 300 volts
minimum at 105 degrees Celsius. A recommended heat shrink
tubing is T&B HS4-30L, comcode 402696306.
Disconnecting
a Rectifier
This section gives the procedure for disconnecting a rectifier
from an operating plant. Before performing the procedure,
personnel should be familiar with “Installing or Adding a
Rectifier” in Section 5.
1. At the rectifier control panel, turn the POWER switch
Off, and the DC OUTPUT circuit breaker Off (down).
2. At the ac distribution service panel, remove the fuses or
open the circuit breaker supplying the rectifier with ac
power. Tag fuse holders or circuit breaker to instruct all
personnel to leave the circuit deenergized.
3. Remove associated REG fuse from plant controller.
4. Disconnect the plant control cable from the rectifier CM2
control board, at connector P2A. Remove the cable from
the cable tie anchors to permit its withdrawal through the
conductor opening in the cabinet. The cable tie anchors,
while providing a secure physical support of the cable
assembly, protect the cable assembly from undesirable
abrasion and bending.
5. The rectifiers' output filter capacitor must be completely
discharged. Verify by connecting a DMM directly to the
capacitor bus bars inside the rectifier. It will take several
minutes to completely discharge the capacitors, after the
DC OUTPUT circuit breaker is turned Off in Step 1.
6. One at a time, disconnect the battery plant end of the dc
output and output return conductors from the battery plant
charge and charge ground bus bars. Insulate the connector
ends and label the conductors for easy identification when
reconnecting.
7. One at a time, disconnect the dc output conductors from
the rectifier “hot” and return bus bars. Insulate the
