Lucent Technologies Lineage
®
2000 125A Ferroresonant Rectifier J85502C-1
8 - 18 Spare Parts and Replacement Procedures
Issue 8 July 1999
2. Disconnect the two quick-disconnect leads coming from
L1. One goes to ac capacitor C10, and the other is on
thyristor Q1, pin 2.
3. In the 24-volt rectifier, L1 is physically smaller and
mounts to a plate that mounts to the rear of the rectifier. In
the 48-volt rectifier, L1 mounts directly to the rear of the
rectifier using slotted mounting tabs. In either case, the
weight of L1 must be supported during removal
(approximately 30 lbs. for the 48-volt L1, and less for the
24-volt unit).
For 24-Volt Rectifier: Remove the two upper nuts that
secure the plate (attached to L1) to the rear wall of the
rectifier. Then loosen the two lower nuts that secure the
plate to the wall. Lift up the L1/plate assembly and then
pull forward to remove.
For 48-Volt Rectifier: Remove the topmost two nuts of
L1 and loosen the bottom two nuts. Slide L1 up, and then
pull forward to remove.
AC Capacitors
(C10 or C11)
1. Perform the steps in “Diode Heat Sink Assembly” in this
section to move the diode heat sink completely out of the
way.
2. Remove the quick-disconnect connectors from the
capacitor tabs.
3. Loosen the screws of the desired capacitors mounting strap
by inserting screwdriver blade, from the left, through
access hole in capacitor bracket, opposite screw.
4. Slide the capacitor out (toward front) and then slightly to
the left to avoid the dc filter assembly.
Note
The ac capacitors are mounted under, and to the right of, the ac
inductor (L1) on the ac capacitor bracket. The upper capacitor
is C10 and the lower capacitor is C11.