Lucent Technologies Lineage
®
2000 50A Ferroresonant Rectifier J85502B-1
2 - 6 Product Description
Issue 6 May 1999
Limited output alarm (LOA)
Fuse alarm
Electronic current limit
Output current isolation circuit
•
The CM3 circuit module (207A meter board) controls the
digital Output meter on the control panel of List 10
rectifiers. The meter displays the rectifier's output current,
voltage, or the plant battery voltage depending on the
three-position selector switch (see Figure 2-1).
•
The CA1 circuit module (ED83156-30 Group 1) contains a
triac/thyristor snubber network. Refer to schematic drawing
SD-82604-01 for further information.
•
The CM5 circuit module (434A or B) has ac and dc voltage
monitor circuits. When activated, these circuits shut down
the rectifier. The dc circuit issues an RFA alarm. The
rectifier must be restarted when the problem has been
cleared. When the ac circuit is activated, the rectifier shuts
down but automatically restarts when the corrected ac
voltage is restored.
Front Panel
Controls and
Indicators
Figure 2-1 shows the control panel on the front of the J85502B-1
50-ampere rectifier. The following list describes the controls and
indicators on the control panel. These features should be
observed and manually operated during normal rectifier
performance. Bold letters indicate labels that appear on the
control panel or inside the rectifier.
Caution
Equipment damage may occur if circuit modules are
connected or disconnected with voltages present. See
Section 8 for how to replace circuit modules and for
proper handling of circuit modules to avoid damage from
electrostatic discharge.
