Lucent Technologies Lineage
®
2000 100A Ferroresonant Rectifier J85503A-1
6 - 8 Testing
Issue 6 October 1998
2. Strap a short across capacitor C27 on CM2, see Figure
2-3.
At I
load
= 100-102A, 100 to 101 percent of rated output
current, use the Output Volts Adj potentiometer to adjust
V
out
to:
52.08 volts (48-volt rectifier)
26.04 volts (24-volt rectifier)
3. Remove strap from capacitor C27 on CM2. Observe that
V
out
is:
51.98 - 52.03 volts (48-volt rectifier)
25.99 - 26.01 volts (24-volt rectifier)
If not, see “Adjust Current Limit” in Section 7,
Troubleshooting and Adjustments.
4. Increase the load to 109-111A, 110±1 percent. V
out
should
be below:
51.58 volts (48-volt rectifier)
25.79 volts (24-volt rectifier)
If not, see “Adjust Current Limit” in Section 7,
Troubleshooting and Adjustments.
5. Decrease the load to 96-98A, 96 to 98 percent of the
rectifier rating. Observe that V
out
is greater than:
52.03 volts (48-volt rectifier)
26.01 volts (24-volt rectifier)
Phase Failure
Test (Off Line)
1. Set the load to 50-60A, 50 to 60 percent of the rectifier's
rated amperage.
2. With the Power switch still On, turn off the ac service and
note that the rectifier shuts down and that both the PWR
and MAN lamps on the test set go off.
Note
V
out
is the voltage reading between the rectifier output
terminal and return, see Figure 5-4.
