Lucent Technologies Lineage 2000 J85503B-2, Руководство по эксплуатации продукта

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Lucent Technologies Lineage
®
2000 200A Ferroresonant Rectifier J85503B-2
6 - 16 Testing Issue 8 January 1999
1. Holding the insulation on a piece of bare wire or the end of
a paper clip, insert the wire into the fuse holder F1 on the
CM1 fuse board. Note that the rectifier shuts down and the
RFA and FA lamps on the control panel light.
2. Turn the Power switch Off, then back On. The RFA and
FA lamps should go off.
3. Repeat Steps (1) and (2) at the F2 and F3 fuses on CM1.
Current Limit
Test
Note
Please read and comply with the following before testing:
• Adjust the current limit only after verifying that a current
limit circuit problem exists.
• There must be two or more rectifiers with a plant load of at
least 25 percent higher than the capacity of the largest
rectifier.
• This method applies to a working plant. If the conditions
below cannot be met, the unit must be tested off line.
• In a working plant, the current limit set point can be found
by adjusting the Float Adj potentiometer on the rectifier
under test to obtain approximately 3/4 load and a battery
voltage of 52.08 (26.04) volts.
Verify that the load share feature is disabled, S1.9 on CM2 set
to 0 (off).
1. Connect a DDM to the Plant test jacks to verify the battery
voltage.
2. Hold the Rect Test switch in the full load (FL) position to
raise the rectifier output current to current limit. The output
current should indicate 200-202A, 100 to 101 percent of
the rated output current.
3. If the output current is not within 200 to202 amperes, the
current limit needs adjustment. See Section 7.
4. Restore load share.
Isolated Current
Measuring (VI)
Test
This procedure checks the isolated current measuring circuit
(voltage proportional to current adjustment) on the CM2 control
board. The procedure is required for plants using Galaxy