Lucent Technologies Lineage
®
2000 200A Ferroresonant Rectifier J85503B-2
Issue 8 January 1999
Testing 6 - 21
RFA Circuit
Verification RFA
Test
This procedure tests the alarm system.
1. Provide a contact closure on TB3-1 and TB3-2 of CM4.
2. The rectifier and controller should indicate an RFA, but the
rectifier should not shut down.
Meter Test (on
line)
1. Adjust the load so that the rectifier delivers approximately
100 amperes, 50% of its rated current capacity.
2. Connect a DMM, set on the dc millivolt scale, across the
329 test points E25/E26. See Figure 6-2.
3. Observe the DMM and record the rectifier’s shunt voltage.
The shunt is rated 250A/50mV = 5A/mV, which means
that each millivolt of voltage drop across the shunt
indicates 5A of output current.
4. Convert the DMM shunt voltage reading to amperes. For
example, if the DMM reads 20mV, then 20mV x 5A/mV =
100A of output current.
5. Compare the amperes calculated in Step 4 with the digital
display of the meter while the switch is in the AMPS
position.
6. If the digital display is between ±2% ±2A than the amperes
calculated in Step 4, this procedure is completed.
7. If the rectifier drain indication is not as indicated in Step 6,
calibrate the CM3 card via its R15 potentiometer, as
specified in Section 7.
Table 6-D: Rectifier Controls for Meter Test On Line
Controls
Position/Status
Rectifier Power switch
On (up)
Rectifier must be connected to the battery.
Rectifier CB1 circuit breaker
On (up)
Plant control connector J5A (and J12, if
applicable) on control cable
Connected to P5A (and P12)
on CM4
Содержание Lineage 2000 J85503B-2
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