GE MP100 Series, Руководство по обслуживанию

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Preventive maintenance
2026419-033E CIC Pro™ 10-9
1. Configure the leakage tester like the circuit shown below with GND switch
OPEN and polarity switch NORM .
2. Connect probe to an unpainted, non-anodized chassis ground on the unit under
test.
3. Set the power switch of the device to ON .
4. Read the current leakage indicated on DMM.
NOTE
Center-tapped and non-center-tapped supply circuits produce different
leakage currents and the UL and IEC limits are different.
5. Set the polarity switch to RVS .
6. Read the current leakage indicated on DMM.
NOTE
If either reading is greater than the appropriate specification below, the
device under test fails. Contact GE Technical Support.
 300 µA (0.3 volts on the DMM), and the device under test is powered from
100-120 V/50-60 Hz

300 µA (0.3 volts on the DMM), and the device under test is powered from a
centered-tapped 200-240 V/50-60 Hz, single-phase circuit
 500 µA (0.5 volts on the DMM), and the device under test is powered from a
non-center-tapped, 200-240 V/50-60 Hz, single-phase circuit
7. Set the GND switch on the leakage tester to CLOSED .
8. Read the current leakage indicated on DMM.
9. Set the polarity switch to RVS .
10. Read the current leakage indicated on DMM.
100 µA (0.1 volts on the DMM), and the device under test is powered from 100-
240 V/50-60 Hz
Power Cord
Leakage Tester
NORM
RVS
HIGH
LOW
GND
1K
0.015µF
Power Cord
Device
Under
Test
DMM set to measure AC voltage
GND
DMM
Closed
Open
Probe to exposed conductive chassis
10K