Gritzner 1002 - Simulated Leakage Current Tests on Motor Assemblies; Measures Required in Case of Incorrect Readings

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34. Simulated leakage current tests on motor assemblies with ABB Metrawatt 5013
V) Simulated leakage current tests on motor assemblies
● When replacing the whole motor or motor parts respectively (field, armature or capacitor),
the simulated leakage current of the motor must be tested before the motor is reinstalled.
● Set the testing range switch at “20 mA” (fig. 37).
● Connect both probe leads to the shaft and wire eyelets.
● Meter reading: 0.75 mA maximum
35. Measures required in case of incorrect readings
re I: If one of the 4 test functions is a failure, the grounded electrical outlet is defective.
Take necessary steps to repair the electrical outlet.
re II: If the current consumption deviates considerably from the indicated value,
even though the machine does not bind, the motor is defective and must be exchanged
or repaired.
re III: If the insulation resistance drops below the required value, the defective components must be
found by systematic checking and must be repaired or replaced.
re IV: The components with inadmissably high leakage current must also be found
by systematic checking and must be repaired.
re V: Return the motor to the factory.
PFAFF GmbH
76227 Karlsruhe, April 2002
PFAFF/HTS