The armature ground fault test circuit using traffic lights

Published:2012/9/19 2:35:00 Author:Ecco | Keyword: armature ground fault, test circuit , traffic lights | From:SeekIC

The armature is an important part of tributary electric motor and single-phase series motor, and its common faults include winding grounding, short circuit and reversed connection. These can be detected with a multimeter and megger. As shown in figure, it is a test schematic diagram with traffic light. When it is measured, the black stick of light is connected to the shaft ( ground ), red bar table is touched commutator segment. If the lamp H is not bright, it means that there is not a pathway between winding or commutator and shaft, no ground fault. If the light bulb is lit, it has existed ground fault and should be promptly repaired.



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