Troubleshooting on the Main and Control Circuit of Three Phase Induction Motor

Technical personnel working in a factory or industry usually carry out repairs and maintenance of industrial motors and generators. This paper presents simplified and quick method of troubleshooting the main and control circuits of three phase induction motors in order to avoid delay during production period. This is achieved by examining the power quality, circuit components (interpretation of circuit diagram), insulation condition, rotor core and air gap by specific testing equipment for each fault zone for fault detection. Keywords: Troubleshooting, Main and Control Circuits, Power quality, Circuit components, Rotor core, Insulation condition, Air ga