CMS utilizes Motor Circuit Analysis (de-energized) test methods to detect winding faults on 3 phase, single phase, and DC motors. This type of testing can be initiated from the Motor Control Center (MCC) or directly at the motor. The advantage to testing from the MCC is the entire motor system, including the connections and cables between the test point and the motor, is evaluated.

Our test instruments apply a low voltage, non-destructive AC signal through the motor windings and measure the response to these signals. Winding faults are indicated by variances in the response to the applied signal through the windings. These variances cause unbalances in the measured response to the applied signal. Therefore, when testing 3-phase equipment such as motors, generators, or transformers the response of each phase is compared to the other two. When testing single phase devices or DC motors then the winding is compared to itself or compared to a 

similar single phase device or DC motor.

 

View Case Studies below:

Case Study 1

Case Study 2

Case Study 3

For companies wishing to purchase a unit and move this testing service in-house, CMS is an authorized distributor for the ALL-TEST Pro line of testers. Classroom and field training can be provided to ensure all required personnel are comfortable utilizing the units. For more information on product models, please click here, or contact us at 1-888-359-3277.

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