How to Test Motor Run Capacitors - TibconCapacitors




Motor run capacitors provide high power to an electric motor and are designed to operate more continuous temperature. The run capacitor has a thin metal case and is oblong in shape. These capacitors are based on metalized polypropylene film (MPP Film Capacitor), it features self-healing properties.  At Tibcon, a motor run capacitor is typically employed on motors that are attached to blowers in air compressors and heating systems. Generally, two electrical connectors are connected to the top of the capacitor housing.

 

 These electrical connection points provide power to the internal working device which are isolated from the exterior metal case.  Connectors will attach to any testing meter that is used for the motor run capacitor to test.
Step 1: Remove all electrical power connections from the motor to shut off the pulling fuses or circuit breaker which supplies power to the electric motor.
Step 2: You can use needle-nose pliers to pull the electrical connectors from the motor run capacitor. After that, remove capacitor from the motor.


Step 3: Notice the outside of the housing capacitor. You can note down the data on the capacitor's label. Dispose of the motor run capacitor in the right process as per your local regulations. If the capacitor looks to be in proper physical shape, then go to the next step.

 


Step 4: The capacitor can keep on the flat work surface to be tested. Put volt ohmmeter into the "volt" position and insert the red lead into the connector on meter front side. You should connect black lead to the "common" connector on the meter.

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