Universal motor

A universal motor is a special type of motor that can operate on AC as well as DC supply. Universal motors have a high starting torque and can operate at high speeds. They are light weight and compact. Hence, they are used in household appliances such as washing machines, hair dryers, blenders, vacuum cleaners, and also in handheld power tools such as drilling machines, electrical saws, sanders, etc. Universal motors are also used in traction applications in railways and as starter motors in IC engines.

A motor can malfunction on-site due to inherent defects that may increase the downtime, energy consumption, and operational costs. Testing motors help the manufacturer to determine that the manufactured motors conform to the specified performance parameters and are free from any manufacturing defects. Depending on the motor type, a vast suite of tests is available right from torque-speed characteristics to voltage, current, and power measurements.

Crest manufactures a full range of motor test benches for OEMs for ensuring the quality of the product before delivery. Test systems are available for in-process quality assurance and for end-of-line testing of a fully manufactured motor.  The required AC and DC drives are also available for comprehensively testing the universal motor.

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