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How to Test a Electric Motor

Electrical motor is the fashionable utilized in business in each single place the arena.It essential tool to made manufacturing smoothly.To be sure that the electricalal motor situation is just right or now not,we should understand tips on how to trying out it.
The electrician or maintenance particular person should have this skill to decide the electrical motor situation,defected or can not use anymore.It can save the repair value and upkeep expenditure.

•     Check the appearance of motor.find any defect at body,cooling fan or shaft.
•     Try to swing manually the rotor shaft test the bearing condition.Check both it smooth rotating or now not.
•     Collect the motor data from motor NAME PLATE.It crucial to know about specs of motor prior to we trying out.
•     Ensure the terminal for power supply in good condition.Check the connection bar for terminal ( U,V,W ).What more or less connection for terminal.( STAR OR DELTA ).
•     Please ascertain first the facility supply VOLTAGE for electric motor.It single phase or three section sort.
•     Using the multimeter,check the continuity of winding from segment to phase ( U to V,V to W ,W to U ).Each section to segment should have a continuity if winding is OK.
•     Check the motor winding ohms studying the use of multimeter or ohmmeter for phase to phase terminal ( U to V,V to W ,W to U ).Reading for each and every phase should related inside one or two ohms deference.If no studying,maybe winding was once defect.
•     Check the insulation resistance of motor winding using Insulation checker meter on 500 Volt scale.First check from segment to segment  ( U to V,V to W ,W to U ) and 2d check from segment to earthing ( U to E,V to E ,W to E ).According to straightforward IEEE 43: IR check minimum value of the electrical motor is a 1 Mega Ohm ( 1 MΩ ) . It imply winding is in excellent condition.Refer my ultimate publish find out how to check motor the use of insulation take a seem ater meter.
•     After all step we perform and the testing result's OK,now we check in actual situation.Why we take a appear at it with energy supply?It is to be certain that no mechanical defect like bearing downside or unbalance rotor movement.
•     When motor is working,we should examine the AMPERE of motor using Clamp on meter.Refer to FLA at name plate of  motor.
•     If each step is completed,now we are able to come to a decision the situation of electrical motor either OK or NEED TO REPAIR.