22-12-2012, 03:11 PM
LOAD TEST ON D.C. SERIES MOTOR
LOAD TEST ON D.C. SERIES MOTOR.docx (Size: 13.83 KB / Downloads: 23)
PROCEDURE
The connections are made as per the circuit diagram.
The DPST switch is closed.
The motor is started using two point starter.
The no load readings are noted.
Load on the brake drum is increased in steps.
At each step of loading all the meter readings are noted.
The procedure is repeated till the ammeter reads the rated current of the motor.
PRECAUTION
There should be some load on the brake drum while start and stop the experiment.
The brake drum should be cool down instantaneously by pouring the water on the brake drum.