in this test their is a no load on dc shunt motor so it is an indirect test
because we cannot apply to series motor
no hands.. :D
test in lamp
It's called a 'sobriety test'
in this test their is a no load on dc shunt motor so it is an indirect test
the method can not be used in the case of a d.c series motor
because we cannot apply to series motor
no hands.. :D
No.it is not applicable for dc series motor at no load..at no load armature current is too small in dc series motor and we know that speed is inversly proportional to the armature current(speed=v/kI-Ir/k).Hence speed is dangerously high which is not efficient for Swimburne's test...
To test a motor, use a megger (megohm meter) to test the insulation of the internal motor windings. Select a voltage to apply to the motor using an output from the megger that is higher that the operating voltage that the motor operates on.
When you do a load test on a 3-phase induction motor you are checking the power factor, viz slip, and efficiency of the motor. You can test various loads with this test.
To do a motor solo run test you need to connect the motor to a power supply. Next, you observe the motor's vibration, temperature, and sounds.
test in lamp
dc motors can be operated at no load as well as at load condition.But by using the swin burns test the efficiency can be calculated at no load which is more benficial than load test.At industries this swin burns test is used because for load test we have to give separate supply for the load to run.In no load test that power is saved.
To do a motor solo run test you need to connect the motor to a power supply. Next, you observe the motor's vibration, temperature, and sounds.
What is a series of carefully planned steps that test a hypothesis?