Squirrel Cage Induction Motor Testing(LT/Part1)

Type Tests (as per IS 12615)
The following shall constitute type tests:
a)  Dimensions;
b) Measurement of resistance of windings of
stator;
c) No load test at rated voltage to determine input
current power and speed;
d) Reduced voltage running up test at no load
(for squirrel cage motors up to 37 kW only);
e) Locked rotor readings of voltage, current,
power input and torque at a suitable reduce
voltage;
f) Full load test to determine efficiency, power
factor and slip;
g) Temperature rise test;
h) Momentary overload test;
j) Insulation resistance test; and
k) High voltage test.

Optional Tests(as per IS 12615)

The optional tests shall be carried out as per the
mutual agreement between the manufacturer and the
purchaser. 

a) Test for vibration severity of motor;

b) Test for noise levels of motor;

c) Test for degree of protection by enclosure;

d) Temperature rise test at limiting values of

     voltage and frequency variation;

e) Over speed test; and

f) Test on insulation system.

               

Routine Tests(as per IS 12615)

The following shall constitute the routine tests:

a) Insulation resistance test;

b) Measurement of resistance of windings of

    stator;

c) No load test;

d) Locked rotor readings of voltage, current and

     power input at a suitable reduced voltage;

e) Reduced voltage running up test; and

f) High voltage test.

Routine Tests(as per IEC 60034-1)

The following shall constitute the routine tests:

a)Resistance of windings (cold);

b)No-load losses and current;

c)Direction of rotation;

d)Withstand voltage test;

 

Motor Consumes 85% of Industrial Power