Which is of the following data is required to draw the circle diagram for an induction motor?
A. Block rotor test only
B. No load test only
C. Block rotor test and no-load test
D. Block rotor test, no-load test and stator resistance test
Answer: Option D
This Question Belongs to Electrical Engineering >> Polyphase Induction Motors
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Which is of the following data is required to draw the circle diagram for an induction motor?
A. Block rotor test only
B. No load test only
C. Block rotor test and no-load test
D. Block rotor test, no-load test and stator resistance test
The starting torque of a three phase induction motor can be increased by
A. Increasing slip
B. Increasing current
C. Both (A) and (B)
D. None of the above
Rotor rheostat control method of speed control is used for
A. Squirrel-cage induction motors only
B. Slip ring induction motors only
C. Both (A) and (B)
D. None of the above
The double squirrel cage induction motor is consists in two main parts. Rotor is consists of two cages. Which are known as outer cage and inner cage. outer cage has high resistance and low reactance ,inner cage has low resistance and high reactance.And stator is same as the single cage IM
Why stator resistance test is required?
No load and blocked rotor test are enough to draw a circle diagram for induction motor!