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Q. |
The great advantage of the double squirrel-cage induction motor over single cage rotor is that its |
A. | efficiency is higher |
B. | power factor is higher |
C. | slip is larger |
D. | starting current is lower |
Answer» D. starting current is lower | |
Explanation: the outer cage has higher resistance and low reactance while vice versa for the inner cage. so at starting the current is confined to outer cage with the reduction in starting current improving the torque. |
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