DGVCL Exam Paper (11-12-2011)
It is difficult interrupt a capacitive current because

Current magnitude is very small
Stored energy in the capacitor is very high
It has a leading power factor
The restriking voltage can be high

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DGVCL Exam Paper (11-12-2011)
The advantage of slipring induction motor over the squirrel cage induction motor is

It is suitable for higher speeds
It can be started with the help of rotor resistances
It's power factor is higher
It has a higher efficiency

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