Answer / k.prakashchandra

You mean 'grading capacitor'?They are basically for equally
distributing the voltage across the interrupters in SF6
live-tank multi-unit circuit breaker of above 420 KV class.

what is the potential difference between line and earth?

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A 15 kw squirrel cage motor having a maximum efficiency of 90% on a continuous full load has temperature rise of 42 degrees celcius after 30 min and 52 degrees celcius after 1 hr under the above operation conditions. a) calculate its final steady state temperature rise on continuous load and the heating time constatnt. b) if the motor is operated on a short load for 9 min estimate its temperature rise. c) calculate the maximum overload that can be applied on a short, 9 min rating so that the temperature rise is the same as the final steady state temperature rise on continuous load.

0 Answers  

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why we still use sinusoidal waveforms for transmission and utilisation (we know generation is sinusoidal), instead of other ac waveforms such as triangle, sawtooth, square etc.,? is there any mathematical derivations to prove sinusoidal is efficient than others?

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Pl.brief me any electrical major fault you have rectified.

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who many types of fire explane with exmple

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