Power Systems
Making and breaking currents of 3 phase AC circuit breakers in power system are respectively in what form?

 RMS and Instantaneous value
 any of the above
 RMS and RMS value
 Instantaneous and RMS value

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Power Systems
Which of the following statements is true? Corona loss increases with

 increase in conductor size and decrease in supply frequency
 decrease in conductor size and decrease in supply frequency
 increase in conductor size and increase in supply frequency
 decrease in conductor size and increase in supply frequency

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