Power Systems
Reactance relays are used for the protection of

 short transmission lines only
 medium transmission lines only
All of these
 long transmission lines only

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

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