Power Systems
The main objectives of power system is/are

All of these
 Reliable power has to be available
 Cost of electrical energy per KWh is to be minimum
 Flexible power has to be available.

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

 decrease in conductor size and increase in supply frequency
 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

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