Power Systems
A 3 core cable gives on test a capacitance of 3.7 µF between two cores. Find the line charging current of the cable when it is connected to 11 kV, 50 Hz system?

 14.7 mA.
 1 A.
  14.76 A.
 1.476 A.

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Power Systems
Gross head of an hydroelectric power station is

 all of above.
 the height of water level in the river where the tail race is provided.
 the height of water level in the river where the storage is provided.
  the difference of water level between the level in storage and tail race.

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