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Power Systems

Power Systems
A CT is connected in ___________________ with the line.

  across.
  both A and B.
  series.
  not connected.

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Power Systems
A transmission line has a reactance of 1 Pu is operating at Vs = Vr = 1 Pu. The generator is connected at source end which is delivering 0.5 Pu of active power and the transmission line is compensated with a series capacitance of 0.5 Pu. Find the load angle with series capacitance compensation ?

 29°
 10.5°
 14.5°
 35.5°

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Power Systems
An over current relay, having a current setting of 125% connected to a supply circuit through a current transformer of ratio 400/5. The pick up value is

 12.5 A
 15 A
 10 A
 6.25 A

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Power Systems
Plant capacity factor value is

 1
 less than 1
 0
 greater than 1

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Power Systems
A 4 bus power system consists of 4 transmission lines, then find the sparsity of Y bus matrix?

 0.25
 0.75
 0.5
 0.4

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Power Systems
Operating time of pumped storage plant is

 very high
 high
 can't say
 low

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