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Power Systems

Power Systems
Rating of fuse wire is expressed in

  Ampere.
  Watts.
 ÃŽÂ©.
  Mho.

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Power Systems
A thermal generating station has an installed capacity of 15 MW and supplies a daily load of 10 MW for 12 hours and 5 MW for remaining 12 hours. The plant capacity factor for the station is

 1
 0.5
 0.75
 0.6

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Power Systems
Which power plant cannot have single unit of 100 MW capacity

 Nuclear power plant.
  Diesel engine plant.
 Steam power plant.
 Hydro electric power plant.

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Power Systems
If in a line, resistance and reactance are found to be equal and regulation is zero, then load will have

 0.707 lagging power factor
 unity power factor
 0.707 leading power factor
 zero power factor

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Power Systems
MCB stands for

  maximum capacity breaker.
  molded circuit breaker.
  minimum capacity breaker.
  miniature circuit breaker.

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Power Systems
A fault occurring at the terminals of an unloaded synchronous generator operating at its rated voltage has resulted in the following values of currents and voltages. IR0 = j 2.37 pu IR1 = -j 3.05 pu IR2 = j 0.68 pu VR0 = VR1 = VR2 = 0.237 pu. Which of the following faults has occurred?

 LL
 LLG
 LLL
 LG

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