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Power Systems

Power Systems
Fault calculations using computer are usually done by

None of these
 Y bus method
 either 1 or 2
 Z bus method

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Power Systems
Hydro-graph is similar to

 mass curve.
  load curve.
 both B and C.
 energy load curve.

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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. If the load factor is 0.8. Find the reserve capacity of the station?

 10 MW
 18 MW
 5 MW
 9 MW

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Power Systems
Find the number of strands of ACSR conductor for 4 layer transmission line?

 1
 37
 29
 7

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Power Systems
Surge impedance loading of a transmission line can be increased by

 increasing its voltage level
 addition of lumped capacitance in series
 both 1 and 3
 addition of lumped inductance in parallel

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Power Systems
Which of the following transformer is used in sub station for operating a protective relay?

All of these
 distribution transformer
 auto transformer
 capacitor voltage transformer

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