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Power Systems

Power Systems
Pumped storage plant is a

 both 1 and 2
None of these
 base load plant
 peak load plant

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Power Systems
In a 400 KV network, 360 KV is recorded at a 400 KV bus. The reactive power absorbed by shunt rated for 50 MVAr, 400 KV connected at the bus is

 61.73 MVAr.
 45 MVAr.
 55.56 MVAr.
  40.5 MVAr.

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Power Systems
A 200 MVA alternator operated at no load at frequency of 50 Hz, it has inertia constant of 5 MWsec/MVA and governing system has a time delay of 0.6 sec. If the load of 50 MW is suddenly applied then find the frequency deviation during this time?

 0.76 Hz
 0.85 Hz
 -0.85 Hz
 -0.76 Hz

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Power Systems
Which of the following grounding is not practically preferred for protection of equipments?

 isolated grounding
 resistance grounding
All of these
 reactance grounding

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Power Systems
Find the relation between sub transient (X"), transient (X') and synchronous reactance (X) ?

 X" < X' < X
 X" > X' >X
 X" < X' > X
 X" > X' < X

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Power Systems
To reduce the radio interference which line is/are transposed?

 either 1 or 2
 Both power and telecommunication lines
None of these
 Power line

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