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Power Systems

Power Systems
Pin insulators are used up to

 33 kV
 120 kV
 any voltage level
 11 kV

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Power Systems
In hydro power stations what is an enlarged body of water just above the intake and used as a regulating reservoir called

 Penstock.
 Spillways.
 Reservoir.
  Fore bay.

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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

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

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Power Systems
Which of the following is/are the effects of corona

 charging current increases
All of these
 interference decreases
 power loss decreases

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Power Systems
Switchgear equipment include

  all of these.
  relays and CB.
  fuses.
  switches.

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Power Systems
In triangular configuration, inductance and capacitance values are ------ and ------ respectively

 higher, less
 less, higher
 higher, higher
 less, less

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