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Power Systems

Power Systems
Surge tank is kept very close to the

 spill way
 generator
 turbine
 pen stock

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Power Systems
The conductor carries more current on surface as compared to core. This is called as

 corona effect
 skin effect
All of these
 unsymmetrical fault

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Power Systems
Ferranti effect will not occur in which of the following transmission lines

 short transmission lines
 medium transmission lines
 long transmission lines
All of these

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

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

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Power Systems
When a neutral point of 3 - Φ system is directly connected to earth then it has what type of grounding?

  Resistance.
  Reactance.
  Solid.
  Peterson coil.

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Power Systems
In case of failure of prime mover of the generator, which type of relay is used?

 distance relays
 reverse power relay
 offset mho relay
 impedance relay

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