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Power Systems

Power Systems
In a 4 bus,4×4 Y bus matrix the number of non zero elements are 12. Find the number of transmission lines?

 4
 2
 5
 8

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

 distance relays
 impedance relay
 offset mho relay
 reverse power relay

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Power Systems
When bundle conductor are used in place of single conductor the effective inductance and capacitance will respectively

 increase and decrease.
 decrease and remain unaffected.
 increase and remain unaffected.
  decrease and increase.

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Power Systems
Surge impedance loading can be increased by

 both 1 and 2
 increasing of capacitance value
 increasing of voltage level
 increasing of inductance value

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Power Systems
A transmission line has a reactance of 1 Pu is operating at Vs = Vr = 1 Pu. The generator is connected at source end which is delivering 0.5 Pu of active power. Find the load angle?

 30°
 35°
 45°
 60°

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Power Systems
The method of neutral grounding affects the

 zero sequence network
All of these
 positive sequence network
 negative sequence network

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