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Power Systems

Power Systems
The value of inductance used for compensation of arcing grounds is

 1/3ω²C
 3ω²C
 ω²C/3
 3/ω²C

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Power Systems
The Y bus matrix of a 100 bus interconnected system is 90% sparse. Then find the number of non zero elements in the Y bus matrix?

 1000
 9000
 90
 10

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Power Systems
Differential relays does not used for which of the following faults?

 both 1 and 2
 faults within a transformer
 through faults
 faults within a generator

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Power Systems
Which of the following relationships are not valid for short transmission lines

 B = C = Z
 A = D = 1
All of these
 Is = Ir

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Power Systems
The method of neutral grounding affects the

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

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Power Systems
India’s largest thermal power station is located at

 Kota.
 Chandrapur.
 Neyveli.
 Sarni.

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