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Power Systems

Power Systems
Length of short transmission line is up to

 40 km
 any of the above
 150 km
 80 km

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Power Systems
Surge impedance loading can be increased by

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

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Power Systems
When reactance grounding is used in network, the voltage between neutral and ground is

 3×IR0 × Xn
 IN × Xn
 both 1 and 3
 IR0 × Xn

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

 3ω²C
 ω²C/3
 3/ω²C
 1/3ω²C

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Power Systems
A transmission line has a surge impedance of 400 Ω is connected with the cable having surge impedance of 40 Ω, a surge magnitude of 100 kV is travelling from the transmission line towards the cable. Find the incident current?

 200 A
 2500 A
 100 A
 250 A

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Power Systems
Isolator in sub station is open under ------------- condition?

 short circuit
 full load
 no load
 any of the above

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