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Power Systems

Power Systems
The term self GMD is used to calculate

 inductance
 both 1 and 2
 capacitance
 resistance

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Power Systems
The insulation resistance of the 20 km long underground cable is 8 MΩ. Other things being same, the insulation resistance of 10 km long cable will be

 32 MΩ
 16 MΩ
 4 MΩ
 8 MΩ

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Power Systems
A transmission line has 50 km operating at frequency of 500 Hz. Find the type of the line?

 any of the above
 medium transmission line
 short transmission line
 long transmission line

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Power Systems
The insulation of the modern EHV lines is designed based on

  the switch voltage.
 corona.
 the lighting voltage.
 R × I.

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Power Systems
Telecommunication lines are transposed to reduce the

 efficiency
 voltage level
All of these
 radio interference in communication lines

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Power Systems
Which type of connection is employed for current transformers for the protection of star- delta connected 3-phase transformer?

 star-delta
 delta-star
 star-star
 delta-delta

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