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Power Systems

Power Systems
Corona loss is ----------------- on hilly areas than as plain areas.

 remain same
 more
None of these
 less

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

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

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Power Systems
If the breakdown voltage of the insulator is high, the thickness of the insulator is

 it does not related to breakdown voltage
None of these
 less
 high

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Power Systems
The conversion ratio of a breeder reactor is

 less than unity.
  equal to unity.
 none of above.
  more than unity.

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Power Systems
A 3-phase transmission line operating at Vs = 400 kV and has ABCD parameters A= D = 0.8∠0°, B = 100∠°90 Ω, C = 0.5*10^-6∠90° â„§. Find Charging current under no load?

 0.512∠90° A/phase
 1.144∠90° A/phase
 0.344∠90° A/phase
 0.144∠90° A/phase

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Power Systems
The overall efficiency of a steam power plant equal to

 binary vapor cycle.
 the Rankine cycle.
 regenerative cycle.
  product of boiler efficiency, turbine efficiency and generator efficiency.

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