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Power Systems

Power Systems
For large plants of capacity for more than 15 MW, what type of cooling is used

  Water.
  Air.
  Liquid.
  Hydrogen.

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Power Systems
The main objectives of electrical power transmission is/are

 Voltage regulation of the transmission line must be zero or minimum
 Transmission system must be more efficient with minimum line losses
 both 1 and 2
 nether 1 nor 2

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Power Systems
Objectives of power system is/are

 Rated voltage and frequency has to be supplied to the consumers
 Cost of electrical energy per KWh is to be minimum
 nether 1 nor 2
 both 1 and 2

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Power Systems
The term self GMD is used to calculate

 inductance
 both 1 and 2
 capacitance
 resistance

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Power Systems
Plug setting of a relay can be altered by varying

 none of these.
 no. of ampere-turns.
 adjustable back up stop.
 air gap of magnetic path.

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Power Systems
Which of the following effects are associated with transmission line

All of these
 ferranti effect
 skin effect
 corona effect

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