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Power Systems

Power Systems
The Y bus matrix of 100 bus interconnected system is 90% sparse. Hence the number of transmission lines in the system must be

 250
 500
 450
 900

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Power Systems
For which one of the following types of motors, is the equal area criterion for stability applicable?

 DC series motor
 Three phase induction motor
 Three phase synchronous motor
 DC shunt motor

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

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

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Power Systems
Which one of following fuels is used by slow thermal nuclear reaction for power generation

 Pu239.
 U238.
  U235.
 Th232.

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Power Systems
In a 400 KV network, 360 KV is recorded at a 400 KV bus. The reactive power absorbed by shunt rated for 50 MVAr, 400 KV connected at the bus is

 45 MVAr.
 61.73 MVAr.
  40.5 MVAr.
 55.56 MVAr.

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Power Systems
Merze price current scheme protection is used in

  transformer.
  bus bars.
  alternator.
  both A and B.

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