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Power Systems

Power Systems
In Francis turbine runner, the number blades is usually of the order of

  16 - 24.
 3 - 6.
 6 - 8.
 12 - 14.

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Power Systems
The insulator thickness on the conductor, in cables depends upon

 reactive power
 voltage
 power factor
 current

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Power Systems
A 3 - Φ, 33 kV oil circuit breaker is rated 1200 A, 2000 MVA, 3 s. The symmetrical breaking current is

 104.8 kA.
 3600 A.
  35 kA.
 1200 A.

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Power Systems
For n bus power system size of Y bus matrix is

 (n-1)×(n-1)
 (n-2)×(n-2)
 n×n
 (n-1)×(n-2)

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Power Systems
India’s largest thermal power station is located at

 Neyveli.
 Sarni.
 Kota.
 Chandrapur.

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Power Systems
Offset mho relay is used for the protection of equipment when

 either 1 or 2
 loss of excitation of the generator
None of these
 failure of prime mover of the generator

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