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Power Systems

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

 Chandrapur.
 Kota.
 Sarni.
 Neyveli.

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Power Systems
Operator "a" rotates a vector

 nether 1 nor 2
 anti clock wise direction
 either 1 or 2
 clock wise direction

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Power Systems
The inertia constant of 100 MVA, 50 Hz, 4 pole generator is 10 MJ/MVA. If the mechanical input to the machine is suddenly raised from 50 MW to 75 MW, the rotor acceleration will be equal to

 12.5 electrical degrees/s²
 225 electrical degrees/s²
 125 electrical degrees/s²
 22.5 electrical degrees/s²

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Power Systems
If a 500 MVA, 11 kV 3-phase generator at 50 Hz feeds through a transfer impedance of (0+j0.605) Ω/phase, an infinite voltage also at 11 kV, then the maximum steady state power transfer on the base of 500 MVA and 11 kV is

 1 pu
 0.5 pu
 0.4 pu
 0.8 pu

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Power Systems
The angular moment of 10 MVA generator is 0.2. Find the new value of angular moment for 20 MVA base?

 0.4 pu
 0.25 pu
 0.1 pu
 0.2 pu

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Power Systems
A CT is connected in ___________________ with the line.

  across.
  series.
  not connected.
  both A and B.

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