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Power Systems

Power Systems
Operating time of pumped storage plant is

 high
 low
 can't say
 very high

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Power Systems
For load flow studies, What are the quantities specified at load bus are

 V and δ
 P and V
 P and Q
 δ and Q

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Power Systems
Under over excitation synchronous phase modifier works as

 any of the above
 shunt capacitor
 shunt reactor
 series capacitor

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Power Systems
Thermal shielding is provided to

 absorb the fast neutron.
 protected the operating personal from exposure to radiations.
 prevent the reactor wall from getting heated.
All of these

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Power Systems
How to find the total number of strands (N) when number of layers (x) are given

 Total number of strands N = 3x² + 3x - 1
 Total number of strands N = 3x² + 3x + 1
 Total number of strands N = 3x² - 3x - 1
 Total number of strands N = 3x² - 3x + 1

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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 the shunt reactor required for compensating ferranti effect?

 2000 Ω
 500 Ω
 1500 Ω
 3000 Ω

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