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Power Systems

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

 voltage
 reactive power
 current
 power factor

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Power Systems
String chart is drawn between

 nether 1 nor 2
 both 1 and 2
 T on Y-axis and S and T on on X-axis
 temperature (T) on X- axis, sag(S) and tension (T) on Y-axis

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Power Systems
Which of the following method is/are more reliable?

 Fast Decoupled Load Flow (FDLF) method
 Newton Raphson (NR) method
All of these
 Gauss-Siedel (GS) method

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Power Systems
Two generating stations delivering a powers of P1 = 150 MW, P2 =100 MW and the B coefficients are B11 = 0.005, B22 = 0.002, B12=B21= -0.001. Find the transmission line losses?

 102.5
 85.5
 105.2
 95.5

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Power Systems
Under excited Synchronous phase modifier works as

 series capacitor
 shunt capacitor
 shunt reactor
 any of the above

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Power Systems
Area under the daily curve divided by 24 gives

 maximum demand
 average load
 units generated
 maximum load

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