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Power Systems

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

 V and δ
 P and Q
 P and V
 δ and Q

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Power Systems
Critical visual voltage is the voltage at which

 corona is visible with blue or violet colour
 both 1 and 2
 corona is just initiated
None of these

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Power Systems
The skin effect of conductor will increase when

All of these
 frequency decrease
 diameter decrease
 resistivity decrease

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Power Systems
Keeping in view the cost and overall effectiveness, the following circuit breaker is best suited for capacitor bank switching?

 Air blast CB.
  Vacuum CB.
 Oil CB.
 SF6 CB.

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Power Systems
Which of the following methods is/are used for reactive or voltage compensation

All of these
 shunt capacitor
 generation excitation control
 series capacitor

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Power Systems
A network containing 50 buses in which 10 are the voltage control buses, 6 are the generator buses. Find the size of the Jacobian matrix?

 33*33
 34*34
 83*83
 84*84

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