Power Systems
A 1-phase transmission line has an impedance (4 + 3j ) Ω. Find the power factor of the load for zero voltage regulation?

 0.6 lead
 0.8 lag
 0.8 lead
 0.6 lag

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Power Systems
Advantages of shunt compensation is/are

 It requires less maintanance
 single unit can be used as both capacitance and inductor by adjusting the excitation
All of these
 smooth voltage regulation is possible by controlling excitation

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