Power Systems
Surge impedance loading of a line is increased by which of the following compensation methods?

 shunt reactor
 series capacitor
 both 1 and 2
 shunt capacitor

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Power Systems
Which of the following statements is/are true? The elements of each row of a Y bus matrix for load flow studies in power system add up to zero

 always
 if the mutual couplings between transmission lines are absent
 if both 2 and 3 are satisfied
 if the shunt admittances at the buses are ignored

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