Power Systems
Which of the following is/are advantages of N-R method?

 Time taken for each iteration is less
 Number of iterations are less
 Applicable for large power system network
 both 1 and 2

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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

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

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