Power Systems
A transmission line has impedance of (0.005 + j0.05) pu. Find the line at which maximum value of negative DC off set current is produced, if it is applied with Vm cosωt?

 4.68 msec
 2.63 msec
 1.47 msec
 9.68

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Power Systems
Which of the following statement is/are true?Zn

 The neutral grounding impedance Zn appears as 3Zn in zero sequence equivalent circuit
 nether 1 nor 2
 The neutral grounding impedance Zn appears as Zn in zero sequence equivalent circuit
 both 1 and 2

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