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 sinωt? 1.47 msec 9.68 msec 4.68 msec 2.63 msec 1.47 msec 9.68 msec 4.68 msec 2.63 msec ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statement is/are true regarding infinite line? It has infinite length It maintains the constant voltage both 2 and 3 It has infinite voltage It has infinite length It maintains the constant voltage both 2 and 3 It has infinite voltage ANSWER DOWNLOAD EXAMIANS APP
Power Systems To prevent maloperation of deferentially connected relay while energizing a transformer, the relay restraining coil is biased with 3rd harmonic current. 7th harmonic current. 5th harmonic current. 2nd harmonic current. 3rd harmonic current. 7th harmonic current. 5th harmonic current. 2nd harmonic current. ANSWER DOWNLOAD EXAMIANS APP
Power Systems For head and low discharge the water turbine used Kaplan wheel. propeller turbine. Francis turbine. Pelton wheel. Kaplan wheel. propeller turbine. Francis turbine. Pelton wheel. ANSWER DOWNLOAD EXAMIANS APP
Power Systems An unloaded generator with a pre-fault voltage 1 pu has the following sequence impedance: Z0 = j 0.15 pu, Z1 = Z2 = j 0.25 pu The neutral is grounded with a reactance of 0.05 pu. The fault current in pu for single line to ground fault is 4.28 pu 7.25 pu 2.5 pu 3.75 pu 4.28 pu 7.25 pu 2.5 pu 3.75 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the frequency is increased, then skin effect will decreases remains unaffected increases any of the above decreases remains unaffected increases any of the above ANSWER DOWNLOAD EXAMIANS APP
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