Power Systems If the diameter of the conductor is increased no change in inductance and resistance the inductance is decreased the resistance is increased the inductance is increased no change in inductance and resistance the inductance is decreased the resistance is increased the inductance is increased 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 3.75 pu 7.25 pu 2.5 pu 4.28 pu 3.75 pu 7.25 pu 2.5 pu 4.28 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems A power station has a maximum demand of 15 MW. The plant capacity is 20 MW. Find the reserve capacity of the plant? 15 MW 5 MW 10 MW 20 MW 15 MW 5 MW 10 MW 20 MW ANSWER DOWNLOAD EXAMIANS APP
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? 4.68 msec 9.68 msec 2.63 msec 1.47 msec 4.68 msec 9.68 msec 2.63 msec 1.47 msec ANSWER DOWNLOAD EXAMIANS APP
Power Systems For some given transmission line the expression for voltage regulation is given by (Vs - Vr)/Vr *100%. Hence, this expression is true for any line this must be a short line this may either be a medium line or short line None of these this expression is true for any line this must be a short line this may either be a medium line or short line None of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems High capacity generators and motors are of any of the above delta connected network star connected with grounding network star connected network any of the above delta connected network star connected with grounding network star connected network ANSWER DOWNLOAD EXAMIANS APP
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