Power Systems A 3 layer, total diameter of an ACSR conductor is 5 cm. Find the diameter of each strand? 1 cm 15 cm 5 cm 1.5 cm 1 cm 15 cm 5 cm 1.5 cm ANSWER DOWNLOAD EXAMIANS APP
Power Systems Lightning arresters are used to protect electrical equipment against power frequency of over voltages. over voltages due to indirect lightning stroke. direct strokes of lightning. over currents due to lightning stroke. power frequency of over voltages. over voltages due to indirect lightning stroke. direct strokes of lightning. over currents due to lightning stroke. ANSWER DOWNLOAD EXAMIANS APP
Power Systems If we increase the spacing between the phase conductors, the line capacitance None of these remains unaffected decreases increases None of these remains unaffected decreases increases ANSWER DOWNLOAD EXAMIANS APP
Power Systems To reduce the radio interference which line is/are transposed? None of these Power line either 1 or 2 Both power and telecommunication lines None of these Power line either 1 or 2 Both power and telecommunication lines ANSWER DOWNLOAD EXAMIANS APP
Power Systems A string insulator has 4 units. The voltage across the bottom most unit is 33.33% of total voltage. Its string efficiency is 33.33% 66.66% 75% 25% 33.33% 66.66% 75% 25% ANSWER DOWNLOAD EXAMIANS APP
Power Systems The line currents of 3-phase supply are: IR = 3 + j 5 A IY =2 + j 2 A IB = -2 - j 1 A The zero sequence current will be 5 + j 7 A -2 - j 1 A 1 + j 4 A 1 + j 2 A 5 + j 7 A -2 - j 1 A 1 + j 4 A 1 + j 2 A ANSWER DOWNLOAD EXAMIANS APP
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