Power Systems The value of inductance used for compensation of arcing grounds is ω²C/3 3ω²C 3/ω²C 1/3ω²C ω²C/3 3ω²C 3/ω²C 1/3ω²C ANSWER DOWNLOAD EXAMIANS APP
Power Systems The skin effect shows that current density is more at the surface of the condutor current density is more at the centre of the condutor current density is lower at the surface of the condutor the distribution of AC current is uniform through the cross section of the conductor current density is more at the surface of the condutor current density is more at the centre of the condutor current density is lower at the surface of the condutor the distribution of AC current is uniform through the cross section of the conductor ANSWER DOWNLOAD EXAMIANS APP
Power Systems Plug setting of a relay can be altered by varying air gap of magnetic path. none of these. no. of ampere-turns. adjustable back up stop. air gap of magnetic path. none of these. no. of ampere-turns. adjustable back up stop. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Consider a three phase, 50 Hz, 11 kV distribution system. Each of the conductors is suspended by an insulator string having two identical porcelain insulators. The self capacitance of the insulators is 5 times the shunt capacitance between the link and ground. Find the voltage across the two insulators V1 and V2? (V1 = Voltage of disc nearest to the conductor) V1 = 6 kV and V2 = 5 kV V1 = 2.89 kV and V2 = 3.46 kV V1 = 5 kV and V2 = 6 kV V1 = 3.46 kV and V2 = 2.89 kV V1 = 6 kV and V2 = 5 kV V1 = 2.89 kV and V2 = 3.46 kV V1 = 5 kV and V2 = 6 kV V1 = 3.46 kV and V2 = 2.89 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following materials is/are used as moderators? All of these graphite heavy water beryllium All of these graphite heavy water beryllium ANSWER DOWNLOAD EXAMIANS APP
Power Systems The voltage and current instantaneous values are given as 5 sin (ωt + 30°) pu and 2 sin (ωt - 15°) pu respectively. Find the per unit active power? 3.535 pu 5 pu 5.353 pu 7 pu 3.535 pu 5 pu 5.353 pu 7 pu ANSWER DOWNLOAD EXAMIANS APP
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