Power Systems Surge impedance loading of a line is increased by which of the following compensation methods? both 1 and 2 shunt capacitor shunt reactor series capacitor both 1 and 2 shunt capacitor shunt reactor series capacitor 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 = 2.89 kV and V2 = 3.46 kV V1 = 6 kV and V2 = 5 kV V1 = 3.46 kV and V2 = 2.89 kV V1 = 5 kV and V2 = 6 kV V1 = 2.89 kV and V2 = 3.46 kV V1 = 6 kV and V2 = 5 kV V1 = 3.46 kV and V2 = 2.89 kV V1 = 5 kV and V2 = 6 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems Critical disruptive voltage is a voltage at which both 1 and 2 corona is just initiated corona is visible with blue or violet colour nether 1 nor 2 both 1 and 2 corona is just initiated corona is visible with blue or violet colour nether 1 nor 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems What are the tests performed for oil-filled and gas-filled cables ? Thermal stability test. Load cycle tests. Impulse tests. All of these. Thermal stability test. Load cycle tests. Impulse tests. All of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems What will be the thermal efficiency of a 240 V, 1000 W electric kettle if it brings 2 liters of water at 15° C to boiling point 15 Minutes 80.25 %. 78.96 %. 74.56 %. 79.33 %. 80.25 %. 78.96 %. 74.56 %. 79.33 %. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Two insulator discs of identical capacitance value C make up a string for a 22 kV, 50 Hz, single phase overhead line insulation system. If pin to earth capacitance is also C, then find the string efficiency? 75% 90% 50% 86%% 75% 90% 50% 86%% ANSWER DOWNLOAD EXAMIANS APP
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