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? 86%% 50% 90% 75% 86%% 50% 90% 75% ANSWER DOWNLOAD EXAMIANS APP
Power Systems An hydro-graph indicates the maximum and minimum run off during the period. the average run off during the period. All of these the discharge at any time during the period under consideration. the maximum and minimum run off during the period. the average run off during the period. All of these the discharge at any time during the period under consideration. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Pin insulators are used up to 33 kV any voltage level 11 kV 120 kV 33 kV any voltage level 11 kV 120 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following represents the transmission or reflection coefficient of voltage Tv? (Zl = Surge impedance of load, Zs = Surge impedance of line) (Zl - Zs)/(Zs + Zl) 2Zl/(Zs + Zl) 2Zs/(Zs + Zl) (Zs - Zl)/(Zs + Zl) (Zl - Zs)/(Zs + Zl) 2Zl/(Zs + Zl) 2Zs/(Zs + Zl) (Zs - Zl)/(Zs + Zl) ANSWER DOWNLOAD EXAMIANS APP
Power Systems Radio interference occur in telecommunication line due to nether 1 nor 2 electro static induction electro magnetic induction both 1 and 2 nether 1 nor 2 electro static induction electro magnetic induction both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Surge impedance loading of a 3-phase, 400 kV transmission line is 400 Ω. The surge impedance loading is 400 MW 1600 MW 800 MW 200 MW 400 MW 1600 MW 800 MW 200 MW ANSWER DOWNLOAD EXAMIANS APP
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