Power Systems Mho relay is used for protection of short lines. none of these. medium lines. long lines. short lines. none of these. medium lines. long lines. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In which of the following given faults, all the sequence currents are equal? LL LLL LG LLG LL LLL LG LLG ANSWER DOWNLOAD EXAMIANS APP
Power Systems When bundle conductor are used in place of single conductor the effective inductance and capacitance will respectively decrease and remain unaffected. increase and decrease. increase and remain unaffected. decrease and increase. decrease and remain unaffected. increase and decrease. increase and remain unaffected. decrease and increase. 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% 86%% 50% 75% 90% 86%% 50% ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is/are the desirable properties of a insulator material? High ratio of puncture strength to flash over. High relative permittivity Both 1 and 2 Low ratio of puncture strength to flash over. High ratio of puncture strength to flash over. High relative permittivity Both 1 and 2 Low ratio of puncture strength to flash over. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of following materials can be used as coolant Heavy water. CO2. Any of above. Helium. Heavy water. CO2. Any of above. Helium. ANSWER DOWNLOAD EXAMIANS APP
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