Power Systems Which of the following statements is true? Corona loss increases with increase in conductor size and increase in supply frequency decrease in conductor size and increase in supply frequency decrease in conductor size and decrease in supply frequency increase in conductor size and decrease in supply frequency increase in conductor size and increase in supply frequency decrease in conductor size and increase in supply frequency decrease in conductor size and decrease in supply frequency increase in conductor size and decrease in supply frequency ANSWER DOWNLOAD EXAMIANS APP
Power Systems Earthing switch is used for protection of equipment from ground faults discharging residual energies All of these measuring of safety voltage protection of equipment from ground faults discharging residual energies All of these measuring of safety voltage ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which power plant cannot have single unit of 100 MW capacity Hydro electric power plant. Nuclear power plant. Diesel engine plant. Steam power plant. Hydro electric power plant. Nuclear power plant. Diesel engine plant. Steam power plant. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A guard ring is used in string type insulator having 3 units to improve string efficiency. Find the capacitance of metal link 2 if pin to earth capacitance of each unit is 1 F? 0.5 F 1 F 2 F 4 F 0.5 F 1 F 2 F 4 F ANSWER DOWNLOAD EXAMIANS APP
Power Systems The positive, negative and zero sequence per unit impedance of two generators connected in parallel are X1 = 0.12 pu, X2 = 0.096 pu and X0 = 0.036 pu. For LG fault at generator terminals (with 1 pu voltage) the positive sequence current will be 7.936 pu 9.936 pu 8.936 pu 10.936 pu 7.936 pu 9.936 pu 8.936 pu 10.936 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems A network containing 100 buses in which 10 are the voltage control buses, 5 are fixed shunt capacitor buses, 20 are the reactive power support buses, 6 are the generator buses. Find the size of the Jacobian matrix? 164 × 164 163 × 163 165 × 165 162 × 162 164 × 164 163 × 163 165 × 165 162 × 162 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS