Power Systems For complete protection of 3-phase system from the short circuit faults minimum number of relays required are two one three six two one three six ANSWER DOWNLOAD EXAMIANS APP
Power Systems Mho relay is used for protection of long lines. medium lines. short lines. none of these. long lines. medium lines. short lines. none of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following power plants can generate power at unpredictable or uncontrollable time Cooling tower. Wind turbine. Condenser. Pulverising unit. Cooling tower. Wind turbine. Condenser. Pulverising unit. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3-phase, 110 kV coaxial XLPE insulated power cable delivering power at 50 Hz, has a capacitance of 125 nF/km. If the dielectric loss tangent of XLPE is 2*10^-4, then dielcetric power loss in this cable in W/km/phase is 23.9 35.45 31.7 38.6 23.9 35.45 31.7 38.6 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The inertia constant of 100 MVA, 50 Hz, 4 pole generator is 10 MJ/MVA. If the mechanical input to the machine is suddenly raised from 50 MW to 75 MW, the rotor acceleration will be equal to 225 electrical degrees/s² 125 electrical degrees/s² 12.5 electrical degrees/s² 22.5 electrical degrees/s² 225 electrical degrees/s² 125 electrical degrees/s² 12.5 electrical degrees/s² 22.5 electrical degrees/s² ANSWER DOWNLOAD EXAMIANS APP
Power Systems The rating of fuse wire is always expressed in kWh. ampere-volts. amperes. ampere-hours. kWh. ampere-volts. amperes. ampere-hours. ANSWER DOWNLOAD EXAMIANS APP
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