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 38.6 35.45 31.7 23.9 38.6 35.45 31.7 23.9 ANSWER DOWNLOAD EXAMIANS APP
Power Systems In which of the following frequency control method tie line may be overloaded? flat frequency control parallel frequency flat tie line control All of these flat frequency control parallel frequency flat tie line control All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems The function of draft tube is reaction turbine is to all of above. reduce water hammer. increase flow rate of water. convert kinetic energy of water. all of above. reduce water hammer. increase flow rate of water. convert kinetic energy of water. ANSWER DOWNLOAD EXAMIANS APP
Power Systems For loss less line, find the ratio of length to the wave length of a signal for a phase shift of 0.05 radians? 2 × 10-3 7.95 × 10³ 8 × 10³ 7.95 × 10-3 2 × 10-3 7.95 × 10³ 8 × 10³ 7.95 × 10-3 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Suspension type insulators are used for voltage beyond 230 V 440 V 11 kV 33 kV 230 V 440 V 11 kV 33 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems A sort line with R/X ratio 1, the zero regulation is obtained when the power factor of the load is 0 leading 0.5 0.707 leading unity 0 leading 0.5 0.707 leading unity ANSWER DOWNLOAD EXAMIANS APP
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