Power Systems The per unit impedance of a circuit element is 0.30. If the base kV and base MVA are halved, then the new value of the per unit impedance of the circuit element will be 0.0030 0.60 0.30 0.0060 0.0030 0.60 0.30 0.0060 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Due to proximity effect, the increase in conductor resistance is not negligible in All of these underground cable overhead transmission lines communication lines All of these underground cable overhead transmission lines communication lines ANSWER DOWNLOAD EXAMIANS APP
Power Systems For transmission line which one of the following relation is true? AD - BC = -1 AD - BC = 0 AD + BC = 0 AD - BC = 1 AD - BC = -1 AD - BC = 0 AD + BC = 0 AD - BC = 1 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line is compensated with shunt capacitance Csh. After shunt compensation surge impedance loading will increases None of these decreases remains unaffected increases None of these decreases remains unaffected ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 200 MVA alternator operated at no load at frequency of 50 Hz, it has inertia constant of 5 MWsec/MVA and governing system has a time delay of 0.6 sec. If the load of 50 MW is suddenly applied then find the frequency deviation during this time? 0.85 Hz -0.76 Hz 0.76 Hz -0.85 Hz 0.85 Hz -0.76 Hz 0.76 Hz -0.85 Hz ANSWER DOWNLOAD EXAMIANS APP
Power Systems An impulse turbine always operates submerged. operates by initial complete conversion to kinetic energy. is most suited for low head and high discharge power plants. makes use of a draft tube. always operates submerged. operates by initial complete conversion to kinetic energy. is most suited for low head and high discharge power plants. makes use of a draft tube. ANSWER DOWNLOAD EXAMIANS APP