Power Systems A sodium graphite reactors use a mixture of sodium and graphite as coolant. a mixture of sodium and graphite as moderator. sodium as moderator and graphite as coolant. sodium as coolant and graphite as moderator. a mixture of sodium and graphite as coolant. a mixture of sodium and graphite as moderator. sodium as moderator and graphite as coolant. sodium as coolant and graphite as moderator. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The sequence components of the fault current are as follows : Ipositive = j1.5 pu, Inegative = − j0.5 pu, Izero = − j pu Which fault is this? LLLG. LLG. LG. LL. LLLG. LLG. LG. LL. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The ground capacitance existing between transmission line and ground is 4µF. Find the inductive reactance of the peterson coil for compensation of arcing grounds? 625.35 Ω 0.844 Ω 855.26 Ω 265.25 Ω 625.35 Ω 0.844 Ω 855.26 Ω 265.25 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems A string type insulator has three units with self capacitance C and ground capacitance of 0.2 C having a string efficiency of 80% 78% 82% 76% 80% 78% 82% 76% ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line is compensated with shunt capacitance Csh. If the uncompensated transmission line surge impedance is Zs, then find the new surge impedance Zn after shunt compensation? Zs/√(1 + Kcsh) All of these √(1 + Kcsh)/Zs Zs*√(1 + Kcsh) Zs/√(1 + Kcsh) All of these √(1 + Kcsh)/Zs Zs*√(1 + Kcsh) ANSWER DOWNLOAD EXAMIANS APP
Power Systems Two identical synchronous machines having same inertia constant are connected in parallel and swinging together. The effective inertia constant is 4 MJ/MVA. Then each machine has inertia constant of 16 MJ/MVA 2 MJ/MVA 8 MJ/MVA 4 MJ/MVA 16 MJ/MVA 2 MJ/MVA 8 MJ/MVA 4 MJ/MVA ANSWER DOWNLOAD EXAMIANS APP
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