Power Systems Which of the following grounding is not practically preferred for protection of equipments? All of these reactance grounding resistance grounding isolated grounding All of these reactance grounding resistance grounding isolated grounding ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the breakdown voltage of the insulator is high, the thickness of the insulator is it does not related to breakdown voltage None of these high less it does not related to breakdown voltage None of these high less ANSWER DOWNLOAD EXAMIANS APP
Power Systems Sum of the elements of row i equal to shunt admittances connected to bus i. If this summation is zero, indicates there is no mutual coupling shunt admittance both 1 and 2 None of these mutual coupling shunt admittance both 1 and 2 None of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems A hydraulic turbine having rated speed of 250 rpm is connected to a synchronous generator. In order to produce power at 50 Hz, the numbers of pole are required in the generator 24. 12. 16. 6. 24. 12. 16. 6. ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the inertia constant H = 8 MJ/MVA for a 50 MVA generator, the stored energy is 50 MJ 400 MJ 200 MJ 8 MJ 50 MJ 400 MJ 200 MJ 8 MJ ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which statement is not correct for the transmission line parameter R, L, G and C At high frequencies at which most of communication system operate the internal inductance of the conductor is neglected. G = I/R. R is the AC resistance per unit length of conductor C. For each line, the conductors are characterized by σ c, μ c, εo = ε c and the homog The line parameter R,L,G and C are uniformly distributed along the entire length of the line C. At high frequencies at which most of communication system operate the internal inductance of the conductor is neglected. G = I/R. R is the AC resistance per unit length of conductor C. For each line, the conductors are characterized by σ c, μ c, εo = ε c and the homog The line parameter R,L,G and C are uniformly distributed along the entire length of the line C. ANSWER DOWNLOAD EXAMIANS APP
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