Power Systems Which following statement are not true for line parameters R, L, G and C of transmission line LC = μ ε and RG = σ ε. G = 1/R where G is conductance of line. Both R and G depend on the conductivity of conductor forming the line. All of above. LC = μ ε and RG = σ ε. G = 1/R where G is conductance of line. Both R and G depend on the conductivity of conductor forming the line. All of above. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 50 Hz, 17.32 kV generator is connected to a power system. The system reactance and capacitance per phase are 10 mH and 0.2 mF respectively. What is the maximum voltage across the contacts of the circuit breaker at an instant when it passes through zero? 29.28 kV 28.28 kV 31.28 kV 30.28 kV 29.28 kV 28.28 kV 31.28 kV 30.28 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems In nuclear power plants which material is/are used as coolant? graphite All of these liquid sodium beryllium graphite All of these liquid sodium beryllium ANSWER DOWNLOAD EXAMIANS APP
Power Systems Ferranti effect will not occur in which of the following transmission lines medium transmission lines long transmission lines short transmission lines All of these medium transmission lines long transmission lines short transmission lines All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems Differential relays does not used for which of the following faults? faults within a generator faults within a transformer through faults both 1 and 2 faults within a generator faults within a transformer through faults both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is/are the methods of improving transient stability? Fast acting excitation control Fast acting governing system Dynamic breaking All of these Fast acting excitation control Fast acting governing system Dynamic breaking All of these ANSWER DOWNLOAD EXAMIANS APP
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