Power Systems Length of short transmission line is up to 80 km any of the above 40 km 150 km 80 km any of the above 40 km 150 km ANSWER DOWNLOAD EXAMIANS APP
Power Systems Recovery voltage in CB is equal to none of these. normal frequency 50 Hz rms voltage. arcing period voltage. transient voltage. none of these. normal frequency 50 Hz rms voltage. arcing period voltage. transient voltage. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A fault occurring at the terminals of an unloaded synchronous generator operating at its rated voltage has resulted in the following values of currents and voltages. IR0 = j 2.37 pu IR1 = -j 3.05 pu IR2 = j 0.68 pu VR0 = VR1 = VR2 = 0.237 pu. Which of the following faults has occurred? LG LL LLL LLG LG LL LLL LLG ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which following statement are not true for line parameters R, L, G and C of transmission line G = 1/R where G is conductance of line. LC = μ ε and RG = σ ε. All of above. Both R and G depend on the conductivity of conductor forming the line. G = 1/R where G is conductance of line. LC = μ ε and RG = σ ε. All of above. Both R and G depend on the conductivity of conductor forming the line. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which cooling is preferred for large turbine generator Nitrogen cooling. None of these. Oxygen cooling. Hydrogen cooling. Nitrogen cooling. None of these. Oxygen cooling. Hydrogen cooling. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The inductance of single phase two wire line is given by 4×10-7× ln(r'/d) H/m 0.4×10-7× ln(d/r') H/m 0.4×10-7× ln(r'/d) H/m 4×10-7× ln(d/r') H/m 4×10-7× ln(r'/d) H/m 0.4×10-7× ln(d/r') H/m 0.4×10-7× ln(r'/d) H/m 4×10-7× ln(d/r') H/m ANSWER DOWNLOAD EXAMIANS APP
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