Power Systems A transmission line is operating under no load has ABCD parameters B = 100∠90° has a phase shift of 0.2 rad, how much shunt reactor is required for compensation of ferranti effect? 2 mH 15.9 mH 2 H 15.9 H 2 mH 15.9 mH 2 H 15.9 H ANSWER DOWNLOAD EXAMIANS APP
Power Systems A buchholz relay is used for protection of a transformer against all external faults both 1 and 2 protection of a transformer against all internal faults nether 1 nor 2 protection of a transformer against all external faults both 1 and 2 protection of a transformer against all internal faults nether 1 nor 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which following statement are not true for line parameters R, L, G and C of transmission line All of above. Both R and G depend on the conductivity of conductor forming the line. LC = μ ε and RG = σ ε. G = 1/R where G is conductance of line. All of above. Both R and G depend on the conductivity of conductor forming the line. LC = μ ε and RG = σ ε. G = 1/R where G is conductance of line. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Zero voltage regulation is possible only for All of these unity power factor leading power factor lagging power factor All of these unity power factor leading power factor lagging power factor ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the percentage reactance of an element is 20 % and the full load current is 50 Amp, the short circuit current will be 200 Amp. 350 Amp. 250 Amp. 300 Amp. 200 Amp. 350 Amp. 250 Amp. 300 Amp. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following buses is/are not PV buses? fixed shunt capacitor buses both 1 and 2 voltage control buses reactive power support buses fixed shunt capacitor buses both 1 and 2 voltage control buses reactive power support buses ANSWER DOWNLOAD EXAMIANS APP
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