Power Systems Making and breaking currents of 3 phase AC circuit breakers in power system are respectively in what form? any of the above RMS and Instantaneous value Instantaneous and RMS value RMS and RMS value any of the above RMS and Instantaneous value Instantaneous and RMS value RMS and RMS value 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? LLG LG LLL LL LLG LG LLL LL ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which following statement are not true for line parameters R, L, G and C of transmission line Both R and G depend on the conductivity of conductor forming the line. G = 1/R where G is conductance of line. All of above. LC = μ ε and RG = σ ε. Both R and G depend on the conductivity of conductor forming the line. G = 1/R where G is conductance of line. All of above. LC = μ ε and RG = σ ε. ANSWER DOWNLOAD EXAMIANS APP
Power Systems For which one of the following types of motors, is the equal area criterion for stability applicable? DC shunt motor Three phase synchronous motor DC series motor Three phase induction motor DC shunt motor Three phase synchronous motor DC series motor Three phase induction motor ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which one of the following relays has the capability of anticipating the possible major fault in a transformer? Over current relay Over fluxing relay Buchholz relay Differential relay Over current relay Over fluxing relay Buchholz relay Differential relay ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is an impulse turbine Kaplan turbine. Francis turbine. None of above. Pelton turbine. Kaplan turbine. Francis turbine. None of above. Pelton turbine. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS