Power Systems What is the preferred type of circuit breaker(CB) to be installed in extra high voltage AC system? Vacuum CB Air blast CB Sulphur hexafluoride CB Bulk oil type CB Vacuum CB Air blast CB Sulphur hexafluoride CB Bulk oil type CB ANSWER DOWNLOAD EXAMIANS APP
Power Systems MCB stands for maximum capacity breaker. molded circuit breaker. minimum capacity breaker. miniature circuit breaker. maximum capacity breaker. molded circuit breaker. minimum capacity breaker. miniature circuit breaker. ANSWER DOWNLOAD EXAMIANS APP
Power Systems If transmission line parameters A and B are 0.9∠0° and 200∠90° respectively. Find the shunt reactor required to compensate the ferranti effect? 750 Ω 2000 Ω 3000 Ω 1500 Ω 750 Ω 2000 Ω 3000 Ω 1500 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems Attenuation occurs due to conductance inductance both 1 and 3 resistance conductance inductance both 1 and 3 resistance ANSWER DOWNLOAD EXAMIANS APP
Power Systems The positive, negative and zero sequence per unit impedance of two generators connected in parallel are X1 = 0.12 pu, X2 = 0.096 pu and X0 = 0.036 pu. For LG fault at generator terminals (with 1 pu voltage) the positive sequence current will be 9.936 pu 8.936 pu 10.936 pu 7.936 pu 9.936 pu 8.936 pu 10.936 pu 7.936 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is/are advantages of N-R method? Applicable for large power system network both 1 and 2 Number of iterations are less Time taken for each iteration is less Applicable for large power system network both 1 and 2 Number of iterations are less Time taken for each iteration is less ANSWER DOWNLOAD EXAMIANS APP
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