Power Systems The most commonly used material for insulators of overhead lines is PVC mica porcelain glass PVC mica porcelain glass ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3 - Φ, 33 kV oil circuit breaker is rated 1200 A, 2000 MVA, 3 s. The symmetrical breaking current is 104.8 kA. 35 kA. 3600 A. 1200 A. 104.8 kA. 35 kA. 3600 A. 1200 A. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of following materials can be used as coolant Any of above. Helium. CO2. Heavy water. Any of above. Helium. CO2. Heavy water. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The Gauss Seidel load flow method has following disadvantages. Which of the following statement is wrong? Unreliable convergence Slow convergence Choice of slack bus affects the convergence A good initial guess for voltages is essential for convergence Unreliable convergence Slow convergence Choice of slack bus affects the convergence A good initial guess for voltages is essential for convergence ANSWER DOWNLOAD EXAMIANS APP
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 H 2 mH 15.9 mH 15.9 H 2 H 2 mH 15.9 mH 15.9 H ANSWER DOWNLOAD EXAMIANS APP
Power Systems For a lossy transmission line, the characteristic impedance does not depend on The operating frequency of the line. The load terminating the line. The permittivity of the dielectric separating the conductor. The conductivity of conductors. The operating frequency of the line. The load terminating the line. The permittivity of the dielectric separating the conductor. The conductivity of conductors. ANSWER DOWNLOAD EXAMIANS APP
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