Power Systems The total number of strands(N) is concentrically stranded cable with total annular space filled with strands of uniform diameter is given by (if x is number of layers) N = 3x²-6x+1 N = 3x²-2x+1 N = 3x²+3x+1 N = 3x²-3x+1 N = 3x²-6x+1 N = 3x²-2x+1 N = 3x²+3x+1 N = 3x²-3x+1 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Capacitance voltage transformer ( CVT ) is used to improve the power factor of the transmission. none of these. connect instruments on the LT side. reduce losses in a transmission line. improve the power factor of the transmission. none of these. connect instruments on the LT side. reduce losses in a transmission line. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Mho relays are used for the protection of which of the following lines? short transmission lines only None of these medium transmission lines only long transmission lines only short transmission lines only None of these medium transmission lines only long transmission lines only ANSWER DOWNLOAD EXAMIANS APP
Power Systems The Gauss Seidel load flow method has following disadvantages. Which of the following statement is wrong? Unreliable convergence Choice of slack bus affects the convergence A good initial guess for voltages is essential for convergence Slow convergence Unreliable convergence Choice of slack bus affects the convergence A good initial guess for voltages is essential for convergence Slow convergence ANSWER DOWNLOAD EXAMIANS APP
Power Systems Buchholz relay is used for protection of none of these. transformer. bus bar. alternator. none of these. transformer. bus bar. alternator. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A power system consists of 300 buses out of which 20 buses are generator buses, 25 buses are the ones with reactive power support buses and 15 buses are ones with fixed shunt capacitors. All the other buses are load buses. It is proposed to perform a load flow analysis for the system using Newton-Raphson Jacobian matrix is 553×553 540×540 555×555 554×554 553×553 540×540 555×555 554×554 ANSWER DOWNLOAD EXAMIANS APP
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