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 = 3x²-3x+1 N = 3x²-2x+1 N = 3x²+3x+1 N = 3x²-6x+1 N = 3x²-3x+1 N = 3x²-2x+1 N = 3x²+3x+1 N = 3x²-6x+1 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has (2 + j4)Ω impedance, 100 MVA and base voltage is 10 KV. Find the per unit impedance value of transmission line? (1 + j2 ) pu (0.5 + j1 ) pu (4 + j8 ) pu (2 + j4 ) pu (1 + j2 ) pu (0.5 + j1 ) pu (4 + j8 ) pu (2 + j4 ) pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has impedance of (0.005 + j0.05) pu. Find the line at which maximum value of negative DC off set current is produced, if it is applied with Vm cosωt? 4.68 msec 1.47 msec 9.68 2.63 msec 4.68 msec 1.47 msec 9.68 2.63 msec ANSWER DOWNLOAD EXAMIANS APP
Power Systems To improve the efficiency of thermal power plant ________________ is placed between boiler and turbine. ash handling point. economizer. superheater. air preheater. ash handling point. economizer. superheater. air preheater. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statement is/are true?Zn The neutral grounding impedance Zn appears as Zn in zero sequence equivalent circuit both 1 and 2 The neutral grounding impedance Zn appears as 3Zn in zero sequence equivalent circuit nether 1 nor 2 The neutral grounding impedance Zn appears as Zn in zero sequence equivalent circuit both 1 and 2 The neutral grounding impedance Zn appears as 3Zn in zero sequence equivalent circuit nether 1 nor 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Generation of of one watt needs about ______________ fission per second 3.1. 3.1 × 107. 3.1 × 106. 3.1 × 1010. 3.1. 3.1 × 107. 3.1 × 106. 3.1 × 1010. ANSWER DOWNLOAD EXAMIANS APP
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