Power Systems A string type insulator has three units with self capacitance C and ground capacitance of 0.2 C having a string efficiency of 76% 78% 80% 82% 76% 78% 80% 82% ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3-phase, 110 kV coaxial XLPE insulated power cable delivering power at 50 Hz, has a capacitance of 125 nF/km. If the dielectric loss tangent of XLPE is 2*10^-4, then dielcetric power loss in this cable in W/km/phase is 23.9 38.6 35.45 31.7 23.9 38.6 35.45 31.7 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? (0.5 + j1 ) pu (1 + j2 ) pu (2 + j4 ) pu (4 + j8 ) pu (0.5 + j1 ) pu (1 + j2 ) pu (2 + j4 ) pu (4 + j8 ) 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? 9.68 2.63 msec 4.68 msec 1.47 msec 9.68 2.63 msec 4.68 msec 1.47 msec ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a 4*4 Y bus matrix the number of non zero elements are 12. Find the sparsity of the system? 0.25 1 0.5 0.75 0.25 1 0.5 0.75 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Pump storage schemes are used to improve the diversity factor. the power factor. the load factor. the plant capacity factor as well as the load factor of the power system. the diversity factor. the power factor. the load factor. the plant capacity factor as well as the load factor of the power system. ANSWER DOWNLOAD EXAMIANS APP
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