Power Systems What will be the ratio of the C.T. on the H.V side of a 3 - φ star / delta 33 / 11 kV transformer if the protecting CT on the LV side has a ratio of 300 : 5 ? 120 : 6 / √3. 200 : 5 / √3. 100 : 5 / √3. 150 : 4 / √3. 120 : 6 / √3. 200 : 5 / √3. 100 : 5 / √3. 150 : 4 / √3. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A load centre is at an equidistant from the two thermal generating stations G1 and G2. The fuel cost characteristics of the generating stations are given by F1 = a + bP1 + cP²1 F2 = a + b P2 + 2cP²2 Where P1 and P2 are the generation in MW of G1 and G2, respectively. For most economic generation to meet 300 MW of load, P1 and P2 respectively, are 175, 125 150, 150 100, 200 200, 100 175, 125 150, 150 100, 200 200, 100 ANSWER DOWNLOAD EXAMIANS APP
Power Systems How much KWh energy is produced by fission of 1 gm of uranium U235 24 kWh. 240 kWh. 2400 kWh. 24000 kWh. 24 kWh. 240 kWh. 2400 kWh. 24000 kWh. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The surge impedance of a 400 km long overhead transmission line is 420 Ω. For a 200 km length of the same line, the surge impedance will be 210 Ω 420 Ω 400 Ω 840 Ω 210 Ω 420 Ω 400 Ω 840 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems The rate of rise of restricting voltage depends upon the Capacitance of the system. Inductance of the system. Type of CB. Inductance and capacitance of the system. Capacitance of the system. Inductance of the system. Type of CB. Inductance and capacitance of the system. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 25 MVA, 11 kV alternator is supplying full load at a point of 0.75 lagging. Determine the percentage increase in earning capacity when it is operated at improved power factor of 0.96 lagging. 56 %. 28 %. 14 %. None of above 56 %. 28 %. 14 %. None of above ANSWER DOWNLOAD EXAMIANS APP
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