Power Systems Due to proximity effect, the increase in conductor resistance is not negligible in All of these overhead transmission lines underground cable communication lines All of these overhead transmission lines underground cable communication lines ANSWER DOWNLOAD EXAMIANS APP
Power Systems Advantages of per unit system is/are Need of transformation ratio No units for any quantity It has units for all quantities All of these Need of transformation ratio No units for any quantity It has units for all quantities All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems When reactance grounding is used in network, the voltage between neutral and ground is 3×IR0 × Xn both 1 and 3 IR0 × Xn IN × Xn 3×IR0 × Xn both 1 and 3 IR0 × Xn IN × Xn ANSWER DOWNLOAD EXAMIANS APP
Power Systems Buchholz relay is used for protection of alternator. none of these. transformer. bus bar. alternator. none of these. transformer. bus bar. ANSWER DOWNLOAD EXAMIANS APP
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 ? 100 : 5 / √3. 120 : 6 / √3. 150 : 4 / √3. 200 : 5 / √3. 100 : 5 / √3. 120 : 6 / √3. 150 : 4 / √3. 200 : 5 / √3. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A steam power generation has an overall efficiency of 20 %. 0.6 Kg of coal is burnt per kWh of electrical energy generated. Calculated the calorific value of fuel 7166.67 KCal / Kg. 7000 KCal / Kg. 7562 KCal / Kg. 7268.45 KCal / Kg. 7166.67 KCal / Kg. 7000 KCal / Kg. 7562 KCal / Kg. 7268.45 KCal / Kg. ANSWER DOWNLOAD EXAMIANS APP
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