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 A thermal power plant is being supplied with coal having much more ash content than that for which it was designed. Which of its following units needs major modifications Cooling tower. Ash handling unit. Pulversing unit. Condenser. Cooling tower. Ash handling unit. Pulversing unit. Condenser. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The function of a surge tank is to relieve water hammer pressure in the penstock. produce surge in the pipeline. none of above. supply water at constant pressure. relieve water hammer pressure in the penstock. produce surge in the pipeline. none of above. supply water at constant pressure. ANSWER DOWNLOAD EXAMIANS APP
Power Systems When a neutral point of 3 - Φ system is directly connected to earth then it has what type of grounding? Peterson coil. Solid. Reactance. Resistance. Peterson coil. Solid. Reactance. Resistance. 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 ? 150 : 4 / √3. 200 : 5 / √3. 120 : 6 / √3. 100 : 5 / √3. 150 : 4 / √3. 200 : 5 / √3. 120 : 6 / √3. 100 : 5 / √3. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A network containing 100 buses in which 10 are the voltage control buses, 5 are fixed shunt capacitor buses, 20 are the reactive power support buses, 6 are the generator buses. Find the size of the Jacobian matrix? 165 × 165 162 × 162 163 × 163 164 × 164 165 × 165 162 × 162 163 × 163 164 × 164 ANSWER DOWNLOAD EXAMIANS APP
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