Power Systems A 20 MVA generator has inertia constant of 0.5 pu. Find new value for 50 MVA base? 0.4 pu 0.5 pu 0.1 pu 0.2 pu 0.4 pu 0.5 pu 0.1 pu 0.2 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Mercury is choice with steam in binary vapor cycle because relative low vaporization pressure. higher critical temperature and pressure. all of above. higher saturation temperature than other fluids. relative low vaporization pressure. higher critical temperature and pressure. all of above. higher saturation temperature than other fluids. 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 ? 120 : 6 / √3. 100 : 5 / √3. 200 : 5 / √3. 150 : 4 / √3. 120 : 6 / √3. 100 : 5 / √3. 200 : 5 / √3. 150 : 4 / √3. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The time taken by the turbine to fall to 0 rpm speed from 3000 rpm is called settling time. coasting time. damping time. stopping time. settling time. coasting time. damping time. stopping time. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The modern trend in electric power generation to have large size thermal plants near load centre. none of above. to have large number of small size thermal plants located at different places. to have large size thermal plant located near coal fields. to have large size thermal plants near load centre. none of above. to have large number of small size thermal plants located at different places. to have large size thermal plant located near coal fields. 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? Resistance. Peterson coil. Reactance. Solid. Resistance. Peterson coil. Reactance. Solid. ANSWER DOWNLOAD EXAMIANS APP
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