Power Systems Maximum efficiency of modern coal fired steam raising thermal power plants is restricted to about 035 (a low value), mainly because of low alternative efficiency. low steam turbine mechanical efficiency. high energy loss in boiler. high energy loss from turbine exhaust to condenser. low alternative efficiency. low steam turbine mechanical efficiency. high energy loss in boiler. high energy loss from turbine exhaust to condenser. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a two plant system, the load is connected to plant number 2. The loss coefficients are B11,B22,B12 are non zeros B11,B22 are non zero,B12 = 0 B11,B12 are non zero ,B22 = 0 B11 is non zero,B22 = B12 = 0 B11,B22,B12 are non zeros B11,B22 are non zero,B12 = 0 B11,B12 are non zero ,B22 = 0 B11 is non zero,B22 = B12 = 0 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The voltage and current instantaneous values are given as 5 sin (ωt + 30°) pu and 2 sin (ωt - 15°) pu respectively. Find the per unit active power? 7 pu 5 pu 3.535 pu 5.353 pu 7 pu 5 pu 3.535 pu 5.353 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems The insulation of modern EHV is designed based on switching voltage. lightning voltage. RI. corona. switching voltage. lightning voltage. RI. corona. ANSWER DOWNLOAD EXAMIANS APP
Power Systems For accurate load flow calculations on large power systems, the best method is N-R method All of these G-S method Decoupled method N-R method All of these G-S method Decoupled method 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 ? 200 : 5 / √3. 120 : 6 / √3. 150 : 4 / √3. 100 : 5 / √3. 200 : 5 / √3. 120 : 6 / √3. 150 : 4 / √3. 100 : 5 / √3. ANSWER DOWNLOAD EXAMIANS APP
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