Power Systems The maximum efficiency of modern coal fired steam steam raising thermal power plants is restricted to about 0.35( a low value), mainly because of high energy loss in boilers low alternator efficiency high energy loss in condenser low steam turbine mechanical efficiency high energy loss in boilers low alternator efficiency high energy loss in condenser low steam turbine mechanical efficiency ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has surge impedance of 400 Ω, operating at Vs = Vr = 400 kV line is compensated with a shunt capacitance of 30%. The line is connected to a generator delivering 200 MW. Find the load angle with out and with compensation respectively? 45° and 26° 26° and 30° 30° and 45° 30° and 26° 45° and 26° 26° and 30° 30° and 45° 30° and 26° ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which type of connection is employed for current transformers for the protection of star- delta connected 3-phase transformer? delta-star delta-delta star-delta star-star delta-star delta-delta star-delta star-star ANSWER DOWNLOAD EXAMIANS APP
Power Systems The total number of strands in a ACSR conductor are 7, then find the layer number? 3 7 2 5 3 7 2 5 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3-phase breaker is rated at 2000 MVA, 33 kV, its making current will be 35 kVA. 70 kVA. 49 kVA. 89.22 kVA. 35 kVA. 70 kVA. 49 kVA. 89.22 kVA. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Reflection coefficient of voltage is Rv 2Zs/(Zs + Zl) (Zs - Zl)/(Zs + Zl) (Zl - Zs)/(Zs + Zl) 2Zl/(Zs + Zl) 2Zs/(Zs + Zl) (Zs - Zl)/(Zs + Zl) (Zl - Zs)/(Zs + Zl) 2Zl/(Zs + Zl) ANSWER DOWNLOAD EXAMIANS APP
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