Power Systems For large plants of capacity for more than 15 MW, what type of cooling is used Liquid. Hydrogen. Water. Air. Liquid. Hydrogen. Water. Air. ANSWER DOWNLOAD EXAMIANS APP
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 low alternator efficiency high energy loss in boilers low steam turbine mechanical efficiency high energy loss in condenser low alternator efficiency high energy loss in boilers low steam turbine mechanical efficiency high energy loss in condenser ANSWER DOWNLOAD EXAMIANS APP
Power Systems The modern trend in electric power generation none of above. to have large size thermal plant located near coal fields. to have large number of small size thermal plants located at different places. to have large size thermal plants near load centre. none of above. to have large size thermal plant located near coal fields. to have large number of small size thermal plants located at different places. to have large size thermal plants near load centre. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following quantities are to be calculated for generator bus? Q and δ δ and V P and V P and Q Q and δ δ and V P and V P and Q ANSWER DOWNLOAD EXAMIANS APP
Power Systems The neutral of 10 MVA, 11 kV alternator is earthed through a resistance of 5 ohms. The fault ready is set to operate at 0.75 A. The current transformers have a ratio of 1000/5. What is the percentage of the alternator winding is protected? 15% 88.2% 85% 11.8% 15% 88.2% 85% 11.8% ANSWER DOWNLOAD EXAMIANS APP
Power Systems A thermal protection relay provides protection against what? any of the above Temperature Over load Short circuit any of the above Temperature Over load Short circuit ANSWER DOWNLOAD EXAMIANS APP
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