Power Systems
The positive, negative and zero sequence per unit impedance of two generators connected in parallel are X1 = 0.12 pu, X2 = 0.096 pu and X0 = 0.036 pu. For LG fault at generator terminals (with 1 pu voltage) the positive sequence current will be

 7.936 pu
 10.936 pu
 9.936 pu
 8.936 pu

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
In coal fired thermal power stations, what are the electrostatic precipitators used for?

 To keep the air heaters clean
 To collect the dust particles from the flue gases
 To remove dust particles setting on the bus bar conductors in the station switch yard
All of these

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Power Systems