Power Systems The sequence components of the fault current are as follows: IR1 = j1.5 pu, IR2 = -j0.5 pu, IR0 = -j1. The type of fault is LG LLL LLG LL LG LLL LLG LL ANSWER DOWNLOAD EXAMIANS APP
Power Systems Positive, negative and zero sequence impedances of line are 2,2 and 5 pu respectively. Find self and mutual impedances respectively? 2 and 5 pu 2 and 2 pu 3 and 1 pu 1 and 3 pu 2 and 5 pu 2 and 2 pu 3 and 1 pu 1 and 3 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems A thermal generating station has an installed capacity of 15 MW and supplies a daily load of 10 MW for 12 hours and 5 MW for remaining 12 hours. If the load factor is 0.8. Find the reserve capacity of the station? 5 MW 18 MW 10 MW 9 MW 5 MW 18 MW 10 MW 9 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems The sequence components of the fault current are as follows : Ipositive = j1.5 pu, Inegative = − j0.5 pu, Izero = − j pu Which fault is this? LG. LLLG. LL. LLG. LG. LLLG. LL. LLG. ANSWER DOWNLOAD EXAMIANS APP
Power Systems An over current relay, having a current setting of 125% connected to a supply circuit through a current transformer of ratio 500/5. The plug setting multiplier for a fault current of 5 kA is 5 2 6 8 5 2 6 8 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The advantage of hydro electric power station over thermal power station is hydro electric power station can supply the power throughout the year the operation cost of hydro electric power station is low hydro electric station can be constructed at the place where the energy is required the initial cost of hydro electric power station is low hydro electric power station can supply the power throughout the year the operation cost of hydro electric power station is low hydro electric station can be constructed at the place where the energy is required the initial cost of hydro electric power station is low ANSWER DOWNLOAD EXAMIANS APP