Hello! sir. have not seen any book or lecture explaining why fault current is 0.86pu for a wye-delta transformer during fault at delta side. Can you also discuss?
Because he is taking the three phase fault as reference. The phase to phase fault is about 0,87 of a three phase fault. It' is important to say these values are in PU.
Because he is taking the three phase fault as reference. The phase to phase fault is about 0,87 of a three phase fault. It' is important to say these values are in PU.
Superb video! Clarifies a lot of doubts!!
Good video. Can you also show the effects to the voltage too when the faults happens?
very helpful. Sir, can you explain why we are taking turns ratio 1.73 ie keeping the primary line voltage = secondary line voltage ?
You can understand that analyzing the ratio of the transformer RT. Just like that RT=VAB/(Vab/1,73)=>RT=1,73*VAB/Vab, where RT in PU is 1.
Hello! sir. have not seen any book or lecture explaining why fault current is 0.86pu for a wye-delta transformer during fault at delta side. Can you also discuss?
Because he is taking the three phase fault as reference. The phase to phase fault is about 0,87 of a three phase fault. It' is important to say these values are in PU.
Hi.Why for Phase ro Phase it is 0.87 pu?
Because he is taking the three phase fault as reference. The phase to phase fault is about 0,87 of a three phase fault. It' is important to say these values are in PU.