When we synchronize the Generator BKR with TIE BKR then Gen
BKR is hold but TIE BKR is Tripped on Non directional over
current but when TIE BKR is Syn. with Gen. BKR then no fault
occur so what is the problem
i guess the protection setting relay at breaker is wrong
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how much allowable resistance that can be difference in motor all coils?
How can we calculate the rating of a cable with formula?
why is corona loss greater in a stranded conductor as compared to a solid conductor ?
why AC voltage source are generate as 50 Hz ?
Sir we have 12.5 MVA(110/11KV) transformer (Y-Y) connected,which tripped showing earth fault,when we charged transformer it stood OK ,but on connecting 11 KV feeders it tripped showing earth fault.our service engineers found that the B phase and R phase phase connecting to neutral broken from HV OLTC(on load tap changer),and R phase and Neutral is ok.Dissolved gas analysis shows that accetline content is high,tan delta value is 12.My dout is it is an internal fault of transformer,why REF or diffrential relay is not acted?
We have 2 Nos. Transformer with the capacity of 2000KVA and 1250 KVA and currently using only one 2000KVA T/R during operational hours while non- operational hous 1250 KVA T/R also used to reduce T & D losses. Similarly, 2 capacitor bank of 500KVAR and 300 KVAR also installed to balance reactive power. Now problem is around 1000 KW load PF is not maintaning 0.99 as 350 KVAR capacitor is in healty condtion. Now the PF is maintain 0.95 to 0.96.
what is different between buchhoz relay and pressure relife devices in transformer
A car's starter motor draws a current of 100 A at 12,0 V when starting the engine. The mechanical power required to turn the engine is 960 W. At what rate is energy from the battery converted to non-mechanical forms of energy?
how i sync. the different size of generator.
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TO operate transformers in parallel, vector symbol of the both should be same.If one transformer name plate is not there, how can we conclude that whether the transformer is having the same vector symbol or not?