What is surger vector in 33Kv transmission feeder? We have
AC power generator of 8MW which is paralleled with 33Kv EB
grid. Some times our HT breaker gets trip off due to surge
vector problem. How to over come it? Is there any device to
observe the surge and avoid tripping?
Answer Posted / prem
you can use an M#3 relay for vector surge protection....
it is quiet useful and a little bit problamatis in programming
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234 MVA Generator 3 phase Short circuit current Values required? Gen set Rating-234 MVA, Gen Voltage-18kv, PF;0.8, Xdv:23.5 %, Transformer Rating-18/380KV, 680MVA,Yndd1 two winding, Step up TR, ZT:35.50 %,X/R 4.33 Gen CB Position, CB open ,Disconnected open, Generator Running Voltage 18 Kv, Bi mistakes generator side earth switch Closed during that time short circuit current level in 3 Phase required, and how to test on site 234MVA Generator Short circuit current,
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