Relay setting
Relay setting
(OP)
Can anyone help me how to compute the relay pick up, time delay and instaneous setting, to tell you the truth I dont know how to deal with it.
Hope you can help.
Thanks.
S4-S1-SA, upstream.
S4: CT Ratio 1000/5, Full load amps: 710 Amps,SCA-3p: 21,208Amps
S1: CT Ratio 2500/5, Full load amps: 1844 Amps, SCA-3p:21,221Amps
SA: CT Ratio 2500/5, Full load amps: 1844 A, SCA-3p: 22,890Amps
Relays use is SEPAM SIT, T:0.3 to 12.5 10Is






RE: Relay setting
Alan
Democracy is two wolves and a sheep deciding what to have for dinner. Liberty is a well armed sheep!
Ben Franklin
RE: Relay setting
Relay setting is as much an art as science. For starters you need to read up some good books on protective relaying. I think davidbeach has a good FAQ on list of books on the subject. Search this site.
RE: Relay setting
I agree with rbulsara. You can get a free copy of the publication "The Art of Protective Relaying" from GE Industrial webpage.
capuchi