Great sir. I hv one doubt sir. In differential relay we use slope1 and slope 2 . but in alstom relay we also use high set one and high set 2 though we use slope1 and slope 2. What does it require( high set 1 and high set2)
Whatever I knows,.... generally differential highset setting is 8pu, hence when differential operate current value will be 8pu or more than that, differential relay will trip instantly without waiting to see what is the value of restrain current(Ires).
Sir ek doubt clear kar dijiye plz. Protection ke case me ct ka star point towards equipment rakhte hai but metering ke case me star point kaise aur kis direction me banate hai plz sir reply jarur dijiyega
