what are the difference between protection class CT and
Class PS CT
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Answer Posted / shivaji mangalagiri
all the protection cts like over current
relay and earth fault relay of transformer,Alternator and
HT motors are having core 1 and core 2 options. CLASS PS
type is used only for differential protection purpose of
transformer,Alternator and
HT motors only. and this type of cts are available only in
PAIR SCHEME (PS) AND their turns ratios,
impedances, VA burdens, knee point etc all these critical
parameters are exactly matched with each other.
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If we are given a 10 amp cable type and asked to calculate the number of cores used and the thickness of the cable, how do we do it?? please help...urgent!! i hope the question is clear enough!!
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