Answer / nur.asidik

-on lowZ differential, when fault happens, CTs going to go saturated. slope aims to compensate error due  to CT saturation because CTs have different characteristic.
-for busbar protection, it is HiZ differential, one slope because all CTs have same charracteristic. no need to compensate 

sir please send me previous year questions of jspl through which i could prepare myself fpr the test.

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