Three phase differential protection (87) with harmonic restrain Three phase Instantaneous differential protection (87) Restricted earth protection (87G) on either Primary or Secondary (MMI selection) Three phase time and instantaneous over current (5051) protection (HV & LV side) Ground time (51 G) and instantaneous over current protection (5OG) (either HV or LV side) Current unbalance (46) (HV& LV side)
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Okhla, Delhi