Question: Consider a 3-phase power transformer having 650/20,000 volts ratio. You are in a process to apply Merz-Price circulating current scheme for the protection of this

Consider a 3-phase power transformer having 650/20,000 volts ratio. You are in a process to apply Merz-Price circulating current scheme for the protection of this transformer. The protective transformers on both sides would have a current ratio of 1000/5. Will it be a correct decision? If not, justify your answer by providing a solid reason and suggest a suitable solution to that issue.

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the given CT 10005 can not be used in both sides because the currents in HV and LV side of transformer is different in HV side current is low and in L... View full answer

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