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why we use REF and Differential Protection in one
transformers?my doubt is both protections are operated in
internal fault only.why we want to use 2 protections?please
clarify.
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Answer Posted / gunasekaran
at internal earth fault condition diffrentional sensitive
only 85% only remaining 15% covered by REF protection
| Is This Answer Correct ? | 1 Yes | 8 No |
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