Answer / k.prakashchandra

AC HP x 750/3x ph voltage x 0.8,DC -HP x 750 / Vx0.9

What is the minimum setting in REF relay because i am facing some problem whenever power resumes after power failure my transformer is tripping because of REF trip. I am using CSPC make numerical relay(DIP switches). Now setting is 15 percentage. What is the reason for this triping. I sm waiting for answer

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