What is the difference between Derived earth Fault and
measured earth fault.How it works.



What is the difference between Derived earth Fault and measured earth fault.How it works...

Answer / akshat sharma

What i think, measured E/F is what we measure directly through a Zero-sequence C.T. or core balance CT. While derived E/F is which relay calculates from 3 c.t`s i.e vector sum of R/Y/B.

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