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What is the difference between pick up and drop out in Electrical protection relay?

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Question added by ANAS YASIN KARATTIPARAKKAL , Assistant Engineer Electrical , Kerala State Electricity Board
Date Posted: 2013/09/17
Muhammad Saad Khan
by Muhammad Saad Khan , Postdoctoral Research Associate , Texas A&M University

The ratio of the limiting values of the characteristic quantity at which the relay resets and operates. This value is sometimes called the differential of the relay.

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