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IEVref:448-15-10ID:
Language:enStatus: Standard
Term: directional comparison protection
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Definition: overreach protection, usually not a distance protection, using telecommunication, in which the relative operating conditions of phase angle measuring elements, at each end of the protected section, are compared using a locally derived voltage or current as a reference

NOTE – In the USA, the term "directional comparison protection" is applied to any non-unit protection using telecommunication, with or without overreaching or underreaching distance protection.


Publication date:1995-12
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