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RET620 V2.0 ANSI Protective Relay Application Drawing Set

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This document is a technical drawing set for an ABB RET620 V2.0 ANSI protective relay application, detailing a single line diagram with breaker failure, trip, and close logic for three breakers. It also includes front panel elevation, binary I/O assignments, CT/VT connections, and an FT-1 switch arrangement for protective relaying and control.

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