IEEE C37.243-2015

IEEE C37.243

2015 Edition, June 11, 2015

Guide for Application of Digital Line Current Differential Relays Using Digital Communication

 

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Description / Abstract:

This guide presents practical line current differential schemes using digital communications. Operating principles, synchronization methods, channel requirements, current transformer (CT) requirements, external time reference requirements, backup considerations, testing considerations, and troubleshooting are included. It also provides specific guidelines for various application aspects including multi-terminal lines, series compensated lines, mutually coupled lines, line charging current, in-zone transformers and reactors, single-phase tripping and reclosing, as well as communications channel requirements.

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