The "Reyrolle 7SR11 & 7SR12 Argus " overcurrent protection series of relays provide overcurrent and earth fault protection. These relays are typically applied to provide the main protection on feeders and interconnectors and the backup protection on items of plant such as transformers. The 7SR12 includes directional control of the overcurrent and earth fault functionality and is typically installed where fault current can flow in either direction i.e. on interconnected systems.For more detailed information on "7SR11 & 7SR12 " relays, refer to Reyrolle devices documents.
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