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SF6 insulated load switch hvdc converter transformer servicing machinery Siemens

Siemens Reyrolle Numerical Relay Supplier,Siemens Reyrolle ... Reyrolle 7SR220 Overcurrent Relay. The 7SR210 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 back-up protection on items of plant such as transformers, Relays have four current inputs and are housed in E6 or E8 cases.

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