ENERGY AUTOMATION PRODUCTS The Reyrolle 7SR54 is a protective relay intended for transformer differential protection. It provides protection, control, and monitoring for transformers with 2- and 3-winding. This includes accommodating all transformer vector groups and earthing connections. It features comprehensive protection functions, standard IEC 61850 Ethernet communications, adjustable input thresholds, and a universal power supply. Compact design and low product life-cycle cost Combined 1 A and 5 A current transformer inputs • Reliable operation due to powerful, proven protection algorithms • IEC 61850 Edition 1 & 2, DNP3 TCP, Modbus TCP with HSR,PRP and RSTP operation for increased availability • Role Based Access Control (RBAC) • Simple product ordering • User selectable languages: English, French, German, Portuguese, Spanish, Turkish, Italian • Conformal coating ordering option

• Binary outputs (max) incl. Device healthy contact - 18 • Arc flash detector inputs (AFD) - 0 or 3 • Heavy duty binary outputs (HDBO) - 0 or 4 • High speed binary outputs (HSBO) - 0 or 3 • Temperature sensor inputs (TSI) - 0 or 8 Standard front USB port (for configuration using Reydisp Manager 2, a PC based software tool), rear RS485, 2 x RJ45 electrical ports or optional optical Ethernet connections Size 8 or 12 with withdrawable design Backlit 128 x 128 LCD with text and graphical display capabilities suitable for single line mimic diagrams • Comprehensive protection for 2- or 3-winding transformers...