Differential protection relay Reyrolle 7SR54

powerRS485Ethernet

The Reyrolle 7SR54 provides protection, control and monitoring for 2 and 3 winding transformers. All transformer vector groups and earthing connections are considered. Features The Reyrolle 5 is designed for the electricity networks of the future with enhanced communications and cybersecurity while maintaining a user-friendly interface and easy product management. The Reyrolle 7SR54 provides protection, control and monitoring for 2 and 3 winding transformers. All transformer vector groups and earthing connections are considered. The Reyrolle 7SR54 device includes a wide range of protection-functions and IEC 61850 Ethernet communications as standard. To further minimize the product variants the power supply and the binary inputs cover the full operating range with configurable binary input thresholds. The large LCD, tactile pushbuttons and programmable LEDs provide a user-friendly product interface and the relay element is withdrawable for easy replacement. Inputs and Outputs 8 CT + 16 BI + 8 BO 8 CT + 4 VT + 12 BI + 8 BO 8 CT + 4 VT + 37 BI + 18 BO 12 CT + 24 BI + 10 BO 12 CT + 4 VT + 35 BI + 16 BO Communication Standard front USB port (for configuration using Reydisp PC based software tool) rear RS485, 2 x RJ45 electrical ports or optional optical ethernet connections. Housing Size 12 with drawable design. Display Backlit 128 x 128 LCD with text and graphical display capabilities suitable for single line mimic diagrams. Functions Standard Functionality can include •24 Overexcitation protection •27 Undervoltage protection – 3 phase •27Vx Undervoltage protection – Vx •37 Undercurrent protection – phase •37G Undercurrent earth fault – measured