Reyrolle 7SR18 delivers advanced line differential protection for overhead lines and cables in transmission and distribution networks. This numerical relay ensures fast, secure fault clearance with integrated backup protection and communication flexibility.
Detect and isolate internal faults quickly using differential principles to maintain system stability and minimize outages.
Combine line differential with overcurrent and earth fault protection in one device to reduce panel space and complexity.
Support IEC 61850 and other protocols for seamless integration into modern substation automation and SCADA systems.
Apply current differential algorithms for rapid and selective tripping of faults on overhead lines and cables.
Use fiber-optic or digital links for secure and reliable exchange of current data between line ends.
Access clear menus and PC-based software for quick setup, reducing commissioning time and engineering effort.