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Provide high-speed line differential protection
Apply current differential algorithms for rapid and selective tripping of faults on overhead lines and cables.
Why Reyrolle 7SR18?
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.
- High-speed differential protection for two-terminal lines
- Built-in backup overcurrent and earth fault protection
- IEC 61850 and other protocols for digital integration
Key benefits
Improve network security with fast fault clearance
Detect and isolate internal faults quickly using differential principles to maintain system stability and minimize outages.
Simplify engineering with integrated backup functions
Combine line differential with overcurrent and earth fault protection in one device to reduce panel space and complexity.
Enable digital connectivity for smarter operations
Support IEC 61850 and other protocols for seamless integration into modern substation automation and SCADA systems.
Featured capabilities
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Support multiple communication channels
Use fiber-optic or digital links for secure and reliable exchange of current data between line ends.
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Offer intuitive configuration tools
Access clear menus and PC-based software for quick setup, reducing commissioning time and engineering effort.