Why Reyrolle 7SR46?
Reyrolle 7SR46 is a CT-powered overcurrent protection relay with the option for an external auxiliary power supply. This panel-mounted numeric relay provides both definite-time and inverse-time overcurrent and earth-fault protection for distribution grid applications such as cable networks and Ring Main Units (RMU). Reyrolle 7SR46 integrates with SCADA systems. Its compact, easy-to-use front panel includes navigation keys, an LCD and USB port.
- 10 fault records
- 100 event records
- Password protection
- Instantaneous and delayed overcurrent protection functions
- High sensitivity: Trip-ready at 80 % of Ismin (1-phase) and 40 % of Ismin (3-phase)
- Parametrization via keypad and/or via Reydisp Evolution PC software
- Internal lithium battery back-up
- Real-time clock
- Self-monitoring including battery condition monitoring
- Suitable for specific wide-measuring range CTs (class 5P80)