Customer Outage Minimization
Reduce system and customer impacts with single- and three-phase tripping and reclosing. You can improve reliability by maintaining service to customers who are not on the faulted phase of the feeder. Use the frequency window elements to qualify the health of the source (including DER/distributed generation sources) before closing the recloser to restore power.
Communications-Assisted Protection Schemes
Integrate the SEL-651R into either Ethernet- or serial-based communications networks with standard DNP3 and Modbus protocols or optional IEC 61850. You can use communications for local and remote engineering access, SCADA, real-time protection and control, loop restoration, islanding detection, blocking, and fast bus tripping schemes. The Parallel Redundancy Protocol (PRP) is also available as a standard option on SEL-651R recloser controls with dual-Ethernet copper or dual-Ethernet fiber ports. PRP is an Ethernet-based redundancy protocol that provides seamless network failover for systems such as electrical substations.