IEC 61850 Communications Protocol
Apply optional IEC 61850 communications to the SEL-311C Transmission Protection System for guaranteed performance of substation automation and control. Streamline configurations of IEC 61850 enabled relays with acSELerator Architect SEL-5032 Software.
Mirrored Bits Communications Technology
Provide fast and reliable relay-to-relay communication for advanced communications-assisted protection, network reconfiguration, pilot protection, and restoration schemes.
Modbus, DNP3, and ASCII Protocols
Easily integrate into new or existing networks with these popular protocols. SCADA links, local HMI, and dial-in modems can access important relay data.
Simple Network Time Protocol (SNTP)
Simplify wiring and installation by receiving a time signal over existing Ethernet networks. SNTP makes a good backup to more accurate IRIG-B time synchronization. The 5 ms accuracy is ideal for basic time synchronization throughout a substation.
Built-In IEEE C37.118 Synchrophasors
Monitor distribution and transmission networks to detect potential cascading voltage collapse before it happens. IEEE C37.118 synchrophasors, at up to 60 messages per second, allow access to system values for wide-area monitoring and control. The IEEE C37.118 standard simplifies communication and data coordination between synchrophasor measurement units.
Monitoring and Metering
Enhanced Breaker Monitoring
Inspect reports for the most recent trip and close operating times and average operating times, or gather trending data for up to 128 previous operations. This information allows timely and economical scheduling of breaker maintenance.
Metering and Reporting
Apply these advanced features: event reports, Sequential Events Recorder (SER), circuit breaker contact wear monitor, substation battery monitor, instantaneous and demand metering, and local display panel.
Built-In Web Server
Access basic relay information on a standard Ethernet network with the built-in web server. View relay status, SER data, metering information, and settings for easy access within a local network. Web server access requires a relay password and is limited to read-only viewing of information.