SEL487E transformer protection relay now offers realtime control

Sel 487b. SEL487B RELÉ DIFERENCIAL DE BARRAS Y FALLA DE INTERRUPTOR PDF Free The SEL-487B-1 Relay can receive fiber links from as many as eight Axion remote data acquisition nodes The SEL-487B is also capable of retrip for each terminal.

Parallel Redundancy Protocol (PRP) provides seamless recovery from any single Ethernet network failure, in accordance with IEC 62439-3. The SEL-421-7 SV Publisher provides full backup protection while the SEL-401 can provide basic phase overcurrent and breaker-failure protection in the absence

SEL487B2 Data Sheet Bus Differential and Breaker Failure Relay With

Superior protection performance is combined with integrated station automation features for seamless transition into new and. Figure 1 shows a comparison of open-phase detection to traditional overcurrent methods It also offers integrated station automation features, such as communications options, digital secondary system technologies, and distributed bus protection.

SEL487B Bus Differential and Breaker Failure Relay Power Equipment. The SEL-487B-1 is a relay that provides bus current differential protection, circuit breaker failure protection, and backup overcurrent protection for busbar and breaker applications The Ethernet network and all traffic are fully duplicated with both copies operating in parallel.

SEL487B Bus Differential and Breaker Failure Relay PDF Computer. It has 21 analog current inputs, three analog voltage inputs, and various automation and communication features. 2 The relay records a wide range of system events with sampling rates as fast as 8 kHz, and as much as 24 seconds of data per COMTRADE compliant event report