html{display:none} Popular Configuration | Schweitzer Engineering Laboratories

SEL-451

Protection, Automation, and Bay Control System

451#GHGH

  • TiDL relay for a digital secondary system solution
  • Eight fiber ports (to connect to SEL-TMU TiDL Merging Units) in place of the current and voltage analog inputs
  • Feeder protection
  • Dual-breaker bay control and breaker wear monitoring
  • Power supply: 125–250 Vdc or 110–240 Vac
  • 4U chassis and horizontal rack mount
  • 8 optoisolated independent level-sensitive inputs (125 Vdc), 13 standard Form A outputs, and 2 standard Form C outputs
  • Ethernet card with four 10/100BASE-T connectors
  • Protocols: FTP, Telnet, Synchrophasors, DNP3, and IEC 61850