Price: $12,892.55
SEL-421
SEL-421 TiDL Relay
421#NNCH
- 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
- Distance protection plus subcycle elements and series compensation logic
- 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