SEL revolutionized the protection industry by building the first microprocessor-based protective relays. These relays integrated, economized, and simplified the art of transmission line protection while introducing two powerful tools: fault locating and event reporting.
- Transmission Protection
SEL revolutionized the protection industry by building the first microprocessor-based protective relays.
- Distribution Protection
Optimized management of distribution feeder performance is critical for the economical delivery of reliable electric power to connected customer loads. Choose from a variety of SEL distribution feeder relays to best meet your application needs.
- Generator and Motor Protection
SEL has set the standard in generator protection and understands how critical it is to provide continuous reliable motor protection.
- Substation Protection
Substation apparatus are valuable assets in power delivery systems. Select the SEL relay model that best suits the system application requirements for protection of transformers, buses, circuit breakers, and shunt capacitor banks.
Protective relays communicate with each other to clear faults faster, increase fault sensitivity, and restore power quicker. Select SEL products and technology to implement reliable teleprotection.