Advanced measurement, security, and control features are built into every SEL product to ensure that generators are protected, properly metered, and connected to the grid without interruption.
When SEL introduced the world’s first digital protective relay in 1984, we revolutionized the safety, economy, and reliability of electric power. Since then, we’ve grown to become a global leader in the industry—and it’s still our goal to provide the world’s most reliable solutions for the protection and control of electric power.
An SEL solution for your generation facilities will pay off in higher reliability and a lower lifetime cost of ownership—plus the security of an investment that is protected by the industry’s best warranty and support.
Upgrade your protection system and implement automation and control schemes to improve efficiency, reliability, and safety.
Protect and synchronize generators and their connection to the transmission grid with a reliable solution from SEL.
SEL provides the reliable solutions you need to protect and control combustion generators, steam turbines, and power plant systems.
Monitor and coordinate wind turbine networks, maximize efficiency of output, and integrate generation with the utility grid.
Use SEL products to monitor and coordinate the energy output of solar installations and safely interconnect them with the utility grid.
Protect your generation assets and increase the reliability, safety, and efficiency of your plant’s power system with an SEL solution.
Let us partner with you to create an SEL solution for your system. From engineering studies and system design through commissioning and training, SEL engineers bring inventiveness and a deep understanding of the fundamental principles of electric power systems to every project. No matter how complex or sophisticated the system, we can help you protect, simplify, and control it.
SEL meets your immediate and long-term workforce education needs by offering SEL University courses, seminars, conference presentations, and attending tradeshows. SEL University complies with the ANSI/IACET Standard, which is recognized internationally as a standard of excellence in instructional practice. As a result of this accreditation, SEL University is authorized to issue the IACET CEU.
An SEL control system synchronizes Montclair State University’s 5.4 MW CHCP plant with on-campus loads and the regional grid. This system also allows the university to operate as a true microgrid—islanding its generation, shedding load intelligently, and seamlessly reconnecting as needed.
See how an SEL special protection scheme allows Belgian grid operator Elia to integrate 8,000 gigawatt-hours of renewable energy per year into the European power grid. It protects the world’s fourth-largest offshore wind-power installation and a 1,000 MW HVdc link between Belgium and the UK.
SEL products are designed and manufactured for the world’s most challenging environments, exceeding all industry standards for temperature, shock, and electric stress. An optional conformal coating for circuit boards adds an extra level of protection against contaminants in extreme environments. Every SEL product comes with a ten-year warranty—the best in the industry. If any product fails under warranty, we’ll repair or replace it for free.
Contact SEL Engineering Services for help with NERC PRC-005 and NERC CIP compliance. We can audit your security and maintenance programs to streamline compliance and help you set up automated compliance reporting using the libraries built into our Real-Time Automation Controllers (RTACs).
We’re happy to answer all your questions and help develop the best solution for your needs.
Every SEL solution comes with lifetime technical support, free of charge.
There are no service contracts, time limits, or expiration dates. No matter how often you call or how long your SEL products have been in service, you’ll reach a friendly human who can provide the service and support you need.
Our support teams are stationed in regional offices around the world and staffed with application engineers who are experts in our products and in power system applications. We’re always ready with the information and resources needed to keep your SEL solution working effectively.