From protection fundamentals to advanced automation, SEL offers the most reliable and efficient solutions for every section of the electric distribution system.
The complex demands of distributed generation, renewable resources, and an evolving customer base present difficult challenges to distribution systems everywhere. SEL has been solving the electric power industry’s toughest challenges since 1984, when we introduced the world’s first digital protective relay. You can rely on us to help you meet emerging needs and prepare for the future.
Ensure the safety and reliability of distribution feeder systems and mission-critical substation assets with the most reliable solutions in the industry.
Use automation-ready SEL recloser controls to isolate outages, transfer loads, clear temporary faults, and tie distributed generation into the grid.
Use secure communications solutions from SEL to monitor the distribution system, accurately locate faults, facilitate automation, and maximize reliability.
Automate your location, isolation, and system restoration schemes with scalable and modular distribution automation solutions. Increase the operational efficiency of your system, and reduce operating costs.
Increase power efficiency and reliability by improving your system’s power factor and voltage stability. SEL power quality solutions can be implemented as independent applications or as a system-wide coordinated 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.
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.
An SEL protection and control system integrates Montclair State University’s on-campus generation and distribution systems with the regional utility grid, while also allowing the campus to operate as an islanded microgrid if necessary.
We’re happy to answer all your questions and help develop the best solution for your needs.
SEL 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.
Technical support for SEL-manufactured devices is always free. No matter how often you need to call or how long your SEL products have been in service, you’ll reach an SEL expert who can provide the service and support you need.
Our cybersecurity team is always ready with the information and resources needed to keep your OT networks and critical systems secure and working effectively. Cyber services support contracts can include incident response, audits, system hardening, and more, depending on your anticipated needs.