As electric power systems around the world evolve in response to increasing demand and the integration of low-inertia renewable power sources, electric utilities need power grid solutions that ensure reliability and position them to adapt to future needs.At SEL, we share your mission of providing reliable electric power. Our company was founded with the invention of the world’s first digital protective relay, and we’ve been partners with the utility industry in inventing the future of electric power ever since. We have hardware- and software-based solutions that are ready to deploy. And we have the resources and expertise needed to customize—and even invent—power grid solutions that meet your requirements and the needs of your customers.
Prepare for the Future With Innovative, Customizable Solutions
For over 40 years, utilities around the world have trusted SEL to provide protection, control, and automation solutions that modernize their systems and improve reliability for their customers. These solutions are based on our next-generation software and the electronic devices we manufacture, which are designed to withstand harsh operating environments, enduring temperature ranges as wide as –40° to +85°C (–40° to +185°F) and exceeding industry standards for resistance to conditions such as humidity, corrosion, shock, electric stress, and electromagnetic interference.Explore our key offerings:
- Comprehensive protection for generation, transmission, and distribution systems.
- Advanced solutions for power system automation and control.
- Cybersecure networking, wide-area communications, and precise-time solutions that are purpose-designed for operational technology (OT) applications.
- Revenue metering and power quality monitoring solutions that help optimize efficiency and provide insight into the health of your system.
- Configuration, automation, and visualization software solutions that make it easier to manage your fleet of devices, automate power system control, monitor your system, and collect and analyze data in real time.
- Custom-built panels and enclosures that incorporate SEL protection, control, automation, and communications solutions, and preassembled retrofit kits that streamline your modernization projects.
- Advanced solutions that enhance wildfire mitigation strategies by detecting and protecting against faults at both the transmission and distribution levels.
- Turnkey services and solutions that are tailored to your needs, ranging from protection design and cybersecurity assessments to complete engineering, procurement, and construction management services.
Discover the SEL Difference
Ten-Year WarrantySEL backs every product with a worldwide, ten-year warranty. If a product fails under warranty, we’ll repair or replace it at no cost.
The SEL warranty Custom-Engineered SolutionsSEL solutions solve engineering challenges in industries around the globe. SEL Services can further customize, design, and deliver systems that provide the precise functionality you need.
Learn more about our services and custom solutions Local Support, Global ExpertiseTechnical support is available at no cost for the entire service life of every SEL product. With application engineers located around the world, we can provide expert support no matter where you are.
SEL quality, reliability, and ongoing support World-Class ManufacturingWe design and manufacture our devices in factories we own and operate in the U.S.A. We prioritize vertical integration and supply chain security to ensure the quality, reliability, and availability of our products, because we realize how our supply chain affects yours.
Securing the supply chain Short Lead TimesOthers measure lead time in weeks. SEL measures it in days. We keep lead times down with a robust manufacturing infrastructure, streamlined processes, supply chain risk management, and strategic vertical integration.
Products that ship within ten days