SEL distribution automation systems combine fast protection with flexible automation and communications to improve reliability, increase system efficiency, and reduce operating costs.
The scalable, modular nature of SEL distribution automation systems, built on the foundation of our protective relays, allows you to implement a broad set of functionalities or a subset that addresses your specific needs. We’ll create an automation solution that simplifies the protection and control of your system—and you can add new capabilities as your needs change over time.
By designing for reliability first, we reduce operations costs, improve system performance, and deliver an unbeatable lifetime return on investment for our customers.
Your operators and engineers are invited to be part of our factory acceptance test and put the system through its paces in our Real Time Digital Simulator (RTDS) lab, with your control system hardware in the loop. This way, you know that your SEL solution will do precisely what you need it to—the first time, and every time.
We deliver the benefits of automation in three ways, depending on your needs. And because SEL distribution automation systems are modular and scalable, we can customize any part of the solution—or all of it—to meet your needs.
SEL relays and controllers provide built-in automation logic that can be used without communications to automate protection, network reconfiguration, and volt/VAR control. Protection devices apply time coordination for protection and time delays for automation, using local sensing and control.
The addition of communications improves not only the coordination of protection between devices, but also the automation of switching to reconfigure the system.
Automation logic in each line device allows it to make intelligent decisions based on fault detection and the presence of voltage on one or both sides of the recloser.
Centralized control that uses one or more distribution automation controllers for feeder automation is useful when coordinating a large or very diverse distribution system. The addition of intelligent line devices, such as our wireless fault condition indicators, provides quick and accurate fault location.
SEL manufactures the electric power industry’s most durable and reliable devices.
Our products are designed to withstand the world’s most challenging environments, exceeding all industry standards for temperature, shock, and electric stress. An optional conformal coating adds an extra level of protection against contaminants in extreme environments.
Every SEL product comes with a ten-year unconditional warranty—the best in the industry. If any product fails under warranty, we’ll repair or replace it for free.
An SEL representative will follow up with you directly. We’re happy to answer all your questions and help you find the best solution for your needs.
When you choose SEL, you get more than products and services—you get a partnership. Our customer support teams are experts in power system products and applications, and they’re available for the entire life of your SEL solution.
Engineering Services project engineers are ready to assist you in various project stages from planning through final commissioning of the system. Afterward, you have access to technical support from SEL application engineers, at no charge, as long as SEL products remain in service.