Engineering Services

SEL Engineering Services provides turnkey solutions and services that help our customers protect and control critical electrical infrastructure and power systems worldwide.

When SEL produced the world’s first digital protective relay in 1984, we revolutionized the safety, economy, and reliability of electric power. Our engineers are experts in the protection, automation, control, and metering of power systems, and they approach every project with a spirit of quality, innovation, and service.

Let us partner with you to create a solution that meets your needs.

Our Services

Prevent widespread outages and make your electrical power system more reliable, resilient, and secure. Our powerMAX Power Management and Control System solutions leverage the time-proven strengths and scalability of a relay-based protection architecture.

For Utility Providers
For Industry

Additional Services


SEL Engineering Services can provide experts on electric power system dynamics, protection, automation, and control to augment your design team and provide targeted expertise during critical stages of a project.

We employ hundreds of power system engineers around the globe who have designed complex power systems in nearly every industry. We can collaborate with you to create protection, control, automation, communications, and security systems with our products and how to integrate SEL-engineered solutions with your legacy equipment.

Key Offerings:

  • Event investigation
  • Root cause analysis
  • Licensed experts
  • Capital project design
  • Procurement strategy development
  • Customized teaching

Design and Drafting

SEL Engineering Services provides both civil and electrical engineering drawings packages. Located in offices around the world, our engineering design staff can provide full substation design packages, site retrofits for existing electrical gear, or detailed design drawings related to power system protection, automation, metering, and control.

Our staff works with various design standards, including IEEE, NEMA, IEC, and JIS. We can help you design your own set of standards, offer advice on best practices, or work within your house standards. We can also convert existing Mylar, vellum, and paper drawings into electronic files.

Our Support

Quality and Security

All of our products are designed, tested, and manufactured in SEL-owned and -operated facilities in North America.

The SEL Engineering Services team follows rigorous engineering procedures for design, development, testing, and commissioning of electric power systems. We continually identify, monitor, and improve best practices to ensure your satisfaction.

We practice secure supply chain management, including verified chains of custody, responsible sourcing, and keeping quantities of critical parts in reserve. Our quality management system is certified to ISO 9001 Quality Management System requirements.

Our Commitment to Safety

SEL Engineering Services approaches all projects with an unwavering commitment to safety.

Employees working in the field receive comprehensive safety training that includes real-world scenario exercises, hands-on performance, and thorough review from qualified individuals.

We also integrate human performance improvement (HPI) tools in our everyday work practices and have a comprehensive event reporting and investigation process to bolster safety procedures and promote awareness among employees.

Products You Can Rely On

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 for circuit boards 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.

Unbeatable Support

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.

Questions? Contact Us!

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.