Grid Modernization

Grid Stability and Wide-Area Monitoring

Maintain grid stability and enhance situational awareness with advanced wide-area protection, monitoring, and control systems.

Renewable generation is introducing complex power system dynamics. Increasing demand is pushing transmission systems closer to their design limits. And reliability expectations continue to increase. Now more than ever, transmission system owners need to be equipped with system insights that support effective control decisions.

Improve Transmission System Protection and Stability

Ensure transmission system stability with a special protection scheme (SPS) or remedial action scheme (RAS) designed, tested, and commissioned by SEL. Our powerMAX power management and control solutions include wide-area monitoring and control systems, and are trusted by utilities for integration of large wind power stations.

SEL uses advanced modeling and simulation, informed by decades of power engineering experience, to analyze system requirements, validate designs, and optimize the performance of the system.

In some cases, utilities can operate transmission corridors at a significantly higher capacity after the RAS/SPS is implemented, increasing revenue and freeing up capital expenditure.

Wide-Area Situational Awareness

Enhance system visibility, monitoring, and control with next-generation wide-area monitoring software (WAMS) and wide-area situational awareness (WASA) solutions.

SEL Synchrowave Operations software complements SCADA and energy management systems (EMSs) by turning high-resolution time-series data—including synchrophasor data, relay event reports, point-on-wave data, and GIS geospatial data—into actionable system insights that support better decision-making.

A Partner for Any Modernization Project

SEL offers modernization solutions and services for any part of the grid, scaled to your needs. Partner with us on individual projects or multi-year modernization programs.

We design electric power systems, coordinate procurement and construction, manufacture the relays, build the panels, and install and commission the protection and control systems.

  • Simplicity at Every Stage—Streamline your grid modernization program with a single PO. We offer a single-vendor solution for the entire process—from design and permitting through building, installation, and commissioning. This simplifies budgeting, project management, and timelines, ensuring on-time delivery.
  • Advanced Technology—SEL solutions offer the fastest protection available. They also improve systemwide visibility and control through cybersecure remote engineering access, automated event collection, and precise fault location, among other benefits.
  • Access to Experts and Product Support—Engineering support is available to you before, during, and after a project. After commissioning, you receive 24/7 support from SEL application engineers. Technical support is available for the lifetime of every SEL device at no cost.
  • Reduced Total Cost of Ownership—Our simplified project management approach, advanced technology, and expert support lower your O&M costs in the short term and for the entire life of your modernized system.

Partnership and Support

We believe you should never have to worry about whether your protection and control systems will be working when you need them most. That’s why you always have access to SEL engineers—and every device we manufacture comes with a ten-year warranty and free technical support.

After your modernized systems are commissioned, our worldwide corps of application engineers provides technical support for SEL products at no cost.

As long as your SEL products remain in service, you have free access to direct technical support from a large corps of application engineers who are intimately familiar with the way our devices are deployed and the systems they support in the field.

Customer support staff and application engineers are stationed in regional offices across North America and around the world.

Security Bulletins and Updates

We notify product owners of updates and security patches for the full life of the product. Software and firmware updates are distributed directly to our customers via secure file transfer.

More About Security Notifications

Training and Education

SEL meets your workforce training and continuing-education needs through seminars, conference and tradeshow presentations, and technical training courses.

We can also work with you to develop training that is customized to the specific needs of your workforce.

Innovation, Persistence, and a New Beginning

The Republic of Georgia stabilized its 500 kV backbone first, then added wide-area protection and control—finishing its nationwide transmission system modernization program a year ahead of schedule.

Questions? Contact Us!

If you have any questions about SEL products, services, solutions, or support, please contact us. Our service and support professionals are ready to provide the answers you need.

Unbeatable Support

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.

More about SEL warranty and support