Solar Power

An SEL solution can help you meet the highest standards for reliability and security—while also reducing the lifetime cost of ownership.

Use SEL products to: 

  • Locate and resolve feeder cable faults.
  • Deploy SEL Real-Time Automation Controllers (RTACs) and secure network switches to implement communications-based power factor control.
  • Securely and economically control the point of common coupling (PCC) between the utility grid and power generation resources.
  • Quickly deploy your renewable energy project with pre-engineered control system libraries.

Protection and Interconnection

SEL-651R Advanced Recloser Control

A turnkey point of common coupling (PCC) solution. One low-cost device controls your utility interconnection with IEEE 1547-2018 protection and synchronization. SEL’s innovative fast islanding detection ensures safety on both sides of the intertie point.

Full Product Info 

Monitoring, Control, and Integration

SEL-735 Power Quality and Revenue Meter

Optimize your system by analyzing data, identifying usage trends, and diagnosing system problems.

  • Measure and report power quality indicators.
  • Meter revenue over a wide current range.
  • Log voltage sag, swell, and interruption (VSSI).
  • Automated data reading—capture rate-based demand and energy consumption, and apply time-of-use metering.
  • Capture waveforms and trigger records.
Learn more 

Communications and Cybersecurity

SEL communications solutions help ensure that your communications networks are reliable, cybersecure, and compliant with NERC CIP auditing requirements.

SEL-2742S Software-Defined Network Switch

The industry’s first field-hardened software-defined networking (SDN)-enabled switch. Centralized, software-controlled traffic engineering puts you in control of your communications flows and helps secure the cyber and physical interfaces.

  • Network security—control exactly what is allowed on your network, and eliminate attack-prone networking features.
  • Centralized network management and log collection.
  • NERC CIP data collection (with the SEL-5056 Software-Defined Network Flow Controller and the SEL Flow Auditor application)
  • Synchronized time over a LAN.
  • Substation deployment—suitable for harsh environments.
Learn more 

Engineering Services

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.

Products and Service You Can Rely On

SEL products are designed and manufactured for 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 warranty—the best in the industry. If any product fails under warranty, we’ll repair or replace it for free.

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