SEL arc-flash detection technology significantly decreases the time it takes a relay to trip in response to an arc fault, which reduces hazardous arc-flash incident energy. SEL-751 Feeder Protection Relays and SEL-849 Motor Management Relays combine light-sensing technology with fast overcurrent protection to provide high-speed arc-flash detection (AFD). Combining these technologies allows high-speed tripping during arc-flash events without overtripping for external faults.
SEL modeling experts create complete fault studies and reports on incident energy levels.
Making the transition to complete system automation requires controllers that are flexible enough to integrate with your existing devices, durable enough to meet the most rigorous physical demands, and powerful enough to deliver the highest performance possible. That’s why we created our family of SEL Real-Time Automation Controllers (RTACs), designed to reduce operating costs and increase productivity in your system without compromising reliability.
SEL Engineering Services (ES) offers proven automation and integration solutions using SEL technology. This includes fully configured, tested, and documented settings for networking, control, communications, automation, and protection equipment.
Reliable power is critical to nearly every business operation. Major organizations worldwide trust SEL to provide mission-critical power protection, communications, and management systems to ensure an uninterrupted supply of high-quality electric power. SEL’s comprehensive power management systems optimize power delivery and quickly reroute energy around faults to minimize production interruptions and save money.
Unplanned outages on expensive, critical, or long-lead equipment can create costly process outages. Condition-based monitoring (CBM) systems monitor the health of these equipment to provide equipment failure predictions.
SEL Engineering Services can provide industry-leading experts on electric power system dynamics, protection, automation, and controls to augment your design team.
SEL power management solutions integrate seamlessly with existing process control systems to ensure energy, material delivery, and production processes are synchronized for maximum production, quality, and efficiency. SEL’s comprehensive power management systems can minimize production problems by rerouting energy around system faults, and our metering solutions help lower energy expenses.
Test your systems before they arrive to your site with the HIL Real Time Digital Simulator (RTDS). SEL modeling experts validate power system models with data collected from the field.
SEL believes that combining layered security protections with the efforts of protection engineers, information technology (IT) personnel, and compliance managers leads to a secure and compliant solution.
SEL integrates multiple pieces of equipment and hardware (from SEL and other vendors) into a single assembly or kit, enabling one-stop shopping for parts and labor with a quick turnaround time.
SEL designs, manufactures, tests, and delivers custom protection, control, and metering panels as well as control cabinets and retrofit doors. SEL panels are supported by an unmatched warranty and extraordinary customer service. Panels, cabinets, and doors are built to match customer specifications and needs.
Identifying potential points of exploitation or vulnerability is a key step in building an effective cyber risk mitigation strategy and maintaining a secure utility system or industrial network.
Cybersecurity isn’t something that can be achieved by one person, product, or technology. Real system-wide protection starts with the understanding that it takes teamwork to achieve success. SEL believes that combining layered security protection with the efforts of protection engineers, information technology personnel, and compliance managers leads to a secure and compliant solution.
With over 50 designers and drafters located around the world, the SEL Engineering Services team provides local design and drafting services wherever you are.
SEL digital secondary systems are flexible, scalable, and economical solutions built with rugged, field-tested hardware that can withstand harsh environments. Pick the solution that fits your application: SEL Time-Domain Link (TiDL) technology for a simple, fast, and secure solution or SEL Sampled Values (SV) technology to achieve IEC 61850-9-2 interoperability.
University laboratories, public venues, classrooms, and dormitories must all receive a reliable stream of electric power. SEL has experience in integrating local generation resources with electrical utility feeds to provide highly reliable schemes to maintain campus uptime during local or utility outages. SEL's time distribution and display systems provide coordinated time throughout the campus for academia and facility operations, all time sources are traceable to NIST. SEL provides the solutions, services, tools, and training that employees need to run clean, safe, and energy-efficient facilities. In response to increasing energy efficiency goals, SEL metering solutions provide precise monitoring of consumption by individual buildings and departments.
SEL leads in the protection, monitoring, and control of electrical transmission and distribution lines, apparatus, and stations. Our full line of protective relays, substation automation systems, cybersecurity devices, automation controllers, and networking equipment works together to provide protection, SCADA, automation, monitoring, and asset management.
There are concerns that equipment used to protect and manage the operation of the power network are vulnerable to HEMP and IEMI events with the potential to disrupt the safe operation of the power system. SEL has performed extensive testing of SEL manufactured control houses and protective relays and has concluded that SEL control houses provide protection from EMP events by significantly attenuating the electromagnetic field.
Semiconductor and electronics manufacturers worldwide trust SEL to provide mission-critical power protection, communications, and management systems to ensure an uninterrupted supply of high-quality electric power. SEL's comprehensive power management systems optimize power delivery and quickly reroute energy around faults to minimize production interruptions and save money.