Generation

Generation is the beginning of everything in the electrical world. It is where mechanical energy gets converted to electrical energy through a complex system of prime movers, generators, transformers, inverters, sensors, and more. Without generation there is no transmission, distribution, or industrials.

Fundamentally, we need to generate electric power to meet the demand the moment it’s needed. That energy conversion starts at the generation source. The addition of renewables, retirement of traditional generation sources, and the sheer expanse of increasing power demands create a need for more reliable, efficient, and simple generation solutions.

SEL continues to innovate in the space of generation. We were the first to reimplement analog protection functions into digital relays, and then added in new features—like auto synchronization—to reduce cost and complexity of installation. We also added a loss-of-field element based on the generator capability curve in our generator protection relays, allowing the user to set multiple zones to prevent generator damage. We have designed new protection approaches that allow for redundant stator protection.

Our solutions are designed to protect the pieces you already have in place and add in more elements as your needs grow.

Industry-leading expertise on electric power system dynamics, protection, automation, and control.
Capabilities range from design-stage consulting and hardware-in-the-loop (HIL) testing to delivering turnkey power management systems. SEL employs hundreds of power system engineers around the globe who have designed complex power systems in industries such as mining, data centers, and oil and gas.

All forms of electric power system modeling and studies.
These services include load-flow, short-circuit, and stability studies for equipment sizing, scheme design, protection coordination, and arc-flash protection. Our teams also provide HIL testing for both protection and control systems.

Both custom and pre-engineered synchronization systems.
These systems automatically reduce voltage differences, phase angles, and slip before automatically closing a circuit breaker. The systems send control set points to any number of generators or inverters, and an SEL relay at each point of coupling automatically closes the circuit breaker once acceptable voltage differences, phase angles, and slip are detected.

We design, develop, test, and deploy complete SCADA systems to monitor and control.
Our engineers can work with legacy equipment, provide new SEL equipment, or integrate both to create an economical, high-quality system.

Select from multiple designs for asset optimization, load shedding, load restoration, outage management, predictive maintenance, access control, cybersecurity, and more.

We believe you should never have to worry about whether your generation system will be working when you need it most. That’s why every device we manufacture comes with a ten-year warranty and free technical support.

It’s been this way at SEL since the company was founded nearly 40 years ago—a major reason why we’re North America’s most trusted provider of protective relays and ranked #1 by international utilities in price, service, and support.