Schweitzer Engineering Laboratories (SEL), renowned for its pioneering solutions in power system protection, automation, and control, has unveiled its newest innovation, the SEL-787L Line Current Differential Relay. Engineered to deliver economical, fast, secure, and dependable protection, the SEL-787L is poised to revolutionize line current differential protection in distribution and industrial applications.

The SEL-787L boasts advanced algorithms designed to swiftly detect faults and trigger precise tripping actions, all while mitigating communication disturbances and asymmetry without relying on external time sources. Offering both line current differential and overcurrent protection in a compact unit, it maximizes simplicity by supporting point-to-point or multiplexed IEEE C37.94 communications via single-mode or multimode fiber.

A significant addition to the SEL-700 series family, the SEL-787L inherits popular features such as arc-flash protection, a 5-inch color touchscreen display, compatibility with widely used communication and time protocols, a small form factor, low-energy analog voltage and current inputs, and flexible I/O options.

Vinod Yedidi, senior engineering manager at SEL, expressed excitement about the new release, stating, "The SEL-787L provides economical and reliable current differential protection in an easily configurable, small form factor packed with innovative features. For customers already using SEL-700 series products, the SEL-787L offers the same product line consistency for ease of integration and application."

The SEL-787L Line Current Differential Relay is now available for order, marking a significant advancement in power system protection technology. For further details, visit the SEL website.

Source: Schweitzer Engineering Laboratories