Products - Schweitzer Engineering Laboratories
Simplify relay settings and reduce inventory with one relay for all your capacitor bank needs. The versatile SEL-487V protects and controls both grounded and ungrounded, single- and double-wye capacitor bank applications.
Schweitzer Engineering Laboratories | SEL
New SEL-787L relay delivers economical and dependable line current differential protection. Product The SEL-TWFL locates faults using technology that is proven accurate to within a single tower span.
SEL-751 Feeder Protection Relay - Schweitzer Engineering …
The SEL-751 Feeder Protection Relay is ideal for directional overcurrent, fault location, arc-flash detection, and high-impedance fault detection applications.
2018年11月12日 · The SEL-700 series protective relays reliably protect and control your power system, from generators and transformers to lines, feeders, and motors. SEL relays offer high-speed, secure, accurate, and dependable fault locating along with comprehensive automation and control functions. A wide variety of
SEL-787 Transformer Protection Relay - Schweitzer Engineering …
The SEL-787 Transformer Protection Relay is a versatile, two-winding current differential relay that protects industrial transformers. Monitor transformer health with cumulative through-fault current recording, and for the first time in the industry, automatically check and generate differential compensation settings with the Commissioning ...
SEL-710 Motor Protection Relay - Schweitzer Engineering …
The SEL-710 Motor Protection Relay dynamically calculates slip. This premiere motor protection scheme allows maximum start times. Thermal motor protection models give the SEL-710 advanced protection beyond industry standards.
SEL-487E Transformer Protection Relay - Schweitzer Engineering …
The relay also helps avoid catastrophic transformer failure by detecting turn-to-turn faults involving as little as 2 percent of the total winding. You can minimize commissioning time and eliminate costly errors with included software that recommends matrix compensation settings.
SEL-751A Feeder Protection Relay - Schweitzer Engineering …
The SEL-751A Feeder Protection Relay is for industrial and utility feeder protection with flexible I/O options, easy retrofit, and fast setup and configuration. Complete feeder protection with overcurrent, voltage, and frequency elements.
The SEL-751 Feeder Protection Relay provides a comprehensive combination of protection, fault-locating features, monitoring, control, and communication in an industrial package. Standard Protection Features. Protect lines and equipment with an extensive range of protection elements, including: Overcurrent elements
SEL-411L - Schweitzer Engineering Laboratories
Apply the SEL-411L-2 TiDL relay with the SEL-TMU TiDL Merging Unit in the field to provide remote I/O and digitize analog signals. This simple point-to-point solution with a strong cybersecurity posture is easy to implement.