The MCPC Series are microprocessor-based control relays designed for use with resistive loads. The devices have current ratings from 25 A to 90 A that operate from 48 VAC to 530 VAC at 0-100% control ...

An experienced protection and integration engineer can help determine the best configurable relay settings to provide maximum system protection and advanced functionality. Photo courtesy: Emerson ...

Based on Trayer Engineering's original VFI design introduced in 1980, the 3000 Series three-phase vacuum fault interrupters take this design and incorporate the latest advancements of vacuum ...

Schweitzer Engineering Laboratories (SEL) released the SEL-T400L Time-Domain Line Protection—the world’s first traveling-wave microprocessor-based relay. It detects power system faults and sends a ...

In 2005, Jersey Central Power & Light (JCP&L), a subsidiary of Akron, Ohio – based FirstEnergy Corp., initiated a project to identify protection system improvements that could be made to proactively ...

After almost 25 years of service, the generator and transformer protection systems at the hydropower plant of a western U.S. dam and reservoir were upgraded, including the replacement of ...

The importance of reliable, high-quality electric power is increasingly being recognized by utility customers. The importance of reliable, high-quality electric power is increasingly being recognized ...

Allegro's A2550 automotive relay driver incorporates a 5-V regulator. Large numbers of relay-based applications require the use of a microprocessor that implements a complex system control. Allegro’s ...

Thanks to ongoing innovations in technology, electrical engineers' approach to motor protection has changed over the years. The traditional strategy to large AC motor protection (e.g., over 500 hp), ...

Easun Reyrolle Ltd., previously known as Easun Reyrolle Relays and Devices was incorporated in 1974 at Hosur and commenced production in 1980. The company was promoted by the late K Easwaran, Hari ...