Abstract: At the 44th Annual Conference for Protective Relay Engineers in 1991, Walt Elmore presented the paper “Ways to Assure the Improper Operation of Transformer Differential Relays.” This paper ...

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 ...

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 ...

Designed for relay-based applications requiring a microprocessor, the A2550 automotive-grade relay driver integrates a voltage regulator, watchdog and reset, and three low-side DMOS relay-driver ...

Abstract: Part III is an extension of the Part II testing effort, but with relay manufacturers providing, commissioning, and configuring the relays for the high-current test laboratory activities.

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), ...