T&D

SEL-487E Transformer Protection Relay Now Offers Real-Time Control

Schweitzer Engineering Laboratories, Inc. (SEL) has announced wide-area-measurement-based control in a transformer relay for the first time. This enhancement to the SEL-487E Transformer Protection ...
T&D

Differential Relay Offers Two-winding Transformer Protection, Monitoring and Control

Cooper Power Systems has designed its full-featured differential relay, the iXP-420, to provide comprehensive two-winding transformer protection, and monitoring and control. The iXP-420 incorporates ...
Yahoo Finance

RESA Power Expands Its Transformer Solutions Capabilities with the Acquisition of 3MD Power Services LLC

HOUSTON, Jan. 6, 2026 /PRNewswire/ -- RESA Power, LLC ("RESA Power" or the "Company"), a market leader in power systems electrical testing, transformer services, and life extension solutions for power ...
Electronic Design

What’s the Difference in Switching Design Between AC and DC Power Relays?

Power relays are specifically designed to handle either AC or DC. It’s important to know the fundamental differences between them before building them into a system. Introduction to AC and DC Power ...