Since the early days of electric power systems, protection has been essential for the operation and safeguarding of power system assets as well as the safety of its users. Developed for the ...

The objective of protective relays and protective schemes is to protect electrical equipment such as transformers, lines, cables, bus bars, etc. during abnormal system conditions. Hence, protective ...

Protection systems that use electromechanical relays often rely on 86 lockout relays to prevent tripped breakers and transformers from being automatically or remotely re-closed.

The companies have created a joint solution for efficiently managing power system relay protection settings and ensuring compliance with NERC PRC-027-1.

Protection system relays are installed on nearly every element of power system infrastructure—from substations to transmission lines to generation plants. Like the circuit breakers or fuses in a ...

New, emerging solid-state relay designs offer integrated thermal protection that can prevent overheating and improve system safety, efficiency and longevity.

SEL serves the power industry worldwide through the design, manufacture, supply, and support of products and services for power system protection, monitoring, control, automation, and metering.

Sifang Co., Ltd. recently disclosed its forward-looking layout and practical achievements in the field of artificial intelligence (AI) on its investor interaction platform. As a leading provider of ...

An I-Team review of regulatory filings shows, for the last decade, Consolidated Edison delayed and ultimately scrapped a program to spend $350 million dollars to modernize “relay protection ...

According to the company, an issue with its relay protection system—which should, in theory, trigger a circuit breaker should any equipment failures happen—led to the outage.

Con Edison blamed their relay protection system Monday for the weekend power outage in New York City, saying the system didn’t operate as designed, according to preliminary findings from the ...