Power systems today operate in an environment where reliability and safety must be maintained despite rising loads, expanding ...

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 ...

Insulation resistance testers, often called megohmmeters, are fundamental tools for preventive maintenance, used to assess ...

Alliance brings power and utility companies a cutting-edge solution for driving relay setting development efficiency, ensuring data accuracy and achieving NERC PRC-027-1 compliance MARLBOROUGH, Mass., ...

To be competitive, some electrical contractors often supply low-voltage (LV) service entrance switchboards and switchgear that meet the minimum safety requirements of the National Electrical Code (NEC ...

Members can download this article in PDF format. Power systems employ diodes to perform a variety of functions. For example, diodes can protect against damage due to power-source reverse-polarity ...

Ground fault protection is a cornerstone in ensuring the safety and operational reliability of modern power systems. Ground faults, which occur when an unintended electrical path connects a live ...

Power protection is like insurance: You pay for it, yet hope you don’t need it. But it’s not a simple “purchase.” The first protection question is, “What am I seeking to protect and against what event ...

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 company. ...