Electrical Substations

Substation Testing & Maintenance

Power Factor Testing of Circuit Breakers

Detecting contamination and deterioration in SF6 breakers to ensure longevity BY LINDA NOWAK, Doble Engineering Company The purpose of “Doble testing”, or power factor testing, SF6 (sulfur hexafluoride) circuit breakers is to detect the presence of contamination and/or deterioration of the...

Substation Automation

AI-Powered Substation Automation: Revolutionizing Grid Operations

Artificial intelligence (AI) is transforming various industries, and the power sector is no exception. AI-powered substation automation is revolutionizing grid operations by enhancing efficiency, reliability, and responsiveness. This article delves into the role of AI in substation automation,...

Physical Security & Monitoring

The Fight Against Animal-Caused Power Outages

Every day across the country, animals enter substations for warmth, food, security, or simply out of curiosity. In many areas, wildlife intruding into power equipment has become the #1 cause of outages, according to a report from the American Public Power Association (APPA) – even...

Substation Technologies

Protection of Electrical Power Transformers

INTRODUCTIONIn most large electrical systems, generators and power transformers are the two most expensive pieces of equipment. In addition to the capital cost of purchase, these two key devices are also the most critical to continuous and reliable operation of the system.Consider, for example, the...

Lightning Protection

Grounding System Maintenance Guide

Grounding systems are a crucially important component of any power supply system, because they directly impact public and employee safety, supply system reliability, power quality and life expectancy of power equipment. In spite of their crucial role in safe, reliable, and economic operation of...

Breakers & Relays

Storm-Hardened Switchgear

How to protect electrical equipment from Mother Nature BY ROBERT A. MURPHY, Trayer Engineering Corporation The U.S. National Weather Service called Hurricane Sandy the most destructive storm of 2012’s unusually active Atlantic hurricane season. Sandy delivered unprecedented damage across a wide...

Home Transformation Electrical Substations

Electrical Substation Maintenance

Improving safety and methodology techniques to protect utility workers

BY LARRY LAWRENCE, Lineman’s Testing Laboratories of Canada

In 1990, many workplace safety hazards were consistently ignored as if they were “acceptable risk” and an expected part of a worker’s daily routine. Not surprisingly, many workers who performed routine testing and maintenance procedures in high-voltage substations experienced serious and, in some instances, fatal injuries.

Additionally, electric utilities were faced with high costs associated from unfinished materials...

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