Electricity Forum Electricity Today Magazine Arc Flash Training
Intelligent Power Today Magazine
Archives

Testing & Maintenance

Safe Electrical Maintenance Checklist

Reduce the risk of arc flash hazards with CSA Z462 BY ROBERT BURGESS, Lineman’s Testing Laboratories Safe electrical maintenance practices and on-going personnel training can minimize the likelihood of electrical injuries and fatalities due to electrical shock, electrocution, arc flash and arc...

CSA Z462 and CSA Z463: A Powerful Combination

I recently viewed a destroyed 600-volt electrical panel board that had exploded when an operator reset an 800-ampere (A) breaker. His leather-palmed gloves had synthetic backs that ignited and seriously burned the back of his hands. His flame-resistant (FR) shirt was untucked and he was burned on...

Thermography 101

Thermography used to be expensive, difficult, and primarily used by large industrial facilities and the military. These days, it has become much more affordable, easier to use, and more broadly applied. A thermal imager works by producing thermal (heat) pictures of the equipment. Electrical...

Understanding the DC Overpotential Test

The 411 on DC testing of low-voltage circuit breakers BY JIM WHITE, Shermco Industries, Inc. The direct current (DC) overpotential test is one of the basic tests conducted to ensure an insulation system has adequate insulation life to make it to the next scheduled maintenance interval. While not...

Wireless Measurement Systems

Conquering challenges with wireless measurement systems BY COLIN PLASTOW, Fluke Electronics Any type of manufacturing or industrial environment presents a number of challenges when taking measurements. Whether you need to check performance over time or run spot checks, there are many situations...
Home Testing

Testing

Vibro-Acoustic Diagnostics for OLTCs

On-load tap changers (OLTCs) are crucial components within power transformers, enabling voltage regulation while the transformer remains energized. Maintaining the health of OLTCs is essential for ensuring grid reliability and efficient power delivery. Traditionally, diagnosing potential problems in OLTCs relied on intrusive methods like offline inspections or taking oil samples for analysis. These techniques require taking the transformer out of service, leading to downtime and increased maintenance costs. Vibro-Acoustic (VAM) technology offers a promising alternative,...

Testing Articles

T&D Buyer’s Guide Companies

Testing Videos

Advanced Field-Testing Technologies for Oil Filled Transformers

ELECTROTM Overview

100 Years of Doble: Centennial Video

Testing Products

Trident® Switchgear

SDT340

RUBBER GOODS

Testing Shared Media

Catalog

Electricity Today T&D Magazine - Substation And The Grid Special Edition

Catalog

Transformer Technologies Special Edition

Article

Calculation of Electrical Field Strength Distribution for Axial-Rotational Or Plane Parallel Geometry