Power Transformers & Electrical Substations

Power Transformers

Climate Change Strains Global Electricity Networks: A Wake-Up Call

The increasing frequency and intensity of climate-related disasters are placing unprecedented strain on the world's electricity networks, with severe implications for global energy security. According to a recent Bloomberg report, the effects of climate change are pushing many electricity grids to...

Electrical Transformers

Transformer Core Grounds

Transformer core grounds: a different path to maintaining insulation systems BY JAMES WHITE, Shermco Industries, Inc. Power transformers are usually supplied with a ground from the core of the transformer to the tank (earth/ground). Smaller, dry-type transformers may not have this ground, but it...

Transformer Testing & Maintenance

Grounding Transformers Explained

By R. W. Hurst, Editor Grounding transformers are used to provide a path to ground for unbalanced load current and for fault currents on systems where a suitable ground is otherwise not available. Grounding transformers are normally constructed with one of the two configurations: Zig-Zag (Zn) with...

Electrical Substations

Substation Technologies

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 Technologies

Substation Architecture Protection

Solving common mistakes in communications cabling for electrical utilities BY FRANK KODITEK, Belden Inc. In the energy industry, there are numerous types of cables in use for a wide variety of applications, from transporting high-voltage current for miles to providing power and data connectivity...

Substation Technologies

Grid Communications Infrastructure: Fiber, Wireless, and Networking Technologies

Reliable and secure communication infrastructure is essential to the safe and efficient operation of the modern power grid. As utilities transition to digital substations, integrate distributed energy resources (DERs), and deploy real-time monitoring systems, the need for robust, scalable grid...

Home Transformation

Transformation

The Role of Transformer Oil Alternatives in Improving Safety and Environmental Sustainability

The Growing Need for Safer and Greener Transformer Oils

Transformer oil plays a vital role in the operation and longevity of power transformers, providing insulation, cooling, and arc suppression. Traditionally, mineral oil has been the industry standard due to its effective dielectric properties and cost-efficiency. However, growing concerns about fire safety, environmental impact, and sustainability have driven the search for alternative transformer oils. Synthetic esters, natural esters (vegetable-based oils), and silicone fluids are emerging as...

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DILO 3-033-R002 SF6 Gas Leak Detector

M7100 High-Voltage Asset Analyzer

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