Overhead T&D

Data Center Power Distribution for Critical Load Reliability

Data center power distribution delivers conditioned electricity through switchgear, UPS systems, generators, PDUs, busway, and rack circuits so critical IT loads remain online during faults, maintenance isolation, transfer events, harmonic stress, and branch overloads. Data center power distribution determines whether electrical disturbances remain local or cascade into service interruption. The objective is not simply to move electricity into a facility but to maintain continuous power delivery through switchgear, UPS systems, generators, PDUs, busway, and rack circuits, even when faults, maintenance isolation, or transfer events occur. Critical computing loads cannot tolerate long recovery windows. A distribution architecture that appears redundant during…

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Latest Overhead T&D Articles

When it Comes To Digital Marketing, Novice Sailors Can Navigate Calm Waters But Rough Seas Require Expert Sailors...

Digital Marketing Tip: leverage SEO, content marketing, PPC, social media, and analytics to drive qualified traffic, improve engagement, increase conversion rates, and optimize ROI through data-driven testing, segmentation, and continuous optimization. Digital Marketing Tip Explained Yes, the current business storm is increasingly difficult to navigate because of the Covid-19 pandemic. So, why is it a bad time to cut your advertising budget?History has a great way of teaching us lessons. During tough economic times, it might seem logical to make cuts to your advertising budget, but in reality, that’s not a sound idea, as it actually hurts your business.…

What is a Microgrid?

A microgrid is a localized energy system that can operate independently of or in conjunction with the main grid. By integrating renewable energy, storage, and smart controls, it enhances reliability, supports sustainability, and provides backup power for critical facilities. What is a Microgrid? Microgrids are gaining popularity as reliable and efficient solutions for modern energy challenges. They are increasingly valuable as the world pursues cleaner energy sources, carbon reduction, and grid modernization. By complementing smart grid infrastructure, they improve system reliability while helping communities and industries adapt to the demands of today’s evolving power networks. What Defines…

Power Line Carrier Communication Explained

Power line carrier communication enables data transmission over electrical power lines for grid automation, SCADA telemetry, and protective relaying, using coupling capacitors, line traps, and narrowband modulation to support substation monitoring and smart grid control. Applications of Power Line Carrier Communication in Modern Power Systems Power line carrier communication (PLCC) is a vital technology for electrical professionals to understand in today's evolving energy landscape. By utilizing existing power lines for data transmission, PLCC offers a cost-effective and reliable communication solution for a wide range of applications within industrial, commercial, and institutional power systems. In transmission engineering contexts, PLCC must…

Overhead T&D, Direct Current Technology

Direct current technology delivers efficient DC power distribution via rectifiers, converters, and power electronics, enabling microgrids, energy storage, HVDC links, photovoltaics, and electric vehicle charging with reduced losses and improved reliability. Direct Current Technology Fundamentals Direct current (DC) is the preferred technology for moving large amounts of power across long distances. DC results in higher overall efficiency and reliability than an equivalently sized alternating current (AC) system moving the same amount of power. The Advantages of DC More efficient: Over long distances, DC transmission can move more power with less electrical losses than an equivalent AC transmission line. For…

Transmission Lines Explained

Transmission lines carry electrical power and RF signals with characteristic impedance, distributed parameters, attenuation, reflection, and phase velocity, enabling efficient power distribution, signal integrity, impedance matching, and low-loss, high-voltage transmission. Understanding the Role of Transmission Lines in Power Systems Transmission lines are crucial in delivering electric power from generating stations to consumers. These vital power system components ensure that electrical energy reaches homes, businesses, and industries efficiently and safely. This article explores transmission lines' fundamentals, types, materials, and environmental impact. For a broader grid perspective, see how electricity transmission integrates generation, substations, and long-distance corridors in practice.Types of Transmission…

High Voltage AC Transmission Lines

Ac transmission lines deliver alternating current across the power grid using high voltage, overhead conductors, and insulators, controlling reactive power, impedance, and corona effects to minimize losses, improve efficiency, and ensure reliable long-distance electricity transmission. Understanding the Role of AC Transmission Lines in Power Systems Three-phase electric power systems are used for high and extra-high voltage AC transmission lines (50kV and above). The pylons must therefore be designed to carry three (or multiples of three) conductors. The towers are usually steel lattices or trusses (wooden structures are used in Germany in exceptional cases) and the insulators are generally glass…

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Overhead T&D Articles From ET Magazine

Transmission Construction Industry Leader Retires and Sells at Absolute Auction!

S.E., Inc. has been providing the very best in Transmission Powerline Construction for over (40) years throughout the Western United States. Brothers Mark, Steve, David, and Craig Sorenson have decided to retire and pursue other interests. Everything in the auction is owned by S.E., Inc. and will positively sell to the highest bidder without minimum or reserve! S.E., Inc. has hired Hunyady Auction Company to conduct their liquidation. Hunyady Auction Company is celebrating their 35th year in business and specializes in liquidation auctions of electrical construction companies plus many other industries. Transmission and Distribution (T&D) professionals have a unique opportunity…

Why Net-Zero is Cheaper for the UK

The United Kingdom has set an ambitious target to achieve net-zero greenhouse gas emissions by 2050. This goal necessitates a comprehensive transformation of various sectors, including energy, transportation, and agriculture. While the environmental imperatives are clear, there is growing evidence that this transition could also yield significant economic advantages for the nation. Energy Sector Transformation A pivotal component of the UK's net-zero strategy involves a substantial shift towards renewable energy sources. By 2040, projections suggest that wind and solar power will supply approximately 80% of the country's electricity needs. This transition is expected to reduce energy imports, enhancing national energy…

FERC Complaint Targets Duke, PJM Transmission Planning

A coalition of large energy consumers and ratepayer advocates has filed a complaint with the Federal Energy Regulatory Commission (FERC), urging the agency to prohibit transmission owners from independently planning "local" transmission projects exceeding 100 kilovolts (kV). The coalition argues that such local planning, lacking independent oversight, leads to inefficient and costly transmission development, resulting in unjust and unreasonable rates for consumers. Background Transmission planning involves determining the necessary infrastructure to transport electricity from generation sources to consumers. In the United States, this planning is typically conducted by transmission owners, which are often investor-owned utilities. These entities are responsible for…

How Dangerous is Linemen Work?

Many occupations pose risks to workers, but few match the dangers that linemen face daily. Linemen play a critical role in maintaining and restoring the power grid, often working in extreme weather conditions, at significant heights, and around high-voltage electrical systems. Their work is essential to modern life, yet it comes with life-threatening hazards. Statistics highlight the dangers of lineman work. The fatality rate for lineworkers is nearly four times higher than the national average for all occupations. Each year, an average of 26 linemen lose their lives due to work-related injuries. Additionally, linemen experience a non-fatal injury rate of…

Download Our FREE Overhead T&D Handbook

As utilities are faced with replacing rapidly aging transmission and distribution infrastructures, it is essential to be aware of the latest techniques, products and applications available on the market. Volume 1 of our Overhead & Underground T&D handbook series provides detailed information on testing and maintenance methods, the practical and theoretical applications of overhead transmission, and the unique challenges and opportunities presented by underground distribution networks. These topics and more are covered in detail in the 100-page first-volume handbook.

In this first volume, we explore the core principles and practices related to overhead and underground power transmission and distribution. We examine the key components of these systems, such as transmission lines, substations, transformers, cables, and switches, while delving into the design, installation, and maintenance of both overhead and underground configurations. Special attention is given to the unique challenges and considerations associated with each type of system—highlighting factors such as environmental conditions, reliability, safety standards, and operational efficiency.

This handbook is designed to assist engineers, utilities, technicians, and planners by providing practical insights and technical expertise for optimizing T&D systems. We cover essential topics such as grid infrastructure, fault detection, protection schemes, and the integration of emerging technologies like smart grids and renewable energy solutions. Whether you are involved in the planning of new installations or maintaining existing systems, Volume 1 offers the tools and guidance necessary for ensuring the safe and efficient delivery of power.

With a blend of theoretical concepts, industry best practices, and real-world applications, Overhead & Underground T&D Handbook, Volume 1 aims to be an indispensable reference for professionals seeking to deepen their understanding of transmission and distribution systems, and to navigate the evolving challenges of modern electrical networks.

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