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Losses in Overhead Transmission Lines: HVAC (380 kV) vs HVDC (±500 kV)

Leave a Comment / Electrical Design / OHTL DESIGN

Introduction Transmission losses play a decisive role in power system economics and energy efficiency. While generating power at high efficiency is crucial, delivering it across long distances without excessive energy loss is equally important. In most countries, the grid backbone relies on overhead transmission lines, operating in either: Both HVAC and HVDC are subject to […]

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Conductor Selection Considerations for Overhead Transmission Lines

3 Comments / Uncategorized / OHTL DESIGN

Introduction In high-voltage transmission line engineering, the selection of conductors plays a crucial role in ensuring system efficiency, reliability, and long-term cost-effectiveness. Conductors are the lifeline of a power transmission system, carrying electrical energy across vast distances under varying mechanical, thermal, and environmental conditions. Choosing the wrong conductor type or size can lead to increased

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featured image showing offshore wind turbines, hvdc transmission lines, and city skyline with article title overlay

HVDC Transmission and the Future of Renewable Energy

Leave a Comment / Electrical Design / OHTL DESIGN

Introduction Renewable energy is no longer a choice—it’s the future. From offshore wind farms in the UK to massive solar fields in the US, the clean energy revolution is accelerating. But one question remains: How do we deliver this green power efficiently over long distances? The answer lies in HVDC (High Voltage Direct Current) transmission

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Impact of Renewable Energy Integration on Transmission Line Design: Challenges & Solutions

1 Comment / Electrical Design / OHTL DESIGN

Introduction The global energy landscape is rapidly shifting toward renewable sources such as solar, wind, and hydro. While this transition reduces carbon emissions, it introduces significant challenges for transmission line design. Engineers must now account for variable loads, voltage fluctuations, and new grid stability requirements. Proper planning ensures safe and efficient transmission networks for a

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Obstruction Marking and Lighting in Power Transmission

Leave a Comment / Electrical Design / OHTL DESIGN

Introduction Transmission lines form the backbone of modern power networks, stretching across cities, rural landscapes, mountains, and even waterways. While these high-voltage lines are essential for delivering electricity, their height and long spans also make them potential hazards for air and ground traffic. To address this challenge, engineers employ obstruction marking and lighting systems—a combination

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Overhead Transmission Line Towers: Types & Uses

2 Comments / Electrical Design / OHTL DESIGN

When it comes to overhead transmission line (OHTL) design, one of the most critical engineering decisions is the selection of the right type of tower. Transmission towers are the backbone of modern power systems, ensuring reliable and safe delivery of electricity across long distances. Each tower type is designed to withstand different terrain conditions, line

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Understanding HVDC Power Transmission Systems: LCC vs. VSC Technologies

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LCC vs. VSC HVDC Systems: Key Differences and Advantages In the world of electrical power transmission, High Voltage Direct Current (HVDC) systems play a crucial role in long-distance power transmission and integration of renewable energy sources. These systems are primarily divided into two types based on the converter technology used: In this article, we will

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KML vs KMZ: Why KMZ Files Are Essential for OHTL Plan & Profile Submissions

Leave a Comment / Civil Articles / OHTL DESIGN

If you work with GIS data in the power or infrastructure sector, especially for Overhead Transmission Line (OHTL) projects, you’ve likely come across KML and KMZ files. Though similar, these file formats serve very different purposes. This article explains: What is the Difference Between KML and KMZ? KML (Keyhole Markup Language): KMZ (Zipped KML): In

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Right-of-Way (ROW) Width in Transmission Lines: Definition, Calculation & Example(380kV)

1 Comment / Electrical Design / OHTL DESIGN

What is Right-of-Way (ROW)? In transmission line engineering, the Right-of-Way (ROW) is a strip of land acquired to construct, operate, and maintain overhead power lines. The transmission line is usually centered within this corridor, and the ROW ensures safety, reliability, and accessibility of the system. ROW width depends on: Input Data Required for Right-of-Way (ROW)

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Understanding Transmission Line Unbalance and Transposition: A Simple Guide

4 Comments / Electrical Design / OHTL DESIGN

Transmission lines are essential for moving electrical power from power stations to homes, businesses, and industries. However, when transmission lines are not properly balanced, it can cause problems. In this guide, we’ll explain transmission line unbalance, what transposition is, and how both affect power transmission. By the end, you’ll understand why these concepts are important

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