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    Duke Energy Harrisburg Substation 638e198cd7b16
    Substations

    Point-to-Point Digital Secondary System Design for a Transmission Substation: Part 2

    Oct. 23, 2023
    Duke Energy is evaluating the use of a point to point digital secondary system to reduce the amount of copper utilized in traditional substation protection designs.
    Cover Goff 2
    Test and Measurement

    Low-Voltage Bushing Box and Low-Voltage Bushing Leaks Root Cause Analysis

    Jan. 18, 2023
    Bushing failures are the major causes of transformer failures. These leads can lead to costly consequences: oil spills, explosions, fires and the significant cost to replacing...
    Figure 1: Hastings, Michigan HDD contractor, Dig-It Inc utility crew installing distribution line in Southwest Michigan.
    Intelligent Undergrounding

    Horizontal Directional Drilling: When the Engineer Hands You A Bore Plan

    July 8, 2022
    A multi-part series on what a job superintendent needs to know about the escalating use of horizontal directional drilling for undergrounding transmission and distribution lines...
    Photo by Chris Van Lennep, Dreamstime
    New spools of high voltage cable are deployed for installation in an undergrounding project. The lengths of underground lines are subject to certain physical limitations which, when exceeded, cause untimely wear and tear.
    Intelligent Undergrounding

    To Use Overhead or Underground Transmission? That is (Still) the Question (Part II)

    April 5, 2022
    The second part of this two-part series examining underground high-voltage ac lines explores cable length limitations.
    Illustration of electric potential contours around a high voltage transmission line.
    Overhead Transmission

    High Voltage AC Transmission Line Design: NESC 5-mA Rule Considerations

    Jan. 26, 2022
    Basic theoretical background about the 5-mA Rule, historical context, and practical considerations when applying the rule in the design of overhead transmission lines.

    Recommended

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    T&D World Insider

    T&D World's Members-Only Access

    April 14, 2021
    Premium content resources deliver critical insights to improve utility operations. Join for free!
    stewmangroup/iStock/Getty Images
    Fire at a power substation
    Substations

    Fire Protection in Substation Transformers

    March 8, 2019
    Oil-filled transformers pose the greatest fire risk in any substation.
    Courtesy of the Village of Minster.
    DER System
    Energy Storage

    Batteries Included, Some Assembly Required

    March 16, 2018
    Utilities are deploying energy storage facilities across the grid.
    Digital Vision/Photodisc/Thinkstock
    55524659
    Safety

    How Electrical Lineman Can Prioritize Safety On The Job

    Nov. 16, 2017
    Linemen risk falls, electric shocks, burns, and other injuries while on the job every day
    Tdworld 5306 1344485011
    Substations

    A Refresher on Power Transfer Formulas

    April 7, 2014
    How real and reactive power travel from the generator to your home.