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Substation Components—Part 4: Isolators

Substation Components—Part 4: Isolators

This article explains the role of substation isolators, covering their purpose in visible isolation and safe operating sequences with breakers and…


Substation Components—Part 3:  Circuit Breakers

Substation Components—Part 3:  Circuit Breakers

This article explores the crucial role of circuit breakers in substations, covering their fundamental functions, interruption processes, and the…


Substation Components—Part 2: Instrument Transformers

Substation Components—Part 2: Instrument Transformers

This article explores the essential role of instrument transformers (CTs and VTs) in substations, their construction, accuracy factors, and safety…


Eco Wave, ‘Magic Ball’ Among Time’s Best 100 Inventions 2025

Eco Wave, ‘Magic Ball’ Among Time’s Best 100 Inventions 2025

Time selected several power industry innovations, including curbside electric vehicle charging, an electric ferry, a virtual power plant, and data…


News Oct 31, 2025 by Karen Hanson
Substation Components—Part 1: Power Transformers

Substation Components—Part 1: Power Transformers

This article explores the role of power transformers in substations, highlighting their design, configurations, cooling methods, tap-changing…


Building Coupled Thermal-Electrical Models for High Voltage Power Modules

Building Coupled Thermal-Electrical Models for High Voltage Power Modules

Learn how to model and manage heat in 4-6.5 kV IGBT and SiC modules using coupled electro-thermal simulations for accurate cooling and reliable…


Utilities Upgrade Grid Infrastructure as Energy Demand Surges

Utilities Upgrade Grid Infrastructure as Energy Demand Surges

PG&E and Entergy Mississippi have begun major grid infrastructure improvements to handle increasing energy demand.


News Oct 22, 2025 by Shannon Cuthrell
Understanding the Role of Substations Along the Transmission Path

Understanding the Role of Substations Along the Transmission Path

This article examines the functions of four different types of substations within the electrical grid: step-up, step-down, transmission, and…


High-Voltage Testing and Insulation Coordination—Part 5

High-Voltage Testing and Insulation Coordination—Part 5

In the final part of this article series, we examine key field testing and online monitoring techniques for high-voltage insulation systems.


High-Voltage Testing and Insulation Coordination—Part 4

High-Voltage Testing and Insulation Coordination—Part 4

In this article, learn methods for mitigating lightning- and switching-induced overvoltages in high-voltage networks through surge arresters,…


VPPs Are Growing, but Not Fast Enough for Demand

VPPs Are Growing, but Not Fast Enough for Demand

VPP deployments jumped 33% in 2024, but new capacity remains muted.


Out of Sight: Remote-Operated Drones Automate Grid Inspection

Out of Sight: Remote-Operated Drones Automate Grid Inspection

In a world first, National Grid has used automated drones to inspect U.K. grid infrastructure Beyond the Visual Line of Sight.


News Oct 01, 2025 by Liam Critchley
High-Voltage Testing and Insulation Coordination—Part 2

High-Voltage Testing and Insulation Coordination—Part 2

Here, in Part 2, we examine insulation coordination and Basic Insulation Level (BIL) in high-voltage systems for reliability against transient…


It’s More Than Tech: Five Steps to Building a Self-Healing Grid

It’s More Than Tech: Five Steps to Building a Self-Healing Grid

A self-healing grid requires more than advanced technology. Consider five strategy shifts underlying a more resilient grid.


High-Voltage Testing and Insulation Coordination—Part 1

High-Voltage Testing and Insulation Coordination—Part 1

In this article, we explore high-voltage insulation coordination, focusing on the nature of overvoltages, standardized impulse and withstand…


An Introduction to Bundled Conductors in Transmission Lines

An Introduction to Bundled Conductors in Transmission Lines

This article explores the design of bundled conductors for high-voltage transmission lines, highlighting their electrical and mechanical advantages.


Insulation Coordination Strategies for Series-Connected Multi-Terminal HVDC Systems

Insulation Coordination Strategies for Series-Connected Multi-Terminal HVDC Systems

Learn how to optimize and design a reliable insulation framework for an HVDC network, focusing on aspects like insulation clearance, voltage surge…


Power Transfer and Angle Stability in Long-Distance Power Transmission

Power Transfer and Angle Stability in Long-Distance Power Transmission

In this article, we will examine power transfer and angle stability. This is the final article in a 3-part series on long transmission line behavior.


An Introduction to Wave Propagation in Long-Distance Power Transmission

An Introduction to Wave Propagation in Long-Distance Power Transmission

In this article, we will examine wave propagation effects. This is the second article of a 3-part series on long transmission line behavior.


Introducing the Loss Cost Factor: A New Benchmark for Magnetic Material Selection

Introducing the Loss Cost Factor: A New Benchmark for Magnetic Material Selection

In this article, we introduce a figure of merit called the Loss Cost Factor (LCF), which integrates technical performance and cost factors of…