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Distribution Transformers—Part 5: Line Voltage Regulators and Capacitor Banks

Distribution Transformers—Part 5: Line Voltage Regulators and Capacitor Banks

Learn how line voltage regulators and capacitor banks provide fine control of feeder voltage profiles and reactive power balance, ensuring…


GaN Continues To Expand Its Role in AI Power Architectures

GaN Continues To Expand Its Role in AI Power Architectures

Learn how GaN technology is revolutionizing AI data centers by enabling high-efficiency power conversion for multi-kilowatt GPUs and emerging 800 V…


What Current-Mode Gate Drivers Mean for Wide Bandgap Devices in Data Center Power

What Current-Mode Gate Drivers Mean for Wide Bandgap Devices in Data Center Power

AI's demand for power density drives the need for smaller, integrated gate drivers. High-voltage designs using wide bandgap transistors often…


Distribution Transformers and Voltage Regulation—Part 4: On- and Off-Load Tap Changers

Distribution Transformers and Voltage Regulation—Part 4: On- and Off-Load Tap Changers

In this article, we detail distribution transformer tap changers: fixed off-load (DETC) vs. dynamic on-load (OLTC) types, their operational roles,…


Test Equipment for the Next Generation of Power Semiconductors

Test Equipment for the Next Generation of Power Semiconductors

Modern power semiconductors demand advanced test equipment. As devices optimize for higher voltages and lower losses, precise, robust testing is…


Distribution Transformers and Voltage Regulation—Part 2: Step-Down Transformers

Distribution Transformers and Voltage Regulation—Part 2: Step-Down Transformers

Distribution transformers shape network voltage and fault behavior. Learn how winding configurations, vector groups, and grounding methods impact…


Distribution Transformers and Voltage Regulation—Part 1: Introduction

Distribution Transformers and Voltage Regulation—Part 1: Introduction

Learn how distribution transformers bridge medium-voltage feeders and end-use equipment, ensuring stable voltage through strategic placement,…


Primary Distribution Systems—Part 4: Fault Levels and Short Circuits

Primary Distribution Systems—Part 4: Fault Levels and Short Circuits

Learn about fault levels and short-circuit protection for medium-voltage distribution. We’ll examine current sources, fault types, symmetrical…


Primary Distribution Systems—Part 3: Overhead and Underground Choices

Primary Distribution Systems—Part 3: Overhead and Underground Choices

Overhead vs. underground power distribution: Learn the cost, reliability, and design trade-offs for medium voltage power systems across urban,…


Primary Distribution Systems—Part 2: Protective Devices, Automation

Primary Distribution Systems—Part 2: Protective Devices, Automation

Protective devices, such as reclosers and sectionalizers, along with automation, can quickly detect, isolate, and restore service after faults.


Distribution System Fundamentals—Part 3: Emerging Trends

Distribution System Fundamentals—Part 3: Emerging Trends

This article provides analysis steps and implementation strategies for distributed energy resource behavior, transportation electrification, and…


Distribution System Fundamentals—Part 2: Topologies and Reliability

Distribution System Fundamentals—Part 2: Topologies and Reliability

Explore distribution topologies, from simple radial feeders to complex networks, and examine reliability metrics, common causes of outages, and…


Why Oscilloscope Bandwidth Specs Are Often Misleading for HV Measurement

Why Oscilloscope Bandwidth Specs Are Often Misleading for HV Measurement

Oscilloscope bandwidth can quietly change high-voltage transients and hide the real dv/dt stress, not just probe capacitance or ground inductance.


Substation Commissioning and Testing—Part 4: SCADA and Comms Systems

Substation Commissioning and Testing—Part 4: SCADA and Comms Systems

Learn how modern substation commissioning extends beyond plant checks to verify SCADA, comms, cybersecurity, and data integrity for safe operation…


Substation Commissioning and Testing—Part 3: Field Testing

Substation Commissioning and Testing—Part 3: Field Testing

Substation field testing ensures long-term reliability. It verifies instrument transformers , circuit breakers, and protection relays against…


Substation Commissioning and Testing—Part 1: Scope and Workflow

Substation Commissioning and Testing—Part 1: Scope and Workflow

Learn how substation commissioning verifies design intent and system integration through FAT, SAT, cold (pre-energization), and hot…


Smart Substations and Digitalization—Part 5: Future Trends

Smart Substations and Digitalization—Part 5: Future Trends

This article discusses trends in AI-assisted smart substations, including sensor density, autonomous and self-healing networks, and inverter-based…


Smart Substations and Digitalization—Part 4: Data Analytics and ML

Smart Substations and Digitalization—Part 4: Data Analytics and ML

Learn how smart substations can leverage IEC 61850 and CIM for data flow. Advanced analytics and machine learning (ML) can turn high-res data into…


Smart Substations and Digitalization—Part 3: Comms and Data Integration

Smart Substations and Digitalization—Part 3: Comms and Data Integration

This article focuses on practical implementation details for communications and data integration in smart substations and reviews predictive…


Multiphysics Simulation and Simulation Apps in Power Electronics

Multiphysics Simulation and Simulation Apps in Power Electronics

Learn how multiphysics-based digital twins are increasingly used to capture interactions in electrification applications, enabling more accurate…