Fall 2026 Cover StoryDGA Monitoring for Renewable-Energy Transformers: Gas Rate-of-Change Analysis

Cover Story

DGA Monitoring for Renewable-Energy Transformers: Gas Rate-of-Change Analysis

Power transformers used in renewable-energy applications are subjected to elevated thermal, electrical, and mechanical stresses due to the dynamic nature of solar and wind generation. Although these transformers are often specifically designed to withstand such operating conditions and achieve their

Shahryar Farhang and Volney Naranjo, Megger

Featured Stories

Electrical Hazard Risk Assessment on EV Supply Equipment and Chargers

Electric vehicles (EVs) are a large part of the traffic infrastructure due to the industrial revolution in electrical technology and the paradigm shift in the motor vehicle industry. To support

Bibek Karki, IPS PowerServe

Demystifying On-Line Partial Discharge Monitoring

Reliability and safety are words that come up frequently when discussing modern power networks, and for good reason. Electrical systems today are carrying higher loads, operating with tighter margins, and

Bobby Ellison, IPEC USA

The Evolution of Standards to Support Advancing Grid Technologies

The electric power industry is undergoing the largest transition since widespread energization began more than a century ago. Inverter-based resources, data centers, and rapidly changing load profiles are exposing operating

Howard W. Penrose, MotorDoc LLC

NETA World is available in print, online, and in Flipbook or PDF formats.

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Powertest27

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Columns

Dan Hook President's Desk

CBS Field Services

NETA President

Meeting the Challenges of a Changing Power Landscape

Paul Chamberlain

Asplundh Engineering Services, LLC

Safety Corner

Vehicle Safety for the Workforce

Ron Widup

Vector Power

NFPA 70E and NETA

History Does Not Repeat Itself, But It Rhymes

Morgan Gieni

Magna IV Engineering

Tech Quiz

Electrical Equipment Advanced Technology

Michael Labeit

ASRC Power

In the Field

On Surge Arresters and Power Factor

Jacob Rioux

Hood Patterson & Dewar

Tech Tips

Grounding Test Requirements and Equipment: Know Before You Go

Steven Turner

Consultant

Relay Column

Designing Adaptive Trip Logic for Large Generators

Lee Howard

Hood Patterson & Dewar

Tech Tips

Grounding Test Requirements and Equipment: Know Before You Go

Special Supplements

NEW RELEASE!

Emerging Technologies Is the Electrical Power Systems Industry Resource for the Latest Advancements in the Field.

Read Current + Past Articles

NEW RELEASE!

Training Talk Is the Electrical Power Systems Industry Resource for Technical and Professional Training.

Read Current + Past Articles

Electrical Power Safety Is the Industry Resource on Electrical Power Updates, Training, and Equipment.

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INsightS & Inspiration

Stephanie Patterson: Learning, Leadership, and Lasting Impact

This issue of NETA World’s “Insight and Inspiration” series features Stephanie Patterson, Senior Manager, External Training & Partnerships, at Qualus. Patterson leads the strategy, development, and execution of training programs that support industry professionals, clients, and partner organizations. Her responsibilities include managing training initiatives, building and maintaining strategic partnerships, identifying new training opportunities, and ensuring the delivery of high-quality learning experiences that align with industry standards and business objectives. Recently

NETA

Volunteer Spotlight

Volunteer Engagement Committee: Fostering Participation

NETA offers many volunteering opportunities for interested parties to get involved with the association and share their feedback and expertise. This new Volunteer Spotlight series will feature volunteers across all NETA committees, showcasing their contributions, motivations, and interests. Our first Volunteer Spotlight appropriately features the Volunteer Engagement Committee. The committee works collaboratively with NETA leadership and all other NETA committees to identify engagement gaps, support recruitment efforts, and enhance communication

Nenad Pasic, Kristen Schmidt, Nishat Maredia, Adis Talović

Looking for a NETA Accredited Company?

WHY HIRE A NETA ACCREDITED COMPANY? Ensuring safety and reliability by maintaining a safe, reliable electrical power system requires more than routine maintenance. It requires objective testing, expert analysis, and proven industry practices. Hiring a NETA Accredited Company as an independent third-party testing agency provides organizations with the confidence that their electrical infrastructure is being evaluated to the highest recognized standards. NETA Accredited Companies specialize in acceptance testing, maintenance testing,

NETA

Corporate Alliance Corner

Advancements in Industry: The ABCs of Your PQA: A Field Guide to Configuring Power Quality Analyzers

The goal of any good power system is simple in theory: Deliver clean power to the loads it serves. In practice, however, “clean” quickly becomes a relative term. Spend enough time around power quality measurements, and one thing becomes apparent: Many of the disturbances blamed on incoming utility power originate inside the facility itself. Wiring practices, grounding methods, and interconnected loads are often larger contributors to so-called dirty power than

Gregg Wong, AEMC

CAP Spotlight: Group CBS: Helping the Power Industry Meet Surging Demand

NETA Corporate Alliance Partners (CAPs) are industry-leading companies that have joined forces with NETA to work together toward a common goal: improving quality, safety, and electrical system reliability. In this continuing series highlighting NETA’s CAPs, the 2026 NETA World Corporate Alliance Spotlight features perspectives from leaders across the electrical power industry. These “View from the Bridge” interviews explore the trends, challenges, and opportunities shaping the future of electrical testing and

NETA

NETA NEWS

Discover Strategies That Capitalize on the Future of Power at EPIC26

Join us at EPIC26, in Fort Worth, Texas, October 11–13, 2026, to connect with industry thought leaders, share your expertise, exchange groundbreaking ideas, and play an active role in shaping the future of the electrical power industry at this premier knowledge-sharing summit. How will power infrastructure and workforce challenges impact

NETA

A New Era for NETA World: Strategic Transition to Strengthen Our Industry Voice and Expand Our Reach

For decades, NETA World (NW) has served as the authoritative technical publication for the electrical testing industry, delivering peer-driven knowledge, advancing safety, and reinforcing the standards that define our profession. As our industry evolves in complexity, scale, and technological

Bryant Phillipis, NETA, and Mike Hellman, EndeavorB2B

From Search Engines to Answer Engines: What to Know About AEO

For years, organizations focused on search engine optimization (SEO) to improve their visibility online. The goal was straightforward: Rank highly in search results so prospective customers could find your website, products, and expertise. Today, however, the way people search for information is changing rapidly. Instead of typing a few keywords

Erin Hallstrom, EndeavorB2B

NETA Elects Stephanie Patterson and Ken Peterson to Board of Directors

NETA’s programs, standards, and industry initiatives are powered by people who give generously of their time, expertise, and perspective to serve on NETA’s Board of Directors and committees. NETA recently elected Stephanie Patterson and Ken Peterson to serve on the Board of Directors—two professionals whose leadership, service, and commitment to

NETA

Gemitech Joins the Ranks of NETA Accredited Companies

NETA is pleased to welcome Gemitech to its growing network of NETA Accredited Companies. Headquartered in Québec, Canada, Gemitech specializes in providing testing, commissioning, maintenance, diagnostics, and technical support for electrical power systems. As part of Groupe SGE (Société Générale d’Électrotechnique), the company serves a wide range of industrial, commercial, institutional, utility, and energy-sector clients throughout Canada, helping organizations ensure the reliability, safety, and performance of their critical electrical infrastructure.

NETA

The Business Case for Becoming a NETA Accredited Company

Recognized throughout the industry as the gold standard for electrical power system acceptance testing and maintenance, NETA Accreditation validates both a company’s technical capabilities and its commitment to safety, quality, and independent service. NETA Accredited Companies (NACs) play a vital role in advancing electrical power reliability and safety through third-party, independent electrical testing services. Critical facilities, commercial enterprises, industrial plants, utilities, healthcare campuses, and data centers often specify NETA testing

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Industry Topics

Residual Voltage in Power Cables: A Little-Known Hazard in Field Testing

Verifying the integrity of power cable insulation is an essential step to ensure the reliability and safety of electrical systems. Applied-voltage tests are widely used before commissioning new cables and during maintenance and diagnostic activities throughout their service life. These tests enable identification of insulation defects, dielectric degradation, or installation issues that could lead to operational failures, supply interruptions, or safety hazards. Therefore, high-voltage testing constitutes a fundamental tool for

Nilson Baroni Jr and Daniel Bento, Baur USA Corp; Danilo de Souza, UFMT; and Marcelo Plantier, Baur Brazil

Techniques for Conducting Fall-of-Potential Testing in Adverse Conditions

Fall-of-potential (FOP) testing is widely regarded as one of the most reliable methods for evaluating grounding system performance. Under ideal conditions, the procedure is straightforward: Electrodes are driven into the soil at prescribed intervals, measurements are recorded, and resistance values are calculated with a high degree of confidence. In practice, however, technicians often encounter less-than-ideal environments. Urban and industrial sites often feature sprawling paved surfaces or concrete jungles that prevent

Andreas Burkart, AEMC, and Matthew J. Robinson, Sigma C Power Services

Transformer Ground Differential Element Behavior with CT Error and Misoperation Event Analysis

This paper analyzes the ground differential or restricted earth fault (REF) element for transformer protection and compares its performance against various levels of current transformer (CT) error and saturation. An empirical analysis was performed to determine the limits of today’s common digital relays as they experience CT errors. This can help engineers develop general guidelines for designing protection systems related to REF elements. The impact of auxiliary CTs was also

Seth Barnes and Tim Condra, Tennessee Valley Authority; Joshua Hughes, Qualus; and Akram Saad, University of Tennessee at Chattanooga & Quanta Technology

A Partial Discharge Case Study from an Insurance Perspective

I have spent many months researching how, as an equipment insurer, to enhance our understanding of underwriting risk by improving the assessment of electrical risk at medium- and high-voltage facilities through predictive analytics. The answer I found was partial discharge (PD) testing that uses touchless acoustical methods with intrinsic AI capability. Partial discharge is a localized voltage discharge within an insulating medium, often caused by aging, electrical stress, or environmental

Vincenzo Pagliuca, The Hartford Steam Boiler Inspection and Insurance Company

Artificial Intelligence in Practice: Lessons and Applications for NETA Accredited Companies (Part 1)

Artificial Intelligence (AI) is rapidly influencing industries worldwide, and the electrical testing field is no exception. This two-part article presents a comprehensive perspective on the role of AI within the electrical testing industry. It offers insights into future applications for NETA Accredited Companies, while considering opportunities and challenges AI may bring to the electrical testing industry.

Valer Banushi and Adis Talović, RESA Power

NETA QEMC Partners

WHY HIRE A NETA-VERIFIED QEMC AND QEMW TEAM? Facility owners, utilities, contractors, and industrial operators need qualified organizations and personnel to perform maintenance in support of NFPA 70B. One of the most effective ways to achieve this objective is to partner with an electrical contractor that is a NETA Qualified Electrical Equipment Maintenance Company (QEMC) staffed by Qualified Electrical Equipment Maintenance Workers (QEMWs). These designations provide independent verification that both

NETA

Specifications & Standards

ANSI/NETA Standards Update

ANSI/NETA MTS–2023 REVISION UNDERWAY The revision of ANSI/NETA MTS-2023, Standard for Maintenance Testing Specifications for Electrical Power Equipment and Systems, is underway with an anticipated completion and publication release in March 2027 at PowerTest 2027. This revision introduced a new Working Group model, bringing together subject matter experts from across the electrical testing industry to conduct early-stage comment review and develop three new sections. The initiative serves as a pilot

NETA

Advancing Electrical Power System Standards

Electrical industry standards are built by experienced professionals who share their knowledge, review proposed changes, and work together to improve safety, reliability, and system performance. NETA is proud to be part of that process. Through its Technical Representation Steering Committee (TRSC), NETA participates in the development of standards, codes, and recommended practices that affect electrical testing, maintenance, commissioning, and workplace safety. This involvement helps strengthen ANSI/NETA standards while supporting consistency

NETA

INTERNATIONAL NETA ACCREDITED COMPANIES

Transformer Testing: Moving Beyond the Pass/Fail Metric

Transformer testing should not end when a value is marked acceptable. Each measurement is a diagnostic clue. When insulation resistance, winding resistance, turns ratio, excitation current, and leakage reactance are interpreted together, they create a clearer picture of transformer health and help engineers energize equipment with confidence. Transformer testing is often viewed as a sequence of individual tasks. In many field reports, each result is recorded, compared with an

Khaled Shadi Morshed, Commissioning Services International

EPIC PREVIEW

The Technical Realities of Renewable Energy Integration

As renewable energy continues its rapid expansion, the grid is evolving faster than traditional designs, standards, and maintenance practices can adapt. Inverterbased resources are introducing unfamiliar electrical behaviors that are directly affecting equipment reliability, protection schemes, and testing methods across the industry. Against this backdrop, EPIC26 convenes this October in Fort Worth, Texas, bringing together power professionals to explore how renewable integration is reshaping the grid—and what engineers, technicians, and

NETA

When Diagnostics, Testing, and Field Services Come Together

Sigma C and MVA Collaborate to Help Avoid a Prolonged Outage

In today’s power industry, maintaining transformer reliability requires more than a single test or diagnostic technique. The most effective asset management programs combine oil analysis, electrical testing, engineering evaluation, and field service expertise to provide a complete picture of equipment condition.

Sigma C Power Services and MVA

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