Transformer Testing & Maintenance

Zensol new instrument for OLTC testing

According to CIGRE A2.34, the dynamic resistance measurement or DRM (OFFLINE) is a test that offers diagnostics for several diverter or selector switch malfunctions such…
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Latest Electrical Industry News

hydrocarbon gas emission

Advancements in Dissolved Gas Analysis: Risk Assessment

In general, the purpose of periodic screening with DGA for power transformers is risk assessment. Is any transformer likely to fail in service? If so,…
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power plant

RMS Energy Responds to the Changing Engineering Needs of Customers

Today’s electrical infrastructure in the United States might have been viewed as a work of science fiction when the first commercial power grid was conceived…
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hydrocarbon gas emission

Advancements in Dissolved Gas Analysis: Data Quality

IntroductionThere is more to DGA interpretation than comparing the latest gas concentrations to limits in a table or plotting them in a triangle or pentagon…
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Transient Analysis of Power Transformers Using Finite Element Method

A transformer relies on electromagnetic induction through coils to transfer electric energy between two or more circuits. Varying current in the transformer’s primary winding creates…
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Normalized Energy Intensity chart

Advancements in Dissolved Gas Analysis: NEI & Gassing Events

One of the most important steps when looking at DGA data is to decide whether the data support the existence of a fault that is…
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The Role of Thermal Imagining in Today’s Electrical Utilities Sector

In today’s society we are faced with many obstacles, one of these obstacles is the high cost of electricity around the world.  Electricity prices for…
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magazine_sep_oct_2023_article_3

Dielectric Voltage Testing – Standard Methods

There are two standard methods from ASTM International: D877, Standard Test Method for Dielectric Breakdown Voltage of Insulating Liquids Using Disk Electrodes, and D1816, Standard…
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Transformer Testing & Maintenance Articles

How to Improve Transformer Protection

How to Improve Transformer Protection

Using symmetrical components for fault discrimination in differential protection BY IMRAN RIZVI, ABB Inc. Classical…
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Smart Transformers: Enhancing Grid Efficiency and Reliability

Smart Transformers: Enhancing Grid Efficiency and Reliability

The evolving demands of modern power grids necessitate the adoption of advanced technologies that can…
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Advantages of Headspace Hydrogen Monitoring for Network Transformers

Advantages of Headspace Hydrogen Monitoring for Network Transformers

INTRODUCTION The utilization of online dissolved gas analysis monitoring has proven to be one of…
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Enhancing Transformer Resilience: Fire Barriers and Safety Measures in Modern Substations

Enhancing Transformer Resilience: Fire Barriers and Safety Measures in Modern Substations

The Growing Concern of Transformer Fire Risks An Electrical Substation Transformer is a critical component of…
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Advancements in Dissolved Gas Analysis: Accounting for Gas Loss

Advancements in Dissolved Gas Analysis: Accounting for Gas Loss

Dissolved gas analysis (DGA) in transformers is a very successful periodic screening method to identify…
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