Transformation

Power Transformers

Dielectric Fluids

Advantages of Headspace Hydrogen Monitoring for Network Transformers

INTRODUCTION The utilization of online dissolved gas analysis monitoring has proven to be one of the most effective predictors of overall transformer health and condition. Monitoring can vary greatly from nine gas to single gas systems to best suit the customers application when considering...

Electrical Transformers

The Dissolved Gas Analysis Toolkit

Dissolved gas analysis: addressing the challenges of collecting samples BY DONAL SKELLY, GE’s Digital Energy business Dissolved gas analysis (DGA) is a technique for identifying and quantifying the gas formed in oil-filled electrical equipment because of either the natural aging of oil and paper...

Utility Transformers

Metal Enclosed Electrical Bus, The Lifeline to the Transformer, What You Should Know and Why It’s Important to Your Bottom Line

Brief Summary:The purpose of this article is to educate power plant operators and maintenance personnel on the importance of metal enclosed electrical bus, an often-overlooked system critical component spanning from the generator to the main transformer, carrying the system’s full current....

Electrical Substations

Substation Testing & Maintenance

End-to-End Monitoring Systems Feeds Situational Awareness

For many years the limit for normal apparatus loading was based on the maximum nameplate rating or an arbitrarily set value, called ‘the red line’. On-line monitoring of power transformers and circuit breakers for condition assessment has gained popularity over the past twenty-five...

Physical Security & Monitoring

Ensuring Compliance vs Building Resilience

The realization that the vast majority of substations have significant security vulnerabilities was crystalized after the Metcalf incident of April 2013, during which unknown assailants caused the failure of 17 transformers at the Silicon Valley PG&E transmission substation in Metcalf,...

Substation Protection

Storm-Hardened Switchgear

How to protect electrical equipment from Mother Nature BY ROBERT A. MURPHY, Trayer Engineering Corporation The U.S. National Weather Service called Hurricane Sandy the most destructive storm of 2012’s unusually active Atlantic hurricane season. Sandy delivered unprecedented damage across a wide...

Home Transformation

Protective Relay Frustrations

Solving misoperation with line parameter measurements

BY WILL KNAPEK, OMICRON USA

Between 80 to 90 percent of all power system faults involve ground. Many protective relaying schemes depend on ground distance protection to accurately sense and locate ground faults on multi-terminal sub-transmission and transmission lines. In addition to the need of dependable ground fault detection, protective relay devices must provide adequate selectivity to avoid overtripping for faults outside of its zone of protection and other...

Transformation Articles

Fig.1: Fundamental model with different layers of conductivities (S/m) assigned along with color codes

T&D Buyer’s Guide Companies

Transformation Videos

Transformation Shared Media

Catalog

Electricity Today T&D Magazine

Power Transformers

Advantages of Headspace Hydrogen Monitoring for Network Transformers

The Dissolved Gas Analysis Toolkit

Metal Enclosed Electrical Bus, The Lifeline to the Transformer, What You Should Know and Why It’s Important to Your Bottom Line

Electrical Substations

End-to-End Monitoring Systems Feeds Situational Awareness

Ensuring Compliance vs Building Resilience

Storm-Hardened Switchgear

Transformation

Protective Relay Frustrations

Transformation Articles

Computer Simulation of Grounding Applications

Circuit Breaker Lubrication

New options for insulation systems in power transformers

Grid-Scale Battery Storage Systems and Their Impact on Substation Operations

Industry and Education

Utilizing Fault Resistance to Test Distance Relays

T&D Buyer’s Guide Companies

Transformation Videos

Power Outages in the United States

Vibro-Acoustic as a Fast Diagnostic Tool for On Load Tap Changers

Introducing Critter Guard

Transformation Shared Media

Electricity Today T&D Magazine - Electrical Reliability Systems Special Issue. 2022.

Electricity Today T&D Magazine - Electrical Substations Special Issue. 2021.

Electricity Today T&D Magazine - Critical Power Reliability Special Issue. 2021.

Working Together for a Smarter Grid

Integrating the North American Power Grid

Communications, Data Hardening, and the Smart Grid

Smart Transformers: Enhancing Grid Efficiency and Reliability

Gas Dehydration

Lightning Strikes