Electrical Transformers
Power Transformer Failures
Case Study: Rapid Changes in Bushing Health
Electrical Transformers
The Distribution Transformer - Critical Power System Component
By R.W. Hurst, Editor
A distribution transformer is a critical component of the electrical power system, used to reduce the voltage of electrical energy for electric power distribution to end-users. It plays a vital role in voltage regulation and load management, ensuring the efficient and reliable delivery of electrical energy. Different distribution transformers are available to meet different needs, and regular maintenance is critical to ensuring their efficient and reliable operation. The choice depends on...
Related Articles
Case Study: Rapid Changes in Bushing Health
IntroductionContinuous online monitoring of bushings provides real-time information which can result in the early detection of a possible failure. Challenge: A Major AlarmA prominent U.S. utility was looking for a way to improve system reliability for their 138kV assets. They researched and...
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 actively breaking down the insulation before you try to use a triangle, pentagon, or gas ratio method to identify a fault type. Otherwise, you are diagnosing random...
Optimal Transformer Efficiency Using Weighted Average
In order to improve the efficiency of electrical distribution in commercial buildings, the US Department of Energy (DOE) introduced regulations with more stringent minimums on transformer efficiencies in January 2016. This was covered under the Code of Federal Regulations 10 CFR Part 431.192 and...
Transformer Diagnostic Testing
Transformer diagnostic testing: standards to diagnose equipment with Sweep Frequency Response analysis BY VOLNEY NARANJO, Megger Sweep Frequency Response Analysis (SFRA) has become a powerful tool in advanced power transformer assessments and probably one of the main and first tools used to...
New Complex Windings Configuration Set Up In Magnetic Programs
Read the full article in our Transformer Technologies Special Edition
Special Power: ‘Flexible Transformer’ Could Become The Grid’s New Superhero
The world is mobilizing to meet net-zero emission targets over the coming decades, and it seems that everywhere you look, countries are erecting wind turbines in the fields and off the coasts, switching from coal to natural gas, adding hydropower storage, and studying the next generation of nuclear...
Major Utility Implements Innovative Approach to Transformer Health Assessment with Reliability-based Dissolved Gas Analysis
One of the largest U.S. electric power utility companies, with nearly 50,000 megawatts of generating capacity,over 36,000 miles of high-voltage distribution lines, and over 7 million retail electricity customers, has an electric power network that includes close to 6,500 high-voltage...
Hydrogen Monitoring in the Transformer Headspace Compared to Traditional In Oil Monitoring
The utilization of online dissolved gas analysis monitoring has proven to be one of the most effective predictors of overall transformer health and condition. A wide range of monitoring systems are available, offering multiple costs, features, and benefit combinations. Hydrogen MonitoringSingle or...
Case Study: Rapid Changes in Bushing Health
IntroductionContinuous online monitoring of bushings provides real-time information which can result in the early detection of a possible failure. Challenge: A Major AlarmA prominent U.S. utility was looking for a way to improve system reliability for their 138kV assets. They researched and...
Hydrogen Monitoring in the Transformer Headspace Compared to Traditional In-Oil Monitoring
By Chris Rutledge, Product Manager, Dynamic Ratings, Inc. 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. A wide range of monitoring systems are available, offering multiple...