Power Transformers & Electrical Substations

Power Transformers

Advancements in Dissolved Gas Analysis: Accounting for Gas Loss

Dissolved gas analysis (DGA) in transformers is a very successful periodic screening method to identify transformers that may be having problems. It is a symptom-based assessment of health, rather than a condition-based assessment. That is because the gases themselves do not cause failure, but are...

Transformer Monitoring

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...

Transformer Testing & Maintenance

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 and built in New York’s lower Manhattan in the 1880s. But it didn’t take long for fiction to become fact. Thomas...

Electrical Substations

Physical Security & Monitoring

The Copper Theft Pandemic

Around the time of the financial crisis of 2008, precious metals pricing began to change drastically. Beginning in late 2007, a trend of price instability began to be seen for gold, silver, platinum, and (although not a precious metal in the traditional sense), copper. The price of all these metals...

Physical Security & Monitoring

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...

Substation Testing & Maintenance

An Overview of Substation Maintenance: Its Evolution and Key Testing Practices

As electrical systems age, operating costs increase while reliability dwindles. Given most utilities and industrial facilities are highly capital intensive and have limited financial and other resources to make wholesale equipment replacements, regular maintenance is critical for controlling the...

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Transformation

Preventing Losses Due to Wildlife Contacts in Electrical Substations

Intrusion of wildlife into electric substations is a problem experienced by electric utilities worldwide. In the United States, substation outages caused by wildlife contacts create a financial impact of approximately $20 to $30 billion annually based upon recent EPRI research. This impact is the combination of costs to customers as well as cost to utilities of restoration and repair. Thus, the utilities investment costs for installation of wildlife contact prevention can go a long way....

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