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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...

Substation Maintenance Best Practices

Improving substation maintenance best practices for greater success BY BUDO MILOVIC, DV-Power Currently, substation maintenance—regular or emergency—operations and best practices must fit the utility’s goal of accomplishing more with less, in order to maximize assets and minimize outages. A...

The Fight Against Animal-Caused Power Outages

Every day across the country, animals enter substations for warmth, food, security, or simply out of curiosity. In many areas, wildlife intruding into power equipment has become the leading cause of outages – even more common than storms or vegetation.A single substation outage can cost tens...

Substation Testing & Maintenance

DGA graphs

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 just by-products of deteriorating insulation caused by abnormalities such as
hot spots or electrical discharges. The abnormalities are what might fail the transformer. If the transformer loses fault gases, the...

Related Articles


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The Fight Against Animal-Caused Power Outages

Every day across the country, animals enter substations for warmth, food, security, or simply out of curiosity. In many areas, wildlife intruding into power equipment has become the leading cause of outages – even more common than storms or vegetation.A single substation outage can cost tens...

Utilizing Fault Resistance to Test Distance Relays

Taking power grid protection to an all-new level BY JASON BUNEO & RENE AGUILAR, Megger The testing of distance relays has evolved from testing simple electromechanical relays to the newest modern microprossesor relays. Most modern relays employ advanced algorithms that not only compare the...


Cyber Threats on the Rise Invest Now to Boost Power Grid Defenses

Critical infrastructure security is in the national spotlight. In 2020, the power grid and energy sector was the third most targeted sector for cyber-attacks, up from ninth place in 2019, and the threats are growing more sophisticated. The Biden administration recently issued a national security...

Condition Monitoring in an Age of Modernization How (and why) to Adapt

The widespread application and use of electricity, which may now seem like a simple commodity, is considered one of the greatest technical developments of all time. However, keeping up with today’s demand for power is anything but simple: a vast amount of resources goes into maintaining a...

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CONDITION MONITORING IN AN AGE OF MODERNIZATION How (and Why) to Adapt

The widespread application and use of electricity, which may now seem like a simple commodity, is considered one of the greatest technical developments of all time. However, keeping up with today’s demand for power is anything but simple: a vast amount of resources goes into maintaining a...

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Substation Focused on Environmental Design

One of the important trends in design of new overhead lines over the past 20 years has been development of structures and designs that are less obtrusive and more pleasing visually. Much the same process has also been going on at substations. For example, even 25 years ago, efforts had already been...

magazine_may_june_2023_article_3

The Fight Against Animal-Caused Power Outages

Every day across the country, animals enter substations for warmth, food, security, or simply out of curiosity. In many areas, wildlife intruding into power equipment has become the leading cause of outages – even more common than storms or vegetation.A single substation outage can cost tens...

magazine_may_june_2023_article_2

Latest Power Outage Statistics and Causes Tracker

As the world’s technological landscape continues to grow and the demand for electricity increases, so too do the occurrences of power outages. Check out Critter Guard’s curated list where we track power outages statistics and data below or check out our power outages infographic. Power...

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