Power Transformers & Electrical Substations

Power Transformers

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 varying magnetic flux in the core, which produces varying electromotive force (EMF) or voltage in the...

Transformer Testing & Maintenance

Why event-based fault type identification is better than a sample-by-sample approach

Introduction Fault type identification is an important step in dissolved gas analysis (DGA). When a significant amount fault gas production is detected in a transformer, we want to know what kind of physical condition could be responsible for the gassing. Knowing the type of fault can help to...

Why Net-Zero is Cheaper for the UK

The United Kingdom has set an ambitious target to achieve net-zero greenhouse gas emissions by 2050. This goal necessitates a comprehensive transformation of various sectors, including energy, transportation, and agriculture. While the environmental imperatives are clear, there is growing evidence...

Electrical Substations

Substation Technologies

Climate Change Strains Global Electricity Networks: A Wake-Up Call

The increasing frequency and intensity of climate-related disasters are placing unprecedented strain on the world's electricity networks, with severe implications for global energy security. According to a recent Bloomberg report, the effects of climate change are pushing many electricity grids to...

Physical Security & Monitoring

BIRDS AND SUBSTATION OUTAGES

Birds wreak havoc at hundreds of substations every year, undermining system reliability and costing millions. Bird incursions can have disastrous results: equipment damage, outages and expensive cleanups due to corrosive droppings.Even worse: the traditional deterrents provide only temporary,...

Substation Technologies

Circuit Breaker Lubrication

Developing circuit breaker lubrication procedures BY RICK YOUNGBLOOD, Doble Engineering Company Circuit breaker analyzers are used to determine operating speeds and velocity. This information enables the tester to determine if a breaker is safe to place back into service. The data recorded by a...

Home Transformation

Transformation

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 #1 cause of outages, according to a report from the American Public Power Association (APPA) – even more common than storms or vegetation.
A single substation outage can cost tens of thousands of dollars in equipment repair or replacement, man hours and more. The annual cost to utility...

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