Prevention of failures in electrical transformers

Electrical transformers are used to connect the different components of a wind farm. They are a key element in the development of the electrical industry. Thanks to them it is possible to realize, in a practical and economical way, the transport of electrical energy over long distances. over long distances. Therefore, the prevention of failures in electrical transformers is a crucial task in the context of the wind power industry.

Transformers are a cornerstone of power generation. power generationAs such, maintaining their health and performance levels is critical to everything from keeping the lights on to industrial production. They are also among the most valuable assets in power grids, making up around 60% of a substation's capital costs.

Failures in electrical transformers are inevitable. When this occurs, the temperature of the oil inside increases at the site of the failure. This results in the formation of gases, the type and quantity of which will indicate the nature of the failure, allowing owners or operators to take corrective action. However, there are methods to try to mitigate these failures.

One of the most widely used methods for the prevention of faults in electrical transformers and therefore their maintenance, and thus to avoid unplanned outages, is the so-called dissolved gas analysis or DGA. DGA(Dissolved Gas Analysis). The gas levels in the transformer oil can detect a failure at a very early stage and the rate of change in these levels can be used to determine its severity. 

Antonio Fernández, Area Manager at Grupo Álava

The quantity of gases dissolved in the oil of a transformer is the main indicator of electrical or thermal anomalies of the equipment and its accessories.

The fault gases in a DGA are hydrogenmethane, methane, ethane, ethylene, acetylene, carbon monoxide and carbon dioxide.

With more than 25 years of experience, we are a company specialized in predictive maintenance in the wind sector with IoT software solutions, and extensive experience in engineering and analysis services to improve the performance of assets and extend their useful life.

In addition, we offer an IioT platform platform for predictive maintenance and industrial processes with a focus on the wind power market. Together with a team of expert maintenance analysts, we exploit the power of algorithms and artificial intelligence to reach incalculable limits. Our goal is to provide you with key information about your assets to facilitate your decision making. We want to help you improve your processes so you can save costs.