Fault Diagnosis in Oil Immersed Transformers: Dissolved Gas Analysis (DGA)

 It is very important to know why we need to check for faults in oil filled transformers. This ensures long lives and good performance of these critical electrical machines. Transformers carry electricity from one location to another, converting high voltage electricity to lower voltages that can be used in homes, businesses and factories. They can close down if transformers aren’t maintained properly, or if problems aren’t identified promptly, and cause costly repairs. This is where a technique known as Dissolved Gas Analysis (DGA) lends a hand. DGA is an early detection method that is available.

​

As an example of how DGA aids in maintaining the operation of transformers: This technique is able to discover issues before they are major problems. Low Voltage Circuit Breakers the gases in the transformer’s oil which provides important insight as to how the transformer is performing. By monitoring the types and quantities of gases, workers can detect signals of problems like overheating, arcing or small electrical discharges. This allows them to correct problems before they become worse, saving time and money while maintaining the reliability of the transformer.

Identifying shared problems with use of Outdoor Voltage Transformers takes a large piece of the cake of fault finding. Typical gases found in transformer oil include hydrogen, methane, ethylene, and acetylene. Each gas can indicate specific problems, such as overheating or issues with the insulation. By examining the levels and patterns of the gas over time, workers can learn where the problem is coming from and how severe it is. This enables them to make intelligent decisions about maintenance that allows them to avoid causing further damage.

If one wishes to apply DGA to successful finding faults, careful consideration must be given. The first step is to understand what the normal gas levels are for the transformer, when it is behaving the way it should. Periodic DGA testing should be conducted to detect changes and catch problems early. Medium Voltage Circuit Breakers such as the examination of electrical systems and visual inspections, provides a more comprehensive picture of the transformer’s health. By employing these methods in combination, workers can increase the accuracy and reliability of their fault checks.

Ensuring reliability of transformers through early fault testing and DGA tests is highly essential to minimize downtime and run the process smoothly. Spotting problems early and repairing them on the spot could lower maintenance costs and extend the life of the transformer. EUNVIN provides DGA test, contributing to maintaining our customers' transformer health and performance. 

All In all, It is very important to test oil-filled transformers for any issues in order to insure that these dangerous, (likely HIGH Voltage) devices are dependable, durable. By using DGA as a tool for early fault detection, technicians can take the proper measures to correct the issues. EUNVIN's experience in DGA testing provides valuable customer input on how their transformers perform which in turn saves money and enhances reliability. Investing in checking for faults and in maintaining transformers and other devices therefore makes it possible for their owners to safeguard their property and to assure a reliable supply of electricity to all.