Our Story
At Reliant Asset Diagnostics, we are committed to delivering precise, data-driven insights that help businesses safeguard the reliability and efficiency of their high-value electrical assets. Our core expertise lies in Dissolved Gas Analysis (DGA) and transformer diagnostics, and we are actively expanding into a full suite of electrical testing services tailored for today’s complex energy infrastructure.
With a deep foundation in utility-scale power generation—both renewable and non-renewable—we understand the critical nature of asset reliability across solar farms, wind facilities, and conventional power plants. Our real-world experience working alongside Independent Power Producers (IPPs), SCADA systems, and the maritime industry gives us a unique, versatile perspective that few diagnostic partners can offer.
Our approach is rooted in industry best practices and strict compliance with global standards, including IEEE C57.155-2014 and ASTM D3612, ensuring every test and analysis meets the highest levels of accuracy and trust. Whether supporting engineers, contractors, facility managers, or power producers, we provide the actionable insights needed for proactive maintenance, risk reduction, and long-term asset performance.
At Reliant Asset Diagnostics, our mission is simple:
To be your trusted partner in power system reliability, wherever energy flows—on land or at sea.
Why do Dissolved gas analysis on transformer oil
The primary function of transformer oil is to insulate the conductive parts and dissipate heat from heated components. However, during transformer operation, the oil is exposed to several detrimental factors, including high voltage, elevated temperatures, moisture, and oxidation. Over time, these factors cause both the oil molecules and the cellulose in the solid insulation to break down. This decomposition process releases gases that enter the transformer oil, including methane, ethane, ethylene, acetylene, propane, propylene, butene, and butane. Depending on the type of defect developing within the transformer, the specific gases and their concentrations may vary. This characteristic forms the basis of chromatographic dissolved gas analysis (DGA). In this way, transformer oil not only serves its role as an insulator and coolant but also provides valuable diagnostic data on emerging defects. The key task is to accurately interpret this data to identify potential issues.
The chromatography method, first used in 1903 for studying plant pigments, eventually became widely adopted across various branches of chemistry, including gas chromatography.
Today, chromatographic dissolved gas analysis is favored due to several key advantages:
- Oil samples can be taken without disconnecting the transformer.
- The method is applicable for evaluating the condition of transformers as well as other oil-filled electrical equipment.
- It allows for the identification of a wide range of transformer defects.
- It detects issues at an early stage, which other methods may not identify.
- The method reveals not only the type of defect but also the extent of damage.
Since the 1960s and 1970s, DGA has been used for diagnostic evaluations of transformer health, with standards such as ASTM D3612 and IEC 60567 now governing its implementation.
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