Mahavir Singh
Dr. Vishavdeep Jindal
Abstract
In the existing situation, increased power consumption has put a significant burden on transformers, while power utility companies are cutting back on capital investments. Therefore, fault-free operation of the existing transformers becomes a principal concern for industrial consumers in ensuring their reliability. The main objective of this paper is to investigate and compare critical properties of insulating oil (mineral oil), such as breakdown voltage (BDV), water content, interfacial tension, and acidity, by using IEC, ASTM, and IS standard test methods. Repeatability and intermediate reproducibility tests of currently accepted standard test methods have also been performed to ensure accurate results. This paper will help professionals and analysts evaluate the process accurately based on the reported results to strengthen quality assurance.
Keywords- Mineral oil, transformer, breakdown voltage, precision, repeatability.