Study Of Moisture Effect On Breakdown Voltage And Structure Of Mineral And Palm Oil Based Insulation Oils

Norhashidah, Mohd Najri (2015) Study Of Moisture Effect On Breakdown Voltage And Structure Of Mineral And Palm Oil Based Insulation Oils. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Theoretically, insulation oil of transformer purposely used to cool down the power transformer when heat dissipation condition occurs during operation. Most of power transformer failure is caused by physicochemical reaction such as heat, moisture content and oxygen in transformer oil. Therefore, the aim of this project is to measure Breakdown Voltage (BdV) and to obtain the spectral characteristic for mineral and vegetables-based transformer insulating oil under moisture influence. Besides that, relationship between BdV and Fourier Transform Infrared Spectrometry (FTIR) test are studied. In order to achieve objectives of this project, two type of testing are used namely BdV and FTIR. The standard of IEC 60156:1995 and ASTM D2144 are used as a guidelines in testing procedure and confirmation of the finding. The result shows that influence of moisture gave effect of the breakdown voltage and spectral characteristic in mineral and vegetables-based transformer insulating oil. It also showed that BdV and FTIR test have similarities in determining the condition or performances of transformer insulating oil.

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