Uji Kelayakan Minyak Jarak Sebagai Bahan Isolasi Cair Pada Transformator
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Abstract
The power transformer in the substation has transformer oil. This transformer oil functions as an electrical separator in the primary and secondary coils so that there is no breakdown voltage. The transformer oil comes from non-renewable mining products. One of the efforts that we can do to minimize the use of fossil oil is the use of vegetable oils. Vegetable oil can be used as an alternative liquid insulation in power transformers. However, vegetable oil has less stable chemical properties and has a high viscosity. The purpose of the study was to determine the feasibility of castor oil to be used as an alternative to liquid insulation using Shell Diala B transformer oil as a comparison. The method used in this study is to make direct observations of the object under scrutiny to observe the actual situation in the field. The results that have been obtained after testing the castor oil sample are the water content value of 2.38 mg/kg, the density of 0.911 gr/cm³, the viscosity value of 48.70 cSt and the breakdown voltage value of 34.47 kV.
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