New Gas Chromatograph Column and Transformation Oven for Transformer Oil Analysis

A new gas chromatograph column and a transformation oven for analysis of transformer oil are described in the present paper. The transformation oven is made using a metallic capillary with the length of 3cm. The analysis of seven compounds, including H₂, CO, CH₄, CO₂, C₂H₄, C₂H₆ and C₂H₂, in the transformer oil be completed with only one column and by only one injection using this method. Figure 1 is the GC chromatogram of seven compounds in the transformer oil. Table 1 shows the transformation rates of CO and CO₂ in different transformation temperatures and column temperatures, respectively. The transformation oven designed has high transformation rate, long life and thus can reduce the cost of the instrument.