Department of Chemistry, AMET University, Chennai
Monitoring and inspection of inhibitor content in transformer insulating oil has been a routine test for power utilities. Although new uninhibited transformer insulating oil contains naturally occurring inhibitors, these inhibitors could deplete over time during operation. Once the inhibitor depleted completely, the oil would start to deteriorate at a faster rate and eventually could lead to faults in transformer. The regular technique for deciding the weight rate of inhibitor in transformer oil is through Fourier Transform Infrared (FTIR) spectroscopy. Be that as it may, this technique is research center based, which implies oil inspecting at site is important and the oil tests should be transported to the lab. The need for oil inspecting, combined with the high cost of FTIR gear have prompted high upkeep cost. In this way, this work researched the likelihood of utilizing single wavelength or waveband optical identification for the assurance of weight rate of inhibitor in transformer oil utilizing bright unmistakable close infrared (UVVIS-NIR) spectroscopy. Consequence of the work demonstrates that the examples with inhibitor delivered an absorbance top at 1403nm. The peak absorbance of the spectral response is proportional to the weight percentage of inhibitor content that was measured using the conventional method, which is IEC 60666. An equation was derived to model the peak absorbance and weight percent of inhibitor content (%IC) of the oil and it was verified with additional oil sample with a known weight percent of Inhibitor content.
Transformer oil, Inhibitor Content, UV-Vis Spectroscopy
