China Supplier ASTM D1500 Transformer Oil Color Tester
China Supplier ASTM D1500 Transformer Oil Color Tester provided by Lucyelec, it's used to observe darkening of oil by comparing it to previous samples of oil from the same transformer. Transformer oil colour is determined by means of transmitted light and given a numerical value based on comparison with a series of color standards. Noticeable darkening oil indicates either contamination or that arcing is taking place. Please contact Lucyelec for more details.