A transformer is a power device that uses the principle of electromagnetic induction to convert AC energy into parameters such as voltage and current. The oil-immersed transformer immerses the iron core and the winding together in a fuel tank filled with insulating oil to enhance insulation and improve cooling and heat dissipation conditions. When there is a serious overload, transformer winding short circuit, insulation damage, etc. inside the transformer, the insulating oil is subjected to high temperature or arcing, and a large amount of hydrocarbon mixed gas is generated by thermal decomposition, causing the pressure inside the transformer to rise sharply, and then causing structural damage of the transformer tank (primary Transformer explosion). Therefore, the transformer should be regularly tested for the turn ratio and winding performance. Through the comprehensive analysis of the results of the ratio test and the winding test, the fault phenomenon of the transformer is judged in advance.
After the primary transformer explodes, the insulating oil, mixed gas and oil mist are released violently through the rupture port of the transformer tank. The insulating oil leaks from the transformer and forms a liquid pool on the ground. When it is ignited, a pool fire occurs. When the leaked pyrolysis product mixture gas and oil mist are mixed with air and ignited, a secondary explosion occurs. When these conditions occur in a confined or congested area, it can cause a very strong explosion and pose a threat to people and equipment.
Kingrun series transformer turn ratio tester and transformer winding resistance tester will provide reliable and accurate data support for transformer maintenance and inspection, identify and locate transformer fault points in advance, and guarantee long-term reliable operation of the transformer.
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