Reasons for acetylene in transformer oil
2019/4/21??????view:
Chongqing Zhongjing Filtration Equipment Manufacturing Co., Ltd. specializes in the production of transformer oil vacuum oil filters, the causes of acetylene production in transformer oil. 1. The transformer oil itself contains acetylene. 2. The oil is superheated and decomposed locally by electric heating, forced filtration or friction of mechanical oil delivery system, resulting in hydrogen, acetylene, methane and other gases.
Transformer oil vacuum filter separates water, gas and low fractions from oil by evaporation. Its separation ability is related to working vacuum, oil temperature, oil film evaporation area and evaporation time. For each oil filter, its separation ability is relatively fixed. However, due to the strong binding force of very small amount of water, gas and oil molecules, the separation ability of general vacuum oil filter is limited, so no matter how long the filter oil is, when it reaches the limit equilibrium, there is still a small amount of gas and water in the oil, which is the reason why many oil filters can not completely remove acetylene. It is a normal phenomenon that the transformer oil in operation contains acetylene, which is a parameter to analyze the fault state of transformer.
The causes of excessive acetylene in oil filter are as follows: 1. The unstable quality of heater causes excessive local heat load, which leads to excessive acetylene content. 2. Acetylene is produced in the process of oil pump transportation, which is due to the hard material used in the oil pump. 3. Acetylene is produced in the process of oil filtration. When oil is filtered, workers are welding nearby, which results in excessive acetylene content.
The acetylene in the new transformer oil is the residue of some oil filters because of their imperfect performance; therefore, the transformer oil filters with excellent performance can ensure that acetylene is zero. Transformer oil filter can not damage the basic components and antioxidant properties after treatment, and meet the new oil standard. At the same time, it improves the insulation and safety performance of the equipment. Reduce the medium loss factor to meet the new oil standard.
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