变压器绝缘油中金属钝化剂Irgamet 39的消耗规律

Consumption Law of Metal Passivator Irgamet 39 in Transformer Insulating Oil

为深入研究变压器绝缘油中金属钝化剂的消耗原因并借以制定和优化金属钝化剂的添加方案,研究了不同温度下变压器油中金属钝化剂Irgamet 39消耗规律以及同一温度下二苄基二硫(DBDS)质量分数、2,6—二叔丁基对甲酚(DBPC)质量分数、油的运行情况、纸面积、铜表面积以及铜的腐蚀情况等因素对于变压器油中Irgamet39消耗规律的影响。采用高效液相色谱(HPLC)法检测油中的Irgamet 39质量分数。结果表明:温度是Irgamet 39消耗的决定因素,低温下(≤60℃)Irgamet 39几乎不消耗,高温下(≥90℃)Irgamet 39消耗迅速;DBDS、运行油、绝缘纸、未腐蚀的铜和已腐蚀的铜会增加Irgamet 39的消耗;DBPC对于Irgamet 39的消耗几乎无影响。结合Irgamet 39的作用机理可以看出,除高温下的自身分解和与铜形成保护膜阻止腐蚀性硫对铜的腐蚀外,变压器中的油环境和绝缘纸是Irgamet 39消耗的重要影响因素。

In order to fitrther study the reason of metal passivator consumption so as to formulate and optimize the adding scheme of metal passivator, we studied the consumption law of metal passivator Irgamet 39 in transformer oil at different temperatures and the effects of DBDS （dibenzyl disulfide） concentration, DBPC （2,6-di-tert- butyl-4-methyl phenol） con- centration, paper surface area, copper surface area, oil state, and copper corrosion degree on lrgamet 39 consumption in transformer at the same temperature. Irgamet 39 concentration in transformer oil will be determined by the high perfor- mance liquid chromatography（HPLC） method. The results show that temperature is a key factor in Irgamet 39 consumption, lrgamet 39 concentration remains stable at low temperatures （below 60℃）, and Irgamet 39 concentration decreases rapidly at high temperatures（above 90 ℃）. Paper, uncorroded copper, corroded copper, running oil, and DBDS will increase the consumption of Irgamet 39. DBPC has little effect on the consumption of Irgamet 39. The mechanism of Irgamet 39 action can be seen, in addition to the high temperature of its own decomposition and the formation of protec- tive film to prevent the formation of corrosion of the copper corrosion of copper, the transformer oil and insulation paper are important factors affecting the consumption of Irgamet 39.