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了解缺少变压器油的危害性!

来源:https://www.jnwdsh.com/ 日期:2021-04-30 发布人:woduanshihua
在对运行中配电变压器进行日常巡视检查中,常会发现一些器体内变压器油油位不在规定范围内。
In the daily inspection of distribution transformers in operation, it is often found that the oil level of some transformers is not within the specified range.
而当变压器内的油下降到变压器外壳以下时,变压器油和空气的接触面加大,油极易吸收水分,氧化变质,使变压器油的耐压强度降低,破坏线圈的绝缘性能。
When the oil in the transformer drops below the shell of the transformer, the contact surface between the transformer oil and the air increases, and the oil is easy to absorb moisture and oxidize, which reduces the withstand voltage strength of the transformer oil and destroys the insulation performance of the coil.
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缺油严重时,使变压器导电部位对地或相与相之间的绝缘降低,造成相间或对地击穿放电,继续使用会使油温急剧上升,缩短变压器的寿命甚至烧毁变压器。
When the oil shortage is serious, the insulation of the conductive parts of the transformer to the ground or between phases will be reduced, resulting in the breakdown discharge between phases or to the ground. Continued use will cause the oil temperature to rise sharply, shorten the service life of the transformer, and even burn the transformer.
因此为保证变压器能够正常安全运行,需要及时查找原因后并给变压器加油。
Therefore, in order to ensure the normal and safe operation of the transformer, it is necessary to find out the cause in time and then refuel the transformer.