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分析变压器油枕与油位检查的重要性!

来源:https://www.jnwdsh.com/ 日期:2021-04-22 发布人:woduanshihua
电力设备中的变压器油主要有绝缘、散热和消弧的作用。
Transformer oil in power equipment mainly has the functions of insulation, heat dissipation and arc suppression.
为使变压器油箱在任何气温及运行状况下均充满油,而且为预防变压器油的体积随着油温的变化而膨胀或缩小,变压器需要设置油枕。油枕起储油和补油作用,能保证油箱内充满油。使变压器本体与空气的接触面减小,减缓油的劣化速度。
In order to make the transformer oil tank full of oil under any temperature and operating conditions, and to prevent the volume of transformer oil from expanding or shrinking with the change of oil temperature, the transformer needs to be equipped with oil conservator. The conservator is used for oil storage and replenishment to ensure that the oil tank is full of oil. The contact surface between transformer body and air is reduced, and the deterioration speed of oil is slowed down.
油枕的侧面装有油位计,可以监视油位的变化。常用的油位计有以下指针式和浮球式等类型。
An oil level gauge is installed on the side of the conservator to monitor the change of oil level. The commonly used oil level gauges are pointer type and floating ball type.
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1、指针式油位计上面一般有-30℃、+20℃、+40℃三个正常油位线,根据这三个标志可以判断是否需要加油和放油;标上+40℃表示安装地点变压器在环境高温度为+40℃时满载运行中油位的高限额线,油位不得超过此线, 如果在停止状态下油温为+20°,此时检查油位计的油面应不高于+20°的标志。-30℃表示环境为-30℃时空载变压器的低油位线,不得低于此线,若油位过低,应加油。
1. The pointer type oil level gauge generally has three normal oil level lines of - 30 ℃, + 20 ℃, + 40 ℃. According to these three marks, it can be judged whether it needs to add oil and drain oil; the mark of + 40 ℃ indicates the high limit line of oil level in full load operation of the transformer at the installation site when the high ambient temperature is + 40 ℃, and the oil level shall not exceed this line, If the oil temperature is + 20 ° in the stop state, check that the oil level of the oil level gauge should not be higher than the mark of + 20 ℃. -30 ℃ means the low oil level line of load transformer when the environment is - 30 ℃, which should not be lower than this line. If the oil level is too low, oil should be added.
2、浮标式油位计工作原理是采用悬浮的原理,油位计里面有个浮标, 当油面到浮标时则有一个标志,例如绿色,未到有另外一标志, 例如红色。浮球式油位计随油位的变化,浮球上下变化。
2. The working principle of buoy type oil level gauge is to use the principle of suspension. There is a buoy in the oil level gauge. When the oil level reaches the buoy, there is a sign, such as green, and there is another sign, such as red. With the change of oil level, the floating ball changes up and down.