www中文字幕-wwxx全免费视频-ww久久-ww毛片-ww欧美-ww亚洲ww亚在线观看

Your Position: Home > News > Industry News

Source and treatment of moisture in transformer insulating oil

2020/1/19??????view:

  Source and treatment of moisture in transformer insulating oil

  1、 What is transformer insulating oil?

  Insulating oil is mainly used to insulate the transformer from arc extinction. The main properties of insulating oil are low temperature performance, oxidation stability and medium loss. Low temperature performance refers to the fluidity necessary for the oil to automatically convection in electrical equipment, derive heat and cut off the arc current instantaneously under low temperature conditions.

  Generally, it is required that the viscosity of insulating oil is small at low pour point and low temperature. In electrical equipment, oil is oxidized by heat and oxygen under the action of electric field for a long time. The oxidation stability of the oil with antioxidant and metal passivator is better. Dielectric loss reflects the degree of dielectric loss of oil products under AC electric field, which is generally expressed by tangent value (Tan δ) of dielectric loss angle (δ).

  2、 Source of moisture in transformer insulating oil.

  In the process of packaging, transportation and storage management, if the transformer insulating oil is not properly kept, it may enter into the water. In addition, the petroleum products have a certain degree of water absorption, which can absorb and dissolve a part of water from the atmosphere or in contact with water. The water absorption capacity of the insulating oil is related to its composition and temperature environment. Generally speaking, the water dissolving capacity of insulating oil is about 40 × 10 "at 20 ℃. The water content of transformer oil can be reduced to about 10 × 100 through industrial dehydration device. In addition, the moisture absorption of oil increases linearly with the air phase humidity and oil temperature. For example, when the relative humidity of the oil sample is 40%, the water content in the oil is 80 × 10 ~, when the relative humidity is 80%, the water content in the oil is 200 × 10 ~. The water absorption of oil products with different chemical composition can reach the difference of dozens of 10 ". The more aromatic hydrocarbon components in oil, the higher the moisture absorption of oil products. The presence of some polar molecules in oil can also increase the moisture absorption of oil products.

  Water exists in insulating oil in three ways:

  1 floats. Water is suspended in oil in the form of water droplets.

  ② Floating. It refers to the extremely small water drop of water evenly distributed in the oil.

  ③ Dissolved. Water is dissolved in oil.

  The water content (absorption) of insulating oil is related to several factors:

  (1) It is related to the chemical composition, temperature, exposure time and aging degree of oil;

  (2) The water content of oil increases with the increase of oil temperature and decreases with the decrease of oil temperature;

  (3) With the increase of aromatics content in oil products, the water absorption capacity of oil also increases.

  3、 Treatment of moisture in transformer insulating oil.

  A new type of oil purification equipment is developed by using high efficiency transformer insulating oil filtration and purification equipment, vacuum separation and drying principle, separation engineering and precision filtration technology. It is an ideal equipment for filtration and purification of seriously deteriorated insulating oil.

  High efficiency transformer insulating oil filtration and purification equipment is suitable for power plant, power station, power company, power transformation industry, metallurgy, petrochemical, machinery and other industries. It is mainly applicable to the purification of various insulating oil, such as high-voltage transformer, current transformer, capacitor, circuit breaker, oil switch, etc. The equipment can clean the deteriorated transformer, transformer, oil switch and other transformer oil on-line live operation without power failure. It can not only Degas, dehydrate and remove impurities, but also remove impurities, acid value and dielectric loss in insulating oil, and restore the service performance of oil. All of them can be filtered and purified to remove the trace moisture and ensure the safe operation of the transformer.

  For more information, please refer to the product catalog and cases on the company's official website. If you need product information and videos, please open the contact information - call or add a telephone wechat.

主站蜘蛛池模板: 午夜久久久久久网站 | 欧美一级毛片欧美毛片视频 | ntr中文字幕亚洲综合 | 黄色日韩视频 | 在线不卡日本 | 欧美性视频xxxxxxxx | 天天添天天射 | 欧美视频精品一区二区三区 | 一二三四视频6+1在线观看免费 | 亚洲 日本 欧美 中文幕 | 国产小视频免费 | 狂野猛交xxxx吃奶 | 久久精品国产99国产精偷 | 国产免费做爰午夜视频 | 男女一区二区三区免费 | 日日舔 | 欧美激情综合网 | 日韩在线观看免费 | 日本三区四区免费高清不卡 | 国产成人精品午夜在线播放 | 国产亚洲精品美女 | 有色视频在线观看免费高清 | 九九热亚洲精品综合视频 | 色噜噜狠狠狠综合曰曰曰 | 一级女性全黄生活片免费 | 国产v片成人影院在线观看 国产v片在线播放免费观 | 激情爱爱的免费视频 | 国产高清精品一区 | 欧美视频网站 | 99精品99 | 女网址www女影院 | 97色伦图片97色伦图影院久久 | 好色tv黄色在线看 | 久久国产高清视频 | 亚洲一区二区三区久久 | 日韩视频一区二区三区 | 国产骚熟 | 免费看国产精品麻豆 | 亚洲欧美韩国日产综合在线 | 91狠狠操 | 在线中文字幕一区 |