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探析变压器油的参数值

在变压器、互感器使用生产过程中,绝缘油受到污染的主要原因有以下几个方面:
In the production process of transformers and transformers, the main reasons for the pollution of insulating oil are as follows:
1、济南变压器油真空注油罐和绝缘油的输油管道不清洁。生产过程中,变压器绝缘油是通过专用的输油管道注入到真空注油罐内。在注油过程中,由于绝缘油受加热、冷却温度变化的影响,吸附在内壁上的绝缘油会老化,变质。内壁可能受到空气中的灰尘和空气中水分侵蚀,变得不清洁。
1 、 vacuum oil tank and insulating oil pipeline is not clean. In the production process, the transformer insulation oil is injected into the vacuum oil tank through a special oil pipeline. In the process of oil filling, the insulation oil adsorbed on the inner wall will be aged and deteriorated due to the influence of the heating and cooling temperature of the insulating oil. The inner walls may become unclean by dirt and moisture in the air.
2、变压器、互感器的油箱,储油柜和瓷套的内部没有清洗干净,或没有烘干,当绝缘油注入到变压器、互感器内部时,受到了污染。
2, transformers, transformers, tanks, oil storage cabinets and porcelain sets are not clean inside, or no drying, when the insulating oil into the transformer and transformer internal, it was contaminated.
3、在真空注油处理过程中,变压器、互感器器身内部水分在真空加热处理中没有完全除去,没有达到预期的效果。变压器,互感器的器身不清洁将绝缘油污染。
3, in the process of vacuum oiling, the water in the transformer and transformer body is not completely removed in the vacuum heating process, and has not achieved the desired results. Transformer, instrument transformer body is not clean, insulating oil pollution.
济南变压器油
4、电力变压器,互感器铁心上的铁锈等微小杂物没有清除干净,将绝缘油污染。这是绝缘油受到污染的一个很重要的原因。现在的油浸式电力变压器,互感器都采用叠片式铁心,铁心直接和绝缘油相接触,铁心上的脏物,非常容易地被带到绝缘油中去。
4, transformers, transformers, transformers, such as rust and other small debris is not cleared, insulating oil pollution. This is a very important reason for the pollution of insulating oil. Today's oil immersed power transformers, transformers are laminated core, the core directly with the insulation oil contact, the core of the dirt is very easy to be brought to the insulating oil.
液压油基本参数
Basic parameters of hydraulic oil
外观(色度)油品的颜色,往往可以反映其精制程度和稳定性。对于基础油来说,一般精制程度越高,其烃的氧化物和硫化物脱除的越干净,颜色也就越浅。
Appearance (color), oil color, often can reflect the degree of refinement and stability. For base oil, the higher the general refining degree is, the more clear the hydrocarbon oxides and sulfides are removed and the lighter the color is.
粘度反映油品的内摩擦力,是表示油品油性和流动性的一项指标。在未加任何功能添加剂的前提下,粘度越大,油膜强度越高,流动性越差。
Viscosity reflects the internal friction of oil, which is an indicator of oil content and liquidity. Under the premise of no additional functional additives, the greater the viscosity, the higher the oil film strength, the worse the liquidity.
粘度指数表示油品粘度随温度变化的程度。粘度指数越高,表示油品粘度受温度的影响越小,其粘温性能越好,反之越差。
A viscosity index indicates the extent to which oil viscosity varies with temperature. The higher the viscosity index, the lower the viscosity of the oil is affected by the temperature, the better the viscosity temperature performance, the worse the contrary.
济南变压器油哪家好闪点是表示油品蒸发性的一项指标。油品的馏分越轻,蒸发性越大,其闪点也越低。反之,油品的馏分越重,蒸发性越小,其闪点也越高。
Flash point is an indicator of evaporation of an oil product. The lighter the fraction of oil, the greater the evaporation, and the lower the flash point. On the contrary, the heavier the fraction of oil, the smaller the evaporation, the higher the flash point.
凝点是指在规定的冷却条件下油品停止流动的最高温度。油品的凝固和纯化合物的凝固有很大的不同。油品并没有明确的凝固温度,所谓“凝固”只是作为整体来看失去了流动性,并不是所有的组分都变成了固体。凝点高的油不能在低温下使用。相反,在气温较高的地区则没有必要使用凝点低的油。
Point refers to the highest temperature in the cooling conditions prescribed under the oil to stop the flow of the. The solidification of oil products is very different from the solidification of pure compounds. The oil does not have a definite freezing temperature. The so-called "coagulation" is simply a loss of fluidity as a whole, and not all components become solid. High pour point oil can not be used at low temperature. On the contrary, in the area of high temperature is not necessary to use low pour point oil.
酸值、碱值和中和值酸值是表示润滑油中含有酸性物质的指标,单位是mgKOH/g。
Acid value, base value and neutralization value, acid value are indicators that indicate that the lubricating oil contains acidic substances, and the unit is mgKOH/g.
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