自然油

500kV自然油循环变压器冷却回路的改进

Improvement on Cooling Circuit of 500 kV Natural Oil Circulation Transformer

在对500kV自然油循环变压器冷却器控制回路的运行维护工作中，发现了其在设计和整定上存在着一定的缺陷。

In the operation and maintenance of cooler control circuit of 500 kV natural oil circulation transformer , some faults are found in its design and setting .

自然油循环电力变压器线圈冷却结构换热性能研究

Study on Thermal Performance of Natural Oil Circulation Power Transformer Winding

目前电网上运行的电力变压器大部分为油浸式变压器，其中80%以上是采用自然油循环的冷却方式。

And about 80 % of these transformers use natural oil circulation .

自然油循环电力变压器内部流动与传热分析

Analysis of Flow and Heat Transfer Inside a Power Transformer Cooled by Nature Oil Circulation

本文对于自然油循环变压器线饼温升的计算方法提出了新的意见。

This thesis brings some new proposals for the computation of temperature rise in nature oil transformer .

自然油循环变压器较以往强油循环变压器铜油温差加大，热问题就更加突出。

The temperature difference between copper and oil of natural oil circulation power transformer is bigger than that of forced oil circulation .

大型自然油循环导向结构变压器自然风冷却和强风冷却温升计算研究

The Calculation Research of Temperature Rise of Large Natural Oil Circulation Power Transformer with Directed Structure with the Means of Natural Air Cooling and Forced Air Cooling

本文建立了一种能够计算大型自然油循环导向冷却结构变压器线圈温度场的方法。

This paper sets up a kind of method to calculate the temperature field of the winding in large natural circulation power transformer with oriented cooling structure .

为了解决变压器的噪音扰民问题和油流带电问题，在大型变压器上也开始采用自然油循环冷却方式。

In order to solve the noise-disturbing-citizen problem and remove the static electricity in oil flow , natural oil circulation has been wildly used in large power transformer .

采用自然油循环冷却方式的直接后果是铜油温差加大，变压器的散热问题更加突出。

The direct consequence of adopting oil natural oil circulation cooling is increase of temperature between copper and oil , so transformer cooling problems become more and more prominent .

自然油循环的冷却方式不仅广泛应用于电力网中的中小型电力变压器，也会在在大型电力变压器低负荷和低环境温度时应用。

The cooling method of nature oil circulation is not only widely used in small-middle type power transformer , but also used in large type power transformer with low load and low ambient temperature .

本文建立了传热与流动数学模型，完成了大型自然油循环导向冷却方式变压器的油流分布和绕组温度场计算。

This paper sets up the mathematic model of heat transfer and oil flow , and finishes the calculation of oil flow distribution and temperature field of winding in large natural oil circulation power transformer with oriented cooling structure .

许多人都发现的好处，自然鸸鹋油，了解和使用的原住民数千年之久。

Many people are discovering the benefits of natural Emu Oil , known and used by the aborigines for thousands of years .

油膜水滴是使用冷空气、微量可自然降解油剂和少量水经复合喷雾法形成的可自然分解的新型绿色切削液。

Cooled air , minimum botanic oils and little water were used to form new cutting fluids of oils on water ( OoW ) by means of combined mist-jet .

因此，本文应用冷风、可自然降解油剂和水经喷雾形成油膜附水滴加工液来替代传统加工液。

As a result , this paper developed new machining fluids of oils on water ( OoW ) to replace traditional machining fluids by mist-jet with cooled air , botanic or ester oils and water .

自然PET三文鱼油，为ω-3必需脂肪酸，这是重要的营养物质的皮肤和毛发的自然源-和整体健康。

Only Natural Pet Salmon Oil , a natural source for Omega-3 essential fatty acids , which are important nutrients for the skin and coat – and for overall health .

自然，无油压缩机必然被选择为仪用空气供给者。

Oil-free compressors of course , are the logical choice for instrument-air supplies .

自然电位在油气勘探中的应用及其新生异常分析

The application of spherical potential ( sp ) in the oil-gas exploration and its regenerative anomaly analysis

本文通过对自然电位在油气勘探中应用实例的分析，肯定了自然电位法的实际效果。

The actual effect of SP method is affirmed from the example of application in petroleum exploration .

肯德基中国公司说，他们使用自然健康的油烹制鸡类食品，这种油不含反式脂肪酸。而肯德基在美国使用的很多炸鸡用油都是含有反式脂肪酸的人造油料。

KFC Corp ( China ) said it cooks its fried chicken in the healthier natural oil , which does not contain harmful trans fatty acids as many as found in the artificial cooking oils KFC uses in the US .

自然冷却高燃点油变压器温升计算方法

A method of temperature rise calculation for natural cooling high ignition point oil transformer

自然电位法寻找油气藏效果及影响因素

Effect and influential factors sp for oil

应用自然电场法寻找油气藏的试验

Testing hydrocarbon by natural electric field

能否依据自然电位异常判断油气藏存在？

Can we affirm the existence of a hydrocarbon reservoir from the anomaly of natural electric potential ?

自然电位勘探是油气藏地球物理勘探的重要内容之一，研究的重要内容是自然极化机理。

Self-potential is one of important criteria in geochemical exploration . The important content of self-potential study is the mechanism of natural polarization .

针对小油气田和自然条件恶劣的油气田开发，多相混输技术的发展为油气开发节省了大量的开支。

Compared with the development of small oil-gas field and bad natural condition ones , multiphase technology save a lot of expenses for gas exploration .