The design of 1 transformer effect on the performance of transformer oil in operation: coil windings of the transformer, high voltage coil distance and the distance between the transformer power plant size in relation to the strength, and the strength of electric field affects the transformer oil oxidation stability; transformer body size affect the loading amount of transformer cooling design directly related; to the operating temperature and the circulation velocity of transformer oil, thus affecting the oxidation stability of transformer and electrical properties.

2油的质量：推荐使用高品质的变压器可以保证较长的使用寿命，建议向油品供应商索要产品合格证，并进行采样以验证所购油品的典型质量数据，同时保留这些初始数据以便于运行期间采样的数据进行比对，这对于判断油品的变化趋势非常重要。当心购进的变压器油需要与原有不用的油品混合使用时，应严格按GB/T14542《运行中变压器油维护管理导则》要求进行混油试验，混油试验通过后方可使用。

The quality of the oil 2: recommended transformer using high quality can ensure long service life, ask for advice to the oil supplier product certification, and the quality of the typical sampling data to verify the purchase of oil, while retaining these initial data during the sampling period in order to run the data, it is very important for judging the trend of oil. Beware of buying oil mixed with the original transformer oil need not use, should be strictly in accordance with the "GB/T14542" management guidelines for transformer oil maintenance requirements for oil blending test run, oil blending test before use through.

3变压器运行工况对运行中变压器油性能的影响：影响运行中变压器油性能重要的因素是变压器的运行工况。变压器的运行温度过高、局部高温过热、局部放电和漏气等均会加速变压器的热氧化反应，从而进一步影响变压器油的电器性能。

3 the influence of transformer operation condition on the performance of transformer oil in operation: the most important factor that affects the transformer oil capacity is the operation condition of transformer. Transformer operating temperature is too high, local high temperature overheating, partial discharge and leakage will accelerate the thermal oxidation of transformer, thereby further affecting the transformer oil electrical performance.