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油隙
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  oil gap
     It is known that the insulating barrier and electrode coating can hinder the formation of the "impurity bridge" in the oil gap and improve the uniformity of electric field.
     在油隙的电极间隙放置一定尺寸的绝缘屏障、或给正电极包扎数层绝缘覆盖 ,均能改善油隙的电场均匀度 ,阻止“杂质小桥”形成 ,限制泄漏电流 ,有效提高油隙的绝缘水平。
短句来源
     The electric stress along the electric force line were transferred into mean value of every oil gap, compared it with permit curve so as to realize the reliability evaluation.
     即以电场数值计算结果为出发点,将场域中沿电力线各单元的电场强度转换为油隙的平均电场强度,并与许用值曲线进行对比,以实现变压器主绝缘结构的可靠性评价。
     The Inflnence of X ray on the DC Discharge in Cavities of Oil gap
     X射线对气隙及油隙中直流电压放电影响
短句来源
     In this paper, the theory of small oil gap was used in design of the main insulating structure of the 10、35kV power transformer. The new main insulating structure was systematically and experimentally studied with the numerical calculation of winding end electrical field and the breakdown experiment on transformer model.
     本文将小油隙理论用于10、35kV变压器主绝缘结构设计中,应用绕组端部电场的数值计算、主绝缘结构模型的工频和冲击击穿试验,对所提出的新型10、35kV变压器主绝缘结构进行了试验研究.
短句来源
     Under DC voltage the restraint and time lag phenomena of partial discharge (PD) in cavities or oil gap by X ray irradiation were investigated.
     直流电压下 X射线对气隙、油隙放电的激发过程存在明显的“滞后”现象 ,即 :正极性电压下 X射线照射首先抑制放电的发生 ;
短句来源
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  “油隙”译为未确定词的双语例句
     Effect of Insulating Barrier and Electrode-coating on the Dielectric strength of Oil-gap
     绝缘屏障与电极覆盖对油隙耐电强度的影响
短句来源
     Experimental and numerical calculation results of the temperature rise of an oil-filled natural convection transformer winding with directed-blockwashers arepresented in this paper. A comprehensive test was performed using a non-inductivewinding with imbedded thermocouples.
     分别对自然油循环变压器线圈水平油隙尺寸、线圈中有无导向设置、导向区个数以及油流方向等多种因素对线圈温升分布,特别是对热点温升的影响规律进行了试验研究和数值模拟。
短句来源
     While the hot-spot temperature rise is complicatedlyeffected by the amount of blockwashers in the winding, the parallel duct size, thenumber of discs in one pass and the direction of oil flow, the cooling conditionbesides of the transformer, etc.
     但线圈最热点温升却受一个线圈中导向区间数、每个导向区线饼数、油流方向、水平油道尺寸和外部冷却条件等多种因素的影响。 线圈的水平冷却油隙尺寸。
短句来源
     Based on large power transformer's insulating structure, two test models were built for producing partial discharges in solid and in transformer oil. The effect of X-ray's irradiation on the characteristics of partial discharges was investigated experimentally.
     根据电力变压器的绝缘特点,本文设计并制作了气隙性局部放电和油隙性局部放电两类试验模型,试验研究了X射线激励对这两类局部放电特性的影响。
短句来源
     For the partial discharges in oil, the repetition rate and the maximum amplitude of discharge pulses are increased under X-ray's irradiation, which are caused by ionizing the gas from oil discharges and by surface electron emission on the electrode's surface. But X-ray's irradiation has no effect on the inception voltage of the partial discharge in oil.
     对于油隙性局部放电,通过对油隙放电中产生的气体和金属电极表面的作用,X射线的照射可以增加油隙性局部放电的脉冲重复率和最大放电量,但是对起始电压没有影响。
短句来源
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  相似匹配句对
     Oil of Bay
     月桂
短句来源
     Oil of cardamom
     小豆蔻
短句来源
     THE TRANSIENT FLOW IN NATURALLY FRACTURED RESERVOIRS WITH THREE-POROSITY SYSTEMS
     三重介质裂-藏中的渗流问题
短句来源
     The Inflnence of X ray on the DC Discharge in Cavities of Oil gap
     X射线对气中直流电压放电影响
短句来源
     A Pretective Device of Spark Gap
     电花防护器件
短句来源
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  oil gap
To increase the stiffness of the bearings the oil gap is controlled to constant with PI-control.
      


In this paper, the theory of small oil gap was used in design of the main insulating structure of the 10、35kV power transformer. The new main insulating structure was systematically and experimentally studied with the numerical calculation of winding end electrical field and the breakdown experiment on transformer model. And then, some improved new main insulating structures of 10、35kV power transformet are offered.

本文将小油隙理论用于10、35kV变压器主绝缘结构设计中,应用绕组端部电场的数值计算、主绝缘结构模型的工频和冲击击穿试验,对所提出的新型10、35kV变压器主绝缘结构进行了试验研究.从而提出了合理的10、35kV变压器主绝缘结构尺寸.

A finite-element method has been used to calculate the electric field strength in 2-dimensional field and to analyze the electric field distortion caused by oil-paper compound insulation structure in this paper. In the worst situation,the maximum of electric field strength(Emax) in oil gap and paper corner is 2.0 and 1.7 times respectively as much as those in even medium field,and the conclusion given in this paper can be used for reference in design for transformer insulation and inanalysis of insulation...

A finite-element method has been used to calculate the electric field strength in 2-dimensional field and to analyze the electric field distortion caused by oil-paper compound insulation structure in this paper. In the worst situation,the maximum of electric field strength(Emax) in oil gap and paper corner is 2.0 and 1.7 times respectively as much as those in even medium field,and the conclusion given in this paper can be used for reference in design for transformer insulation and inanalysis of insulation faults in power transformer.

利用有限元法计算了二维场中的电场强度,并分析了油纸复合绝缘引起的电场畸变。在最不利的情况下,油隙和纸角中的场强最大值Emax分别为均匀介质场强的2.0倍和1.7倍。研究结果对电力变压器绝缘结构设计和故障分析具有参考价值。

A valid section to section insulation model of 500 kV transformer for lighteningimpulse voltage test is proposed by analyzing the electric field with two dimensional finite element method. The insulation of the model is tested by means of simulated lightening impulse voltage. The result shows that the maximum density of electric field existing in the section to sectionarea is found in the wedged oil gap formed by transformer oil and solid insulating materials.Some curves of the relationship between breakdown...

A valid section to section insulation model of 500 kV transformer for lighteningimpulse voltage test is proposed by analyzing the electric field with two dimensional finite element method. The insulation of the model is tested by means of simulated lightening impulse voltage. The result shows that the maximum density of electric field existing in the section to sectionarea is found in the wedged oil gap formed by transformer oil and solid insulating materials.Some curves of the relationship between breakdown voltages (50% breakdown voltage and minimum breakdown voltage) and structural dimensions of the model insulation(the thickness of turnto turn insulation and the distance of section to section insulation) are presented.

应用二维四节点有限元电场数值分析的方法,通过对500kV电力变压器段间绝缘雷电冲击试验模型关心区域内电场分布的比较,提出了一种500kV变压器段问绝缘雷电冲击试验模型的简化方案,并对该简化试验模型进行了雷电冲击试验.经过试验模型的电场数值分析,得出了由段间团体绝缘材料与变压器油形成的油楔中会出现段间最大电场强度的结论.通过雷电冲击试验,得50%击穿电压、最小击穿电压与试验模型的匝绝缘厚度、段间油隙尺寸间的关系曲线.

 
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