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首页> 外文会议>IEEE International Conference on Plasma Science >Degradation Of Oil Impregnated Cellulose Board Due To Surface Discharges: Experimental Results With Some Theortical Considerations
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Degradation Of Oil Impregnated Cellulose Board Due To Surface Discharges: Experimental Results With Some Theortical Considerations

机译：由于表面放电而使含油纤维素板降解：具有一些理论考虑的实验结果

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摘要

Oil-pressboard is commonly used in power transformers, due to its excellent dielectric properties, coolingand mechanical support. Surfacedischarge (SD) at oil-pressboard is the type of partial discharges (PD).Previous experimental studies was generally on the formation of carbonization marks along oilpressboard interface due to the surface discharge and the changes in partial discharge behaviour of oil-pressboard samples due to moisture [1], [2]. However, research into the breakdown mechanism of pressboard and change in apparent charges (pC) has not widely reported. The aim of this paper is to investigat the formation of surface discharges in oil pores and parallel fibre region of pressboard using needle plane electrode and some measurements, viz., partial discharge inception voltages (PDIV), apparent charges (pC), and PD patterns (Φ-q-n). In addition to that influence of relative oil absorption of pressboard with surface discharge has been studied. Cellulose board insulations are based on schematic structure of fiber matrix [3].
机译：油压板由于其优异的介电性能，冷却和机械支撑而常用于电力变压器。压油板的表面放电（SD）是部分放电（PD）的类型。以前的实验研究通常是关于由于表面放电和压油板样品的局部放电行为的变化而在压油板界面上形成碳化痕迹的保湿[1]，[2]。然而，尚未广泛报道对纸板的击穿机理和表观电荷变化的研究。本文的目的是研究使用针状平面电极并在压板的油孔和平行纤维区域中形成表面放电的方法，并进行一些测量，即部分放电起始电压（PDIV），视在电荷（pC）和PD模式（Φ-qn）。除此以外，还研究了压榨板相对吸油率与表面排放的关系。纤维素板绝缘材料是基于纤维基质的示意性结构[3]。

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