为研究材料类型及其参数对放电腔体电场强度和电位分布的影响,以一放电腔体为对象研究了材料分别为聚丙烯、玻璃钢和钢化玻璃时腔体的表面场强、电位分布以及法兰及其上金属螺栓的场强和电位.结果表明:材料类型基本不影响整体电场和电位分布,腔体上封头靠近棒电极处场强、电位分布不均匀,棒电极附近场强大、电位集中,从上到下场强、电位有所下降;腔体侧壁法兰的场强、电位分布以及法兰上金属螺栓的电场由大到小依次均为聚丙烯、玻璃钢、钢化玻璃,而法兰上金属螺栓的悬浮电位最高为0.03 V,说明金属螺栓上的悬浮电位对放电过程不会产生显著影响.
To study the influence of material types and their parameters on the electric field intensity and potential distribution of discharge chamber, the surface electric field intensity and potential distribution of chamber, flanges, and metal bolts on flanges were studied when the chamber material was polypropylene, fiber glass reinforced plastics (FRP), and tempered glass, respectively. The results show that the types of material will not affect the field intensity and potential distribution of chamber. The field intensity and potential distribution at the position near upper flange and bar electrode are nonuniform. The field intensi-ty and potential concentrate near the bar electrode and decrease from top to bottom of the chamber. The field intensity and potential distribution of the flanges on sidewalls, as well as the electric field of the metal bolts on flanges decrease with the order of polypropylene, FRP, tempered glass. The maximum floating potential of metal bolts on flanges is 0.03 V, so the floating potential of metal bolts has no significant effects on the discharge process.
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