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|  | | 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。 | |
Once the tape is applied, the bar is subjected to a vacuum to remove moisture and volatile materials contained in the mica tape layers.
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Mica tape is half-lapped in layers around the conductor strands to achieve the required insulation thickness.
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If a vacuum impregnation process is not available, then the insulation tapes consist of a mica tape fully impregnated with epoxy resin.
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If vacuum impregnation is available, then the mica tape used is made on glass cloth with a small amount of adhesive.
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| | The paper deals with the study of the insulating binders of Class F, which is applied to mica tape used in main insulation for electric machines. According to practical requirement, two technical routes—epoxy anhydride system and epoxy anhydride imide system are selected and experimented respectively. The former is a mixture of two liquid anhydrides used for curing epoxy. The latter is based on the bisphenol A epoxy resin and anhydride and modified with imide compounds. This kind of insulating b... | | 本文系研究F级绝缘胶,并制成云母带用作电机主绝缘。文中根据实际要求,采用环氧-酸酐体系与环氧-酸酐-亚胺体系两条技术路线,分别进行了实验,前者是以两种液体酸酐混合物固化环氧;后者是以双酚A环氧-酸酐为基础,用亚胺化合物改性,制成F级绝缘胶并试作云母带和在有关电机厂进行应用试验。其结果表明,各项性能指标良好。 | | 文摘来源 | | With the dynamic dielectric analysis,heating-plate and RI methods,the suthors study the influence of composition in powder-mica papers on gelation performance of the epoxy-TOA system used as the major insulation material of large electric machines.The experimental results show that the green mica causes the gelation time of epoxy-TOA system to become abviously short because of its high Cr~(3+) content.But the gelation time of black mica system is very long because of its high Fe~(3+) conte... | | 本文用动态介电分析方法(DDA 方法)、热板法和红外光谱等手段研究了粉云母纸组成对大电机机主绝缘材料(环氧 TOA 复合体系)的凝胶化性能的影响.研究结果表明:绿云母使凝胶时间显著缩短,是 Cr~(3+)偏高的缘故;黑云母使凝胶时间大大增加,是由于 Fe~(3+)等的含量高.Cr~(3+)、Fe~(3+)是导致环氧 TOA 体系凝胶时间波动的主要因素;它们都使环氧 TOA 体系的活化能明显下降,使粉云母带的贮存稳定性变差.本文初步探讨了以上组成作用的机理. | | 文摘来源 | | The stator insulation for 40MW synchronous motor is a poor resin mica tape, complete impregnating insulations.In this insulation the semiconduct filler,redu- cing the conductor edge electrical intensity,and complete VPI for stator are ado- pted.It has a lot of advantages,such as rational structure,advanced parameters as well as exellent technology and property. | | 40MW 同步电动机定子绝缘为少胶云母带整浸型绝缘,采用了半导体腻子降低导线角部场强、定子整体 VPI 等先进技术。结构合理,指标先进,工艺考究,性能优异。 | | 文摘来源 | |   | | << 更多相关文摘 |
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