• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文学位 >Study of transient impulse voltage distribution and evaluation of tap-lead insulation of a power distribution transformer.
【24h】

Study of transient impulse voltage distribution and evaluation of tap-lead insulation of a power distribution transformer.

机译：瞬态脉冲电压分布的研究和配电变压器抽头引线绝缘的评估。

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This work is concerned with the evaluation of present and new designs of tap-lead insulation of a distribution transformer with barrel-type coils. To accomplish this, simulations, based on lumped parameter equivalent circuits, and test measurements were carried out to investigate transient impulse voltage distribution in a distribution transformer coils, and coils with new tap-lead insulation designs. In order to establish the equivalent circuit models, an accurate and flexible technique was proposed to calculate lumped inductive parameters. The models were validated by a good agreement between the simulation results and test measurements through investigating the capacitive effects of core and tank, the effect of various equivalent circuits and the effect of tap connections under impulse voltage application. By using the simulation results of transient over-voltage distribution as boundary conditions, electric field stresses on insulation near the input end and tap-leads were evaluated through quasi-static field analysis based on Finite Element Method. With conservative factors already built in, the field analysis results show that the present tap-lead insulation design of three layers of paper is conservative and it can be reduced to two layers of paper or even one layer of paper without any problem in electrical point of view.
机译：这项工作与评估带有桶形线圈的配电变压器的抽头引线绝缘的当前和新设计有关。为此，基于集总参数等效电路进行了仿真，并进行了测试测量，以研究配电变压器线圈和采用新型抽头引线绝缘设计的线圈中的瞬态脉冲电压分布。为了建立等效电路模型，提出了一种精确而灵活的技术来计算集总电感参数。通过研究铁心和储罐的电容效应，各种等效电路的影响以及脉冲电压施加下抽头连接的影响，通过仿真结果与测试测量之间的良好一致性来验证模型。以瞬态过电压分布的仿真结果为边界条件，通过基于有限元方法的准静态场分析，评估了输入端和抽头引线附近绝缘上的电场应力。在已经建立了保守因素的情况下，现场分析结果表明，目前的三层纸的抽头引线绝缘设计是保守的，可以将其减少为两层纸甚至一层纸，而在电气上没有任何问题。视图。

著录项

  • 作者

    Cui, Wei.;

  • 作者单位

    University of Manitoba (Canada).;

  • 授予单位 University of Manitoba (Canada).;
  • 学科 Engineering Electronics and Electrical.
  • 学位 M.Sc.
  • 年度 1997
  • 页码 112 p.
  • 总页数 112
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号