Exciting Characteristics of High Magnetic Induction Grain-oriented Silicon Steel for UHV Transformer

TANG Hao; QIU Yuzhou; ZHANG Shuqi; LI Jinzhong; TIAN Yu; CHEN Yu

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Exciting Characteristics of High Magnetic Induction Grain-oriented Silicon Steel for UHV Transformer

更新时间：2025-12-08

- Exciting Characteristics of High Magnetic Induction Grain-oriented Silicon Steel for UHV Transformer
- Vol. 44, Issue 3, Pages: 959-967(2018)
- 作者机构：
  
  1. 西南交通大学电气工程学院
  2. 中国电力科学研究院有限公司
  3. 国网安徽省电力有限公司电力科学研究院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：30 March 2018，
  
  Published：2018
- 稿件说明：
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TANG Hao, QIU Yuzhou, ZHANG Shuqi, et al. Exciting Characteristics of High Magnetic Induction Grain-oriented Silicon Steel for UHV Transformer[J]. 2018, 44(3): 959-967.
DOI：

TANG Hao, QIU Yuzhou, ZHANG Shuqi, et al. Exciting Characteristics of High Magnetic Induction Grain-oriented Silicon Steel for UHV Transformer[J]. 2018, 44(3): 959-967. DOI：

摘要

为确定不同类型取向硅钢片应用于特高压变压器时的励磁性能

对普通高磁感和经激光刻痕磁畴细化的2类取向硅钢片试样的单位铁损、磁化特性曲线、激磁功率曲线和磁致伸缩率4项基础磁性能进行了对比测试

对采用2类硅钢片设计成的单相双柱旁轭式特高压变压器铁芯时的空载损耗和空载电流进行了计算

对2类硅钢片制造成的1 000 k V特高压变压器主体变整机的空载损耗、空载电流、励磁特性曲线和空载噪声特性进行了试验研究和分析。结果表明:采用经激光刻痕磁畴细化的国产0.27 mm取向硅钢较同厚度进口高磁感取向硅钢片的样品

单位铁损及特高压变压器整机空载损耗小

空载附加损耗系数相近

而两类硅钢样片的磁化电流和磁致伸缩率与特高压变压器整机空载励磁电流和空载噪声无对等关系。

Abstract

To determine the exciting characteristics of different types of grain-oriented silicon steel applied to UHV transformer

two types of grain-oriented silicon steel samples-ordinary high magnetic induction and laser scored magnetic domain refinement-were employed to conduct comparison tests of four basic magnetic properties: the iron-loss per unit weight

the magnetization characteristic curve

the excitation power curve and the magnetostrictive rate

and no-load loss and no-load current of single-phase dual-column yoke-type UHV transformer iron core with two types of silicon steel were calculated. Moreover

the no-load loss machine

no-load current

exciting characteristic

and no-load noise characteristics of 1 000 k V UHV transformer manufactured by two types of silicon steel were studied and analyzed. The results show that the iron-loss per unit weight and no-load loss of The UHV transformer machine manufacured by domestic 0.27 mm laser-scored magnetic domain refinement grain-oriented silicon steel is lower and no-load additional loss coefficient is close

compared with those of the imported steel with the same thickness of the high magnetic induction grain-oriented silicon. The magnetizing current and magnetostrictive of two types of silicon steel does not have peer relations with the no-load magnetizing current and no-load noise of the UHV transformer machine.

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