Study on the Aging Characteristics of Insulation Oil of UHVDC Converter Transformer

被引：0
|
作者：
Liu C. [1 ,2 ]
Shao S. [3 ]
Liao R. [3 ]
Yang L. [3 ]
Cheng L. [3 ]
机构：
[1] School of Electric Power, South China University of Technology, Guangzhou
[2] China Southern Power Grid, Guangzhou
[3] School of Electrical Engineering, Chongqing University, Chongqing
来源：
Gaodianya Jishu/High Voltage Engineering | 2019年 / 45卷 / 03期
基金：
国家重点研发计划;
关键词：
Breakdown voltage; Combination of oil-paper; Insulation oil; The basic characteristics; UHVDC converter transformer;
D O I：
10.13336/j.1003-6520.hve.20190226008
中图分类号：
学科分类号：
摘要：
The design and manufacturing of UHVDC equipment is still in the low stage in our country. It is significant to improve the manufacture level of UHVDC converter transformer which is the core component of UHVDC systems. According to the fundamental problem in the design process of ±1 100 kV converter transformer, this paper analyzesthe insulation properties of oilbasing on the aging experimental results. Three kinds of oilareselected and then the thermal aging experiment is conducted under 130 degree centigrade. According to the experiment results such as the degree of polymerization (DP), acid, moisture content, dielectric constant, dielectric loss, resistivity, viscosity and the AC breakdown voltage, this paper finally gets the optimum kind of oil. Moreover, taking the complicated operating condition of UHVDC converter transformer and the oil requirement for converter transformer into consideration, this paper analyzes the comprehensive performance of three insulation oil and finally gets a better choice of oil. In the end, this paper provides the significant technical support to the manufacture of UHVDC converter transformer. © 2019, High Voltage Engineering Editorial Department of CEPRI. All right reserved.
引用
收藏
页码：730 / 736
页数：6
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