Analysis of Ageing Characteristics of Transformer Oils under Long-Term Operation Conditions

被引：2
|
作者：
Shutenko, Oleg [1 ]
Ponomarenko, Serhii [1 ]
机构：
[1] Natl Tech Univ, Kharkiv Polytech Inst, Dept Elect Power Transmiss, Kharkiv, Ukraine
来源：
IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY-TRANSACTIONS OF ELECTRICAL ENGINEERING | 2022年 / 46卷 / 02期
关键词：
Transformer oil; Ageing; Oil indicators; Operating time; Deviation from linearity; Induction period; Self-acceleration period; Dispersion analysis; INSULATION;
D O I：
10.1007/s40998-022-00492-7
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The results of analysis of transformer oils ageing under long-term operation conditions for 231 transformers of 110 kV voltage are presented. The procedure of statistical processing of transformer oil in-service test results is proposed. Significant influence of transformers operating conditions on oil ageing intensity is shown. The analysis of dependences of 7 oil indicators on operating time on a deviation from linearity has been carried out. It is established that under long-term operation the values of indicators do not change linearly. The characteristic sections of the indicators dependences are distinguished, and the physical interpretation of the obtained results is given. Correlation dependences between oil indicators have been analysed.
引用
收藏
页码：481 / 501
页数：21
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