New Method for Prediction of Insulating Liquid AC Breakdown

被引：5
|
作者：
Markovic, Mladen [1 ]
Stih, Zeljko [2 ]
机构：
[1] Koncar Distribut & Special Transformers, J Mokrovica 8, Zagreb 10090, Croatia
[2] Univ Zagreb, Fac Elect Engn & Comp, Dept Elect Engn Fundamentals & Measurements, Unska 3, Zagreb 10000, Croatia
来源：
IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION | 2017年 / 24卷 / 01期
关键词：
ac breakdown; stressed liquid volume; stressed electrode area; cumulative stress; numerical calculation; streamline sweep area; Midel; 7131; liquid nitrogen; mineral oil; TRANSFORMER OIL; STATISTICAL-ANALYSIS; STRENGTH; AREA; DESIGN; FIELD;
D O I：
10.1109/TDEI.2016.005940
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：
Paper compares three most widely used methods in insulating liquid breakdown prediction: cumulative stress method, stressed electrode area and stressed liquid volume. Breakdowns were measured on Midel 7131 on OTS100AF oil tester with two different electrodes at three gap distances. Prediction capabilities of three methods were tested with respect to results of conducted measurements and research done by other authors. The utilization of these methods is enhanced by application of numerical calculation of electric field. It is shown how these methods are interrelated and a proposal for their unification is given. Unification model is confirmed on measurements conducted in this and other research papers.
引用
收藏
页码：437 / 454
页数：18
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