[1]李詩勇,姜龍,薛靜,等.不同比例複合電壓下油紙絕緣局部放電起始階段放電特性[J].高壓電器,2018,54(11):220-226.[doi:10.13296/j.1001-1609.hva.2018.11.032]
 LI Shiyong,JIANG Long,XUE Jing,et al.Discharge Characteristics of Oil-paper Insulation at Initial Stage of Partial DischargeUnder AC-DC Combined Voltage with Different Proportion[J].High Voltage Apparatus,2018,54(11):220-226.[doi:10.13296/j.1001-1609.hva.2018.11.032]
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不同比例複合電壓下油紙絕緣局部放電起始階段放電特性 ()
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《高壓電器》[ISSN:1001-1609/CN:61-11271/TM]

卷:
第54卷
期數:
2018年11期
頁碼:
220-226
欄目:
電力變壓器局部放電檢測及狀態評估
出版日期:
2018-11-05

文章信息/Info

Title:
Discharge Characteristics of Oil-paper Insulation at Initial Stage of Partial Discharge Under AC-DC Combined Voltage with Different Proportion
作者:
李詩勇1姜龍1薛靜1張霖1姚竣嚴2張鴻儒2
1. 貴州電網有限責任公司貴陽供電局, 貴陽 550081; 2. 山東大學電氣工程學院特高壓輸變電技術與裝備山東省重點實驗室, 濟南 250061
Author(s):
LI Shiyong1 JIANG Long1 XUE Jing1 ZHANG Lin1 YAO Junyan2 ZHANG Hongru2
1. Guizhou Power Grid Company Limited, Guiyang Power Supply Bureau, Guiyang 550081, China; 2. School of Electrical Engineering, Shandong University, Shandong Provincial Key Laboratory of UHV Transmission Technology and Equipment, Jinan 250061, China
關鍵詞:
油紙絕緣 局部放電 不同比例複合電壓 放電特性
Keywords:
oil-paper insulation partial discharge combined voltage with different proportiondischarge characteristics
DOI:
10.13296/j.1001-1609.hva.2018.11.032
文獻標志碼:
A
摘要:
文中對不同比例交直流複合電壓下油紙絕緣局部放電起始放電特性的相關參數進行了實驗研究。搭建了球板電極、柱板電極、針板電極局部放電模型模擬不同缺陷,利用恒壓法進行了不同比例交直流複合電壓下的油浸紙板局部放電實驗,對局部放電的相關參數隨複合電壓比例的變化規律進行了測量並加以研究。研究結果表明,隨著複合電壓比例上升在球板電極、柱板電極、針板電極局部放電模型的起始放電階段交流分量幅值下降,直流分量幅值增加,放電次數下降,球板和針板電極會改變相位分布使其集中于90°~135°範圍內,同時向45°方向擴展。球板電極最大放電量較爲穩定,針板電極最大放電量隨比例上升而減小,柱板電極最大放電量變化趨勢相反。
Abstract:
The relative parameters of initial discharge characteristics of partial discharge of oil-paper insulation under AC-DC combined voltage with different proportion are studied experimentally. Ball-plate electrode, column-plate electrode,and needle-plate electrode partial discharge models are constructed to simulate different defects. The constant voltage method is employed to conduct an experiment of partial discharge in oil paper under AC/DC combined voltage with different proportion,the variations of the relative parameters of partial discharge with the proportion of combined voltage are measured and analyzed. Results show that: 1)at the initial stages of partial discharge, the AC component amplitudes of the models of ball-plate electrode,column-plate electrode,and needle-plate electrode decrease, the DC component amplitudes increase, and the discharging numbers reduce with the rising voltage proportion; 2)the ball-plate and needle-plate electrodes change their phase distribution to focus in the range of 90°to 135°, extending to the direction of 45°; and 3)the maximum discharge of the ball-plate electrode is stable,the maximum discharge of the needle-plate electrode decreases with the proportion,while the maximum discharge of the column-plate electrode increases with the proportion.

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備注/Memo

備注/Memo:
收稿日期:2018-04-16; 修回日期:2018-06-28 基金項目:貴州電網有限責任公司科技項目(060100KK52170127)。 Project Supported by Technology Project of Guizhou Power Grid Company Limited(060100KK52170127).李詩勇(1973—),男,高級工程師,主要從事變電一次設備測試與故障診斷工作。 姚竣嚴(1993—),男,碩士,主要從事油紙絕緣故障分析、高電壓試驗技術方面的研究工作(通訊作者)。
更新日期/Last Update: 2018-11-25