Suzhou Electric Appliance Research Institute
期刊號: CN32-1800/TM| ISSN1007-3175

Article retrieval

文章檢索

首頁 >> 文章檢索 >> 往年索引

變壓器油紙絕緣回復(fù)電壓自動(dòng)采集系統(tǒng)及試驗(yàn)研究

來源:電工電氣發(fā)布時(shí)間:2016-10-19 09:19 瀏覽次數(shù):12
變壓器油紙絕緣回復(fù)電壓自動(dòng)采集系統(tǒng)及試驗(yàn)研究
 
張斌,張濤,于潔,張曉林
(三峽大學(xué) 電氣與新能源學(xué)院,湖北 宜昌 443002)
 
    摘 要:回復(fù)電壓法(RVM) 是一種無損的評估變壓器油紙絕緣狀態(tài)的方法?;诨貜?fù)電壓測量原理,利用可編程控制的6517B 靜電儀,在VB 軟件開發(fā)平臺下,研制了一套回復(fù)電壓采集系統(tǒng)。該系統(tǒng)能夠自動(dòng)地測量不同充電時(shí)間的回復(fù)電壓,繪制出回復(fù)電壓極化譜并對其特征量進(jìn)行提取。對該系統(tǒng)的性能進(jìn)行實(shí)驗(yàn)測試并分析了不同實(shí)驗(yàn)因素對極化譜的影響,結(jié)果表明,該系統(tǒng)準(zhǔn)確測量出回復(fù)電壓,并獲得了殘余電荷最佳消除時(shí)間K 30 放電裕度。
    關(guān)鍵詞:變壓器;絕緣檢測;回復(fù)電壓;老化評估
    中圖分類號:TM411     文獻(xiàn)標(biāo)識碼:A     文章編號:1007-3175(2016)10-0039-04
 
Automatic Acquisition System of Return Voltage for Transformer
Oil Paper Insulation and Experimental Study
 
ZHANG Bin, ZHANG Tao, YU Jie, ZHANG Xiao-lin
(College of Electrical Engineering and New Energy, Three Gorges University, Yichang 443002, China)
 
    Abstract: The return voltage method is a kind of lossless method to evaluate transformer oil paper insulation state. According to the principle of return voltage measurement, based on the programmable control 6517B electrometer and the VB software development platform, this paper designed a set of return voltage acquisition system, which could automatically measure the return voltage of different charging time, drew the return voltage polarization spectrum and extract the characteristic quantity. The performance of the system was tested and this paper analyzed the influence of different experimental factors on the polarization spectrum. The results show that this system can be used to measure the return voltage
and obtain the discharging margin K30, the best eliminating time of remnant charges.
    Key words: transformer; insulation detection; return voltage; aging assessment
 
參考文獻(xiàn)
[1] 唐黎標(biāo). 變壓器常見故障檢測和解決方法[J]. 電工電氣,2014(5):61-62.
[2] 周利軍,李先浪,王曉劍,等. 基于回復(fù)電壓曲線的油紙絕緣狀態(tài)評估[J]. 高電壓技術(shù),2014,40(2):489-496.
[3] 張濤,冉華軍. 油紙絕緣設(shè)備的回復(fù)電壓曲線仿真分析[J]. 電工電氣,2012(1):5-8.
[4] 李景魁,侯英灑.絕緣層數(shù)及溫度對變壓器回復(fù)電壓參數(shù)的影響[J]. 水電能源科學(xué),2016,34(5):199-201.
[5] SARKAR S, SHARMA T, BARAL A.A New Approach for Determination of Moisture in Paper Insulation of In-Situ Power Transformers by Combining Polarization-Depolarization Current and Return Voltage Measurement Results[J].IEEE Transactions on Dielectrics and Electrical Insulation,2013,20(6):2325-2334.
[6] 鄒陽,蔡金錠. 變壓器極化譜特征量與絕緣狀態(tài)關(guān)系研究[J]. 儀器儀表學(xué)報(bào),2015,36(3):608-614.
[7] 彭倩,王曉劍,姚曉,等. 基于回復(fù)電壓法的變壓器絕緣測試系統(tǒng)的研制及應(yīng)用[J]. 變壓器,2014,51(6):58-62.
[8] 張濤,蔡金錠. 應(yīng)用極化譜分析油紙變壓器絕緣紙板水分含量的研究[J]. 電工電能新技術(shù),2009,28(4):46-49.
[9] 廖瑞金,孫會剛,袁泉,等. 采用回復(fù)電壓法分析油紙絕緣老化特征量[J]. 高電壓技術(shù),2011,37(1):136-142.