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

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配電變壓器標(biāo)識(shí)容量小于真實(shí)容量的判斷方法

來源:電工電氣發(fā)布時(shí)間:2016-03-14 15:14 瀏覽次數(shù):9

配電變壓器標(biāo)識(shí)容量小于真實(shí)容量的判斷方法 

周國良1,李特1,謝成1,章錫明2 
1 國網(wǎng)浙江省電力科學(xué)研究院,浙江 杭州 310014; 2 國網(wǎng)浙江省電力公司杭州供電公司,浙江 杭州 310009 
 

摘 要:針對(duì)配電變壓器大容量標(biāo)成小容量問題,對(duì)累積的抽檢試驗(yàn)數(shù)據(jù)進(jìn)行了分析,闡述了配電變壓器直流電阻、空載損耗、負(fù)載損耗與配電變壓器容量的關(guān)系,并提出了配電變壓器容量錯(cuò)標(biāo)的綜合判斷方法。試驗(yàn)結(jié)果表明,綜合利用直流電阻、空載損耗、負(fù)載損耗試驗(yàn)數(shù)據(jù)可較為可靠地判斷配電變壓器標(biāo)示容量是否小于實(shí)際容量。
關(guān)鍵詞:配電變壓器;容量錯(cuò)標(biāo);直流電阻;空載損耗;負(fù)載損耗
中圖分類號(hào):TM421 文獻(xiàn)標(biāo)識(shí)碼:B 文章編號(hào):1007-3175(2015)04-0031-04


Judge Method for Wrong-Labeled Capacity of Distribution Transformer 

ZHOU Guo-liang1, LI Te1, XIE Cheng1, ZHANG Xi-ming2 
1 State Grid Zhejiang Electric Power Research Institute , Hangzhou 310014, China; 2 State Grid Hangzhou Electric Power Supply Company, Hangzhou 310009, China 
 

Abstract: For the problem of large capacity distribution transformer marked as a small capacity, this paper analyzed the accumulated sampling test data, described the relationship among DC resistance, no-load loss, load loss and variable capacitor of distribution transformer, and put forward a comprehensive judgment method of distribution wrong-labeled capacity. The test result shows that the comprehensive utilization of DC resistance, no-load loss and load loss test data can more reliably determine whether the distribution transformer capacity labeled is less than the actual capacity.
Key words: distribution transformer; wrong-labeled capacity; DC resistance; no-load loss; load loss


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