一種主變壓器中性點(diǎn)直流電流測(cè)量裝置改進(jìn)
陳禹安
（廣東電網(wǎng)有限責(zé)任公司佛山供電局，廣東 佛山 528000）
摘 要：介紹一種主變壓器中性點(diǎn)直流電流測(cè)量裝置的改進(jìn)應(yīng)用，對(duì)該裝置的構(gòu)成、設(shè)計(jì)原理和調(diào)試安裝進(jìn)行了闡述。通過(guò)將傳統(tǒng)戶外式的電流互感器整合到測(cè)量裝置端子箱模塊總成里面，提高了電流互感器的測(cè)量精度，保障測(cè)量模塊不受戶外環(huán)境因素影響，避免造成設(shè)備老化而影響數(shù)據(jù)的準(zhǔn)確性。運(yùn)用該新型的測(cè)量模式可復(fù)制性地推廣至更多的中性點(diǎn)直流電流測(cè)量設(shè)備，為電網(wǎng)規(guī)劃建設(shè)提供一種可行的方案。
關(guān)鍵詞：主變壓器；中性點(diǎn)直流測(cè)量；電流互感器；裝置改進(jìn)
中圖分類號(hào)：TM401+.2 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1007-3175(2020)01-0063-03
A Kind of Neutral Point Direct Current Measuring Equipment Improvement in Main Transformer
CHEN Yu-an
（Foshan Power Supply Bureau of Guangdong Power Grid Co., Ltd, Foshan 528000, China）
Abstract: Introduction was made to a kind of improved application of DC current measuring device for neutral point of main transformer. This paper expounded the constitute, the design principle and the debugging installation of this device.By integrating the traditional outdoor current transformer into the terminal box module assembly of measuring device, the measuring accuracy of current transformer was improved, so that the measuring module was not affected by the aging of equipment caused by outdoor environment.The application of this new type measuring module can be copied to much more neutral point DC measuring devices, which provides a kind of feasible scheme for the power system planning and construction.
Key words: main transformer; neutral point DC measurement; current transformer; device improvement
參考文獻(xiàn)
[1] 鐘連宏，陸培均，仇志成，蔡漢生. 直流接地極電流對(duì)中性點(diǎn)直接接地變壓器影響[J]. 高電壓技術(shù)，2003，29(8)：12-13.
[2] 張紅躍，張清枝，熊章學(xué)，燕剛，肖志剛，于浩博，馬儀成. 采用交流互感器測(cè)量變壓器中性點(diǎn)直流分量的方法[J]. 電力系統(tǒng)保護(hù)與控制，2013，41(16)：97-102.
