C4F7N/CO2混合氣體熄弧特性試驗(yàn)研究
王佳田,林莘,張佳,庚振新,徐建源,劉鵬飛,王強(qiáng)
(沈陽(yáng)工業(yè)大學(xué) 電氣工程學(xué)院,遼寧 沈陽(yáng) 110870)
摘 要:為研究全氟異丁腈(C4F7N)與二氧化碳(CO2)混合氣體的熄弧特性,利用LC振蕩回路搭建電弧試驗(yàn)平臺(tái),對(duì)六氟化硫(SF6)、5%C4F7N/95%CO2以及9%C4F7N/91%CO2混合氣體在0.6、0.8 MPa下進(jìn)行20 kA短路電流開(kāi)斷試驗(yàn),利用測(cè)量得到的電弧電壓、電弧電流,計(jì)算電弧電導(dǎo),進(jìn)而研究C4F7N/CO2混合氣體的熄弧性能。研究結(jié)果表明,隨著C4F7N含量的增加,電弧電壓熄弧峰值以及電弧電導(dǎo)與SF6氣體逐漸接近,表現(xiàn)出優(yōu)良的滅弧性能。
關(guān)鍵詞:C4F7N/CO2混合氣體;電弧試驗(yàn);熄弧性能
中圖分類(lèi)號(hào):TM501+.2 文獻(xiàn)標(biāo)識(shí)碼:A 文章編號(hào):1007-3175(2020)02-0046-05
Experimental Study on Arc Extinguishing Characteristics of C4F7N/CO2 Mixed Gas
WANG Jia-tian, LIN Xin, ZHANG Jia, GENG Zhen-xin, XU Jian-yuan, LIU Peng-fei, WANG Qiang
(School of Electrical Engineering, Shenyang University of Technology, Shenyang 11 0870, China)
Abstract: In order to study the arc-extinguishing characteristics of C4F7N and CO2 mixed gas, the arc test platform was built by LC oscillation circuit, and 20 kA short circuit current breaking tests were carried out with SF6, 5%C4F7N/95%CO2 and 9%C4F7N/91%CO2 mixed gas at 0.6 MPa and 0.8 MPa. The measured arc voltage and arc current were used to calculate the arc conductance, so as to study on the arc-extinguishing performance of C4F7N/CO2 mixed gas. The results show that with the increase of C4F7N content, the arc voltage quenching peak and arc conductance are close to those in the SF6 gas, showing a strong arc-extinguishing ability.
Key words: C4F7N/CO2 mixture gas; arcing experiment; arc extinguishing performance
參考文獻(xiàn)
[1] OKABE S, WADA J, UETA G.Dielectric properties of gas mixtures with C3F8/C2F6 and N2/CO2[J].IEEE Transactions on Dielectrics and Electrical Insulation,2015,22(4):2108-2116.
[2] 林莘. 現(xiàn)代高壓電器技術(shù)[M]. 北京:機(jī)械工業(yè)出版社,2004.
[3] HERMANN J K.Gas insulated substations[M]. Chichester:Wiley-IEEE Press,2014.
[4] 陳會(huì)利. SF6/ N2 及SF6/ CF4混合氣體放電特性研究[D]. 沈陽(yáng):沈陽(yáng)工業(yè)大學(xué),2018.
[5] 趙虎,張晗,李興文,等. SF6-CO2 和SF6-CF4混合氣體斷路器的噴口壓力特性[J]. 高電壓技術(shù),2016,42(6):1767-1774.
[6] 肖登明,焦俊韜,YAN Jiudun. 環(huán)保型絕緣氣體的滅弧能力分析[J]. 高電壓技術(shù),2016,42(6):1681-1687.
[7] MAIK H, TOBIAS H, PASCAL M, et al.Alternative Gas Insulation in Medium-Voltage Switchgear[C]//23rd International Conference on Electricity Distribution,2015.
[8] KIEFFEL Y, IRWIN T, PONCHON P, et al.Green gas to replace SF6 in electrical grids[J]. IEEE Power and Energy Magazine,2016,14(2):32-39.
[9] KIEFFEL Y, BIQUEZ F. SF6 Alternative Development for High Voltage Switchgears[C]//IEEE Electrical Insulation Conference,2015.
[10] 周文俊,鄭宇,高克利,等. 環(huán)保型絕緣氣體電氣特性研究進(jìn)展[J]. 高電壓技術(shù),2018,44(10):3114-3124.
[11] WU Y, WANG C, SUN H, et al.Properties of C4F7N-CO2 thermal plasmas:Thermodynamic properties, transport coefficients and emission coefficients[J].Journal of Physics D:Applied Physics,2018,51(15):155-206.
[12] HERMOSILLO V, GREGOIRE C, VANCELL D, et al. Performance Evaluation of CO2/Fluoronitrile Mixture at High Short Circuit Current Level in GIS and Dead-Tank High-Voltage Circuit Breakers[C]//CIGRE,2018.
[13] HOPF A, BRITTON J, ROSSNER M, et al. Dielectric Strength of SF6 Substitutes, Alternative Insulation Gases and PFC-gasmixtures[C]//IEEE Electrical Insulation Conference,2017.
[14] 李祎, 張曉星, 陳琪, 等. 氣體絕緣介質(zhì)C4F7N的急性吸入毒性試驗(yàn)[J]. 高電壓技術(shù),2019,45(1):109-116.
[15] 李志闖,丁衛(wèi)東,高克利,等. C4F7N/CO2混合氣體中環(huán)氧絕緣子雷電沖擊沿面絕緣特性[J]. 高電壓技術(shù),2019,45(4):1071-1077.
[16] 侯華,顏湘蓮,余小娟,等. 分子篩吸附C4F7N/CO2混合絕緣氣體及其分解產(chǎn)物的理論研究[J]. 高電壓技術(shù),2019,45(4):1040-1047.
[17] 姜旭,霍鵬,朱會(huì),等. 環(huán)保型C4F7N/CO2混合氣體試驗(yàn)平臺(tái)搭建及絕緣特性分析[J]. 高壓電器,2018,54(7):179-183.
[18] 李興文, 鄧云坤, 姜旭, 等. 環(huán)保氣體C4F7N 和C5F10O與CO2混合氣體的絕緣性能及其應(yīng)用[J]. 高電壓技術(shù),2017,43(3):708-715.
[19] 王凌志,周文俊,張?zhí)烊?,? C4F7N/CO2混合氣體在均勻和極不均勻電場(chǎng)下的工頻絕緣性能[J]. 高電壓技術(shù),2019,45(4):1101-1107.