【摘要】：在電力系統(tǒng)中,輸電線(xiàn)路是最為重要的設(shè)備之一。輸電線(xiàn)路往往涉及長(zhǎng)度大,所處的環(huán)境較為復(fù)雜問(wèn)題,其運(yùn)行的可靠程度直接影響電網(wǎng)安全運(yùn)行。而絕緣子串是架空輸電線(xiàn)路中的重要組成部分,在高壓輸電線(xiàn)路中起支撐導(dǎo)線(xiàn)并使之與桿塔絕緣的作用。我國(guó)現(xiàn)有并聯(lián)間隙大部分用于35kV、110kV、220kV電壓等級(jí)的架空線(xiàn)路上,但現(xiàn)有10kV架空線(xiàn)路并聯(lián)間隙的研制尚為空白。本文以10kV架空線(xiàn)路的并聯(lián)間隙為研制對(duì)象,針對(duì)現(xiàn)有并聯(lián)間隙耐電弧燒蝕能力較差,導(dǎo)致其使用壽命較低的問(wèn)題展開(kāi)研究工作。本文擬尋求良好的耐電弧燒蝕性能的材料,通過(guò)提高并聯(lián)防雷間隙的使用壽命,降低線(xiàn)路運(yùn)行維護(hù)費(fèi)用,來(lái)實(shí)現(xiàn)架空輸電線(xiàn)路的安全運(yùn)行。本文主要有以下內(nèi)容:1、對(duì)并聯(lián)間隙的材質(zhì)進(jìn)行研制。將耐燒蝕銅鎢合金替代普通碳素鋼作為并聯(lián)間隙上、下電極材質(zhì)。通過(guò)短路電流、真空放電、中性鹽霧試驗(yàn)和鹽水浸泡試驗(yàn)分別進(jìn)行驗(yàn)證,得出結(jié)論是耐燒蝕銅鎢合金的耐電弧侵蝕、耐腐蝕能力均大大優(yōu)于普通碳素鋼材。2、對(duì)并聯(lián)間隙的結(jié)構(gòu)進(jìn)行設(shè)計(jì),并加工成樣品。3、對(duì)并聯(lián)間隙進(jìn)行電氣性能研究。通過(guò)50%雷電放電電壓試驗(yàn)、工頻電壓試驗(yàn)和工頻大電流燃弧試驗(yàn),檢驗(yàn)新型并聯(lián)間隙的防雷性能。4、對(duì)本文研制的新型并聯(lián)間隙進(jìn)行應(yīng)用效果分析。該裝置現(xiàn)在泉州市10kV龍通線(xiàn)架空線(xiàn)路上得到應(yīng)用。經(jīng)過(guò)1年雷雨季節(jié)的考驗(yàn),己有多次動(dòng)作記錄,實(shí)踐證明該裝置的防雷效果良好。最后,對(duì)本文所做的工作進(jìn)行了總結(jié)。
[Abstract]:Transmission line is one of the most important equipments in power system. Transmission lines often involve large length and complex environment. The reliability of transmission lines directly affects the safe operation of power grid. The insulator string is an important part of overhead transmission line, which plays the role of supporting the conductor and insulating it from the tower in the high voltage transmission line. Most of the existing parallel gaps in China are used on overhead lines with 35 kV / 110kV / 220kV voltage grade, but the development of the parallel gap of the existing 10kV overhead lines is still blank. In this paper, the parallel gap of 10kV overhead line is taken as the research object, aiming at the problem of poor arc ablation resistance of the existing parallel gap, which leads to its low service life. In this paper, we are looking for materials with good arc ablation resistance to achieve the safe operation of overhead transmission lines by increasing the service life of the parallel lightning gap and reducing the operating and maintenance costs of the lines. The main contents of this paper are as follows: 1. The material of parallel clearance is developed. Ablation-resistant copper-tungsten alloy was replaced by ordinary carbon steel as parallel gap and lower electrode material. Through short circuit current, vacuum discharge, neutral salt spray test and brine immersion test, it is concluded that the arc corrosion resistance of ablative copper tungsten alloy is much better than that of common carbon steel. The structure of parallel gap is designed and processed into sample. 3. Electrical performance of parallel gap is studied. Through 50% lightning discharge voltage test, power frequency voltage test and power frequency large current arc burning test, the lightning protection performance of the new parallel gap is tested. 4. The application effect of the new parallel gap developed in this paper is analyzed. The device is now used on the overhead line of 10kV Longtong Line in Quanzhou City. After one year thunderstorm season test, there have been many action records, the practice proves that the lightning protection effect of the device is good. Finally, the work done in this paper is summarized.
【學(xué)位授予單位】：華僑大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：TM862

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 林盛強(qiáng);胡詩(shī);官?gòu)?qiáng)華;洪青云;李磊;邱添;陳寧釗;;局部耐燒蝕型并聯(lián)間隙防雷裝置的研究[J];高壓電器;2016年03期

2 林盛強(qiáng);胡詩(shī);官?gòu)?qiáng)華;洪青云;李萌鋒;葉玉云;;一種新型并聯(lián)間隙防雷裝置的研制[J];廣西電力;2015年02期

3 王巨豐;郭偉;郭峰;劉其良;梁雪;吳東;劉津濂;;噴射氣體滅弧防雷間隙的滅弧效果[J];中國(guó)電機(jī)工程學(xué)報(bào);2015年03期

4 甘景福;馬鑫晟;彭瓏;李雨;;典型地區(qū)配網(wǎng)設(shè)備雷擊故障特征與防雷措施分析[J];華北電力技術(shù);2014年07期

5 王巨豐;李世民;閆仁寶;吳焰龍;;可主動(dòng)快速熄滅工頻續(xù)流電弧的滅弧防雷間隙裝置設(shè)計(jì)[J];高電壓技術(shù);2014年01期

6 謝云云;薛禹勝;王昊昊;徐泰山;董朝陽(yáng);金學(xué)成;;電網(wǎng)雷擊故障概率的時(shí)空在線(xiàn)預(yù)警[J];電力系統(tǒng)自動(dòng)化;2013年17期

7 閆仁寶;王巨豐;李世民;吳焰龍;;110kV輸電線(xiàn)路雷擊事件分析及防范措施[J];廣西電力;2013年03期

8 陳茂榮;盧澤軍;方[V計(jì);吳彪;曾強(qiáng);趙淳;;廣東東莞10kV架空線(xiàn)路防雷治理技術(shù)研究[J];電瓷避雷器;2013年03期

9 龍夢(mèng)妮;曾子軒;;新型噴射氣流防雷滅弧間隙的機(jī)理研究[J];電氣開(kāi)關(guān);2013年02期

10 胡建川;劉渝根;冷迪;田資;成文杰;;南川地區(qū)10kV配網(wǎng)線(xiàn)路防雷分析[J];高壓電器;2013年03期

相關(guān)碩士學(xué)位論文 前2條

1 徐鵬;配電網(wǎng)綜合防雷技術(shù)研究[D];長(zhǎng)沙理工大學(xué);2012年

2 王偉然;架空線(xiàn)路絕緣子并聯(lián)間隙防雷保護(hù)應(yīng)用研究[D];華南理工大學(xué);2010年

，

本文編號(hào)：2424147