本文選題：光滑導(dǎo)線 + 雨凇覆冰��； 參考：《高電壓技術(shù)》2014年05期

【摘要】：為探求雨凇覆冰形態(tài)對(duì)輸電線路導(dǎo)線電暈起始特性的影響規(guī)律,在低溫低氣壓人工氣候試驗(yàn)室內(nèi)完成了光滑鋁導(dǎo)線的雨凇覆冰及覆冰后的交流電暈試驗(yàn),并結(jié)合紫外成像儀技術(shù)和電流-電壓(I-U)曲線擬合方法對(duì)雨凇形貌和導(dǎo)線起暈電壓進(jìn)行了測(cè)量和分析。試驗(yàn)結(jié)果表明:光滑導(dǎo)線上雨凇覆冰導(dǎo)致其起暈電壓嚴(yán)重降低,且隨著覆冰時(shí)間延長(zhǎng),導(dǎo)線起暈電壓還將持續(xù)下降,但下降的速度呈逐漸減慢的趨勢(shì);雨凇覆冰形態(tài)并不隨覆冰水電導(dǎo)率的不同而發(fā)生改變,但隨著覆冰水電導(dǎo)率的增加,導(dǎo)線起暈電壓會(huì)逐漸降低。所得結(jié)論可供雨凇頻發(fā)地區(qū)的輸電線路設(shè)計(jì)與選型參考。
[Abstract]:In order to find out the effect of the form of rime on the corona initiation characteristics of transmission line conductors, the rime and AC corona tests of smooth aluminum conductors were completed in the low temperature and low pressure artificial climate test room. The morphology of rime and the corona voltage of conductor were measured and analyzed by combining the ultraviolet imager technique and current-voltage I-U curve fitting method. The test results show that the corona voltage of smooth conductors will decrease seriously due to the rime icing, and the corona voltage will continue to decrease with the prolongation of the icing time, but the decreasing speed will gradually slow down. The form of rime ice does not change with the conductivity of ice water, but with the increase of conductivity, the corona voltage decreases gradually. The conclusions can be used as a reference for the design and selection of transmission lines in rime-prone areas.
【作者單位】： 重慶大學(xué)輸配電裝備及系統(tǒng)安全與新技術(shù)國(guó)家重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家重點(diǎn)基礎(chǔ)研究發(fā)展計(jì)劃(973計(jì)劃)(2009CB724502;2009CB724501) 國(guó)家重點(diǎn)實(shí)驗(yàn)室項(xiàng)目(2007DA10512708101;2007DA10512708102)~~
【分類號(hào)】：TM852

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本文編號(hào)：2004129