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<div id="ubjn47ipz" class="searchbox"> <form name="form1" method="post" action="/products.html" onsubmit="return checkform(form1)" class="input"> <input name="keyword" onblur="if(this.value=='')this.value='請輸入您要查詢的產(chǎn)品'" onfocus="this.value=''" value="請輸入您要查詢的產(chǎn)品" type="text" class="search-txt"> <input name="" type="submit" class="search-btn" value=""> </form> </div> <div id="ubjn47ipz" class="clear"></div> </div> </div> <div id="ubjn47ipz" class="nybanner"><img src="/skins/106676/images/nybanner.jpg"></div> <script src="http://www.chem17.com/mystat.aspx?u=mbdzkj"></script>  <div id="ubjn47ipz" class="ncontent w_1100"> <div id="ubjn47ipz" class="h-6">技術(shù)文章<span>您當(dāng)前的位置：<a href="/">首頁</a> > <a href="/article.html">技術(shù)文章</a> > 交流試驗變壓器的基本規(guī)定</span></div>  <div id="ubjn47ipz" class="n-3 c-news"> <div id="ubjn47ipz" class="newsnr"> <h1>交流試驗變壓器的基本規(guī)定</h1> <p class="source"><span>日期：2024-10-19</span><span>瀏覽：290次</span></p> <div> <p><span> <span style="font-family: 宋體, SimSun; font-size: 16px;"> 高壓試驗變壓器，是根據(jù)《試驗變壓器》標(biāo)準(zhǔn)在原同類產(chǎn)品基礎(chǔ)上經(jīng)過大量改進后，研制生產(chǎn)的系列試驗變壓器，高壓試驗變壓器遵照DL/T848.2-2004《高壓試驗裝置通用技術(shù)條件-第2部</span></span></p><p><span><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></span></p><p><span><span style="font-family: 宋體, SimSun; font-size: 16px;">分：工頻高壓試驗裝置》，研制生產(chǎn)的一種新型產(chǎn)品。本系列產(chǎn)品具有體積小、重量輕、結(jié)構(gòu)緊湊、功能齊全、通用性強和使用方便等特點。高壓試驗變壓器特別適用于電力系統(tǒng)、工礦企業(yè)、</span></span></p><p><span><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></span></p><p><span><span style="font-family: 宋體, SimSun; font-size: 16px;">科研部門等對各種高壓電氣設(shè)備、電器元件、絕緣材料進行工頻或直流高壓下的絕緣強度試驗。是高壓試驗中不可少的重要設(shè)備。</span></span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;">電氣設(shè)備應(yīng)按本標(biāo)準(zhǔn)進行交流耐壓試驗，且應(yīng)符合下列規(guī)定：</span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;">交流耐壓試驗時加至試驗標(biāo)準(zhǔn)電壓后的持續(xù)時間，無特殊說明時應(yīng)為 1min。</span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;">耐壓試驗電壓值以額定電壓的倍數(shù)計算時,發(fā)電機和電動機應(yīng)按銘牌額定電壓計算,電纜可按本標(biāo)準(zhǔn)第17章規(guī)定的方法計算。</span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;">非標(biāo)準(zhǔn)電壓等級的電氣設(shè)備，其交流耐壓試驗電壓值當(dāng)沒有規(guī)定時,可根據(jù)本標(biāo)準(zhǔn)規(guī)定的相鄰電壓等級按比例采用插入法計算。</span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;">進行絕緣試驗時,除制造廠裝配的成套設(shè)備外，宜將連接在一起的各種設(shè)備分離,單獨試驗。同一試驗標(biāo)準(zhǔn)的設(shè)備可連在一起試驗。無法單獨試驗時，已有出廠試驗報告的同一電壓等級不同試驗</span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;">標(biāo)準(zhǔn)的電氣設(shè)備，也可連在一起進行試驗。試驗標(biāo)準(zhǔn)應(yīng)采用連接的各種設(shè)備中的標(biāo)準(zhǔn)。</span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;">油浸式變壓器及電抗器的絕緣試驗應(yīng)在充滿合格油,靜置一定時間,待氣泡消除后方可進行。靜置時間應(yīng)按制造廠規(guī)定執(zhí)行,當(dāng)制造廠無規(guī)定時,油浸式變壓器及電抗器電壓等級與充油后靜置時間</span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;">關(guān)系應(yīng)按表確定。</span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;">進行電氣絕緣的測量和試驗時，當(dāng)只有個別項目達(dá)不到本標(biāo)準(zhǔn)規(guī)定時,則應(yīng)根據(jù)全面的試驗記錄進行綜合判斷，方可投入運行。</span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;">當(dāng)電氣設(shè)備的額定電壓與實際使用的額定工作電壓不同時,應(yīng)按下列規(guī)定確定試驗電壓的標(biāo)準(zhǔn)：</span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;">采用額定電壓較高的電氣設(shè)備在于加強絕緣時，應(yīng)按照設(shè)備額定電壓的試驗標(biāo)準(zhǔn)進行;</span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;">采用較高電壓等級的電氣設(shè)備在于滿足產(chǎn)品通用性及機械強度的要求時,可按照設(shè)備實際使用的額定工作電壓的試驗標(biāo)準(zhǔn)進行;</span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;">采用較高電壓等級的電氣設(shè)備在滿足高海拔地區(qū)要求時應(yīng)在安裝地點按實際使用的額定工作電壓的試驗標(biāo)準(zhǔn)進行，</span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;">在進行與溫度及濕度有關(guān)的各種試驗時，應(yīng)同時測量被試物周圍的溫度及濕度。絕緣試驗應(yīng)在良好天氣且被試物及儀器周圍溫度不低于5℃,空氣相對濕度不高于80%的條件下進行。對不滿足上述</span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;">溫度、濕度條件情況下測得的試驗數(shù)據(jù),應(yīng)進行綜合分析，以判斷電氣設(shè)備是否可以投入運行。試驗時，應(yīng)考慮環(huán)境溫度的影響,對油浸式變壓器、電抗器及消弧線圈，應(yīng)以被試物上層油溫作為</span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;">測試溫度。</span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;">本標(biāo)準(zhǔn)中所列的絕緣電阻測量，應(yīng)使用60s的絕緣電阻值(R)；吸收比的測量應(yīng)使用R與15s絕緣電阻值(R)的比值；極化指數(shù)應(yīng)使用10min與1min的絕緣電阻值的比值。</span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;">多繞組設(shè)備進行絕緣試驗時，非被試?yán)@組應(yīng)予短路接地。</span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;">測量絕緣電阻時，采用兆歐表的電壓等級,設(shè)備電壓等級與兆歐表的選用關(guān)系應(yīng)符合表的規(guī)定；用于極化指數(shù)測量時,兆歐表短路電流不應(yīng)低于2mA。</span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;">標(biāo)準(zhǔn)的高壓試驗方法，應(yīng)按國家現(xiàn)行標(biāo)準(zhǔn)《高電壓試驗技術(shù) 第1部分:一般定義及試驗要求》GB/T16927.1《高電壓試驗技術(shù)第2部分:測量系統(tǒng)》GB/T16927.2和《現(xiàn)場絕緣試驗實施導(dǎo)則》DL/T </span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;">474.1~DL/T474.5及相關(guān)設(shè)備標(biāo)準(zhǔn)的規(guī)定執(zhí)行。</span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;">對進口設(shè)備的交接試驗，應(yīng)按合同規(guī)定的標(biāo)準(zhǔn)執(zhí)行;其相同試驗項目的試驗標(biāo)準(zhǔn)，不得低于本標(biāo)準(zhǔn)的規(guī)定。</span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;">承受運行電壓的在線監(jiān)測裝置,其耐壓試驗標(biāo)準(zhǔn)應(yīng)等同于所連接電氣設(shè)備的耐壓水平。</span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;">特殊進線設(shè)備的交接試驗宜在與周邊設(shè)備連接前單獨進行,當(dāng)無法單獨進行試驗或需與電纜、GIS等通過油氣、油油套管等連接后方可進行試驗時，應(yīng)考慮相互間的影響。</span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;"><br/></span></p><p><span style="font-family: 宋體, SimSun; font-size: 16px;">技術(shù)難度大、需要特殊的試驗設(shè)備進行的試驗項目，應(yīng)列為特殊試驗項目,并應(yīng)由具備相應(yīng)試驗?zāi)芰Φ膯挝贿M行。特殊試驗項目應(yīng)符合本標(biāo)準(zhǔn)附錄A的有關(guān)規(guī)定。</span></p><p><br/></p> <div id="ubjn47ipz" class="clear"></div> </div> <div id="ubjn47ipz" class="article"> <p>上一篇：<a 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