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font-stretch: inherit; font-size: 15px; line-height: 2em; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; text-align: justify;"><span style="border:0px; box-sizing:border-box; font-family:微軟雅黑,microsoft yahei; font-size:16px; font-stretch:inherit; font-style:inherit; font-variant:inherit; font-weight:inherit; line-height:inherit; margin:0px; padding:0px; vertical-align:baseline">直流高壓發(fā)生器是發(fā)生器適用于各種電力部門、企業(yè)動力部門對氧化鋅避雷器、電力電纜、發(fā)電機(jī)、變壓器、開關(guān)等設(shè)備進(jìn)行直流高壓試驗和泄漏電流試驗的電力設(shè)備，是根據(jù)新的中國電力行業(yè)標(biāo)準(zhǔn)DL/T848.1-2004《直流高壓發(fā)生器通用技術(shù)條件》設(shè)計制造的新一代便攜式直流高壓試驗器。具有重量輕，體積小，操作方便的特點，下面就直流高壓發(fā)生器操作步驟做出如下講解：</span></p><p style="margin: 18px 0px 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 2em; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; text-align: justify;"><span style="border:0px; box-sizing:border-box; font-family:微軟雅黑,microsoft yahei; font-size:16px; font-stretch:inherit; font-style:inherit; font-variant:inherit; font-weight:inherit; line-height:inherit; margin:0px; padding:0px; vertical-align:baseline">　　如做容性負(fù)載時，應(yīng)接入限流電阻</span></p><p style="margin: 18px 0px 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 2em; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; text-align: justify;"><span style="border:0px; box-sizing:border-box; font-family:微軟雅黑,microsoft yahei; font-size:16px; font-stretch:inherit; font-style:inherit; font-variant:inherit; font-weight:inherit; line-height:inherit; margin:0px; padding:0px; vertical-align:baseline">　　1.試驗器在使用前應(yīng)檢查其完好性，聯(lián)接電纜不應(yīng)有斷路和短路，設(shè)備無破裂等損壞。</span></p><p style="margin: 18px 0px 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 2em; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; text-align: justify;"><span style="border:0px; box-sizing:border-box; font-family:微軟雅黑,microsoft yahei; font-size:16px; font-stretch:inherit; font-style:inherit; font-variant:inherit; font-weight:inherit; line-height:inherit; margin:0px; padding:0px; vertical-align:baseline">　　2.將機(jī)箱、倍壓筒放置到合適位置分別聯(lián)接好電源線、電纜線和接地線，保護(hù)接地線與工作接地線以及放電棒的接地線均應(yīng)單獨接到試品的地線上(即一點接地)。嚴(yán)禁各接地線相互串聯(lián)。為此，應(yīng)使用DHV接地線。</span></p><p style="margin: 18px 0px 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 2em; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; text-align: justify;"><span style="border:0px; box-sizing:border-box; font-family:微軟雅黑,microsoft yahei; font-size:16px; font-stretch:inherit; font-style:inherit; font-variant:inherit; font-weight:inherit; line-height:inherit; margin:0px; padding:0px; vertical-align:baseline">　　3.電源開關(guān)放在關(guān)斷位置并檢查調(diào)壓電位器應(yīng)在零位。過電壓保護(hù)整定值一般為試驗電壓的1.1倍。</span></p><p style="margin: 18px 0px 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 2em; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; text-align: justify;"><span style="border:0px; box-sizing:border-box; font-family:微軟雅黑,microsoft yahei; font-size:16px; font-stretch:inherit; font-style:inherit; font-variant:inherit; font-weight:inherit; line-height:inherit; margin:0px; padding:0px; vertical-align:baseline">　　4.空載升壓驗證過電壓保護(hù)整定是否靈敏。</span></p><p style="margin: 18px 0px 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 2em; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; text-align: justify;"><span style="border:0px; box-sizing:border-box; font-family:微軟雅黑,microsoft yahei; font-size:16px; font-stretch:inherit; font-style:inherit; font-variant:inherit; font-weight:inherit; line-height:inherit; margin:0px; padding:0px; vertical-align:baseline">　　5.接通電源開關(guān)，此時紅燈亮，表示電源接通。</span></p><p style="margin: 18px 0px 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 2em; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; text-align: justify;"><span style="border:0px; box-sizing:border-box; font-family:微軟雅黑,microsoft yahei; font-size:16px; font-stretch:inherit; font-style:inherit; font-variant:inherit; font-weight:inherit; line-height:inherit; margin:0px; padding:0px; vertical-align:baseline">　　6.按綠色按鈕，則綠燈亮，表示高壓接通。</span></p><p style="margin: 18px 0px 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 2em; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; text-align: justify;"><span style="border:0px; box-sizing:border-box; font-family:微軟雅黑,microsoft yahei; font-size:16px; font-stretch:inherit; font-style:inherit; font-variant:inherit; font-weight:inherit; line-height:inherit; margin:0px; padding:0px; vertical-align:baseline">　　7.順時針方向平緩調(diào)節(jié)調(diào)壓電位器，輸出端即從零開始升壓，升至所需電壓后，按規(guī)定時間記錄電流表讀數(shù)，并檢查控制箱及高壓輸出線有無異常現(xiàn)象及聲響。</span></p><p style="margin: 18px 0px 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 2em; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; text-align: justify;"><span style="border:0px; box-sizing:border-box; font-family:微軟雅黑,microsoft yahei; font-size:16px; font-stretch:inherit; font-style:inherit; font-variant:inherit; font-weight:inherit; line-height:inherit; margin:0px; padding:0px; vertical-align:baseline">　　8.降壓，將調(diào)壓電位器回零后，隨即按紅色按鈕，切斷高壓并關(guān)閉電源開關(guān)。</span></p><p style="margin: 18px 0px 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 2em; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; text-align: justify;"><span style="border:0px; box-sizing:border-box; font-family:微軟雅黑,microsoft yahei; font-size:16px; font-stretch:inherit; font-style:inherit; font-variant:inherit; font-weight:inherit; line-height:inherit; margin:0px; padding:0px; vertical-align:baseline">　　9.對試品進(jìn)行泄漏及直流耐壓試驗。在進(jìn)行檢查試驗確認(rèn)試驗器無異常情況后，即可開始進(jìn)行試品的泄漏及直流耐壓試驗。將試品、地線等聯(lián)接好，檢查無誤后即打開電源。</span></p><p style="margin: 18px 0px 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 2em; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; text-align: justify;"><span style="border:0px; box-sizing:border-box; font-family:微軟雅黑,microsoft yahei; font-size:16px; font-stretch:inherit; font-style:inherit; font-variant:inherit; font-weight:inherit; line-height:inherit; margin:0px; padding:0px; vertical-align:baseline">　　10.升壓至所需電壓或電流。升壓速度以每秒3—5kV試驗電壓為宜。對于大電容試品升壓時還需監(jiān)視電流表充電電流不超過試驗器的大充電電流。對小電容試品如氧化鋅避雷器、磁吹避雷器等先升至所需電壓(電流)的95%，再緩慢仔細(xì)升至所需的電壓(電流)。然后從數(shù)顯表上讀出電壓(電流)值。如需對氧化鋅避雷器進(jìn)行0.75UDC—1mA測量時，先升至UDC1mA電壓值，然后按下黃色按鈕，此時電壓即降至原來的75%，并保持此狀態(tài)。此時可讀取電流。測量完畢后，調(diào)壓電位器逆時針回到零，按下綠色按鈕。需再次升壓時按綠色按鈕即可。必要時用外接高壓分壓器比對控制箱上的電壓。</span></p><p style="margin: 18px 0px 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 2em; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; text-align: justify;"><span style="border:0px; box-sizing:border-box; font-family:微軟雅黑,microsoft yahei; font-size:16px; font-stretch:inherit; font-style:inherit; font-variant:inherit; font-weight:inherit; line-height:inherit; margin:0px; padding:0px; vertical-align:baseline">　　11.試驗完畢，降壓，關(guān)閉電源。</span></p><p style="margin: 18px 0px 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 2em; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; text-align: justify;"><span style="border:0px; box-sizing:border-box; font-family:微軟雅黑,microsoft yahei; font-size:16px; font-stretch:inherit; font-style:inherit; font-variant:inherit; font-weight:inherit; line-height:inherit; margin:0px; padding:0px; vertical-align:baseline">　　12.幾種測量方法</span></p><p style="margin: 18px 0px 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 2em; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; text-align: justify;"><span style="border:0px; box-sizing:border-box; font-family:微軟雅黑,microsoft yahei; font-size:16px; font-stretch:inherit; font-style:inherit; font-variant:inherit; font-weight:inherit; line-height:inherit; margin:0px; padding:0px; vertical-align:baseline">　　a.一般測量時，當(dāng)接好線后，先把聯(lián)接試品的線懸空，升到試驗電壓后讀取空試時的電暈和雜散電流I，然后接上試品升到試驗電壓讀取總電流Ⅰ1;試品泄漏電流：Io=Ⅰ1—I’</span></p><p style="margin: 18px 0px 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 2em; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; text-align: justify;"><span style="border:0px; box-sizing:border-box; font-family:微軟雅黑,microsoft yahei; font-size:16px; font-stretch:inherit; font-style:inherit; font-variant:inherit; font-weight:inherit; line-height:inherit; margin:0px; padding:0px; vertical-align:baseline">　　b.當(dāng)需要精確測量被試品泄漏電流時，則應(yīng)在高壓側(cè)串入高壓微安表(見下圖)</span><span style="border:0px; box-sizing:border-box; font-family:微軟雅黑,microsoft yahei; font-size:inherit; font-stretch:inherit; font-style:inherit; font-variant:inherit; font-weight:inherit; line-height:inherit; margin:0px; padding:0px; vertical-align:baseline">　　</span></p><p style="margin: 18px 0px 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 2em; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; text-align: center;"><img _src="/ueditor/php/upload/image/20200528/1590646413425836.png" alt="直流高壓發(fā)生器的操作流程" src="https://www.wh-huayi.com/ueditor/php/upload/image/20200528/1590646413425836.png" style="border:0px; box-sizing:border-box; font:inherit; height:426; margin:0px; padding:0px; vertical-align:baseline; width:400" /></p><p style="margin: 18px 0px 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 23px; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; text-align: justify;"> </p><p style="margin: 18px 0px 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 2em; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; text-align: justify;"><span style="border:0px; box-sizing:border-box; font-family:微軟雅黑,microsoft yahei; font-size:16px; font-stretch:inherit; font-style:inherit; font-variant:inherit; font-weight:inherit; line-height:inherit; margin:0px; padding:0px; vertical-align:baseline">　　微安表必須有金屬屏蔽，應(yīng)采用屏蔽線與試品聯(lián)接。高壓引線的屏蔽引出應(yīng)與儀表端的屏蔽緊密聯(lián)接。如果試品表面污穢要排除試品表面泄漏電流的影響可在試品高電位端用裸金屬軟線緊密繞幾圈后與高壓引線的屏蔽相聯(lián)接(見下圖)。</span><span style="border:0px; box-sizing:border-box; font-family:微軟雅黑,microsoft yahei; font-size:inherit; font-stretch:inherit; font-style:inherit; font-variant:inherit; font-weight:inherit; line-height:inherit; margin:0px; padding:0px; vertical-align:baseline">　　</span></p><p style="margin: 18px 0px 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 2em; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; text-align: center;"><img _src="/ueditor/php/upload/image/20200528/1590646413162560.png" alt="直流高壓發(fā)生器的操作流程" src="https://www.wh-huayi.com/ueditor/php/upload/image/20200528/1590646413162560.png" style="border:0px; box-sizing:border-box; font:inherit; height:265; margin:0px; padding:0px; vertical-align:baseline; width:400" /></p><p style="margin: 18px 0px 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 23px; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; text-align: justify;"> </p><p style="margin: 18px 0px 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 2em; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; text-align: justify;"><span style="border:0px; box-sizing:border-box; font-family:微軟雅黑,microsoft yahei; font-size:16px; font-stretch:inherit; font-style:inherit; font-variant:inherit; font-weight:inherit; line-height:inherit; margin:0px; padding:0px; vertical-align:baseline">　　c.對氧化鋅、磁吹避雷器等試品接地端可拆開的情況下，也可采用在試品的底部(地電位側(cè))串入電流表進(jìn)行測量的方式。當(dāng)要排除試品表面泄漏電流的影響，可用軟的裸銅線在試品地電位端繞上幾圈并與屏蔽線的屏蔽相聯(lián)接(見下圖)</span><span style="border:0px; box-sizing:border-box; font-family:微軟雅黑,microsoft yahei; font-size:inherit; font-stretch:inherit; font-style:inherit; font-variant:inherit; font-weight:inherit; line-height:inherit; margin:0px; padding:0px; vertical-align:baseline">　　</span></p><p style="margin: 18px 0px 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 2em; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; text-align: center;"><img _src="/ueditor/php/upload/image/20200528/1590646413805813.png" alt="直流高壓發(fā)生器的操作流程" src="https://www.wh-huayi.com/ueditor/php/upload/image/20200528/1590646413805813.png" style="border:0px; box-sizing:border-box; font:inherit; height:214; margin:0px; padding:0px; vertical-align:baseline; width:600" /></p><p style="margin: 18px 0px 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 23px; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; text-align: justify;"> </p><p style="margin: 18px 0px 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 2em; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; text-align: justify;"><span style="border:0px; box-sizing:border-box; font-family:微軟雅黑,microsoft yahei; font-size:16px; font-stretch:inherit; font-style:inherit; font-variant:inherit; font-weight:inherit; line-height:inherit; margin:0px; padding:0px; vertical-align:baseline">　　13.對于氧化鋅避雷器等小電容試品一般通過測壓電阻放電時間很快。而對電纜等大電容試品一般要待試品電壓自放電至試驗電壓的20%以下，再通過配套的放電棒進(jìn)行放電。待試品充分放電后掛好接地線，才允許進(jìn)行高壓引線的拆除和更換接線工作。</span></p><p style="margin: 18px 0px 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 2em; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; text-align: justify;"><span style="border:0px; box-sizing:border-box; font-family:微軟雅黑,microsoft yahei; font-size:16px; font-stretch:inherit; font-style:inherit; font-variant:inherit; font-weight:inherit; line-height:inherit; margin:0px; padding:0px; vertical-align:baseline">　　14.保護(hù)動作后的操作</span></p><p style="margin: 18px 0px 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 2em; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; text-align: justify;"><span style="border:0px; box-sizing:border-box; font-family:微軟雅黑,microsoft yahei; font-size:16px; font-stretch:inherit; font-style:inherit; font-variant:inherit; font-weight:inherit; line-height:inherit; margin:0px; padding:0px; vertical-align:baseline">　　在使用過程中發(fā)現(xiàn)綠燈滅，紅燈亮，電壓下降，即為有關(guān)保護(hù)動作。此時應(yīng)關(guān)閉電源開關(guān)，面板指示燈均不亮。將調(diào)壓電位器退回零位，一分鐘后待機(jī)內(nèi)低壓電容器充分放電后才允許再次打開電源開關(guān)。重新進(jìn)行空載試驗并查明情況后可再次升壓試驗。</span></p><p style="margin: 18px 0px 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 2em; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; text-align: justify;"><span style="border:0px; box-sizing:border-box; font-family:微軟雅黑,microsoft yahei; font-size:16px; font-stretch:inherit; font-style:inherit; font-variant:inherit; font-weight:inherit; line-height:inherit; margin:0px; padding:0px; vertical-align:baseline"><img alt="" src="http://img68.chem17.com/9/20200606/637270255330854737562.png" style="width:800px" /></span></p></div> <div id="ihno5c4uhq" class="inside_newsthree"> <p id="newsprev">上一篇：<b class="newsprev"><a 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