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class="text pull-left">文章詳情</span> </div> <div id="pr3mjyzo" class="phx-panel"> <div class="pr3mjyzo" id="app_52253022_style" class="hide"> </div> <div id="pr3mjyzo" class="appWrapper" id="app_52253022" role="draggable" data-type="app" data-appid="datumInfo" data-config="" data-state="true"> <div id="pr3mjyzo" class="appMask"></div> <div id="pr3mjyzo" class="appContent"> <div id="pr3mjyzo" class="datum_info"> <h1 class="title">局部放電的測量系統(tǒng)操作指南</h1> <div id="pr3mjyzo" class="bgcolor_01"> <div id="pr3mjyzo" class="bgcolor_sum"> <div id="pr3mjyzo" class="left">日期：2024-11-19 02:43</div> <div id="pr3mjyzo" class="right">瀏覽次數(shù)：239</div> </div> <div id="pr3mjyzo" class="bgcolor_sum01"> 摘要：上海康登電氣科技有限公司電力技術(shù) </div> </div> <div id="pr3mjyzo" class="content"> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;"><span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:inherit;line-height:inherit;">局部放電的測量一般分成下列幾個(gè)步驟：</span></span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">1)測量回路的選定及連接。</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">2)JFD-2000A檢測系統(tǒng)的連接。</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">3)局部放電量的測量：(1)校準(zhǔn)；(2)確定試驗(yàn)電壓的零標(biāo)；(3)測量。</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;"><span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:inherit;line-height:inherit;">在試驗(yàn)前應(yīng)了解并掌握局部放電測量的理論知識(shí)、標(biāo)準(zhǔn)及方法。熟悉</span>JFD-2000A系統(tǒng)常用功能操作。</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">1.測量回路的連接及選定</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">1) 按照標(biāo)準(zhǔn)中的檢測回路選定一種并進(jìn)行連接。</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">2) 計(jì)算測量回路檢測阻抗兩端調(diào)諧電容Ct。</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">3) 檢測阻抗選擇：選擇阻抗，即選擇調(diào)諧電容范圍中心值與Ct相近的阻抗接入檢測回路。同時(shí)必須注意試驗(yàn)時(shí)流經(jīng)檢測阻抗的電流不得超過規(guī)定的通流容量。</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">2.JFD-2000A檢測系統(tǒng)的連接</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">1) 按照說明書中“系統(tǒng)安裝”內(nèi)容條款將JFD-2000A系統(tǒng)安裝起來。</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">2) 接通220V電源，將電源開關(guān)置于“I”后，按一下后面板系統(tǒng)啟動(dòng)/關(guān)閉鍵啟動(dòng)儀器。</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">3.局部放電量的測量</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">3.1選擇試驗(yàn)電源頻率</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;"><span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:inherit;line-height:inherit;">參見華天電力</span>JFD-2000A局部放電檢測系統(tǒng)說明書內(nèi)容</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">3.2檢測系統(tǒng)的校準(zhǔn)</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;"><span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:inherit;line-height:inherit;">點(diǎn)擊主菜單中的運(yùn)行模式</span>――校驗(yàn)或下面的快捷鍵進(jìn)入系統(tǒng)校準(zhǔn)工作模式。</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;"><span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:inherit;line-height:inherit;">校準(zhǔn)步驟：</span></span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">(1)</span><span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;"><span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:inherit;line-height:inherit;">將校準(zhǔn)脈沖發(fā)生器兩輸出端用盡可能短的導(dǎo)線與試品兩端連接起來，并注入校準(zhǔn)脈沖。如圖</span>(a)、(b)示。</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;"> </span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-align:center;"> <img src="http://www.whhuatian.com/ueditor/asp/upload/image/20170401/14910300263121290.png" title="圖片2.png" style="margin:0px auto 15px;padding:0px;border-width:initial;border-style:none;font:inherit;"> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-align:center;"> （a） </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-align:center;"> <img src="http://www.whhuatian.com/ueditor/asp/upload/image/20170401/14910300268756178.png" title="圖片3.png" style="margin:0px auto 15px;padding:0px;border-width:initial;border-style:none;font:inherit;"> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;"></span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:center;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">（b）</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">(2) 根據(jù)要求注入的校準(zhǔn)脈沖值，調(diào)節(jié)JFD-2000A校準(zhǔn)脈沖發(fā)生器的U0和C0至相應(yīng)的檔位，并且工作紅燈亮。校準(zhǔn)脈沖便注入試品兩端。</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">(3) 點(diǎn)擊主菜單中的操作――開始采集或下面的快捷鍵，系統(tǒng)開始校準(zhǔn)，觀察視圖區(qū)橢園或直線圖形中是否出現(xiàn)校準(zhǔn)脈沖，如果沒有或者很小或者放電量表色柱高度超過95°格時(shí)，需要在參數(shù)設(shè)置區(qū)中調(diào)整測量通道的粗調(diào)增益檔和微調(diào)增益檔，直至校準(zhǔn)脈沖出現(xiàn)并有合適的高度，即使波形左邊的放電量表色柱指示在70～90格范圍內(nèi)。</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">(4) 在參數(shù)設(shè)置區(qū)中設(shè)置脈沖發(fā)生器中輸入的校準(zhǔn)電量。</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">(5) 點(diǎn)擊主菜單中的操作――停止采集或下面的快捷鍵，系統(tǒng)將停止采樣。此時(shí)必須點(diǎn)擊通道選擇下方的完成校準(zhǔn)按鈕方可進(jìn)行保存校準(zhǔn)參數(shù)和切換工作模式的操作。操作者可將校準(zhǔn)參數(shù)以自命名文件的形式存儲(chǔ)在硬盤中，以便在測量過程中選擇載入。點(diǎn)擊主菜單中的工作模式――測量或下面的快捷鍵，系統(tǒng)將切換到測量工作模式，如果操作者不從硬盤中載入校準(zhǔn)參數(shù)，系統(tǒng)將以切換工作模式前的*后一次校驗(yàn)參數(shù)設(shè)置進(jìn)行測量。</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;"><span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:inherit;line-height:inherit;">校準(zhǔn)參數(shù)保存與載入操作命令見</span>2.1局部放電測試軟件界面。</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;"><span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:inherit;line-height:inherit;">注：應(yīng)用軟件退出后，會(huì)將退出前*后一次校準(zhǔn)參數(shù)以</span>“Default.CAL”的文件保存。每次運(yùn)行軟件，會(huì)默認(rèn)載入“Default.CAL”文件的設(shè)置。</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">(6) 如果校準(zhǔn)脈沖值較小，易受到干擾影響，甚至于干擾脈沖高度高于校準(zhǔn)脈沖，此時(shí)可在參數(shù)設(shè)置區(qū)設(shè)置濾波方式或開啟時(shí)間窗，使窗口內(nèi)僅顯示出校準(zhǔn)脈沖。重復(fù)上述步驟，完成測量系統(tǒng)的校準(zhǔn)。時(shí)間窗的功能及操作可參考相關(guān)內(nèi)容。</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">3.3測量系統(tǒng)的校準(zhǔn)說明</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">1．校準(zhǔn)的目的是確定測量回路的信號(hào)傳輸比例（也稱刻度因數(shù)），和校驗(yàn)回路是否能測量有關(guān)試品標(biāo)準(zhǔn)中規(guī)定的*小可測放電量。</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;"><span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:inherit;line-height:inherit;">校準(zhǔn)的實(shí)質(zhì)內(nèi)容是：在測量回路確定后，調(diào)整并*終確定檢測系統(tǒng)放大器增益和測量頻帶的過程。校準(zhǔn)完成后檢測系統(tǒng)的放大器增益和測量頻帶即被固定，也即檢測回路的信號(hào)傳輸比被確定。并在試品局放測量中保持不變。這是進(jìn)行視在放電電荷量定量測量的基礎(chǔ)。</span></span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">2．由于JFD-2000A檢測系統(tǒng)的測量頻帶、增益檔位有若干組合，選哪個(gè)測量頻帶及增益檔位進(jìn)行測量都是有可能的，因此操作者必須遵從這一原則：在哪一測量頻帶及增益檔位進(jìn)行局部放電測量，那么這一測量頻帶及檔位必須進(jìn)行校準(zhǔn)。否則由于校準(zhǔn)模塊頻帶及增益檔位與局部放電測量模塊的頻帶、檔位的不同，而引起測量誤差。</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">3.4確定試驗(yàn)電壓的零標(biāo)</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;"><span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:inherit;line-height:inherit;">試品的局部放電一般發(fā)生在試驗(yàn)電壓</span>0～90°、180°～270°的相位區(qū)域內(nèi)，與試驗(yàn)電壓相位有著密切聯(lián)系。測試人員在局部放電測量時(shí)知曉試驗(yàn)電壓的零相位即零標(biāo)。對識(shí)別局部放電和干擾大有益處。因此，確定試驗(yàn)電壓的零標(biāo)在局部放電測量中是一重要環(huán)節(jié)。因此每次進(jìn)行局部放電測量時(shí)，都應(yīng)確定零標(biāo)。下面就如何確定試驗(yàn)電源零標(biāo)的方法、步驟敘述如下:</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">1. 首先使JFD-2000A系統(tǒng)進(jìn)入局部放電測量工作模式。</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">2．在試品的高電位端，懸掛一細(xì)金屬導(dǎo)線。給試品施加試驗(yàn)電壓，直至在橢圓視圖上觀察到電暈放電圖圖形為止。</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">3．當(dāng)電暈放電圖形出現(xiàn)在橢園270°相位時(shí)，表明檢測系統(tǒng)電源電壓與試驗(yàn)電壓是同相同極性。也即正零標(biāo)線是檢測系統(tǒng)電源電壓與試驗(yàn)電壓共同的零相位。負(fù)零標(biāo)線是共同的180°相位。</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">4．當(dāng)電暈放電圖形出現(xiàn)在橢園90°相位時(shí)，表明檢測系統(tǒng)電源電壓與試驗(yàn)電壓是同一相，反極性的（即相位互差180°），此時(shí)在參數(shù)設(shè)置區(qū)時(shí)基旋轉(zhuǎn)模塊中使橢園旋轉(zhuǎn)180°，電暈放電圖形顯示在270°相位，檢測系統(tǒng)電源電壓與試驗(yàn)電壓同相、同極性。此時(shí)橢園左端點(diǎn)正零標(biāo)紅線是試驗(yàn)電壓的零相位。橢園右端點(diǎn)負(fù)零標(biāo)紅線是試驗(yàn)電壓的180°相位。</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">5．當(dāng)電暈放電圖形出現(xiàn)在橢園其它相位時(shí)，表明檢測系統(tǒng)電源電壓與試驗(yàn)電壓不是同一相電源。此時(shí)，采取3中方式旋轉(zhuǎn)橢圓，使電暈放電圖形顯示在270°相位，也使檢測系統(tǒng)電源電壓移相，與試驗(yàn)電壓同相，同極性。那么，橢園左端點(diǎn)正零標(biāo)紅線便是試驗(yàn)電壓零相位，橢園右端點(diǎn)負(fù)零標(biāo)紅線便是試驗(yàn)電壓180°相位。</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">3.5視在放電量的測量</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">1．點(diǎn)擊主菜單中的運(yùn)行模式――測量或下面的快捷鍵進(jìn)入系統(tǒng)測量工作模式，JFD-2000A系統(tǒng)將默認(rèn)載入測量前*后一次校準(zhǔn)時(shí)設(shè)定的通道、增益檔位，測量頻帶和校準(zhǔn)基準(zhǔn)值等參數(shù)進(jìn)行測量，操作者應(yīng)注意參數(shù)設(shè)置區(qū)顯示的這些參數(shù)。操作者也可根據(jù)需要載入之前保存的校準(zhǔn)參數(shù)設(shè)置進(jìn)行測量。</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">2．點(diǎn)擊主菜單中的操作――開始采集或下面的快捷鍵，JFD-2000A系統(tǒng)進(jìn)行連續(xù)的局部放電測量，局部放電波形及二維、三維圖譜將連續(xù)不斷地顯示在視圖區(qū)。</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">3．每次運(yùn)行軟件，系統(tǒng)會(huì)恢復(fù)默認(rèn)的視圖設(shè)置。在軟件運(yùn)行過程中，操作者可根據(jù)需要靈活設(shè)置視圖（具體操作方式見“ 視圖區(qū)” ），而退出軟件后，這些設(shè)置將不會(huì)被保存。</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">4．操作者應(yīng)注意零標(biāo)的位置。</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">5．視在放電量及試驗(yàn)回路一次電壓的讀數(shù)在測量結(jié)果顯示欄直接顯示出來。</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;"><span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:inherit;line-height:inherit;">操作者也可通過放電量表計(jì)色柱的高度刻度</span>k1計(jì)算出放電量的大小。這個(gè)刻度值顯示在放電量表計(jì)色柱的下方。</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;"><span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:inherit;line-height:inherit;">公式為：</span></span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;"><span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:inherit;line-height:inherit;">（</span>pC）</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">q——視在放電量；</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">q0——校準(zhǔn)脈沖值；</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">k1——測量時(shí)色柱高度；</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">k0——校準(zhǔn)值q0的色柱高度。</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">6．局部放電現(xiàn)象的產(chǎn)生機(jī)理相當(dāng)復(fù)雜，其視在放電量的值具有統(tǒng)計(jì)性，表現(xiàn)為一定程度的擺動(dòng)性是很常見的。</span> </p> <p style="margin-top:2px;margin-bottom:2px;padding:0px;border:0px;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:微軟雅黑, Arial, 宋體;color:#181818;text-indent:28px;text-align:justify;"> <span style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;font-stretch:inherit;font-size:14px;line-height:inherit;font-family:微軟雅黑;">7．操作者根據(jù)需要可將局部放電測量數(shù)據(jù)或視圖以文件的形式存貯起來；當(dāng)系統(tǒng)處于停止采樣狀態(tài)下時(shí)，可載入之前保存的測量數(shù)據(jù)或視圖。外接打印機(jī)后，視圖可以被打印出來。</span> </p> </div> <div id="pr3mjyzo" class="datumrelate"> <span>下一篇：</span> <a href="/kangdengdq_Article_11624088.html" title="直流高壓發(fā)生器常見故障處理及使用前注意事項(xiàng)">直流高壓發(fā)生器常見故障處理及使用前注意事項(xiàng)</a> <br> <span>上一篇：</span> <a href="/kangdengdq_Article_11624090.html" title="調(diào)頻諧振裝置主要功能及其技術(shù)特點(diǎn)">調(diào)頻諧振裝置主要功能及其技術(shù)特點(diǎn)</a> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> <footer id="footer" class="footer" data-appid="layout"> <div class="pr3mjyzo" id="footerWrapper" class="footerWrapper" data-appid="wrapper"> <div class="pr3mjyzo" id="footerContainer" class="footerContainer" 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