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<h1>KD-9801直流系統(tǒng)接地故障測試儀</h1> <div id="5hlvxzllpl3" class="jyms"><p><span>簡要描述：</span>KD-9801直流系統(tǒng)接地故障測試儀形分析法，就是利用在直流母線與地之間加入一種特定的周期性電壓信號(hào)，通過卡鉗式探頭探測各支路電流，分析、計(jì)算電流信號(hào)基波與諧波的相位及相位差，進(jìn)而判斷是否存在接地故障及接地故障點(diǎn)。</p></div> <ul> <li><img src="/skins/333987/images/prodetail_cs_icon.png" /><span>產(chǎn)品型號(hào)：</span></li> <li><img src="/skins/333987/images/prodetail_cs_icon.png" /><span>廠商性質(zhì)：</span>生產(chǎn)廠家</li> <li><img src="/skins/333987/images/prodetail_cs_icon.png" /><span>更新時(shí)間：</span>2024-11-02</li> <li><img src="/skins/333987/images/prodetail_cs_icon.png" /><span>訪問量：</span>1090</li> </ul> <div id="5hlvxzllpl3" class="pro_detail_btn"> <a href="/order.html" class="prodtl_btn1">產(chǎn)品咨詢</a><a href="/contact.html" class="prodtl_btn2">聯(lián)系我們</a> </div> </div> <div id="5hlvxzllpl3" class="clear"></div> </div>  </div> <div id="5hlvxzllpl3" class="lhtab"><span id="5hlvxzllpl3" class="on span1">產(chǎn)品詳情</span><span id="5hlvxzllpl3" class="span2">在線留言</span></div> <div id="5hlvxzllpl3" class="page-procon"> <p>KD-9801直流系統(tǒng)接地故障測試儀</p><p>本儀器與國內(nèi)外同類型的儀器相比具有以下優(yōu)點(diǎn)：<br />1、使用簡單。本儀器只需打開電源開關(guān)就可直接使用,無需別的按鍵操作。<br />2、安全可靠。本儀器無需停浮充電機(jī)及其它一切電源，對(duì)直流系統(tǒng)沒有任何影響。<br />3、適用電壓等級(jí)多。直流系統(tǒng)220V、110V、48V、24V都可以使用。<br />4、適用范圍廣。任何類型電廠、變電站、煤礦、化工廠等供電部門都可使用。<br />5、攜帶方便，信號(hào)接收器自帶充電電池，無需外接電源，可以隨身攜帶到任何地方查找接地點(diǎn)。</p><p>6、直流系統(tǒng)不斷電查找接地點(diǎn)，不影響系統(tǒng)正常工作。</p><p>7、抗干擾能力強(qiáng)，克服了系統(tǒng)分布電容的影響。</p><p>8、智能化充電管理，減少充電時(shí)間，延長電池壽命。</p><p>KD-9801直流系統(tǒng)接地故障測試儀</p><h2>一、工作原理</h2><p>KD9801用于在不斷電情況下查找發(fā)電廠、變電站直流系統(tǒng)接地點(diǎn)的準(zhǔn)確位置。該儀器在原理上引入一種全新的探測方法----波形分析法，其主要特點(diǎn)和優(yōu)點(diǎn)：檢測靈敏度高、排查系統(tǒng)分布電容能力強(qiáng)、不斷電查找、不影響系統(tǒng)正常運(yùn)行、抗干擾能力強(qiáng)、安全可靠等。</p><p>波形分析法，就是利用在直流母線與地之間加入一種特定的周期性電壓信號(hào)，通過卡鉗式探頭探測各支路電流，分析、計(jì)算電流信號(hào)基波與諧波的相位及相位差，進(jìn)而判斷是否存在接地故障及接地故障點(diǎn)。</p><p>2. 1 裝置的構(gòu)成：本裝置由信號(hào)發(fā)生器、信號(hào)接收器和信號(hào)采集器（卡鉗）三部分組成。在查找直流系統(tǒng)故障時(shí)，三者須同時(shí)配合使用。</p><p>1、信號(hào)發(fā)生器的原理：<br />本信號(hào)發(fā)生器不采用傳統(tǒng)的LC或RC的振蕩電路，而采用全新的數(shù)字技術(shù)，因而具有信號(hào)穩(wěn)定的特點(diǎn)。該信號(hào)發(fā)生器由單片機(jī)、A/D轉(zhuǎn)換電路、信號(hào)放大濾波電路、功率放大及隔直電路、輸出反饋及保護(hù)等部分組成，其實(shí)現(xiàn)原理圖如下：</p><p> </p><p> </p><p> </p><p> </p><p></p><p> </p><p> </p><h2>二、技術(shù)指標(biāo)</h2><p>1、信號(hào)發(fā)生器</p><p>l 輸出信號(hào)頻率：2Hz</p><p>l 信號(hào)空載輸出電壓：±15V±5%</p><p>l 信號(hào)電壓幅值誤差：<5%</p><p>l 信號(hào)短路輸出電流：≤80mA</p><p>l 輸出口抗沖擊能力：400V直流沖擊</p><p>l 電源電壓：AC220V±10% </p><p>l 電壓頻率：50Hz±5%</p><p>l 輸入保險(xiǎn)：200mA</p><p>l zui大功率：2W</p><p>l 體積：275×225×100mm</p><p></p><p>2、信號(hào)接收器</p><p>l 信號(hào)電流檢測靈敏度：0.5mA</p><p>l 信號(hào)發(fā)生器阻抗：40KW</p><p>l zui大輸出電流：2.5毫安</p><p>l 接收器顯示：數(shù)字0-19</p><p>l 體積：195×100×30mm</p><p>l 體積：38×69×30mm</p> <div id="5hlvxzllpl3" class="pagetb"> <p> 上一條：<a href="/Products-24940566.html">OBT-8612 直流系統(tǒng)接地故障測試儀</a></p> <p> 下一條：<a 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