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class="desc">BX8-12管滑動(dòng)變阻器滑線變阻器適用于交流50HZ，380V以下，直流440V以下的電路中，在電氣機(jī)械設(shè)計(jì)階段中作變更電流，電壓和作為代替未定電阻值的可變電阻器應(yīng)用。在實(shí)驗(yàn)室中作研究試驗(yàn)或教學(xué)演示用的電流、電壓調(diào)節(jié)器，以及作為發(fā)電設(shè)備和直流電動(dòng)機(jī)的勵(lì)磁、調(diào)速電阻等之用。}</div> </p></p> </div>  <div id="661161111" class="x-1"> <div id="661161111" class="b-1">產(chǎn)品特性<span>Product characteristics</span></div> <link type="text/css" rel="stylesheet" href="/css/property.css"> <script> window.onload=function(){ changeTableHeight(); } window.onresize=function(){ changeTableHeight(); } function changeTableHeight(){ $(".proshowParameter table th").each(function?(i,o){ ????var $this=$(o),? ????height=$this.next().height(); ????$(this).css("height",height); var obj = $(o); var val = obj.text(); if(val == '' || val == null || val == undefined){ $(this).addClass('none'); }else{ $(this).removeClass('none'); } }); $(".proshowParameter table td").each(function?(i,o){ var obj = $(o); var val = obj.text(); if(val == '' || val == null || val == undefined){ $(this).addClass('none'); }else{ $(this).removeClass('none'); } }); } </script> <section class="proshowParameter"> <table style=" margin-bottom:20px;"> <tbody> <tr><th>品牌</th><td>KD/康登</td><th>產(chǎn)地類別</th><td>國(guó)產(chǎn)</td></tr><tr><th>應(yīng)用領(lǐng)域</th><td>地礦,能源,電子,制藥,電氣</td> <th></th><td></td></tr> </tbody> </table> </section><p><strong>BX8-12管滑動(dòng)變阻器滑線變阻器</strong></p><p><strong>BX8-12管滑動(dòng)變阻器滑線變阻器</strong></p><p><br/></p><p>適用于交流50HZ，380V以下，直流440V以下的電路中，在電氣機(jī)械設(shè)計(jì)階段中作變更電流，電壓和作為代替未定電阻值的可變電阻器應(yīng)用。在實(shí)驗(yàn)室中作研究試驗(yàn)或教學(xué)演示用的電流、電壓調(diào)節(jié)器，以及作為發(fā)電設(shè)備和直流電動(dòng)機(jī)的勵(lì)磁、調(diào)速電阻等之用。}</p><p><strong>上?？档请姎饪萍加邢薰?/strong></p><p style="margin-right: 0;line-height: 150%"><span style=";font-family:仿宋;line-height:150%;font-size:16px"><span style="font-family:仿宋">1、變阻器單臺(tái)產(chǎn)品在電路中可作串、并聯(lián)使用，也可多臺(tái)并機(jī)使用。</span></span></p><p style="margin-right: 0;margin-left: 0;text-indent: 0;line-height: 150%"><span style=";font-family:仿宋;line-height:150%;font-size:16px"><span style="font-family:仿宋">2、</span></span><span style=";font-family:仿宋;line-height:150%;font-size:16px"><span style="font-family:仿宋">滑線變阻器的結(jié)構(gòu)和符號(hào)如圖所示，電阻絲的兩頭分別接在瓷管兩端的</span><span style="font-family:仿宋">A、B接線柱上，A、B之間的電阻即為總電阻?；瑒?dòng)頭D可沿金屬桿滑動(dòng)，與電阻絲接觸良好，改變其位置就可以改變AC（或BC）電阻。額定電流和總電阻等參數(shù)均在銘牌上標(biāo)明。在電路中有兩種接法：</span></span></p><p style="margin-right: 0;margin-left: 0;text-indent: 0;line-height: 150%"><span style=";font-family:仿宋;line-height:150%;font-size:16px"><span style="font-family:仿宋">①限流接法：將變阻器的一個(gè)固定端和滑動(dòng)端接入電路，由于電阻可變，從而使電路中的電流發(fā)生變化。</span></span></p><p style="margin-right: 0;margin-left: 0;text-indent: 0;line-height: 150%"><span style=";font-family:仿宋;line-height:150%;font-size:16px"><span style="font-family:仿宋">②分壓接法：將變阻器的兩個(gè)固定端分別與電源的兩極相連，由滑動(dòng)端和任一固定端連接到電路。由于電流通過(guò)變阻器的全部電阻絲，故A、B之間任意兩點(diǎn)都有電勢(shì)差。當(dāng)滑動(dòng)頭移動(dòng)時(shí)，就改變了電路的輸入電壓。</span></span></p><p><span 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