工频介电常数测试�?参数-价格-中国粉体罐�/title>

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$(this).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }); }); </script>  <div class="cpjj"> <p><strong><span>QS37a</span></strong><strong><span>型高压电容电�?strong>工频介电常数测试�?/strong></span></strong><strong></strong></p><p><span>QS37a</span>主要用于测量高压工业绝缘材料的介质损失角的正切值及电容量。其采用了西林电桥的经典线路。主要可以测量电容器、互感器、变压器等各种电工油及各种固体绝缘材料在工频高压下的介质损耖�span>(tg</span><span>d</span><span>)</span>和电容量<span>( Cx)</span>，其测量线路采用“正接法”即测量对地绝缘的试品。由于电桥内附有一�?span>5KV</span>的高压电源及一台高压标准电容器，并将副桥和检流计与高压电桥有机的结合在一起，所以本电桥特别适应测量各类绝缘油和绝缘材料的介损（<span>tg</span><span>d</span>）及介电常数�?#949;）、�/p><p><span>l</span> 桥体本身带有<span>5Kv/100pF</span>标准电容<span>＋�/span>测量材料介损更为方便、�/p><p><span>l</span> 桥体内附电位跟踪器及指另仪，外围接线及少、�/p><p><span>l</span> 桥体采用了多样化的介损测量线路、�strong></strong></p><p><strong>测量范围及误�?/strong></p><p>�?span>Cn</span>＜�span>100pF R4</span>＜�span>3183.2</span>＇�span>W</span>）（卲�span>10K/</span>��）时</p><p><span></span></p><p>测量项目测量范围测量误差</p><p><span></span>电容野�span>Cx 40pF--20000pF </span>��<span>(0.5%Cx</span>＊�span>2pF) </span></p><p><span></span> 介质损耖�span>tg</span><span>d</span><span> 0</span>｝�span>1 </span>��＇�span>1.5</span>＄�span>tg</span><span>d</span><span>x</span>＊�span>1</span>��<span>10<sup>-4</sup></span>（�/p><p>�?span>Cn</span>＜�span>100pF R4</span>＜�span>318.3</span>＇�span>W</span>）（卲�span>1K/</span>��）时</p><p><span></span></p><p>测量项目测量范围测量误差</p><p><span></span>电容野�span>Cx 4pF--2000pF </span>��＇�span>0.5%Cx</span>＊�span>2pF</span>（�/p><p><span></span> 介质损耖�span>tg</span><span>d</span><span> 0</span>｝�span>0.1 </span>��＇�span>1.5</span>＄�span>tg</span><span>d</span><span>x</span>＊�span>1</span>��<span>10<sup>-4</sup></span>（�/p><p>Ｃｘ＝Ｒ<sub>３�/sub>��Ｃｎ／Ｒ<sub>２�/sub></p><p><span>tg</span><span>d</span>�?#969;��Ｑ�sub>３�/sub>��Ｂ�sub>３�/sub></p><p>高压电源技术特�?/p><p>电压输出９�span>0</span>｝�span>2500V/50Hz</span></p><p>高压电流输出９�span>0</span>｝�span>20mA</span></p><p><span></span>内置标准电容�?/p><p>电容量的名义值为<span>100pF</span></p><p><span>tg</span><span>d</span>小于<span>5</span>��<span>10<sup>-5</sup></span></p><p></p> </div>  <div class="cxd"> <div class="cxd_tit"><span></span>创新炸�/div> <p style=" color: #333; 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