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font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; line-height: 24px; font-family: 宋體; color: rgb(85, 85, 85); background-color: rgb(255, 255, 255);"><strong>如何選擇上?？档请姎夥至髌?/strong><br microsoft="" font-size:="" white-space:="" background-color:="" style="margin: 0px;"/><span microsoft="" font-size:="" background-color:="" style="margin: 0px;">用于測量直流電流的直流電流表，其輸入信號(hào)一般不允許超過DC2A，超過DC2A就應(yīng)該外接分流器。主要是受接觸彈片和PCB鋪銅的載流能力限制，長時(shí)間過載會(huì)引起發(fā)熱甚至燒壞儀表。</span><br microsoft="" font-size:="" white-space:="" background-color:="" style="margin: 0px;"/><br microsoft="" font-size:="" white-space:="" background-color:="" style="margin: 0px;"/><span microsoft="" font-size:="" background-color:="" style="margin: 0px;">對(duì)于分流器，二次輸出有幾種規(guī)格：75mV、100mV、200mV等。生產(chǎn)廠家也可以根據(jù)客戶需求定制。</span><br microsoft="" font-size:="" white-space:="" background-color:="" style="margin: 0px;"/><br microsoft="" font-size:="" white-space:="" background-color:="" style="margin: 0px;"/><span microsoft="" font-size:="" background-color:="" style="margin: 0px;">一般情況下，分流上有四個(gè)螺栓，兩個(gè)大的，兩個(gè)小的，用兩個(gè)大的螺栓使分流器串聯(lián)到待測電流信號(hào)的回路中。兩個(gè)小螺栓接入儀表信號(hào)輸入端，應(yīng)注意信號(hào)的極性，電流流入分流器的那端為正端，接儀表信號(hào)輸入端的正輸入端；電流流出分流器的那端為負(fù)端，接儀表信號(hào)輸入端的負(fù)輸入端。</span><br microsoft="" font-size:="" white-space:="" background-color:="" style="margin: 0px;"/><br microsoft="" font-size:="" white-space:="" background-color:="" style="margin: 0px;"/><span microsoft="" font-size:="" background-color:="" style="margin: 0px;">分流器是測量直流電流用的；</span><br microsoft="" font-size:="" white-space:="" background-color:="" style="margin: 0px;"/><span microsoft="" font-size:="" background-color:="" style="margin: 0px;">分流器實(shí)際就是一個(gè)阻值很小的電阻，當(dāng)有直流電流通過時(shí)，產(chǎn)生壓降，供直流電流表顯示；</span><br microsoft="" font-size:="" white-space:="" background-color:="" style="margin: 0px;"/><span microsoft="" font-size:="" background-color:="" style="margin: 0px;">直流電流表實(shí)際是電壓表，滿度值75mV；</span><br microsoft="" font-size:="" white-space:="" background-color:="" style="margin: 0px;"/><span microsoft="" font-size:="" background-color:="" style="margin: 0px;">直流電流表和分流器是配套使用的；</span><br microsoft="" font-size:="" white-space:="" background-color:="" style="margin: 0px;"/><span microsoft="" font-size:="" background-color:="" style="margin: 0px;">比如：100A電流表配套的分流器阻值為0.00075歐；</span><br microsoft="" font-size:="" white-space:="" background-color:="" style="margin: 0px;"/><span microsoft="" font-size:="" background-color:="" style="margin: 0px;">即100A*0.00075歐=75mV；</span><br microsoft="" font-size:="" white-space:="" background-color:="" style="margin: 0px;"/><span microsoft="" font-size:="" background-color:="" style="margin: 0px;">50A電流表配套的分流器阻值為0.0015歐；</span><br microsoft="" font-size:="" white-space:="" background-color:="" style="margin: 0px;"/><span microsoft="" font-size:="" background-color:="" style="margin: 0px;">50A*0.0015歐=75mV。</span><br microsoft="" font-size:="" white-space:="" background-color:="" style="margin: 0px;"/><span microsoft="" font-size:="" background-color:="" style="margin: 0px;"> </span><br microsoft="" font-size:="" white-space:="" background-color:="" style="margin: 0px;"/><br microsoft="" font-size:="" white-space:="" background-color:="" style="margin: 0px;"/><strong microsoft="" font-size:="" white-space:="" background-color:="" style="margin: 0px;">三，外觀尺寸圖：</strong></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; line-height: 24px; font-family: 宋體; color: rgb(85, 85, 85); background-color: rgb(255, 255, 255);"><strong microsoft="" font-size:="" white-space:="" background-color:="" style="margin: 0px;"></strong></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; line-height: 24px; font-family: 宋體; color: rgb(85, 85, 85); background-color: rgb(255, 255, 255); text-align: center;"><img src="https://img52.chem17.com/9/20241201/638686390896677480897.png" alt="49878095-0f4f-4fd0-a44d-02b7ee6bd64a.png" style="margin: 0px; padding: 0px; border: 0px; max-width: 100%; max-height: 100%; vertical-align: middle; width: 800px;"/></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; line-height: 24px; font-family: 宋體; color: rgb(85, 85, 85); background-color: rgb(255, 255, 255);"><strong microsoft="" font-size:="" white-space:="" background-color:="" style="margin: 0px;"></strong><br style="margin: 0px;"/></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; line-height: 24px; font-family: 宋體; color: rgb(85, 85, 85); background-color: rgb(255, 255, 255);"><strong microsoft="" font-size:="" white-space:="" background-color:="" style="margin: 0px;"></strong></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; line-height: 24px; font-family: 宋體; color: rgb(85, 85, 85); background-color: rgb(255, 255, 255); text-align: center;"><img src="https://img49.chem17.com/9/20241201/638686390749819138818.png" alt="分流器規(guī)格尺寸.png" style="margin: 0px; padding: 0px; border: 0px; max-width: 100%; max-height: 100%; vertical-align: middle; width: 800px;"/></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; line-height: 24px; font-family: 宋體; color: rgb(85, 85, 85); background-color: rgb(255, 255, 255);"><strong microsoft="" font-size:="" white-space:="" background-color:="" style="margin: 0px;"></strong><strong style="margin: 0px;"><span style="margin: 0px; font-size: 16px;">分流器種類 </span></strong><span style="margin: 0px; font-size: 16px;"><br style="margin: 0px;"/></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; line-height: 24px; font-family: 宋體; color: rgb(85, 85, 85); background-color: rgb(255, 255, 255);"><span style="margin: 0px; font-size: 16px;">FL2分流器 FL19系列分流器 FL2C系列分流器 FL21系列分流器 FL21系列分流器 FL29系列分流器 FL39系列分流器 FL27系列分流器 FL28系列分流器 FL-F系列分流器 FL-P系列分流器 FL-S系列分流器 </span></p><p><br/></p> <div id="iqaqewgi6e" class="clear"></div> </div> <div id="iqaqewgi6e" class="article"> <p>上一篇：<a href="/Article-3888708.html">觸摸屏智能回路電阻測試儀產(chǎn)品特點(diǎn)</a></p> <p>下一篇：<a href="/Article-3880148.html">日本日置 FT6380 鉗形接地電阻測試儀基本參數(shù)</a></p> </div> <div id="iqaqewgi6e" class="clear"></div> </div> </div> <div id="iqaqewgi6e" class="n-9"> <div id="iqaqewgi6e" class="c-right"> <div id="iqaqewgi6e" class="c-1 r-pro"> <div id="iqaqewgi6e" class="c-left"> <div 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