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tcPro"><section class="home-main container clearfix"><div id="8bf2gy3" class="twoCol"><div id="dhet88k" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_dgdq/">電工電氣</a>?<a href="http://www.cdcfah.com/cp/second-dgdq_dgyqybwr/">電工儀器儀表</a>?<a href="http://www.cdcfah.com/cp/third-dgyqybwr_qtdgyqybpe/">其他電工儀器儀表</a>?濮陽電力儀表價格誠信經(jīng)營江蘇基頓電氣供應(yīng)</p><div id="qaskzvp" class="leftbox clearfix"><h1>濮陽電力儀表價格誠信經(jīng)營江蘇基頓電氣供應(yīng)</h1><div id="dnfcokr" class="proBig"><div id="kurifme" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/keaton/637237707520019531/4583604.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="n78f4rs" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/keaton/637237707520019531/4583604.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="qc27w2i" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>濮陽電力儀表價格</p><p><span>***更新：</span>2020-06-24 18:29:21</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="pz2wpbx" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">江蘇基頓電氣自動化有限公司</a></p><p><span>聯(lián)系人：</span>高經(jīng)理</p><p><span>郵箱: </span>215741001@qq.com</p><p><span>電話: </span>13328157222</p><p><span>傳真: </span>0510_</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0510-85027009</p><p><span>地址: </span>長安鎮(zhèn)友誼路28號</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="22yeldp" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="ts23sc7" class="box"><p><p> 直流類型 </p> <p> 主要采用磁電系電表和靜電系電表的測量機(jī)構(gòu)。磁電系電壓表由小量程的磁電系電流表與串聯(lián)電阻器(又稱分壓器)組成，濮陽電力儀表價格，比較低量程為十幾毫伏。為了擴(kuò)大電壓表量程，可以增大分壓器的電阻值。例如用50微安的電流表形成250伏的電壓表時，要使分壓器與測量機(jī)構(gòu)的總電阻值為250/[50×10^(-6)]=5×10^6歐=5兆歐，這相當(dāng)于電壓表的內(nèi)阻為20千歐/伏。為了避免電壓表的接入過多影響原工作狀態(tài)，要求電壓表有較高的內(nèi)阻，濮陽電力儀表價格。用幾個電阻組成的分壓器和測量機(jī)構(gòu)串聯(lián)，濮陽電力儀表價格，可形成多量程電壓表。靜電系電壓表的比較低量程為幾十伏，擴(kuò)大量程是靠改變電表內(nèi)部結(jié)構(gòu)和極間距離來達(dá)到。此外，電磁系電表的測量機(jī)構(gòu)在理論上也可用于測量直流電壓。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="濮陽電力儀表價格" src="https://tyunfile.71360.com/WaterMark/UploadFile/keaton/637237707520019531/4583604.jpg"></div><p> 頻率表是指測量頻率的機(jī)械式指示電表。頻率表種類很多，有電動系、鐵磁電動系和屬于整流式的變換器式頻率表等。 </p> <p> 原理<span style="display:none;"></span> </p> <p> 鐵磁電動系頻率表的測量機(jī)構(gòu)與電路如圖。帶有鐵心的固定線圈與電感器L、電容器C組成的串聯(lián)諧振電路,通常被調(diào)整在標(biāo)尺的中間頻率(例如50赫)時諧振?？蓜硬糠钟蓛蓚€線圈組成，其中動圈1與電容器C1串聯(lián)后與諧振電路并聯(lián)。接通電源時，可動部分所受轉(zhuǎn)動力,I、I1分別為固定線圈及動圈1中電流,θ為兩電流相量間夾角，K為系數(shù)。動圈2與電阻器R2、電感器L2構(gòu)成閉合回路。當(dāng)可動部分指針偏離標(biāo)尺中間位置α角時，動圈2將受到一個與偏轉(zhuǎn)角α成正比、并使指針返回中間位置的反抗力矩。當(dāng)被測頻率等于標(biāo)尺中間頻率時,諧振電路發(fā)生諧振,這時固定線圈中的電流與動圈1中電流相量間夾角θ=90°,因而轉(zhuǎn)動力矩M=0。于是可動部分在動圈2力矩的作用下，使指針指在標(biāo)尺的中間頻率（例如50赫）的刻度上。當(dāng)被測頻率偏離中間頻率時，諧振條件被破壞，轉(zhuǎn)動力矩不再為零，可動部分發(fā)生偏轉(zhuǎn)，直到轉(zhuǎn)動力矩與反抗力矩平衡時為止，可動部分將停在與被測頻率對應(yīng)的新位置上。改變串聯(lián)諧振電路的參數(shù)，可以獲得不同的頻率量程。 </p> <p> <br /> </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="濮陽電力儀表價格" src="https://tyunfile.71360.com/WaterMark/UploadFile/keaton/637237707544628906/9378764.jpg"></div><p> 多功能電力儀表在電力監(jiān)控系統(tǒng)的應(yīng)用： </p> <p> 多功能電力儀表可應(yīng)用于電力監(jiān)控系統(tǒng)，能耗管理系統(tǒng)中。多功能電力儀表有串行口（RS－485），允許連接開放式結(jié)構(gòu)的電腦網(wǎng)絡(luò)；應(yīng)用 Modbus－RTU通訊規(guī)約。上位機(jī)軟件讀取儀表的電流、電壓、頻率、有功功率、無功功率視在功率、電能、功率因數(shù)等，對建筑物能耗，工廠設(shè)備能耗進(jìn)行監(jiān)測，將多功能電力儀表的數(shù)據(jù)傳到上位機(jī)軟件，再通過上位機(jī)軟件的數(shù)據(jù)分析功能，進(jìn)行能耗管理，利用多功能電力儀表的開關(guān)量輸入功能，采集和顯示本地的開關(guān)信息，通過儀表的RS485數(shù)字通訊接口實現(xiàn)遠(yuǎn)程傳輸功能，即“遙信”功能。利用多功能電力儀表的開關(guān)量輸出功能，通過上位機(jī)發(fā)送通訊命令，到達(dá)儀表，來控制開關(guān)量的輸出端的閉合與打開（比如通過通訊遠(yuǎn)方分合斷路器），也可用于各種場所的報警指示。自身豐富的功能，配合上位機(jī)軟件，多功能電力儀表在工廠自動化，建筑物自動化，無人值守變電站，能耗管理系統(tǒng)，變壓器、發(fā)電機(jī)組、電容器組和電動機(jī)的分布式檢測等領(lǐng)域有著豐富的應(yīng)用。 </p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/377965.html</p></div></div></div></div></div><div id="dhtgd3o" class="page-right twoColRt"><div id="dspryfr" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="2gipgik" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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