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href="/Article/dianyuanbianyaqidedi_1.html">電源變壓器的定義及性能解析</a></div> <div id="b42pvgx0g4xd" class="list4nr"> <div id="b42pvgx0g4xd" class="n_info_con" id="printableview"> <h3> 電源變壓器的定義及性能解析</h3> <div id="b42pvgx0g4xd" class="info_con_tit"> <div id="b42pvgx0g4xd" class="info_con_tit"> <div id="b42pvgx0g4xd" class="n_tit"> <span>文章出處??a href=""><a >深圳市晨飛電子有限公??/a></a></span><span>網(wǎng)責(zé)任編輯：<a >NSW</a></span><span>作者：<a >NSW</a></span><span>人氣??span id="cntrHits">-</span></span><span>發(fā)表時(shí)間??015-11-26 08:58:00</span> <div id="b42pvgx0g4xd" class="newchang">  <div class="b42pvgx0g4xd" id="ckepop"> <a class="jiathis jiathis_txt jtico jtico_jiathis" target="_blank">分享到：</a> <a class="jiathis_button_qzone">QQ空間</a> <a class="jiathis_button_tsina"> 新浪微博</a> <a class="jiathis_button_tqq">騰訊微博</a> <a class="jiathis_button_tsohu">搜狐微博</a> <a class="jiathis_button_t163">網(wǎng)易微博</a> <a class="jiathis_button_tools_1"></a><a class="jiathis_button_tools_2"></a> </div> <script type="text/javascript"> var jiathis_config = { "data_track_clickback": true };</script> <script type="text/javascript" src="http://v2.jiathis.com/code/jia.js?uid=899792" charset="utf-8"></script>  </div> </div> </div> </div> <div class="b42pvgx0g4xd" id="cntrBody"> <p> </p> <p><span style="font-size: 14px">　　<a href="http://m.cmqp.com.cn ">電源變壓??/a>的功能是功率傳送、電壓變換和絕緣隔離，作為一種主要的軟磁電磁元件，在電源技術(shù)中和電力電子技術(shù)中得到廣泛的應(yīng)用??/span></p> <p> </p> <p><span style="font-size: 14px">　　1??工作頻率變壓器鐵芯損耗與頻率關(guān)系很大，故應(yīng)根據(jù)使用頻率來設(shè)計(jì)和使用，這種頻率稱工作頻率??/span></p> <p> </p> <p><span style="font-size: 14px">　　2??額定功率在規(guī)定的頻率和電壓下，變壓器能長(zhǎng)期工作，而不超過規(guī)定溫升的輸出功率??/span></p> <p> </p> <p><span style="font-size: 14px">　　3??額定電壓指在變壓器的線圈上所允許施加的電壓，工作時(shí)不得大于規(guī)定值??/span></p> <p> </p> <p><span style="font-size: 14px">　　4??電壓比指變壓器初級(jí)電壓和次級(jí)電壓的比值，有空載電壓比和負(fù)載電壓比的區(qū)別??/span></p> <p> </p> <p><span style="font-size: 14px">　　5 、空載電流變壓器次級(jí)開路時(shí)，初級(jí)仍有一定的電流，這部分電流稱為空載電流?？蛰d電流由磁化電流(產(chǎn)生磁??和鐵損電??由鐵芯損耗引??組成。對(duì)??0Hz電源變壓器而言，空載電流基本上等于磁化電流??/span></p> <p> </p> <p><span style="font-size: 14px">　　6 、空載損耗指變壓器次級(jí)開路時(shí)，在初級(jí)測(cè)得功率損耗。主要損耗是鐵芯損耗，其次是空載電流在初級(jí)線圈銅阻上產(chǎn)生的損??銅損)，這部分損耗很小??/span></p> <p> </p> <p><span style="font-size: 14px">　　7 、效率指次級(jí)功率P2與初級(jí)功率P1比值的百分比。通常變壓器的額定功率愈大，效率就愈高??/span></p> <p> </p> <p><span style="font-size: 14px">　　8 、絕緣電阻表示變壓器各線圈之間、各線圈與鐵芯之間的絕緣性能。絕緣電阻的高低與所使用的絕緣材料的性能、溫度高低和潮濕程度有關(guān)??/span></p> <p><br /> <span style="font-size: 14px"> </span></p> </div> <div id="b42pvgx0g4xd" class="apage" id="showfenye">  <script type="text/javascript"> var pagecont=1; if(pagecont > 2) { var ss = new Cls_jsPage(1, 1, 5, "ss"); ss.setPageSE("dianyuanbianyaqidedi_", ".html"); ss.setPageInput("Page"); ss.setUrl(""); ss.setPageFrist("<a disabled='true'class='ob'>首頁</a>", "首頁"); ss.setPagePrev("<a disabled='true'class='ob'>上一??/a>", "上一??); ss.setPageNext("<a 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