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<span>防爆空調(diào)的壓縮機(jī)啟動(dòng)方式</span></p> </div>   <div id="isn21yfjkz7" class="ly_NyNewsdetail"> <h1 class="NyNewsdetail_title">防爆空調(diào)的壓縮機(jī)啟動(dòng)方式</h1> <div id="isn21yfjkz7" class="NyNewsdetail_tips">更新時(shí)間：2020-12-14 點(diǎn)擊次數(shù)：1719</div> <div id="isn21yfjkz7" class="NyNewsdetail_con"> <p> <strong><span style="font-size:16px"><span style="font-family:宋體"><a >防爆空調(diào)</a>的壓縮機(jī)啟動(dòng)方式</span></span></strong></p><p style="text-align:justify"><span style="font-size:14px"><span style="font-family:宋體"><span style="color:rgb(0, 0, 0)">壓縮機(jī)的幾種啟動(dòng)方式：</span></span></span></p><p style="text-align:justify"><span style="font-size:14px"><span style="font-family:宋體"><span style="color:rgb(0, 0, 0)">1）直接啟動(dòng)</span></span></span></p><p style="text-align:justify"><span style="font-size:14px"><span style="font-family:宋體"><span style="color:rgb(0, 0, 0)">2）星角啟動(dòng)</span></span></span></p><p style="text-align:justify"><span style="font-size:14px"><span style="font-family:宋體"><span style="color:rgb(0, 0, 0)">3）軟啟動(dòng)方式</span></span></span></p><p style="text-align:justify"><span style="font-size:14px"><span style="font-family:宋體"><span style="color:rgb(0, 0, 0)">4）變頻啟動(dòng)</span></span></span></p><p style="text-align:justify"><span style="font-size:14px"><span style="font-family:宋體"> <img alt="" src="http://img80.chem17.com/2/20201214/637435358783316779715.jpg" style="height:333px; width:532px" /></span></span></p><p style="text-align:justify"><span style="font-size:14px"><span style="font-family:宋體"><span style="color:rgb(0, 0, 0)">直接啟動(dòng)：</span></span></span></p><p style="text-align:justify"><span style="font-size:14px"><span style="font-family:宋體"><span style="color:rgb(0, 0, 0)">這種啟動(dòng)方式主要應(yīng)用在小功率空壓機(jī)上，啟動(dòng)電流一般為額定電流的7－8倍，啟動(dòng)瞬間對(duì)電網(wǎng)危害較大。</span></span></span></p><p style="text-align:justify"><span style="font-size:14px"><span style="font-family:宋體"><span style="color:rgb(0, 0, 0)">常用于相對(duì)較小的壓縮機(jī)（制冷壓縮機(jī)、空氣壓縮機(jī)等）。</span></span></span></p><p style="text-align:justify"><span style="font-size:14px"><span style="font-family:宋體"><span style="color:rgb(0, 0, 0)">通常由1接觸器、1空開(kāi)，1熱繼組成。</span></span></span></p><p style="text-align:justify"><span style="font-size:14px"><span style="font-family:宋體"> <img alt="" src="http://img78.chem17.com/2/20201214/637435359501200513103.jpg" style="height:350px; width:208px" /></span></span></p><p style="text-align:justify"><span style="font-size:14px"><span style="font-family:宋體"> <span style="color:rgb(0, 0, 0)">星角啟動(dòng)：</span></span></span></p><p style="text-align:justify"><span style="font-size:14px"><span style="font-family:宋體"><span style="color:rgb(0, 0, 0)">啟動(dòng)電流為額定電流的3－4倍，啟動(dòng)電流比直接啟動(dòng) 電流小。</span></span></span></p><p style="text-align:justify"><span style="font-size:14px"><span style="font-family:宋體"><span style="color:rgb(0, 0, 0)">在星角切換過(guò)程中會(huì)有大約為額定電流4－6倍的尖峰電流。對(duì)電網(wǎng)及設(shè)備也有相當(dāng)?shù)奈：Α?/span></span></span></p><p style="text-align:justify"><span style="font-size:14px"><span style="font-family:宋體"><span style="color:rgb(0, 0, 0)">目前由于成本原因，此方式廣泛的應(yīng)用在壓縮機(jī)起停中，但是隨著軟啟動(dòng)器和變頻器的廣泛應(yīng)用。越來(lái)越多的應(yīng)用被軟啟動(dòng)器和變頻所替代（尤其大功率的壓縮機(jī)）。</span></span></span></p><p style="text-align:justify"><span style="font-size:14px"><span style="font-family:宋體"><img alt="" src="http://img78.chem17.com/2/20201214/637435359501512515977.jpg" style="height:346px; width:260px" /> </span></span></p><p style="text-align:justify"><span style="font-size:14px"><span style="font-family:宋體"> </span></span></p><p style="text-align:justify"><span style="font-size:14px"><span style="font-family:宋體"><span style="color:rgb(0, 0, 0)">軟啟動(dòng)方式：</span></span></span></p><p style="text-align:justify"><span style="font-size:14px"><span style="font-family:宋體"><span style="color:rgb(0, 0, 0)">采用軟啟動(dòng)方式的好處：</span></span></span></p><p style="text-align:justify"><span style="font-size:14px"><span style="font-family:宋體"><span style="color:rgb(0, 0, 0)">減少維護(hù)：</span></span></span></p><p style="text-align:justify"><span style="font-size:14px"><span style="font-family:宋體"><span style="color:rgb(0, 0, 0)">傳統(tǒng)的星角啟動(dòng)方式在電機(jī)啟動(dòng)過(guò)程中，接觸器吸合斷開(kāi)會(huì)通過(guò)很大的電流，造成接觸器壽命減少；</span></span></span></p><p style="text-align:justify"><span style="font-size:14px"><span style="font-family:宋體"><span style="color:rgb(0, 0, 0)">采用軟啟動(dòng)器控制機(jī)組主電機(jī)，通過(guò)可控硅SCR的門極觸發(fā)控制電路的控制，控制或限制電機(jī)啟動(dòng)電流；</span></span></span></p><p style="text-align:justify"><span style="font-size:14px"><span style="font-family:宋體"><span style="color:rgb(0, 0, 0)">增加系統(tǒng)可靠性：</span></span></span></p><p style="text-align:justify"><span style="font-size:14px"><span style="font-family:宋體"><span style="color:rgb(0, 0, 0)">傳統(tǒng)星角啟動(dòng)方式，通過(guò)元件組合才能實(shí)現(xiàn)實(shí)現(xiàn)過(guò)載，欠載，相序保護(hù)，造成接線麻煩，故障率高。系統(tǒng)可靠性差；</span></span></span></p><p style="text-align:justify"><span style="font-size:14px"><span style="font-family:宋體"><span style="color:rgb(0, 0, 0)">軟啟動(dòng)器本身集成多種保護(hù)，接線少，系統(tǒng)可靠性強(qiáng)。</span></span></span></p><p style="text-align:justify"><span style="font-size:14px"><span style="font-family:宋體"> <img alt="" src="http://img78.chem17.com/2/20201214/637435359501824517692.jpg" style="height:399px; width:284px" /></span></span></p><p style="text-align:justify"><span style="font-size:14px"><span style="font-family:宋體"> </span></span></p><p style="text-align:justify"><span style="font-size:14px"><span style="font-family:宋體"><span style="color:rgb(0, 0, 0)">變頻啟動(dòng)方式：</span></span></span></p><p style="text-align:justify"><span style="font-size:14px"><span style="font-family:宋體"><span style="color:rgb(0, 0, 0)">涵蓋軟啟動(dòng)器方式的所有優(yōu)點(diǎn)。相對(duì)軟啟動(dòng)方式具有更好的優(yōu)點(diǎn)：</span></span></span></p><p style="text-align:justify"><span style="font-size:14px"><span style="font-family:宋體"><span style="color:rgb(0, 0, 0)">啟動(dòng)電流更小，1.5In以下，所以所需的電網(wǎng)容量也小，啟動(dòng)平穩(wěn)。</span></span></span></p><p style="text-align:justify"><span style="font-size:14px"><span style="font-family:宋體"><span style="color:rgb(0, 0, 0)">可實(shí)現(xiàn)壓縮機(jī)調(diào)速，根據(jù)實(shí)際負(fù)荷調(diào)整壓縮機(jī)的轉(zhuǎn)速，實(shí)現(xiàn)節(jié)能。</span></span></span></p><p style="text-align:justify"><span style="font-size:14px"><span style="font-family:宋體"><span style="color:rgb(0, 0, 0)">相對(duì)于軟啟動(dòng)器，保護(hù)更加豐富，診斷更加容易，人機(jī)界面更加友好。</span></span></span></p><p style="text-align:justify"><span style="font-size:14px"><span style="font-family:宋體"><span style="color:rgb(0, 0, 0)">實(shí)現(xiàn)更多通訊方式，方便集成不同控制系統(tǒng)中。</span></span></span></p><p style="text-align:justify"><span style="font-size:14px"><span 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