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class="leftbox clearfix"><h1>機房諧波保護器服務(wù)為先上?？品评针姎夤?yīng)</h1><div id="fwif7zq" class="proBig"><div id="dx2he2d" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shkfldq/637378544606738281/9171712.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="vprya8w" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shkfldq/637378544606738281/9171712.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="v7f3ise" 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>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>機房諧波保護器,諧波保護器</p><p><span>***更新：</span>2021-01-30 07:14:33</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="k2elnu7" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上?？品评针姎庥邢薰?/a></p><p><span>聯(lián)系人：</span>趙武</p><p><span>郵箱: </span>137160265@qq.com</p><p><span>電話: </span>13777749559</p><p><span>傳真: </span>0577_61763663</p><p><span>網(wǎng)址: </span>http://www.kofler.com.cn</p><p><span>手機: </span>0577-61763663</p><p><span>地址: </span>尚學(xué)路225、229號3幢5039室</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="3ye7pwd" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="7tuo7of" class="box"><p><p style="text-indent:25px">由于高次諧波的存在，工廠里經(jīng)常會遇到如下問題： 1、對變壓器的影響諧波電壓可使變壓器的磁滯及渦流損耗增加，使絕緣材料承受的電氣應(yīng)力增大，而諧波電流使變壓器的銅耗增加，這種危害對換流變壓尤為嚴(yán)重，機房諧波保護器，機房諧波保護器，機房諧波保護器，因為交流濾波器通常裝在交流側(cè)，諧波電流仍通過換流變壓器，濾波器對它不起作用。 2、對電容器和電纜的影響在諧波電壓作用下，使電容器產(chǎn)生額外的功率損耗。電容器對供電系統(tǒng)其它部分產(chǎn)生串聯(lián)、并聯(lián)諧振，可能發(fā)生危險的過電壓及過電流，這往往引起電容器熔絲熔斷或使電容器損壞。在諧波電壓作用下，電纜的介質(zhì)損耗也增加。使電力電纜絕緣損壞，電纜發(fā)生單相接地故障的次數(shù)明顯增加。諧波保護器產(chǎn)品特點：適用性廣適合各種精密敏感性負(fù)載。機房諧波保護器</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="機房諧波保護器,諧波保護器" src="https://tyunfile.71360.com/UploadFile/shkfldq/637378544606738281/9171712.png"></div><p style="text-indent:25px">采用諧波保護器的好處： 1、凈化電源諧波保護器具有很強的防止和消除能力，較高可消除99%的因各種諧波引起的電壓、電流的畸變，防止諧波引發(fā)的計算機屏幕頻閃，以及由于開關(guān)、短路、負(fù)載變化引起的燈光頻閃，提高IT設(shè)備諧波環(huán)境，防止數(shù)據(jù)網(wǎng)絡(luò)堵塞。 IT設(shè)備是精密的設(shè)備，對各種頻率的干擾十分敏感，由高次諧波引起的電壓畸變將嚴(yán)重影響IT設(shè)備質(zhì)量，使通信線路比特錯誤率提高，甚至可以高到使整個網(wǎng)絡(luò)癱瘓。 2、防止保護裝置的誤跳閘諧波電流會導(dǎo)致斷路器誤跳閘或是在該跳閘的時候根本不跳。蘇州門衛(wèi)諧波保護器頻率為基波頻率的整數(shù)倍的正弦波分量稱為諧波。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="機房諧波保護器,諧波保護器" src="https://tyunfile.71360.com/UploadFile/shkfldq/637378544592451172/7421240.png"></div><p style="text-indent:25px">低壓配電系統(tǒng)諧波污染主要危害： (1)當(dāng)配電線路與通訊線路平行或相距較近時，由于兩者之間存在靜電感應(yīng)和電磁感應(yīng)，容易形成電場耦合和磁場耦合，三次諧波分量效應(yīng)更顯強烈，并在通訊系統(tǒng)內(nèi)產(chǎn)生聲頻干擾，從而降低信號的傳輸質(zhì)量，破壞信號的正常傳輸，不僅影響通話的清晰度，嚴(yán)重時將威脅通訊設(shè)備及人身安全； (2導(dǎo)致低壓配電設(shè)備工作異常，諧波畸變可使配電用低壓電器設(shè)備(斷路器、漏電保護器、接觸器、熱繼電器等)發(fā)生故障。諧波電流使低壓電器設(shè)備鐵損、銅損增加，集膚效應(yīng)加劇，從而產(chǎn)生異常發(fā)熱、誤動作等故障； (3)導(dǎo)致電網(wǎng)的各類保護及自動裝置產(chǎn)生誤動或拒動，特別在普遍應(yīng)用的微機保護、綜合自動化裝置中表現(xiàn)突出，容易引起區(qū)域系統(tǒng)瓦解，造成故障擴大等惡性后果； (4)建筑物突發(fā)火災(zāi)被證明也有一部分與電網(wǎng)諧波有關(guān)。同時，電網(wǎng)諧波還會嚴(yán)重削弱和干擾電網(wǎng)的經(jīng)濟運行，造成電網(wǎng)“公害”。</p><p style="text-indent:25px">針對電視臺、劇場、會堂存在的諧波問題，坤友電氣建議方案如下： 1、采用電力側(cè)諧波與用戶側(cè)諧波同時治理的方案。由于電視臺、劇場、會堂特殊情況，諧波分布比較廣，而且均造成了一定的危害：電力側(cè)諧波造成電容器的多次燒毀。用戶側(cè)諧波造成IBUS等精密控制設(shè)備的多次燒毀。所以必須同時治理電力側(cè)諧波與用戶側(cè)諧波。 2、采用靠近諧波源的方式。 3、根據(jù)坤友電氣諧波治理的經(jīng)驗，IBUS等精密控制設(shè)備的燒毀說明用戶側(cè)諧波較為嚴(yán)重，所以在重要的設(shè)備處加強諧波保護。諧波保護器可以接收多種輸入信號。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="機房諧波保護器,諧波保護器" src="https://tyunfile.71360.com/UploadFile/shkfldq/637378544727529297/4871919.png"></div><p style="text-indent:25px">智能建筑一般為上等或二級負(fù)荷，由電業(yè)供給兩回高壓線路，諧波保護裝置一般設(shè)在變電所低壓開關(guān)柜列的末端，每回路宜各配置一套諧波保護裝置，一般智能建筑低壓主接線為單母線分兩段接線。在該情況下，諧波保護裝置應(yīng)設(shè)在兩段母線的低壓開關(guān)柜柜列末端，采樣點與注入點參見配電系統(tǒng)圖。諧波保護器（三相）及K諧波保護器（單相）則根據(jù)智能建筑諧波源設(shè)備的的空間分布情況及數(shù)量分別配置。某上等寫字樓電纜豎井內(nèi)配電箱實測記錄的電流波形，中性線電流非常大，業(yè)主稱該處已多次發(fā)生斷電、斷纜事故。諧波保護器功能特點：在被動并聯(lián)電路中，設(shè)備本身幾乎沒有功耗，具有較高的經(jīng)濟效益。蘇州三相諧波保護器一般多少錢</p><p style="text-indent:25px">諧波保護器選擇合適的性能是很重要的。機房諧波保護器</p><p style="text-indent:25px">諧波危害的現(xiàn)象精密設(shè)備的干擾：由于高次諧波的干擾會造成高精密設(shè)備（如CT機，大型計算機，EIB，控制機房等設(shè)備）的運行故障通訊系統(tǒng)中的音頻干擾通訊系統(tǒng)經(jīng)常提供諧波問題的要線索。通訊電纜通常與中線導(dǎo)體并排敷設(shè)。中線導(dǎo)體中三次奇數(shù)倍諧波對通訊電纜產(chǎn)生的感應(yīng)干擾，可以在電話線中聽到。樓宇建筑中的諧波：諧波的前兆在整個配電系統(tǒng)都可以顯示，而不一定非要在諧波源。例如：熒光燈照明系統(tǒng)的諧波可以回流到配電變壓器中甚至到達他的一次繞組中。這個變壓器可能處于良好的工作狀態(tài)，但還是會對其他負(fù)載產(chǎn)生的諧波的損壞。母線和接線板的過熱：中線母線和接線板的尺寸是按鈕電流的額定值設(shè)計的，并不包括諧波引起的附加負(fù)載。當(dāng)中線導(dǎo)體由于三次奇數(shù)倍諧波而過載時，它們也會過載。對于它們的過熱現(xiàn)象，也可以懷疑是由上述諧波造成的。機房諧波保護器</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3078469.html</p></div></div></div></div></div><div id="38i3o7e" class="page-right twoColRt"><div id="os289d3" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="g8vx7ho" 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配件哪家強信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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