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#f30;"></span></p><p><span>產(chǎn)品關鍵詞：</span>上海電網(wǎng)諧波保護器報價,諧波保護器</p><p><span>***更新：</span>2021-01-18 12:18:19</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="lkgxjfr" 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>尚學路225、229號3幢5039室</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="ujqsu7k" class="page-proshow02"><p class="title">詳細說明</p><div id="fe7i88z" 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重，因為交流濾波器通常裝在交流側，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，上海電網(wǎng)諧波保護器報價，電纜的介質損耗也增加，上海電網(wǎng)諧波保護器報價。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。 3）對斷路器運行的影響諧波含量較多的電流將使斷路器的遮斷能力降低。當存在嚴重的諧波電流時，某些斷路器的磁吹線圈不能正常工作。 4）對輸電線的影響當諧波電流流過輸電線（電纜）時，導線的直徑愈大，因集膚效應而使諧波頻率下的電阻增大，諧波產(chǎn)生的附加損耗也愈大，同時引起無功功率增大，功率因數(shù)下降。 5）嚴重干擾控制設備在畸變電源供線性負荷時，控制設備的運行會受到干擾，通常表現(xiàn)為死機、誤動、重啟，帶來巨大的經(jīng)濟損失，上海電網(wǎng)諧波保護器報價。諧波保護器產(chǎn)品特點：高可靠性具備效率高、響應快、無噪聲等特點，可極為有效地將諧波控制在發(fā)生源。上海電網(wǎng)諧波保護器報價</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海電網(wǎng)諧波保護器報價,諧波保護器" src="https://tyunfile.71360.com/UploadFile/shkfldq/637378544493271484/3540341.png"></div><p style="text-indent:25px">諧波危害的現(xiàn)象精密設備的干擾：由于高次諧波的干擾會造成高精密設備（如CT機，大型計算機，EIB，控制機房等設備）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體并排敷設。中線導體中三次奇數(shù)倍諧波對通訊電纜產(chǎn)生的感應干擾，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計的，并不包括諧波引起的附加負載。當中線導體由于三次奇數(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。上海電網(wǎng)諧波保護器報價諧波保護器向用戶開啟了內部參數(shù)的設定界面。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海電網(wǎng)諧波保護器報價,諧波保護器" src="https://tyunfile.71360.com/UploadFile/shkfldq/637378544551083984/8845032.png"></div><p style="text-indent:25px">諧波保護裝置應用：諧波保護裝置從源頭消除諧波污染，為用電設備提供諧波保護。在工廠的變電所，每個低壓回路的總進線處建議配置一套KYXBQ諧波保護裝置。一般在工廠存在著多個車間，每個車間都有各自的變壓器出現(xiàn)，每個變壓器出現(xiàn)對應的低壓主進線多為單母線分兩段的接線方式，則諧波保護裝置應在各個低壓總進線旁。諧波保護器應用范圍： 1、智能控制系統(tǒng)如PLC、DCS等的電源處保證控制電源平穩(wěn)，控制系統(tǒng)穩(wěn)定運行，避免死機及誤動作等情況。 2、重要的PLC控制器電源旁PLC等控制設備受到干擾會導致誤動、死機、壽命縮短及被控設備抖動等現(xiàn)象。根據(jù)設備的重要情況，重要的設備還可以再就近配置諧波保護器（單相）</p><p style="text-indent:25px">諧波危害的現(xiàn)象變壓器的不佳表現(xiàn)：諧波可以引起變壓器的芯損和銅損。變壓器通常按50HZ的相電流負載設計。由于渦流和磁滯現(xiàn)象，高頻率的諧波電流使芯損增加，與同樣的基波電流相比產(chǎn)生更多的發(fā)熱。計算機控制設備死機：由于諧波的頻率與計算機、PLC等設備的工作頻率非常接近，從而嚴重干擾其正常工作，經(jīng)常會出現(xiàn)死機、數(shù)據(jù)丟失、系統(tǒng)重啟等現(xiàn)象。斷路器的誤動作：對于任何一種斷路器，如果所有負載的總和還不至于使斷路器動作，那么諧波很可能是其動作的原因。電氣柜的震動：按50HZ設計的配電柜在高頻諧波電流產(chǎn)生的磁場下會發(fā)生機械諧振。如果配電柜振動并發(fā)出嗡嗡的聲音，很可能是由于在諧波頻率下的諧振造成的。諧波保護器提高IT設備諧波環(huán)境，防止數(shù)據(jù)網(wǎng)絡堵塞。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海電網(wǎng)諧波保護器報價,諧波保護器" src="https://tyunfile.71360.com/UploadFile/shkfldq/637378544648662109/9308782.png"></div><p style="text-indent:25px">在串聯(lián)諧振狀態(tài)下，濾波回路的合成阻抗XS接近于0，因此可對相關諧波形成“短路”。在諧振頻率以下濾波回路呈容性，因此能夠輸出容性基波無功功率以補償感性無功功率。在諧振頻率以上濾波回路呈感性。由于濾波回路在諧振點以下呈容性，所以在其特征頻率以下又與電網(wǎng)電感形成并聯(lián)諧振回路。如果在這個頻率范圍內沒有特征諧波，則并聯(lián)諧振對電網(wǎng)不會產(chǎn)生危害。由于濾波回路的主要任務是吸收電網(wǎng)諧波，所以限制了對基波無功功率進行調節(jié)的靈活性，只能對各個回路進行投切，投入的順序為從低次到高次，切除的順序為從高次到低次。對于容量較大的補償濾波裝置，諧波保護器可以采取純?yōu)V波回路和失諧濾波回路結合的方法，即純?yōu)V波回路固定運行，補償基本負荷，失諧濾波回路作為調節(jié)運行。諧波保護器的工作時的精度是很準確的。上海電網(wǎng)諧波保護器報價</p><p style="text-indent:25px">諧波可以導致配電系統(tǒng)本身或聯(lián)接在該系統(tǒng)上的設備故障。上海電網(wǎng)諧波保護器報價</p><p style="text-indent:25px">諧波保護器維修注意事項：1、在濕潤條件下檢修諧波保護器毛病時，對于印刷路線用萬用表測其各點能否通順很有多余，由于這種狀況下的主要毛病是銅箔侵蝕。2、修繕精細諧波保護器時，如沒有慎將小零件彈飛，可采取磁石掃描和視野掃描辦法進行尋覓3、用萬用表歐姆擋時，記住不要帶電丈量。4、檢測電源中的濾波電客時，應先將電解電料皿的正陰極短路一下，并且短路時不要用表筆線來接替導線對于電料皿進行高質量放電，由于那樣容易燒斷芯線?？梢匀∫恢粠纛^引線的220Vv，60~100W的燈，接于電料皿的兩端，正在放電霎時電燈泡會閃亮。上海電網(wǎng)諧波保護器報價</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/2902697.html</p></div></div></div></div></div><div id="akr8l8r" class="page-right twoColRt"><div id="k8zqcd2" 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