供應1370-SL77;
1370-SL77。
變頻器——自動化工廠節能器
變頻器(Variable-frequencyDrive，VFD)是應用變頻技術與微電子技術，通過改變電機工作電源頻率方式來控制交流電動機的電力控制設備。變頻器主要由整流(交流變直流)、濾波、逆變(直流變交流)、制動單元、驅動單元、檢測單元微處理單元等組成。變頻器靠內部IG的開斷來調整輸出電源的電壓和頻率，根據電機的實際需要來提供其所需要的電源電壓，進而達到節能、調速的目的，另外，變頻器還有很多的保護功能，如過流、過壓、過載保護等等。
變頻器輸出為PWM波，含有較多的高次諧波。變頻功率傳感器通過對輸入的電壓、電流信號進行交流采樣，再將采樣值通過電纜、光纖等傳輸系統與數字量輸入變頻功率分析儀，數字量輸入變頻功率分析儀對電壓、電流的采樣值進行運算，可以獲取電壓有效值、電流有效值、基波電壓、基波電流、諧波電壓、諧波電流、有功功率、基波功率、諧波功率等參數。
就國內變頻器市場格局而言，業內人士將其概括為，變頻器通用領域內資企業占據80%以上的市場份額，競爭激烈導致10年價格大幅下滑;高性能市場仍以外資品牌為主，未來將成為國內變頻器企業的主攻方向。是國內智能化電氣研發、生產和銷售的為一體的高新技術企業。生產變頻調速器、電機軟起動器等工業自動化控制的廠家，產品采用重載型設計，過載能力強，具有超大起動和運行容量、完善的自動檢測、保護和控制性能，可以起動和控制任何類型的重型負載電動機，產品已廣泛應用于冶金、礦山、造紙、化工、建材、機械、電力、以及建筑系統等所有工業傳動領域。
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注：聯系我時，請說是在“傲立機床網”上看到的，謝謝！
