維特銳集團股份有限公司上海分公司
主營產品: KRACHT流量計,KRACHT齒輪流量計,VSE流量計,meister流量開關,麥斯特流量計 |
聯系電話
維特銳集團股份有限公司上海分公司
主營產品: KRACHT流量計,KRACHT齒輪流量計,VSE流量計,meister流量開關,麥斯特流量計 |
聯系電話
ABB變頻器*提供的價格十分的優惠!
ABB變頻器按型號直接訂購即可!
選擇ABB變頻器*注意十分需要ABB變頻器的手控器!
ABB作為一個*的性超級跨國公司,不僅可為用戶提供全套的*自動化產品(包括DCS、現場儀表及變頻器等),而且有能力提供世界*的各種電氣產品,同時提供全面的工程服務,是真正的一攬子供應商。ABB儀表產品部于近期在中國上海新建壓力變送器裝配線和流量生產裝置,以加強壓力變送器和流量計業務的地位并更好服務中國客戶。
ABB變頻器電網質量對變頻器的影響
在沖擊負載如電焊機、電弧爐、軋鋼機等場合,電壓經常出現閃變;在一個車間中,有多臺變頻器等容性整流負載在工作時,其產生的諧波對于電網質量有很嚴重的污染,對設備本身也有相當的破壞作用,輕則不能夠連續正常運行,重則造成設備輸入回路的損壞。可以采取下列的措施。
1)在沖擊負載如電焊機、電弧爐、軋鋼機等場合建議用戶增加無功靜補裝置,提高電網功率因數和質量。
2) 在變頻器比較集中的車間,建議采用集中整流,直流共母線供電方式。建議用戶采用12脈沖整流模式。優點是諧波小、節能,特別適用于頻繁起動、制動,電動機處于既電動運行與發電運行的場合。
3)變頻器輸入側加裝無源LC濾波器,減小輸入諧波,提高功率因數,可靠性高,效果好。
4)變頻器輸入側加裝有源PFC 裝置,效果,但成本較高。
ABB變頻器實物拍攝:
ABB變頻器產品型號:
ACS800-01-0003-3+P901
ACS800-01-0004-3+P901
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