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變頻器的保護功能
發布時間:2015-04-15        瀏覽次數:799        返回列表
 變頻器的保護功能可分為以下兩類:

(1)檢知異常狀態后自動地進行修正動作,如過電流失速防止,再生過電壓失速防止。

(2)檢知異常后封鎖電力半導體器件PWM控制信號,使電機自動停車。如過電流切斷、再生過電壓切斷、半導體冷卻風扇過熱和瞬時停電保護等。

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