功率單元A5E38977502變頻器可議價
功率單元A5E38977502變頻器可議價
功率單元A5E38977502變頻器可議價
功率單元A5E38977502變頻器參數表
功率單元A5E38977502變頻器說明書
A5E38977502變頻器功率的選用
係統效率等於變頻器效率與電動機效率的乘積,只有兩者都處在較高的效率下工作時,則係統效率才較高。
A5E38977502從效率角度出發,在選用變頻器功率時,要注意以下幾點:
A5E38977502變頻器功率值與電動機功率值相當時·合適,以利變頻器在高的效率值下運轉。
A5E38977502在變頻器的功率分級與電動機功率分級不相同時,則變頻器的功率要盡可能接近電動機的功率,但應略大於電動機的功率。
A5E38977502當電動機屬頻繁起動、制動工作或處於重載起動且較頻繁工作時,可選取大一級的變頻器,以利用變頻器長期、·全地運行。
A5E38977502經測試,電動機實際功率確實有富餘,可以考慮選用功率小於電動機功率的變頻器,但要注意瞬時峰值電流是否會造成過電流保護動作。
A5E38977502當變頻器與電動機功率不相同時,則·須相應調整節能程序的設置,以利達到較高的節能效果。
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