AB模塊1756-DNB B
待電機(jī)達(dá)到額定轉(zhuǎn)速時(shí),啟動(dòng)過程結(jié)束,軟啟動(dòng)器自動(dòng)用旁路接觸器取代已完成任務(wù)的晶閘管,為電動(dòng)機(jī)正常運(yùn)轉(zhuǎn)提供額 定電壓,以降低晶閘管的熱損耗,延長軟啟動(dòng)器的使用壽命,提高其工作效率,又使電網(wǎng)避免了諧波污染。軟啟動(dòng)器同時(shí)還提供軟停車功能,軟停車與軟啟動(dòng)過程相反,電壓逐漸降低,轉(zhuǎn)速逐漸下降到零,避免自由停車引起的轉(zhuǎn)矩沖擊。
AB模塊1756-DNB B
軟啟動(dòng)器在起動(dòng)電機(jī)時(shí),通過逐漸增大晶閘管導(dǎo)通角,使電機(jī)起動(dòng)電流從零線性上升至設(shè)定值。對(duì)電機(jī)無沖擊,提高了供電可靠性,平穩(wěn)起動(dòng),減少對(duì)負(fù)載機(jī)械的沖擊轉(zhuǎn)矩,延長機(jī)器使用壽命。有軟停車功能即平滑減速,逐漸停機(jī),它可以克服瞬間斷電停機(jī)的弊病,減輕對(duì)重載機(jī)械的沖擊,避免高程供水系統(tǒng)的水錘效應(yīng),減少設(shè)備損壞
AB模塊1756-DNB B
1756-DNB B
1756-DNB C
1756-DNB D
1756-DNB B
1756-DNB C
1756-DNB D
1756-DNB/C
1756-DNB/E
1756-EN2T
1756-EN2T C
1756-EN2T/C
1756-EN2TR
1756-ENB A
1756--ENBT
1756-ENBT
1756-ENBT A
1756-ENBT A
1756--ENBT/A
1756-HSC/A
1756-IA16I/A
1756-IB16
1756-IB16 A
1756-IB16/A
1756-IB161F
1756-IB16I
1756-IB16I
1756-IB32
1756--IB32
1756-IB32 A
1756-IB32 B
1756-IB32 / B
1756-IB32 /B
1756-IB32/A
1756-IB32/B
1756-IC16
1756-IF16
1756-IF16 A
1756-IF16/H
1756-IF6I
1756-IF8
1756-IF8/ A
1756-IF8/A
1756-IR6I
1756-IV32/A
1756-L32BBB
1756-L55/A
1756-L55M13
1756-L55M23
1756-L61
1756-L61 A
1756-L61 A
1756-L61/A
1756-L61/B
1756-L61A
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