上海持承隨時(shí)歡迎您的來(lái)電查詢(xún)，如需選型請(qǐng)及時(shí)來(lái)電，希望合作愉快！
熱線電話: 13671505320/021-31170096/021- 60493942/021-60493941
13671532500/13671506869/021-61992361/021-61728842（如固話打不通請(qǐng)撥手機(jī)，謝謝）
傳真：021-54222086/51591141
聯(lián)系人:金玲 QQ：2548721299
誠(chéng)信，誠(chéng)心。
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變頻器（Variable-frequency Drive，VFD）是應(yīng)用變頻技術(shù)與微電子技術(shù)，通過(guò)改變電機(jī)工作電源頻率方式來(lái)控制交流電動(dòng)機(jī)的電力控制設(shè)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(dòng)單元、驅(qū)動(dòng)單元、檢測(cè)單元微處理單元等組成。通過(guò)改變電源的頻率來(lái)達(dá)到改變電源電壓的目的，根據(jù)電機(jī)的實(shí)際需要來(lái)提供其所需要的電源電壓，進(jìn)而達(dá)到節(jié)能、調(diào)速的目的，
另外，變頻器還有很多的保護(hù)功能，如過(guò)流、過(guò)壓、過(guò)載保護(hù)等等。隨著工業(yè)自動(dòng)化程度的不斷提高，變頻器也得到了非常廣泛的應(yīng)用。
上海持承自動(dòng)化設(shè)備有限公司 聯(lián)系方式小金：13671505320
