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PACIFIC SCIENTIFIC PC832-001-N
PACIFIC SCIENTIFIC PC832-001-N
PACIFIC SCIENTIFIC PC832-001-N
變頻器產(chǎn)品由于具有靈活的調(diào)速功能，在電力節(jié)能領(lǐng)域優(yōu)勢明顯，作為工控系統(tǒng)的重要組成設(shè)備，安裝在電機前端以實現(xiàn)調(diào)速和節(jié)能。高壓變頻器后端主要拖動風(fēng)機、水泵類負載，實際節(jié)電效果達30%~60%，未來該行業(yè)市場發(fā)展將受益于大中型項目改造。低壓變頻器與控制層和執(zhí)行層設(shè)備共同組成自動化控制系統(tǒng)，未來幾年，我國變頻器行業(yè)將會趨向節(jié)能、多元化發(fā)展，其未來發(fā)展將受益于制造業(yè)裝備升級。
變頻技術(shù)先用來對電機進行無級調(diào)速，通過控制半導(dǎo)體器件的通斷改變輸出頻率，以實現(xiàn)對后端拖動交流電機的軟啟動、變頻調(diào)速及提高運轉(zhuǎn)精度，并實現(xiàn)過流、過壓、過載保護。
對比過去的機械調(diào)速方式，變頻調(diào)速的范圍寬，可達到~5%；調(diào)控精度高，可達到±0.5%；由于它是無極調(diào)速，可實現(xiàn)電機的軟啟動和整個生產(chǎn)系統(tǒng)的全自動控制，進而減少對電網(wǎng)的沖擊。
有關(guān)專家對比了電氣設(shè)備中幾種主要節(jié)能產(chǎn)品的效果，其中變頻器效率高達30%~60%，使用時只需加裝在電機前端，對原有設(shè)備改動較小。
因此，在十二五規(guī)劃提出的制造裝備升級和工業(yè)節(jié)能環(huán)保項目中，確立了未來行業(yè)發(fā)展仍將走調(diào)速節(jié)能并舉的路徑。細分到產(chǎn)品，預(yù)計低壓變頻器以自動化改造和進口替代為主線，國內(nèi)企業(yè)將重點發(fā)展控制和驅(qū)動技術(shù)；高壓變頻器依托國家節(jié)能環(huán)保政策，下游仍以電力、冶金、水泥等的大型工業(yè)設(shè)備改造為主，競爭加劇將刺激高性能產(chǎn)品國產(chǎn)化提速。
PACIFIC SCIENTIFIC PC832-001-N
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