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產(chǎn)品簡介
1746-R11 1746-R11
1746-R11 1746-R11
產(chǎn)品價格:¥888
上架日期:2015-11-23 09:41:21
產(chǎn)地:美國
發(fā)貨地:廈門
供應(yīng)數(shù)量:不限
最少起訂:1個
瀏覽量:25
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    1746-R11產(chǎn)品介紹:

    1746-R11

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    廈門卡庫電氣主營:

    《施耐德》(schneider),《莫迪康》(modicon),《AB》,《ABB》,《西門子》,《三菱》,《歐姆龍》,《GE》等多種品牌..........

    PLC軟件設(shè)計   控制程序采用模塊化、結(jié)構(gòu)化設(shè)計,層次分明,結(jié)構(gòu)清楚。程序流程圖如圖2。檢測模塊隨時采集用電系統(tǒng)的相角信息,然后和給定參數(shù)進行比較,如果不滿足要求,及時投入或切除補償電容器,保證用電系統(tǒng)的功率因數(shù)滿足設(shè)定要求。

    4 PLC無功自動補償控制系統(tǒng)的優(yōu)點 4.1可靠性高。   采用分立元件組裝的控制系統(tǒng),每個部分都由幾十個元件成,整個控制器有數(shù)百個元器件,任何一個元器件出現(xiàn)問題都會造成整個控制器故障而不能正常工作。而采用PLC進行控制,使線路大大簡化,從根本上減少了故障的機遇。另外還采用了模塊式結(jié)構(gòu),使得該系統(tǒng)的可靠性大大提高。   4.2抗干擾能力強   由分立元件組成的控制系統(tǒng),其中采用了大量的二極管、三極管、電容等元件,對電路的工作環(huán)境和溫度有一定的要求而PLC是專為工業(yè)控制設(shè)計的,在設(shè)計和制造過程中采取了多種抗干擾措施,可在惡劣的工業(yè)環(huán)境下與強電設(shè)備一起工作,抗干擾能力強,運行穩(wěn)定性高。   4.3便于安裝,維護方便   與分立元件控制系統(tǒng)比較,PLC控制系統(tǒng)體積小、重量輕,便于安裝。該系統(tǒng)具有自檢和監(jiān)護功能,而且能動態(tài)地監(jiān)視控制程序的執(zhí)行情況,為現(xiàn)場的調(diào)試和維護提供了方便,由于接線少,所以維護方便,修復(fù)時間短。

    實際運行結(jié)果證明,以上控制系統(tǒng)完全滿足技術(shù)指標(biāo)要求。采用PLC進行無功自動補償控制,整個系統(tǒng)結(jié)構(gòu)簡單,運行穩(wěn)定,可靠性高。無論從經(jīng)濟的角度考慮,還是從技術(shù)方面分析,都不失為最佳的選擇。   本文作者創(chuàng)新點:采用PLC進行無功自動補償,提高了無功補償系統(tǒng)的可靠性和系統(tǒng)的無功優(yōu)化,組態(tài)靈活,易于擴展;對無功補償系統(tǒng)老設(shè)備的改造有著較高的參考價值和非常廣闊的前景。



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