描述
6DD1681-0CA2
目前在10KV及以下電壓等級(jí)配電網(wǎng)絡(luò)中,真空斷路器已經(jīng)逐步取代油斷路,在無油化改造過程發(fā)揮了積極作用。與油斷路器相比,真空斷路器具有適合頻繁操作,電氣壽命長(zhǎng),檢修維護(hù)工作量小,防燃、防爆、運(yùn)行可靠性高的優(yōu)點(diǎn),在安裝、調(diào)試、應(yīng)用過程中也應(yīng)注意幾個(gè)問題,使它的優(yōu)越性得到充分發(fā)揮。??? DDC控制器是現(xiàn)場(chǎng)設(shè)備與上位管理機(jī)之間的樞紐,起著舉足輕重的作用,現(xiàn)場(chǎng)設(shè)備的維護(hù)須從控制柜入手,首先要了解控制柜分布及各控制器所控設(shè)備。其分布及控制設(shè)備詳見BAS竣工圖。了解DDC控制柜內(nèi)器件及接線對(duì)維護(hù)至關(guān)重要,
接線端子:用來連接現(xiàn)場(chǎng)設(shè)備與控制器的接線。接線端子接線為去現(xiàn)場(chǎng)設(shè)備接線和去控制器接線。這是檢測(cè)現(xiàn)場(chǎng)設(shè)備信號(hào)的著手處,如果發(fā)現(xiàn)上位機(jī)畫面某信號(hào)顯示不正??稍诖颂帣z測(cè)其信號(hào)是正常。DI點(diǎn)可通過現(xiàn)場(chǎng)設(shè)備的開與關(guān),在此處檢測(cè)過來的是信號(hào)是否為短路與斷路,如開對(duì)應(yīng)短路,關(guān)對(duì)應(yīng)斷路,則信號(hào)正常;DO點(diǎn)可通過上位發(fā)送開關(guān)信號(hào),在此處檢測(cè)發(fā)出的信號(hào)是否為短路與斷路,如開對(duì)應(yīng)短路,關(guān)對(duì)應(yīng)斷路,則信號(hào)正常;AI點(diǎn)在此處可檢測(cè)現(xiàn)場(chǎng)過來的信號(hào)是否為0-10V直流電壓或電阻值為1K歐姆左右(只有溫度信號(hào)是電阻值),若在此范圍內(nèi),均屬正常;AO點(diǎn)可通過上位畫面發(fā)出指令,在此處檢測(cè)是否有0-10V的直流電壓。
產(chǎn)品承諾:
保?證?全新原裝進(jìn)口,
保?證?安全準(zhǔn)時(shí)發(fā)貨,
保?證售后服務(wù)質(zhì)量,
優(yōu)勢(shì)價(jià)格,大量現(xiàn)貨。
主營(yíng)DCS系統(tǒng)配件
機(jī)器人系統(tǒng)配件
大型伺服系統(tǒng)配件
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Reliance 57412
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