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TC-IOLI01 TC-IOLI01 TC-IOLI01 TC-IOLI01 TC-IOLI01 TC-IOLI01 TC-IOLI01

一、電壓速斷保護(hù) 
線路發(fā)生短路故障時，母線電壓急劇下降，在電壓下降到電壓保護(hù)整定值時，低電壓繼電器動作，跳開斷路器，瞬時切除故障。這就是電壓速斷保護(hù)。 
二、電流速斷保護(hù) 
電流速斷保護(hù)分為無時限電流速斷和帶時限電流速斷，當(dāng)線路出現(xiàn)故障時，無時限速斷保護(hù)能瞬時動作，但它只能線路的一部分，帶時限電流速斷保護(hù)能保護(hù)全線路另外帶時限速斷保護(hù)比下一級線路無時限保護(hù)大了一個時限差，因此下一段線路首端發(fā)生短路時，保護(hù)不會誤動。 
三、變壓器差動速斷保護(hù) 
差動保護(hù)是變壓器的主保護(hù)，是按循環(huán)電流原理裝設(shè)的。 
主要用來保護(hù)雙繞組或三繞組變壓器繞組內(nèi)部及其引出線上發(fā)生的各種相間短路故障，同時也可以用來保護(hù)變壓器單相匝間短路故障。 
差動速斷保護(hù) ，為了防止在較高短路電流水平時,由于電流互感器飽和時產(chǎn)生的高次諧波量增加,產(chǎn)生極大的制動力矩而使差動保護(hù)拒動;當(dāng)短路電流達(dá)到4-10倍額定電流時,速斷元件快速出口 
差動保護(hù)的性能非常好，可以瞬時切除全線范圍的故障，一般只用于元件保護(hù)，如變壓器和發(fā)電機(jī)等。其原理是比較元件兩側(cè)的電流大小和方向。 
電流速斷保護(hù)反映相間短路故障，在10~35KV配電線路和小容量變壓器上應(yīng)用廣泛。其動作電流按短路電流整定，數(shù)值大，只有線路始端故障時的短路電流才會大于其動作電流，即速斷保護(hù)才會動作，所以其保護(hù)范圍只限于線路前一部分。 
限時速斷的功能: 
MGK31C重合器控制器是專為中壓35kV及以下ZW□永磁開關(guān)設(shè)計(jì)的戶外型控制器。能方便的配合柱上永磁開關(guān)實(shí)現(xiàn)分、合閘管理...線路保護(hù)功能 ¨ 過流Ⅰ段:速斷保護(hù)功能 ¨ 過流Ⅱ段:限時速斷保護(hù) ¨ 過流Ⅲ段:定時限過流保護(hù) ¨ 自動重合 
過電流保護(hù)功能： 
過繼電器電流保護(hù)器具有過載,堵轉(zhuǎn),過壓,欠壓,斷相,電流不平衡的保護(hù)功能,過電流保護(hù)器能對任何類型三相電動機(jī)起快速,可靠的保護(hù).過電流保護(hù)器具有結(jié)構(gòu)簡單,使用方便,價格低廉,而且無功耗,壽命長,體積小的特點(diǎn).

本公司專業(yè)銷售大型進(jìn)口各種品牌DCS系統(tǒng)模塊備件：

主營產(chǎn)品：DCS集散式控制系統(tǒng)、PLC可編程控制器、數(shù)控系統(tǒng)、
(CPU處理器、模塊、卡件、控制器、伺服驅(qū)動、工作站、驅(qū)動器、
馬達(dá)、 內(nèi)存卡、 電源，機(jī)器人備件等)各類工控產(chǎn)品

主要業(yè)務(wù): ABB DCS卡件
AB 1756，1747，1785系列 PLC CPU，
Siemens 6DD，6FX，6SC，6FC，6S5系列，
Foxboro系統(tǒng)卡件，
Triconex系統(tǒng)模塊，
Rexroth力士樂全系列產(chǎn)品，
Modicon停產(chǎn)模塊 等各類工控產(chǎn)品
Schneider（施耐德） 140系列PLC,CPU
Ovation 系統(tǒng)模塊

公司名稱：福建宇創(chuàng)自動化設(shè)備有限公司

聯(lián)系人：徐先生

手機(jī)：18050109369
               
電話：0592-7796662

傳真：0592-6535181

QQ:3250341298

E-mail:3250341298@qq.com

福建宇創(chuàng)自動化設(shè)備有限公司技術(shù)力量雄厚，設(shè)備齊全，檢測手段完善，質(zhì)量可靠，性能優(yōu)越。
由于我司遵循一切為用戶著想為宗旨，堅(jiān)持嚴(yán)謹(jǐn)?shù)慕回浧谙?，合理的價格標(biāo)準(zhǔn)，優(yōu)良的產(chǎn)品質(zhì)量，
妥善的售后服務(wù)，長期與廣大新老用戶進(jìn)行真誠而有效的合作，體現(xiàn)出可靠的性能和與眾不同的優(yōu)點(diǎn)，
受到廣大用戶信賴和歡迎。

絕對最低價出貨 歡迎來電咨詢！
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