TC-IOLI01 TC-IOLI01 TC-IOLI01 TC-IOLI01 TC-IOLI01 TC-IOLI01 TC-IOLI01
斷路器一般由觸頭系統(tǒng)、滅弧系統(tǒng)、操作機構(gòu)、脫扣器、外殼等構(gòu)成。
當短路時，大電流（一般10至12倍）產(chǎn)生的磁場克服反力彈簧， 脫扣器拉動操作機構(gòu)動作，開關(guān)瞬時跳閘。當過載時，電流變大，發(fā)熱量加劇，雙金屬片變形到一定程度推動機構(gòu)動作（電流越大，動作時間越短）。
現(xiàn)在有電子型的，使用互感器采集各相電流大小，與設定值比較，當電流異常時微處理器發(fā)出信號，使電子脫扣器帶動操作機構(gòu)動作。
斷路器的作用是切斷和接通負荷電路，以及切斷故障電路，防止事故擴大，保證安全運行。而高壓斷路器要開斷1500V，電流為1500-2000A的電弧，這些電弧可拉長至2m仍然繼續(xù)燃燒不熄滅。故滅弧是高壓斷路器必須解決的問題。
吹弧熄弧的原理主要是冷卻電弧減弱熱游離，另一方面通過吹弧拉長電弧加強帶電粒子的復合和擴散，同時把弧隙中的帶電粒子吹散，迅速恢復介質(zhì)的絕緣強度。
低壓斷路器也稱為自動空氣開關(guān)，可用來接通和分斷負載電路，也可用來控制不頻繁起動的電動機。它功能相當于閘刀開關(guān)、過電流繼電器、失壓繼電器、熱繼電器及漏電保護器等電器部分或全部的功能總和，是低壓配電網(wǎng)中一種重要的保護電器。
低壓斷路器具有多種保護功能（過載、短路、欠電壓保護等）、動作值可調(diào)、 分斷能力高、操作方便、安全等優(yōu)點，所以目前被廣泛應用。結(jié)構(gòu)和工作原理低壓斷路器由操作機構(gòu)、觸點、保護裝置（各種脫扣器）、滅弧系統(tǒng)等組成。
低壓斷路器的主觸點是靠手動操作或電動合閘的。主觸點閉合后，自由脫扣機構(gòu)將主觸點鎖在合閘位置上。過電流脫扣器的線圈和熱脫扣器的熱元件與主電路串聯(lián)，欠電壓脫扣器的線圈和電源并聯(lián)。當電路發(fā)生短路或嚴重過載時，過電流脫扣器的銜鐵吸合，使自由脫扣機構(gòu)動作，主觸點斷開主電路。當電路過載時，熱脫扣器的熱元件發(fā)熱使雙金屬片上彎曲，推動自由脫扣機構(gòu)動作。當電路欠電壓時，欠電壓脫扣器的銜鐵釋放。也使自由脫扣機構(gòu)動作。分勵脫扣器則作為遠距離控制用，在正常工作時，其線圈是斷電的，在需要距離控制時，按下起動按鈕，使線圈通電，銜鐵帶動自由脫扣機構(gòu)動作，使主觸點斷開。
本公司專業(yè)銷售大型進口各種品牌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、 內(nèi)存卡、 電源，機器人備件等)各類工控產(chǎn)品
主要業(yè)務: 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)自動化設備有限公司
聯(lián)系人：徐先生
手機：18050109369
電話：0592-7796662
傳真：0592-6535181
QQ:3250341298
E-mail:3250341298@qq.com
福建宇創(chuàng)自動化設備有限公司技術(shù)力量雄厚，設備齊全，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，堅持嚴謹?shù)慕回浧谙蓿侠淼膬r格標準，優(yōu)良的產(chǎn)品質(zhì)量，
妥善的售后服務，長期與廣大新老用戶進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，
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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***USA SELLER - FREE 1-3 DAY DELIVERY - WARRANTY***
