CQM1PA206
CQM1PA206
A16B-1211-0081 /03B
①通電后不能合閘或不能完全合閘,原因是線圈電壓等級(jí)不對(duì)或電壓不足,運(yùn)動(dòng)部件卡位,觸頭超程過大及觸頭彈簧和釋放彈簧反力過大等;
?、谖线^程過于緩慢,其原因在于動(dòng)、靜鐵心氣隙過大,反作用過大,線圈電壓不足等;
?、墼肼曔^大或發(fā)生振動(dòng),其原因是分磁環(huán)斷裂,線圈電壓不足,鐵心板面有污垢和銹斑等;
?、芫€圈損壞或燒毀,原因在于線圈內(nèi)部斷線或匝間短路、線圈在過壓或欠壓運(yùn)行等;
?、菥€圈斷電后鐵心不釋放,其原因有剩磁太大,反作用力太小,板面有粘性油脂,運(yùn)動(dòng)部件卡位等;
?、抻|頭溫升過高及發(fā)生熔焊,其原因是負(fù)載電流過大,超程太小,觸頭壓力過小及分?jǐn)嗄芰Σ蛔?,觸頭接觸面有金屬顆粒凸起或異物,閉合過程中振動(dòng)過于激烈或發(fā)生多次振動(dòng)等。
八:接觸器是重要的低壓電器元件,其壽命的長(zhǎng)短是質(zhì)量評(píng)價(jià)和主要指標(biāo)之一,故采取一些措施提高壽命很重要?! ∥μ匦耘c反力特性的合理配合可以提高接觸器的壽命。
九:接觸器的動(dòng)作電壓為85%~110%Un?! ∮|頭閉合和鐵心吸合時(shí)使觸頭產(chǎn)生的一次和二次跳動(dòng),可能導(dǎo)致觸頭熔焊及增大其電侵蝕。為了減小觸頭跳動(dòng)時(shí)間,應(yīng)適當(dāng)減小觸頭的質(zhì)量和運(yùn)動(dòng)速度,并適當(dāng)增大觸頭初接觸力。為了減小和防止觸頭的第二次彈跳(此時(shí)因起動(dòng)電流大,危害性更嚴(yán)重),除借吸力特性與反力特性的良好配合以減小碰撞能量外,還需給電磁系統(tǒng)加裝緩沖裝置以吸收銜鐵等的動(dòng)能。十,后選用接觸器的時(shí)候,要注意接觸器的使用環(huán)境,不要在太潮濕的地方使用,容易使接觸器觸頭氧化。
Fu Zhou ZhuoKai Electric Co., Ltd.
福州卓凱電子科技有限公司
【誠(chéng)信】 【質(zhì)量保證】 【價(jià)格優(yōu)惠】
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我公司大量現(xiàn)貨歐姆龍,倍加福,橫河川儀,abb,施耐德等國(guó)外多家品牌,產(chǎn)品涉及變頻器,儀器儀表,變送器,可編程控制器plc和人機(jī)界面,工控機(jī)及氣動(dòng)閥門等。
聯(lián)系人【王工】
電話【059162182535】【15506917382】
e-mail:【583745937@qq.com】
QQ:【583745937】
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