點(diǎn)擊圖片查看大圖Foxboro P0400HJ
Foxboro P0400HJ
0-58706-2
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;
②吸合過程過于緩慢，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;
③噪聲過大或發(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;
④線圈損壞或燒毀，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;
⑤線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;
⑥觸頭溫升過高及發(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蛔悖|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。 吸力特性與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。 觸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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