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西門(mén)子控制器6ED1055-1FB00-0BA1
西門(mén)子控制器6ED1055-1FB00-0BA1 價(jià)格:52  元(人民幣) 產(chǎn)地:進(jìn)口
最少起訂量:1臺(tái) 發(fā)貨地:廈門(mén)
上架時(shí)間:2023-11-06 14:11:11 瀏覽量:45
廈門(mén)海通華業(yè)科技有限公司  
經(jīng)營(yíng)模式:代理商 公司類(lèi)型:私營(yíng)有限責(zé)任公司
所屬行業(yè):PLC控制系統(tǒng) 主要客戶(hù):電廠,鋼鐵廠,水泥廠,
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聯(lián)系人:易工 (先生) 手機(jī):18065920203
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郵箱:79903836@qq.com 地址:廈門(mén)市海滄區(qū)滄湖東一里502號(hào)2502室

詳細(xì)介紹

變頻器維修中主板燒壞以及爆模塊的大致原因情況: 分析一:馬達(dá)變?yōu)榘l(fā)電機(jī) 當(dāng)馬達(dá)功率較大時(shí),熱繼上端有電控制馬達(dá),馬達(dá)是電動(dòng)機(jī)。當(dāng)變頻器上端無(wú)電,下端與馬達(dá)還連接時(shí);馬達(dá)因慣性運(yùn)轉(zhuǎn)時(shí),馬達(dá)變?yōu)榘l(fā)電機(jī)然后通過(guò)三相連接線(xiàn)對(duì)外輸出一個(gè)空載電壓,從而造成變頻器上端燒。 對(duì)策:停止馬達(dá)時(shí)斷開(kāi)變頻器后的接觸器,如有可能增加馬達(dá)剎車(chē)抱閘機(jī)構(gòu)。 分析二:強(qiáng)電串入 接地沒(méi)接好有腐蝕性氣體,跳閘時(shí)變頻器前斷的斷路器跳閘了,大功率馬達(dá)因慣性產(chǎn)生過(guò)電壓動(dòng)作,因強(qiáng)電電纜與控制電纜沒(méi)有分開(kāi)走,會(huì)對(duì)控制電纜上產(chǎn)生高電壓,燒毀變頻器。 對(duì)策:變頻器前增加隔離繼電器,檢查接地,變頻器的減速時(shí)間。 分析三:電網(wǎng)諧波和瞬時(shí)高壓 供電電網(wǎng)鄰近線(xiàn)路有大功率非線(xiàn)性負(fù)載大型設(shè)備,斬波起停且供電方式上沒(méi)有相應(yīng)防范措施。 對(duì)策:增加防諧波裝置。
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