AS-P120-000
AS-P120-000AS-P120-000
以上就是可控硅的基本工作原理,理解了軟啟動(dòng)的工作原理,我們就開(kāi)始講解本次報(bào)修的ABB軟啟動(dòng)器。本軟啟動(dòng)器是被人修過(guò)再送到兆富科技進(jìn)行維修的,聽(tīng)客戶講初始故障是軟啟動(dòng)器啟動(dòng)時(shí)電機(jī)抖動(dòng),設(shè)備無(wú)法正常啟動(dòng),在送給一家維修公司維修后,非但原來(lái)的故障沒(méi)有修復(fù),軟啟動(dòng)直接上電無(wú)顯示了。客戶于是將這臺(tái)160KW的軟啟動(dòng)器送到兆富科技進(jìn)行維修。
【公 司】: 廈門泰尼電氣有限公司
【主 營(yíng)】: AB、GE、施耐德等各類PLC產(chǎn)品
【價(jià) 格】: 電議
【發(fā)布人】: 張亮
【電 話】: 18030028083
【所在地】: 福建 - 廈門
【座 機(jī)】: 0592-6809819
【來(lái) 源】: 供應(yīng)信息 > 電工、電氣 > PLC
【Q Q】: 2314094943
由于軟啟動(dòng)器原理簡(jiǎn)單,并不像變頻器那樣復(fù)雜,所以檢測(cè)時(shí)也比較快,工程師首先檢查電源部分,發(fā)現(xiàn)上一件公司可能是非專業(yè)公司,電源部分損壞的故障都沒(méi)有修復(fù),但是對(duì)于兆富科技的工程師來(lái)講就很簡(jiǎn)單了,修復(fù)開(kāi)關(guān)電源在進(jìn)行測(cè)試,果然如同客戶描述的那樣啟動(dòng)時(shí)電機(jī)抖動(dòng),顯然是由于觸發(fā)信號(hào)導(dǎo)致輸出電壓不平衡導(dǎo)致。工程師使用示波器對(duì)觸發(fā)信號(hào)進(jìn)行跟蹤,結(jié)果就發(fā)現(xiàn)了問(wèn)題所在,由于觸發(fā)電路故障導(dǎo)致一路可控硅不觸發(fā),從而導(dǎo)致輸出缺相,修復(fù)后帶電機(jī)重新測(cè)試,軟啟動(dòng)器運(yùn)行正常,故障修復(fù)。
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