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廈門市泰尼電器有限公司
主營產(chǎn)品： AB模塊PLC |
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廈門市泰尼電器有限公司
主營產(chǎn)品： AB模塊PLC |
| 參考價 | 面議 |
檢查多支路自動控制電路的故障：在多支路自動控制降壓啟動電路（圖6)，啟動時，定子繞組上串聯(lián)電阻R，限制了啟動電流。在電動機上升到一定數(shù)值時，時間繼電器KT動作，常開觸點閉合，接通KM2電路，啟動電阻R自動短接，電動機正常運行。如果按下啟動按鈕SB1，接觸器不吸合，可將KM1強迫閉合，松開后看KM1是否保持在吸合位置，電動機在強迫閉合瞬間是否啟動。如果KM1隨絕緣棒松開而釋放，但電動機轉(zhuǎn)動了，則故障在停止按鈕SB2熱繼電器FR觸點或KM1本身。如電動機不轉(zhuǎn)，故障在主電路熔斷器、電源無電壓等。如KMI不再釋放，電動機正常運轉(zhuǎn)，故障在啟動按鈕SBl和KM1的自鎖觸點。
廚師薛樂和齊彬：
“*夸咱做的產(chǎn)品！"
泰尼菜譜
★主食：AB，施耐德和GE 發(fā)那科
★四菜一湯：AB 1785、1756、1747、1784，施耐德140系列，發(fā)那科A06B系列，西門子6ES，505系列熱賣！
★餐后水果：泰尼現(xiàn)貨
：張亮
電 話：
手 機：
： 2314094943
1756-HIST2G---1756-HIST2G
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