本文關(guān)鍵詞： 電動盤車 剩磁 啟動電流 水電站　出處：《人民長江》2017年20期 　論文類型：期刊論文

【摘要】：水輪發(fā)電機(jī)組軸線的測量與調(diào)整是機(jī)組總裝完成后的一道關(guān)鍵性工序,機(jī)組軸線的測量與調(diào)整一般通過電動盤車來完成。工程中常采用經(jīng)驗公式來計算電動盤車時加入定轉(zhuǎn)的電流值,多個電站的實踐證明,運用經(jīng)驗公式計算出的啟動電流與實際加入的電流偏差較多,而采用電磁學(xué)推導(dǎo)公式計算的啟動電流與實際加入的電流值比較接近。詳細(xì)闡述了電動盤車啟動電流的計算過程和實際應(yīng)用效果,同時,對電動盤車因不平衡磁拉力及剩磁現(xiàn)象對盤車帶來的影響,進(jìn)行了專項技術(shù)分析并采取了相應(yīng)的解決措施。研制的對應(yīng)措施在多個水電站得到了運用,經(jīng)過長時間的運行,發(fā)現(xiàn)機(jī)組的振動、擺度均在允許的范圍內(nèi)且運行情況良好。研究中推導(dǎo)的電動盤車計算公式及相關(guān)問題的處理方式,對水電站軸線的調(diào)整有一定的參考和借鑒作用。
[Abstract]:The measurement and adjustment of the axis of a hydrogenerator unit is a key process after the assembly of the unit is completed. The measurement and adjustment of the axis of the unit is usually accomplished by the electric disc car. The empirical formula is often used to calculate the current value of the fixed rotation when calculating the electric wheel, and the practice of many power stations proves that the measurement and adjustment of the axis line of the unit are usually accomplished by the electric disc car. The deviation between the starting current calculated by empirical formula and the actual current added is more. The starting current calculated by using the formula of electromagnetism is close to the current value added in practice. The calculation process and practical application effect of the starting current of electric trolley are described in detail, at the same time, In this paper, the influence of unbalanced magnetic pull force and remanent magnetic force on electric trolley is analyzed and the corresponding solutions are taken. The developed corresponding measures have been applied in many hydropower stations and have been operated for a long time. It is found that the vibration and pendulum of the unit are within the allowable range and the operating conditions are good. The calculation formula of the electric trolley and the treatment methods of the related problems derived in the study have certain reference and reference function for the adjustment of the axis of the hydropower station.
【作者單位】： 中國水利水電第三工程局有限公司制造安裝分局;
【分類號】：TV734
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本文編號：1525575