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乌江渡发电厂2×300t双小车桥式起重机,限于当时的技术水平,运行至今存在控制技术落后、小车起升同步性差、齿轮啮合面偏磨严重、电气元件老化等问题,虽经多次检修,但整体工作性能仍不理想。3台老机组增容改造后,桥机的起吊重量将增加30t。为了提高桥机运行的可靠性和安全性,2003年对其进行了彻底改造,除对主梁进行复核后未更换和对大车运行机构进行检修外,其余均予以了换型改造。
Wujiangdu Power Plant 2 × 300t double trolley overhead crane, limited to the technical level at that time, so far there is control technology behind the operation, the poor synchronization of the car, the gear meshing surface serious wear and tear, the aging of electrical components and other issues, despite repeated maintenance , But the overall performance is still not satisfactory. After three old units capacity transformation, the lifting weight of the bridge machine will increase 30t. In order to improve the reliability and safety of the operation of the bridge machine, it was completely rebuilt in 2003, except that the main girder was not changed after being checked, and the overhaul of the car operating mechanism was carried out.