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发明授权
CN106208560B 一种大型同步电机转子在线修复方法 有权

一种大型同步电机转子在线修复方法
摘要：
本发明公开了一种大型同步电机转子在线修复方法，包括如下步骤：1）：初次吹扫，用压缩空气对转子吹扫；2）：初次清洗，将吹扫过后的转子清洗；3）：标记，将清洗后转子上的电阻笼条逐一检查并做上标记；4）：切割，将做有标记的电阻笼条切割后取出；5）：焊接修复，将可修复电阻笼条焊接面技术处理焊接修复；6）：焊接点修磨，将焊接修复后的焊接面打磨；7）：再次吹扫，将焊接点修磨后的转子用压缩空气吹扫；8）：再次清洗，将再次吹扫后的转子清洗；8）：晾干，将再次清洗后的转子自然晾干4小时以上；9）：槽口灌胶加固，将密封胶打入转子槽口内；10）：检测，在冷态下用摇表测其定、转子绕组绝缘电阻及各相线圈直流电阻。
摘要（英）：

The invention discloses an online repair method of a large synchronous motor rotor. The online repair method comprises the following steps: 1) primary blowing, using compressed air to blow a rotor; 2) primary cleaning, cleaning the rotor after blowing; 3) marking, examining resistance cage bars on the rotor after cleaning one by one and marking; 4) cutting, taking out the resistance cage bars with marks after cutting; 5) welding repair, using a welding surface technology of the repairable resistance cage bars to carry out welding repair; 6) welding point polishing, polishing welding surfaces after welding repair; 7) secondary blowing, using compressed air to blow the rotor after welding point polishing; 8) secondary cleaning, cleaning the rotor after secondary blowing; 8) airing, naturally airing the rotor after secondary cleaning for more than 4 hours; 9) notch glue filling reinforcement, pumping a sealant into a rotor notch; and 10) detecting, using a megger to measure the insulation resistance of stator and rotor windings and direct-current resistance of each phase coil under a cold state.

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