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10/30吨门座起重机是水电部吉林水工机械厂的产品,有的单位也称之为“丰满门机”。从57年到80年,该厂已生产了约170余台,目前仍继续生产。笔者曾参与该机的设计、制造、试验鉴定和为用户技术服务工作,现根据使用单位反映和本人记录,说明几种常见的电气故障及其处理方法,以供参考。一、电缆绞盘之导电环或刷架的绝缘损坏(俗称放炮)电缆绞盘为该机电源引入而设置的、因引入电源是交流高压(3、6千伏)所以运行条件较为恶劣,在设计上虽采取了一些预防措施,但运行中曾出现放炮故障。其原因是长期运行中导电环(青铜)与电刷(紫铜)相对运动和摩擦,产生铜末积储于导电环或电刷
10/30 tons portal crane is the Ministry of Water Resources Machinery Plant in Jilin products, some units also known as “full door machine.” From 57 to 80 years, the plant has produced about 170 units, is still continuing to produce. I have participated in the design of the aircraft, manufacture, test identification and technical services for users, are based on the use of units to reflect and I record, describes several common electrical faults and their handling methods for reference. First, the cable winch conductive ring or brush holder insulation damage (commonly known as blasting) Cable winch for the introduction of the machine power and set, because the introduction of power is AC high voltage (3,6 kV) so the operating conditions are more harsh, in the design Although some preventive measures have been taken, blasting operation has occurred. The reason is the long-term operation of the conductive ring (bronze) and the brush (copper) relative motion and friction, resulting in the end of copper storage in the conductive ring or brush