HD12.5捷克龙门刨床是我厂重大设备,使用了几年之后,突然故障频繁,故障主要表现在电机换向不灵,火花特别严重,转速达不到要求,经常有匝间短路,绝缘电阻低甚至接地等现象。过去曾经送外厂修理过几次,但使用不到两个月又出现上述故障,最后被迫停机。 后来仔细检查工作现场,发现冷 HD12.5 Czech planer machine is a major plant of our plant, the use of a few years later, sudden failure frequently, the failure is mainly manifested in the motor commutation is not working, the sparks are particularly serious, the speed can not meet the requirements, often inter-turn short circuit, insulation resistance Low or even ground and so on. In the past, it was sent to the external factory for repairs several times, but the above failure occurred again in less than two months and was finally shut down. Later carefully check the job site and found cold