论文部分内容阅读
探矿工作中，钻机、水泵、通风机等都离不开电动机。这些设备搬迁频繁，工作环境恶劣，其电动机没有自动保护设备，常常由于超载、断相等故障而烧坏，不但造成经济上的损失，而且严重地影响了生产。为此，中国地质大学（武汉）自动化研究室于1989年研制成功了一种WT-13型电动机自动保护器，投入实际应用已两年，取得了良好的效果。一、基本工作原理（见附图）
Prospecting work, rigs, pumps, fans and so are inseparable from the motor. Frequent relocation of these devices, poor working conditions, the motor does not automatically protect the equipment, often due to overload, broken down and other failures, not only cause economic losses, but also seriously affected the production. To this end, China University of Geosciences (Wuhan) Automation Laboratory in 1989 successfully developed a WT-13 motor automatic protector, put into practical use for two years and achieved good results. First, the basic working principle (see photo)