兖州矿业(集团)公司兴隆庄煤矿利用电流数值进行检测和保护提升机的运行。箕斗因种种原因没有卸空,存留的煤会平衡重箕斗的一部分提升负荷,提升机自动运行后,电枢电流就会相应减少,造成下一次箕斗过载甚至重装事故的发生。他们利用提升机数字控制与检测的特点在系统中增设以下保护 Yanzhou Mining (Group) Co., Ltd. Xinglongzhuang Coal Mine current value of the use of testing and protection of the elevator operation. Because of various reasons, the skip has not been emptied. The remaining coal balances the part of the heavy skip to increase the load. After the elevator runs automatically, the armature current will be reduced correspondingly, resulting in the next skip overloading or even reinstallment accident. They use the elevator digital control and detection features in the system to create the following protection