Application on revolution protection of moter in crusher of preparation plant 电动机堵转保护在选煤厂破碎机上的应用
Robust design for the locked torque of permanent magnetism dc micro - motor based on response surface method 基于响应面模型的永磁直流微电机堵转力矩稳健设计
Stalling a stepping motor will not hurt it . a stepping motor doesn ' t draw any increased current while being in a stalled position 步进电机堵转是不会烧坏的,因为步进电机在堵转时是不会引起电流增加的。
The protection system can deal with the following motor faults : heavy over - current , over / under - voltage , over - current , current unbalance protection , repeated startings , earth fault and so on 在此基础上实现了针对过载、堵转、短路、断相、逆相、相不平衡等故障的保护。
Ylj series ac torque motor fit for driving the winding , paying out , locked - rotor and speed - varying units for applications in plastic , textile , printing , rubber and metal material processing Ylj系列交流力矩电动机适用于塑料、纺织、印刷、橡胶以及金属材料加工等部门作为卷绕、放线、堵转和调速等设备的动力。
Compressor internal protectors include internal motor protector and pressure relief valve , which can effectively prevent the damage to compressor , caused by leakage of refrigerant and blocked fan condition 压缩机保护装置采用进口内置式保护器和安全阀,可有效防止由于冷媒泄露风扇,堵转等引起的对压缩机的损坏。
This system is designed to measure motor ’ s three important parameters including stator coil inductance , stalling torque and back emf . all of these test results are used as basis for product detect 设计这套测试系统用来检测电机定子绕组电感、堵转扭矩及反电动势等三个重要电机参数,把其结果作为检验产品质量的依据。
The experiments show that ultrasonic motors can operate under vacuum condition , but the performance is different from that under general condition , its unloaded speed decreases significantly , while the stall - torque increases a bit 试验结果表明,超声电机可以在真空环境下工作,但性能较常态环境下有所变化,其空载转速明显下降,堵转力矩有所增大。
In the past 10 years , we inherit the tradition of ningbo businessman of “ to conduct ourselves honorably in commercial transaction and business activities ” , insist on the tenet of “ customer first , quality first ” , and have developed 4 series and 40 types of products , which all can provide protection on occasion of power phase lack , motor over load , motor stall , well pump leaking 十年来,本厂继承了宁波人素有的“文明经商、诚信经营”的优良传统,始终抱定“用户至上、质量第一”的经营宗旨,先后研制了4个系列、 40余种规格的产品,都能对电机在因电源缺相、电机超载、电机堵转、潜水泵电机漏水等故障情况下,实施快速可靠的保护。
The first chapter quotes three methods for determining the steady - state equivalent circuit parameters of an induction machine . they are the classical locked - rotor and no - load tests , the direct modification method and the recursive least - squares method . then a new parameter estimation method based on genetic algorithms is presented 绪论首先引述了确定感应电动机稳态模型参数的其他三种方法:传统的空载和堵转试验方法、直接修正参数法和递推最小二乘法,并由此提出基于遗传算法的参数识别技术。