低压增安型异步电动机热过载保护的改进  

Improvement of Low Pressure Safety Increased Type Asynchronous Motor Thermal Overload Protection

作　　者：屈莉 

机构地区：[1]中石化洛阳工程有限公司仪电室,河南洛阳471003

出　　处：《科技与创新》2015年第3期105-106,共2页Science and Technology & Innovation

摘　　要：低压增安型三相异步电动机是适用于工厂2区内具有爆炸危险场所的防爆电机,其防爆技术原理是在保证电机正常运行的条件下,不产生电弧、火花,或在可能点燃爆炸性混合物的高温的基础上,进一步采取电磁和机械方面的措施,以提高安全性,避免在正常和认可的过载条件下出现问题。随着增安型异步电动机被广泛采用、数字技术的不断发展和新一代低压电动机智能综合保护器的逐步普及,增安型电动机的热过载保护(TE时间保护)已日趋完善。Low voltage increased safe three-phase asynchronous motor is applicable to explosion-proof motor factory in District 2 with explosive dangerous location, the explosion-proof technology principle is to ensure the normal operation of the motor under the condition, does not produce electric arc, spark, or based on high temperature can ignite an explosive mixture on, take further electromagnetic and mechanical aspects of measures, in order to improve the safety, avoid problems in normal and recognition of the overload condition. With the gradual development of safety increased type asynchronous motor is widely used, digital technology and a new generation of the low voltage intelligent motor protector, thermal overload protection safety increased type motor（TE time protection）has become more perfect.

关 键 词：增安型电动机 热保护 启动电流比 综合保护器 

分 类 号：TM343[电气工程—电机]