大型高压电动机热变电阻软起动装置  

Soft Starter of Thermal Resistor of Large High-Voltage Motor

作　　者：余龙海 

机构地区：[1]襄樊大力工业控制有限责任公司,湖北襄樊441003

出　　处：《冶金动力》2003年第3期9-11,15,共4页Metallurgical Power

摘　　要：介绍了高压热变电阻软起动装置的工作原理、起动特性及应用。该产品主要用于大型电动机的降压软起动,与自耦变压器相比,它具有起动电流小且恒定、母线压降低、功率因数高等优点;与高压变频软起动器相比,它具有性价比高、无高次谐波等优点。该产品已在13500kW高压同步电动机的降压软起动上得到成功应用。The working principle, start characteristic and application of the soft starter of high voltage thermal resistor are presented. This product is mainly used in dropping soft start of the large motor. Compared with autoformer, the product has better characteristics such as less and constant start current, low voltage drop of bus bar and high power factor during start of motor. Compared with soft starter of high voltage, it has high cost to performance ratio and doesn′t produce any high order harmonic. This product has been successfully used in voltage dropping soft start of 135,000 kW high voltage synchronous motor.

关 键 词：大型电动机 高压热变电阻 软起动 工作原理 起动特性 节能 

分 类 号：TM32[电气工程—电机]