大型电动机变频软启动容量计算方法

Large Motor Variable Frequency Soft Capacity Calculation Method

介绍了一种大型电动机高压变频软启动装置容量的计算方法,详细分析了计算原理,按照该计算方法在高炉风机大型电动机变频软启动装置项目中进行了容量计算,并按计算容量设计选型了GBRQ系列高压变频软启动装置,满足项目的使用要求,实际启动电流约为电动机额定电流的20%。

Introduced a calculation method of variable frequency soft starting device for large high voltagemotor,analyzed calculation principle in detail,according to the calculation method,calculated the capacity ofvariabled frequency soft start device for the blast furnace blower motor,and designed a GBRQ series high voltagevariable frequency soft start device for the project,the device meet the requirements of the project,the actual startingcurrent is about 20% of the rated current of the motor.