【摘要】 功率因数是各种电气设备十分重要的电气参数之一 ,变频调速输油系统中应用的电机 ,功率一般均比较大 ;因此研究该系统中功率因数的问题具有一定的意义。文章以变频调速输油系统实测数据为基础 ,用数理统计的方法 ,得出了电机功率因数与变频器频率和电机负载率的相关关系更多还原

【Abstract】 The power factor is one of very important parameters in all electric installations.In oil transferring system with frequency variation speed-regulation,motor power is large generally,therefore it is important to study motor power.On basis of data measured from oil transferring system,put forward is the relation between motor power factor,frequency and load coefficient by statistical method.The conclusion obtained is useful for productive practice.更多还原