抽油机电动机输入功率的测试与计算  

How to Determine the Power Input of the Motor on Pumping Units,

作　　者：王玉山[1] 

机构地区：[1]大庆石油管理局采油六厂

出　　处：《石油机械》1991年第10期53-55,58,共4页China Petroleum Machinery

摘　　要：论述现场以电流表、电压表和功率因数表测出拖动抽油机的电动U、I和cosφ瞬时值做为计算电功率依据的不正确性。给出了存在有负功时电动机的输入功率的计算公式,并推荐用三相有功电度表或抽油机工况测试仪作抽油机电动机能耗计算的测量仪表。The author points out that, when the power input of the electric motor on a pumping unit is determined by the instantaneous readings of U, I and cosφ on volt - , current - and power - factor meter respectively, there exist certain inevitable errors, presents a formula for calculating the power input of this kind of motor which will do negative work now and then, and suggests to determine the power consumption of the motor on pumping units with the help of a 3-phase watt-hour meter or a pumping - unit working condition tester.

关 键 词：抽油机 电动机 输入功率 测量 

分 类 号：TE933.103[石油与天然气工程—石油机械设备]