Abstract: This paper studies how the power line loss in a distribution network will increase, if the load changes. A concekt "every hour's equivalant coefficient", is suggested, the range of its values is analysed and some calculation equations are derived. This factor is important for controlling the power line loss in an oil field operated with a large number of walking beam pumping units.

摘要： 对矿场电网每小时内负荷变化使配电网线损增加的倍数进行了研究,提出“每时等效系数的概念,并分析其值的范围,推导出有关计算公式.并找出了影响油田配电网线损的主要因素

关键词: 配电网, 电能损耗, 电动抽油机, 电流变化, 每小时等效系数