The influence of frequency deviate or harmonics to the traditional kilowatthourmeter of electromagnetic induction type is analysed in the paper.
分析了电力系统频率偏移和谐波对传统感应电能表误差特性的影响。
2
The payment in advance pattern using IC card is more convenient than manual kilowatthourmeter reading, but it is not suited to real time pricing mode.
IC卡预付费方式与人工抄表方式相比有较大改进，但不适合于实时电价模式。
3
I started with a KillAWatt P4400 power meter and the U.S. Department of Energy average of 11 cents per kilowatthour of electricity. After that, I estimated my own household's average device usage.
我以一只KillWatt P 4400型电表和美国能源部每千瓦平均11美分的价格开始，之后，我评估了我家的使用的所有小设计的平均使用量。