Multi-function electronic watt-hour meter has been widely applied in the electric power department and the growing demand for power measurement and management also promote the development of watt-hour meter technology .

电子 式多功能 电 能表 如今已被广泛应用于电力部门，电力计量与管理部门不断发展的 需求也一直在促进电能 表技术的不断发展。