Multi-user fully digital kWh meter are also called cluster watt-hour meters. Residents or apartments in my country are mostly buildings. A building generally contains several units, and each unit is generally close to ten households or more than a dozen households, and many dozens of households. In view of the above situation, in order to facilitate meter reading and power management, some property management departments install multiple single meters in the stairwell. Such a simple combination makes it bulky, unsightly and uneconomical. It is necessary to design a centralized multi-user all-electronic watt-hour meter with small size, complete functions and economy. This kind of centralized watch can be used in one unit or even a building, but it is not a simple combination of multiple single watches.
How to judge when the smart meter is working normally?
If you are using an induction watt-hour meter, observe from the front of the watt-hour meter that the aluminum turntable inside the meter should rotate when you are using electricity, and should not rotate when you are not using electricity. If you are using an electronic energy meter, please observe the indicator light on the nameplate inside the meter from the front of the meter. The indicator light of kilo watt-hour meter should be on and off flashing when you are using electricity, and should always be on or off when you are not using electricity.