How to Choose Electricity Meter for Rental?

Electric energy meters are divided into single-phase electric energy meters and three-phase electric energy meters. Single-phase electric energy meters are generally suitable for residential electricity consumption, such as rental houses, self-contained houses, and properties.

Three-phase electric energy meters are generally used in shops, factories, power stations, power plants, etc.

The standard of the electric energy meter requires that the starting current of the 1-level meter is 0.4%Ib of the basic current, so it is used to choose the appropriate measurement specification. For example, the starting current of 1.5(6)A and 20(80)A The difference is very large. The former is 6mA and the latter is 80mA. Start-up current refers to the lower limit of the start-up current of the electric energy meter. If it is less than the start-up current, the electric energy meter will not be able to measure normally or not. Then this part of the power will become a loss and can only be displayed on the total meter.

So how to choose the current and voltage specifications of the single-phase electric energy meter suitable for rental houses?

The general voltage specification of a single-phase electric energy meter is 220V, and the choice of the current specification mainly depends on the user's load. Generally, the upper limit of the load current cannot exceed the rated current of the electric energy meter, and the lower limit is not lower than the load current specified within the allowable error range of the electric energy meter. For example: the user's power consumption is about 10KW, the voltage is 220V, and the current is 10000/220=46A. That is to say, divide the electric power by 220, and the current value is about 46A. Considering that a certain margin needs to be reserved, a current specification of 5 (60) A can be selected.