The electricity meter is an indispensable device that should be used in every residential building. With its help, an electrical energy is recorded, a consumed example of life, see an example on the site . It allows you to control its costs for a specific time period, as well as save on this.
Potential buyers who want to acquire such a device are faced with some problems. The fact is that now a large number of meters that differ in design, work features, cost, etc. are presented on sale. Consider the main varieties.
Classification
The following types of meters are distinguished depending on the principle of functioning:
Electronic.
Induction.
The first models work on the basis of numerous chips and semiconductor technique. There are no spinning mechanical parts in their design. Among the advantages of such a technique, high accuracy of indications can be noted.
As for induction devices, they function according to the principle of steering of a metal disk. The accounting of electric energy is carried out according to the number of revolutions made. The only argument in favor of acquiring such a meter is its low cost. Thus, it is considered accessible to almost every buyer.
The following types are distinguished depending on the number of phases:
Single -phase.
Three -phase.
Single -phase devices are used for single -phase networks, three -phase – for three -phase networks. However, now three -phase counters suitable for operation in single -phase networks are increasingly on sale.
Given the tariffs, there are the following types of counters:
Similariferous.
Two tariffs.
Multi -tariff.
The use of two -tariff models provides the opportunity to pay for electric energy at a day and night tariff. The difference is in the cost of electric energy (the difference is almost twice).
The daily tariff has been valid from seven in the morning until eleven in the morning. The rest of the time the night tariff is working. Thus, two -tariff models are very profitable and economical. For example, users can use electric kettles, hair dryers, as well as other energy -intensive devices at night.
As for monotheistic models, for such meters the tariff remains unchanged throughout the day.
Photos of different power meters: