Every owner of an apartment or his own house is concerned about the issue of saving electricity. To this end, a meter must be installed in each residential area. But getting into the store, the eyes of the buyer run away from the variety provided on the shelves of the store. And questions arise: which one is better to buy, how not to buy an outdated model?
Content
An electric meter is a device that records the amount of electricity used. When choosing it, you should pay attention to the following points:
Guided by the desire to save money, it is worth purchasing two-tariff meters. Unlike the most common single-tariff meters, their working time is divided into 2 parts: night and day. This makes it possible in large cities to reduce the load on electrical networks by reducing the cost of a kilowatt at night. It is recommended to use two-tariff meters if the residential area has:
In the absence of the above factors, you can also use a single-tariff meter. It costs less and is considered more reliable by experts.
Equally important when choosing a meter is the amount of power consumed per day in this house. The average power consumption per day is considered to be 10 kW at a current load of up to 60 amperes. All meters are designed for a working network frequency of 50 Hertz. Subject to the fact that the load will be more than 10 kW, it is necessary to purchase a meter with a current of 100 A.
In order to determine the power used in a residential area, it is necessary to look into the passports of electrical appliances located throughout the house. They indicate the power of each electric assistant. The calculation should take into account their average operating time within 24 hours. Adding all the data, you get the average daily power, which is taken into account when buying a meter.
There are two types of electricity metering devices of our time: mechanical and electronic.Experts say that the first type of electricity meters is the most reliable and durable. The advantages of the latter are the ability to store various information about the electrical network: peak power consumption, voltage drops and other indicators, depending on the model of the device.
The choice of an electric meter will also be affected by:
When buying an electric meter, when choosing, it is advisable to pay attention to devices manufactured by companies that have proven themselves on the positive side. These can be counted:
Buyers are also interested in the question of the price of the device. The functionality provided depends on how much it will cost: the number of tariffs, accuracy and its class, design model and technical characteristics.
One-rate OS
Neva 103 1SO is a mechanical type certified device with a 7-digit readout device.
The kit includes a backstop, shunt, LED indicator, screw terminals. The case of the device is made of gray plastic. Mounted using a DIN rail. High-quality latches help to install it easily and quickly. The counter satisfies the requirements of professionals and consumers. And also the ratio of price, quality and efficiency is excellent.
The average price is 425 rubles.
Single rate LCD
Mercury 201.8 is a modern modification device with a 7-digit LCD screen. Differs in the increased operational data.
It stands out among other models by the presence of a modular housing, screw terminals and a current measuring transducer. Fastened with a DIN rail.An LED backlight is installed, which allows you to take readings even in poor lighting conditions. The model is relatively new and it is just starting to earn a leading position.
The average price is 680 rubles.
Multi-tariff LCD economical
Energy meter CE102M S7 145-JV is a multifunctional model that is resistant to mechanical, climatic and electromagnetic influences.
Distinctive features of the device are the presence of a communication interface, non-volatile memory. Displays readings even when power is off. A shunt is included in the package. On the counter, you can identify the data accumulated for 24 hours or a month. The model has buttons with which you can control. The 7-digit LCD monitor has a backlight.
Average price - 1800 rubles
Multi-tariff LCD self-sustaining
Mercury 200.02 is a device that allows you to keep a flexible record of consumed electricity. With the help of an RCD, you can control the load. Mounted on a DIN panel. The model allows you to take readings at a maximum of 4 tariffs. The data is displayed on the screen. Information is stored up to 11 months.With the correct distribution of the daily load on the power grid, the device allows you to save money profitably.
Average price - 1950 rubles
One-rate OS
Mercury 231 AM-01 is a commercial modification that allows you to keep a record of dynamic electricity in one direction. The process is carried out by a mechanical type of device in a three- or four-section AC network. Works both independently and in the ASKUE system. The counter drum rotates only in the direction of increase. LED backlight helps to read information about electricity. Control over the amount of energy consumed is carried out in a single-tariff mode. Mounted on a DIN rail.
Average price - 2300 rubles
Single rate LCD
Energy meter CE300 R31 043-J is a device with a liquid crystal screen. You can connect it through a transformer and directly. The meter is equipped with a LED, is very sensitive to voltage drops, and is economical in its own maintenance.Mounted on a DIN rail.
The average price is 3000 rubles.
Multi-tariff LCD
Mercury 231 AT-01 is a multi-purpose device that is used for commercial purposes. It is used to control the power consumption in one direction only. Allows you to take data from the network in 3 or 4 wires. The model is equipped with 2 methods of protection: two-stage protection against access to the received information and memory from the directional supply of the metrology coefficient. Allows you to work in a system of 2 or 4 tariffs and up to 12 seasons. Mounted on a DIN rail.
The average price is 2800 rubles.
There are several criteria by which devices can be divided among themselves. In connection with the design feature, they are divided into induction and electronic. For a long time, apartments and houses were equipped only with induction meters. A distinctive feature of such devices is a rotating disk. Such devices do not have a high class of accuracy.
In the 21st century, electronic counters appeared. They are equipped with an LCD screen.But the main advantage is their accuracy in readings. This helps them to lead the market.
Meters are also produced single-phase and three-phase. The former are most often installed in apartments. And in houses with boilers, boilers and electric motors, it is recommended to use three-phase. Recently, multi-phase devices have begun to be produced. They help to correctly distribute energy, which does not create congestion in the network. Users note significant savings when accounting for energy with such meters.
Metering devices for consumed electricity are designed to work for decades, and also require sealing and issuance of documents. These factors influence the need to purchase a quality electric meter in order to avoid problems.