Which electric meter is better to put in the apartment. Which electricity meter is better to install in an apartment: tips for the average user

Before choosing any specific meter model, you must first clarify specifications and conditions of power supply of a private house. If such data is not in the documentation, this must be done independently or with the assistance of specialists. It is mandatory to specify the type of connected voltage, the number of household appliances and equipment to be connected. In addition, you will need a wiring diagram.

When choosing such counters, the following characteristics should be considered:

• The presence of a special power profile that keeps records highest power for a certain period of time.
• Equipped with an internal rater. It is necessary to control tariff transitions, create a load schedule, and record date and time.
• The presence of a log that records the magnitude of voltage dips and overvoltages at each phase, the absence of power supply for a long time, the parameters of active and reactive energy.

After choosing a specific model, during the purchase you must check for state verification seals on the meter. This procedure is considered valid for a single-phase meter for 24 months, and for a three-phase meter - 12 months.

Single-phase meters are in most cases used in private homes, in many old multi-apartment residential buildings, as well as in small offices and shops. At a voltage of 220 V, the power of the electrical networks at these facilities usually ranges from 3 to 7 kW. Since one kilowatt of power corresponds to approximately 4.5 A of circuit current, we can conclude that a single-phase electric meter should be designed for 13-32 A.

On front side metering devices are always indicated key parameters. There are also current indicators (nominal and maximum). If you see the designation 10-40 A, this means that the device you are interested in is designed for the specified amperage. When choosing an electric meter, always pay attention to these values. Three-phase metering devices for supplied kilowatts are usually installed in private cottage communities, new high-rise buildings, industrial and domestic buildings.

The accuracy and reliability of any electricity metering system largely depends on the correct choice of the metering device - the electric meter.

The correct choice of a meter presupposes that its technical characteristics comply with the conditions of its operation and the parameters of the electrical network. It is recommended to select a meter based on the combination of the following factors listed below.

Rated supply voltage. Electricity metering for consumers connected to a single-phase power supply network (220) is carried out using single-phase electricity meters to account for consumed electricity three-phase network(380 V), respectively, three-phase.

Power consumption b. The current rating of modern meters is limited to 100 A. In most cases, when choosing single-phase metering devices, this parameter is not decisive; modern measuring instruments are manufactured with fairly wide ranges of rated (maximum) current from 5 A to 10(100) A.

Thus, for household consumers with a total load power of up to 5 kW, a meter with a nominal value of 10 (40) A is quite suitable (the maximum current value at which the meter meets the accuracy requirements is indicated in parentheses).

A guideline when determining the required value of this parameter can be the current rating of the input circuit breaker(of course, with making the right choice the latter).

When choosing three-phase devices, you should take into account their connection diagram; for currents of 75-100 A, a direct connection meter can be used; above, the use of current transformers is required, expanding the measurement limit and connecting according to a specific circuit.

Design and principle of operation of the device. With this choice, a difficulty often arises - which counters to give preference to: electronic or induction.

To make the optimal decision, it is necessary to take into account the technical characteristics that determine the operating conditions of electronic and induction electricity meters, the advantages and disadvantages of each type.

The obvious advantage of electronic devices over induction analogues is, first of all, their greater functionality.

In addition to counting and displaying information about consumed electricity, the functionality of many models of modern electronic metering devices includes:

Possibility of organizing a system for separate metering of electricity consumption at different tariffs(multi-tariff) depending on the time of day. This function will be in demand by consumers in regions with daily tariff zones.

Possibility of operation at low temperatures. If the metering panel is located in an unheated room or on the street, then an electronic electricity meter should be used as a metering device, after first familiarizing yourself with the range declared by the manufacturer permissible temperature operation specified in the documentation.

High accuracy class- 0.2S, 0.5S and stability of compliance with its declared value at low or frequently changing loads.

Possibility of long-term data storage about electricity consumption, remote readings (the use of additional digital interfaces will be required), remote control unauthorized access to the device for the purpose of stealing electricity, its use in automated systems commercial metering of electricity (ASKUE).

Long duration of MPI- inter-verification interval. So, for most single-phase electronic devices it is 12-16 years.

However, one cannot fail to note the disadvantages. First of all, this is a significantly lower resistance to current overloads, network short circuits, and switching voltage drops. You can also add, albeit insignificantly, but still a higher cost of electronic devices in comparison with induction devices of approximately the same functionality.

Mounting method(applies only to electronic meters). There are two mounting methods: fixing on a DIN rail or using screws. To avoid installation difficulties, it is necessary to select an electric meter with appropriate mounting based on design features metering board - the presence of a DIN rail or holes for mounting screws.

This article will help you decide which electricity meter is best to install in your apartment. Here is a complete classification of existing devices by type of design and energy, number of phases, pricing of these devices, as well as all data on their selection and correct installation. The article discusses the most popular models and current prices for them.

Which electricity meter is better to install in an apartment: classification of devices

When looking for where to buy an electricity meter, it is important not to forget that the selection and purchase of a device must be made taking into account all factors. The device cannot be returned or exchanged if there are reasons that prevent its installation, since the registration of the sale is accompanied by making the appropriate notes in the passport. This document contains serial number, as well as a seal affixed by the state verifier.

Replacing an old device with a new one is carried out in the following cases:

• non-compliance of the device with the requirements put forward by the energy company;
• device failure;
• moving into a new living space.

Note! There is only one reason to return the counter electrical energy– presence of manufacturing defects.

Devices for calculating electrical energy are classified according to the following criteria:

1. Type of design (mechanical type or induction and electronic).
2. Number of phases (single- and three-phase).
3. Type of measured energy (devices for measuring reactive, active energy, as well as universal ones).
4. Tariffs (one-, two- and multi-tariff).

Which electricity meter is better for an apartment: prices, advantages and disadvantages of devices

Nowadays, such a problem as replacing electric meters is especially relevant, at whose expense many citizens are concerned about installing the device. From a theoretical point of view, measuring devices are included in the area of ​​responsibility of the electricity supply company, but in reality the solution to the issue falls on the shoulders of residents living in an apartment or in a private house, who are required by law to have a device for metering consumed electricity, as well as carry out timely replacement in case of non-compliance with requirements or serious breakdown.

There are more than 400 types of measuring equipment for electricity on the market. When the task is to buy electricity meters for an apartment, the price in this case is of secondary importance.

Advantages and disadvantages of installing an electronic electricity meter

Electronic designs are complex devices whose main task is to convert the incoming signal into a digital data format. The result is reflected by a mechanical dial or screen.

Design advantages:

• the error in the readings is very small;
• the functionality allows you to keep records within several tariffs;
• the percentage of electrical energy theft is very small.

Note! Electronic designs have additional functionality that allows you to buy an electricity meter with a remote control, increased memory or a built-in clock.

Disadvantages of electronic devices:

• high sensitivity to sudden changes in voltage in the network;
• high price;
• the designs are not particularly reliable in terms of operation;
• repairs are very expensive.

The average price of electricity meters in this category is in the range of 900-3100 rubles. Cost depends on design features devices and availability additional functions, as well as from the manufacturer. Before you decide to buy electric meters with a remote control, you should consider that the cost of devices with remote control three times more than standard devices.

Prices for meters with remote control (remote control):

Why is it profitable to buy an induction electricity meter: strengths and weaknesses

Electromechanical devices are still found in old buildings from Soviet times. The new generation devices are significantly modified, however, they use a similar operating principle. The design looks like a plastic box equipped with a viewing window. Through the glass you can see the rotational movements of the disk and electricity consumption records.

The meter is equipped with 2 coils that create electromagnetic fields due to passing voltage. Thanks to these magnetic fluxes, an aluminum disk is driven, which affects the wheels that display the numbers. The rotational speed of the disk in old electricity meters, as in new ones, depends on the volume of electricity consumption. This is also reflected in the device indicators.

Note! Outdated induction devices are gradually going out of use, although they are not without certain advantages.

Advantages of induction devices:

• reliability in operation, low percentage of breakdowns;
• unlimited service life of electricity meters;
• sudden changes in voltage in the electrical network do not affect negative influence on the device;
• affordable price.

This design option also has disadvantages:

• significant errors often occur in the readings;
• devices are absolutely not insured against electricity theft;
• the device carries out independent (self-propelled metering without the participation of consumers).

The cost of induction-type electric meters varies between 750-3300 rubles.

Prices for induction metering equipment:

Electricity meters: types of designs by number of phases

There are devices with one or three phases on sale. You need to buy a single-phase electric meter if the apartment is powered by a single-phase network consisting of 2 wires with a voltage level of 220 V. In this case, the maximum permissible network load is 10 kW. This type of accounting equipment is most often used in private houses and city apartments.

Note! It is possible to connect the device to a three-phase electrical network, however, for this you will need 3 devices - a single-phase electric meter for each phase.

The average price of single-phase electricity meters is 870-2700 rubles.

If the house is recharged using a 3-phase network with a voltage of 380 V, it would be more advisable to buy a three-phase electric meter. The need for such powerful equipment is due to high energy consumption.

Most often, these networks are powered by:

• apartment buildings;
• small industries and factories;
• workshops;
• panel board general purpose.

The average price of three-phase electricity meters is in the range of 2800-3300 rubles.

This type of equipment is also used in the private sector if devices with high energy consumption are used:

• three-phase electric motors;
• electric boilers for heating;
• welding machines and other specialized tools.

The price of three-phase electricity meters:

What is better to put electric meters in the apartment according to the accuracy class

The operation of any metering equipment is accompanied by some errors in the readings. Differences in its indicators depend on which class the counter belongs to. A deviation of only a few percent from the actual volume of consumption is allowed.

Devices household use for apartments on average they have a deviation of within 2%. In practice, this manifests itself as follows: if a consumer has consumed 100 kW of electricity, then the data displayed by the meter will be in the range of 98-102 kW.

Note! The lower the accuracy value (class) in the technical data sheet of the device, the fewer errors occur when metering electricity. Such counters are much more expensive than others.

If you determine which electricity meters are better based on the error rate, you should give preference to the 2nd class of devices. There are several types of devices on sale with different percentages of error:

• 0,2-05%;
• 2,5%;
• 1-2%.

Features of choosing devices by accuracy class

Single-tariff and multi-tariff electricity meters: price and features

With the advent of electronic devices on the market, the system for recording data on consumed energy has changed significantly. Having installed an electric meter in an apartment, you can now carry out metering within several tariffs. Modern devices capable of supporting 2-3 tariffs, and some models – even more.

How much do electricity meters cost: prices of four-tariff devices:

The operation of a multi-tariff meter is based on a breakdown of metering by time. For example, calculating energy consumption at a daily rate starts at 7.00 and stops at 23.00. The countdown of the night tariff regime begins at 23.00 and ends at 7.00.

Helpful advice! The cost of electrical energy consumed during the day is significantly higher than at night. All energy-intensive expenses, such as washing, can be scheduled at night to save money.

The price of day/night electricity meters is much higher than conventional single-tariff ones. But not all apartments have a significant difference between the cost of electricity during the day and at night, so the cost of purchasing multi-tariff equipment may not be recouped. Before purchasing, you should make cost calculations broken down by day/night and compare them with the results for a single tariff.

If the savings reach 35-50%, you can safely replace the electricity meter in your apartment with a multi-tariff one, but if the difference is only 100-200 rubles, then such a purchase will be inappropriate.

How much do electricity meters cost for an apartment: prices of single-tariff devices:

How to properly replace an electricity meter in an apartment

Modern generation devices are more advanced than older models, because they work enough a large number of electrical energy, eliminating the occurrence of serious problems:

• changes;
• failures;
• short circuits and fires.

Requirements of Decree 442 on the replacement of electricity meters

According to the updated resolution No. 442, the rules for controlling the market for the retail sale of electrical energy have been changed. The document stipulates that the transmission of readings from electricity meters used by citizens of the Russian Federation should be carried out using exclusively electrical devices, and the minimum acceptable accuracy class of devices is 2.0.

Note! If the accuracy class of the device is less than acceptable, it should be carried out. Such a device can be used throughout its stated service life or until serious damage occurs.

After decree No. 442 was issued, the service life of electric meters corresponds to the duration of the inspection interval - 6 years. This means that an inappropriate device can be used until the first inspection by the authorities, then it must be replaced. Today, the production of devices with an accuracy class below 2.0 is stopped. Repairs are also not permitted.

On the one hand, the procedure for changing metering equipment is designed to increase the safety of electricity operation, on the other hand, the question arises at whose expense the replacement of electric meters is carried out. Subject to Article 221, payment for replacement is made by the owner of the residential premises.

There are circumstances in which payment is made by the municipal service. This applies to those contracts received when installing electricity meters in an apartment where there is a corresponding note, otherwise the owner independently covers all costs.

Related article:

Which device is better to choose? Main characteristics of devices. Review modern models. Connection and repair of rectifiers.

Service life of an electric meter in an apartment

The operational life of any device is specified in the technical data sheet. During this period, provided that the settings are correct and there are no violations of operating rules, the device keeps records of consumed energy as accurately as possible. Therefore, all data obtained during this period can be considered reliable.

To check the service life of the device, just look at the technical data sheet. There is a mark indicating the time of the first meter check performed on the premises of the manufacturing plant. Most often, equipment is considered suitable for 25-30 years, after which it is necessary to replace the device.

The timing for replacing electric meters in apartments is established after a scheduled check of the device:

1. If there is a meter in the apartment with an accuracy class of 2.0 or 1.0, then scheduled verification of electricity meters is performed every 16 years. During the control process, errors and any violations may be detected. Then the metrological service will recommend replacing the equipment. Average service life similar devices- 32 years.
2. If there is a device with an accuracy class of 2.5, the homeowner is obliged to replace the accounting equipment after its service life expires according to the technical passport. A signal for replacement can also be the detection of errors in the operation of the device.

Note! A law passed in 2012 mandates that all metering devices classified as 2.5 must be replaced with meters labeled 2.0 or 1.0.

How much does it cost to replace electric meters in apartments?

All procedures for installing accounting equipment must be carried out by highly professional specialists. Working with electricity is extremely difficult and dangerous. The electrician must have the right to unseal and seal the meter. It is not prohibited to use the services of private companies, however, you should find out in advance whether the master has the appropriate permission. Otherwise, such actions may be illegal.

The cost of single-phase multi-tariff electricity meters Mercury is 1280-1400 rubles. The price of similar single-tariff devices is in the range of 670-700 rubles. Added to this is the cost of maintenance for dismantling the old device, installing new equipment and connecting it.

Installation of electricity meters in an apartment: service prices:

How to change electricity meters in an apartment: features of the procedure

Replacing metering equipment, as well as its maintenance, is among the responsibilities of the owner of the premises where the meter is located:

1. If the device is installed in a common corridor or on a common area, it acts as public property. In this case, the shelf life of the electric meter, as well as its timely replacement, is controlled by the Homeowners Association, Management company or the owner of the building if it is owned by an organization or municipality.
2. If the device is installed inside a store or apartment, all responsibility for its condition and replacement rests with the owner.

Note! If the agreement with the apartment tenant states that the responsibility for installing metering equipment is assigned to the energy supply company, then the latter carries out the procedure for a fee or allocates an amount from the funds already paid (depending on the agreement).

How to replace electricity meters in an apartment: list of documentation

For residents apartment buildings There is a specific procedure for replacing electric meters:

1. Submitting an application.
2. Providing the necessary package of documents.
3. Drawing up an act.
4. Electric meter verification procedure.
5. Sealing the device and issuing a certificate confirming this.

All documents are drawn up in accordance with the standards prescribed for them by law.

Information that is displayed in the application:

1. Document's name.
2. Date of compilation and place.
3. The applicant's name and details (telephone, email and postal addresses).
4. Address of the facility where the equipment will be replaced.
5. Requirements for a new device.
6. Details assigned to the electricity supply contract.

To submit an application, you will need a standard package of documents provided for by the procedure:

1. A document identifying the owner of the property where the meter in need of replacement is installed.
2. Power of attorney, if the application is submitted by a representative of the property owner.
3. Citizen's passport with marks confirming registration.

Note! After reviewing the listed documents, the authorized bodies decide whether to replace the equipment. As a result, a replacement act is signed between the contractor and the applicant.

Data recorded in the act:

1. Installation location of the new metering device.
2. The address where the apartment building is located.
3. Technical data of the devices to be replaced (date of production, type of device, its number, required at the time of drawing up the report).
4. Technical data of new devices.
5. Date of installation of new equipment.
6. Legal name person replacing the equipment.

The specialist fills out all fields of the document in two copies, one of which is given to the applicant.

Mercury electricity meters: prices and reviews

The most popular manufacturer of electricity metering equipment on the market is Incotex. Mercury 201 electricity meters are the most popular and optimal single-phase devices. This category of devices is aimed at metering active energy.

Price of single-phase electricity meters Mercury 201 (single-tariff devices):

Note! Prices for electricity meters Mercury 201 and 200 indicated in the table may differ from actual data. The exact cost depends on the company selling accounting equipment.

Below are reviews left by buyers of Mercury 201 electricity meters, reviews from forums:

“My meter is located in the entrance. The device worked properly and did not cause problems until receipts with large amounts began to arrive. It turns out that the device should have been replaced a long time ago. As I was told, the readings of outdated equipment are calculated according to the standards for electricity consumption per person without a meter. Most of my neighbors had Incotex devices, and I decided to go with the Mercury counter. Upon closer examination, it turned out that the case is made entirely of plastic. This means that the device is completely safe. The numeric data on the dial is clearly visible. Overall, I'm happy with my purchase, although old counter I was quite happy with it.”

Victoria Bendas, Moscow

“When it came time to change the meter, on the advice of experts, I bought a single-phase one - Mercury 201. The device is safe and reliable. During six months of operation, I did not identify any shortcomings.”

Evgeny Doroshenko, Ekaterinburg

Features of connecting a single-phase electricity meter

For most models of devices, the connection diagram for single-phase electric meters is directly the same. Single-phase equipment is equipped with 4 terminals, which is typical for devices in this category. Electrical cables are connected to them.

Rules for installing single-phase electricity meters:

1. Terminal No. 1 is the input to which the phase wire is connected.
2. Terminal No. 2 – output for electrical connection. wires leading to the apartment.
3. Terminal No. 3 is an input intended for the neutral wire.
4. Terminal No. 4 is the output to which the neutral wire is connected.

If you study in detail the diagram explaining how to connect single-phase electric meters, even the owner of the apartment can cope with this procedure. Most often, device manufacturers post instructions with inside boxes.

Note! At self-connection You must contact the power company to remove the seal and install it on the new appliance. Unsealed devices are not allowed for operation, so the seal must be installed as soon as possible after the meter has been checked and connected.

To securely fix the email. wires at the terminals of the device, it is recommended to use a screw fastening method. The terminals that serve as outputs pass current to the distributors and protective elements. The general purpose terminal for the neutral wire supplies the "phase" to the (protective elements) and fuses. For this reason, it would be more rational to install all used devices in one panel.

Special protective shields increase the reliability of fixation of the device and additional devices. The optimal mounting level for the shield is 170 cm from the floor. To make the meter convenient to use, this indicator is calculated based on the height of the apartment owner.

Recommendations for installing accounting equipment

To install electricity meters seamlessly, experts recommend using the appropriate tool:

• forceps;
• pliers;
• pliers for removing insulation protective coating from wires.

Before carrying out work, you need to make sure that the input wire is accessible. It must be turned off for the period when all work will be carried out, so this operation must be safe and painless.

Be sure to adhere to all safety rules, properly insulate all wire sections and be extremely careful when performing each action. You also need to take care of obtaining the appropriate permission from the control authorities and have the necessary documents available.

Today we will talk about metering devices and what electric meter It's better to put it in an apartment. Theoretically, the meter is the responsibility of the company that sells you electricity, but in practice, this issue has to be resolved by the residents of the house or apartment. You are required to have a metering device and replace it as needed, for example, if it is old and does not meet modern requirements.

And here a big question arises - how to choose an electric meter for an apartment? If you can’t count them, like mosquitoes in summer. Offhand, any experienced electrician will name you a couple of dozen manufacturing companies from Russia and neighboring fraternal republics.

But even the coolest of us will not remember all the types, because there are more than four hundred names. And this is without imported electricity meters from Europe. In short, your eyes widen and your head spins if you need to buy an electric meter for an apartment, and even the price is a secondary issue.

So, we decided to write instructions on how to choose an electricity meter for an apartment or house.

1. Electricity meter for an apartment - design and characteristics

To understand how to choose, you need to know what we are choosing. As the rabbit in Winnie the Pooh said: “I come in different forms!”, the same picture applies to counters.

Induction and electronic

First of all, metering devices are divided by design.

Induction counter was invented a long time ago and until recently only it was used. This is a familiar disk drive that is located on the site or right in the apartment. Inside such a device there are two magnetic coils, current and voltage. Their magnetic field rotates a disk connected to a counting mechanism, which takes into account the kilowatts used.

A distinctive feature of an induction meter is its reliability and long term work. According to the passport, at least 15 years, but in fact, such “electricity accountants” have been quietly working for 30-50 years. But the accuracy of the measurement is rather weak, as they say, only large fish are caught, and weak loads are missed.

Electronic counter measures flow directly and appeared not so long ago. There are no moving measuring parts in it; consumption data is shown on the indicator board. An electronic recorder can store consumption figures and transmit them, for example, in automated smart home systems.

Manufacturers promise that they will work for at least 10-15 years, but so far none have reached this age; they appeared only recently. As for reliability, we can say that the electronics can be glitchy, but in general, if done well, it works just as well.

Single-phase or three-phase meter for an apartment

Because the, Electricity of the net There are single-phase, with a voltage rating of 220 V and three-phase with a voltage of 380 V, then the meters are produced different types.

Such a device can calculate electricity at 4 tariffs. The maximum current of 60A will easily cover up to 10 kilowatts of home equipment load. Calibration interval 16 years, warranty 6, service life 30. Such a meter can be connected to a computer and transmit accounting data remotely. And to control the load in different tariff zones, install an RCD. So that energy-intensive equipment does not turn on autonomously during the hours of the most expensive peak load.

Three-phase meter Mercury for a private home

It has an accuracy class of 1.0 and a verification interval of 10 years. Single and multi-tariff meters of the 230 and 231 series are suitable for metering active energy. Devices of the 230, 234, 236 and AR series are useful for metering active, reactive and total load.

Electric meters Energomera

Produced at electrical plants of the same name. The company has been operating for more than 20 years and the products have passed the reliability test. Basic accuracy class 1.0, calibration interval 16 years, warranty 5 years and service life up to 30 years.

Single-phase single-tariff meters Energomera series CE 101

They keep track of active electricity at a maximum current of 60/100A. Designed for 220 thousand operating hours. The design with a measuring shunt ensures high accuracy and immunity of the device to electromagnetic interference. CE 101 series meters are available in different options housings for both mounting on a DIN rail and on a plane for bolts.

Multi-tariff single-phase meter Energomera CE 102

Can measure consumption at four tariffs and transmit data. The results are stored in non-volatile memory and are not lost when the meter is de-energized. You can also take accumulated readings from the device without mains voltage. The manufacturer produces equipment in housings different types with installation in panels with bolts or on a DIN rail. The meter is well protected from mechanical influences and attempts to “hacking data” using a magnet.

Three-phase Energomera meters for a private house

Suitable for taking into account different types of load in three-phase circuits. Active, reactive and total energy are taken into account. Designed for a current value of 60/100A, can be connected directly or through a current transformer. Calibration interval is 16 years, warranty is 4 years and service life is 30 years.

For single-tariff metering, three-phase Energomer meters of the CE300, CE302 and TsE6803V series have been developed. Bolt or DIN rail mounting, depending on enclosure type. Equipment of the CE301, 303, 304 series is suitable for multi-tariff metering.

Electric meters Neva

Produced by the company "TAIPIT", they differ convenient design housings, there are narrow rail-mounted models that are suitable for assembling modular electrical panels. Basic accuracy class 1.0, re-verification period 16 years, warranty for 5 years and service life 30 years.

Single-tariff single-phase electric meter Neva series 101-105

Suitable for household accounting in apartments and houses. Designed for current from 40 to 80 A. Mounted on a rail or on the surface of a panel using bolts. The equipment has durable housings and a modern design.

Three-phase meter Neva for a country house

For installation on a three-phase network, devices of the Neva 301, 303, 306 series for single-tariff metering are useful. They can be installed directly connected or via a transformer. The maximum current in the network is 60/100A, with a transformer connection 7.5/10A. Meter housings are designed for installation using dinrails or screws.

ABB electricity meters

The ABB single-phase multi-tariff meter FBU-11205 is installed on a network with a load of up to 80 Amperes. Accounting is carried out at two tariffs, with storage and transmission of data via infrared.

All equipment has Russian certificates of conformity, calibration interval is 16 years, service life is 30 years, warranty is up to 5 years.

8. Which electric meter is better to install in an apartment - the best option

It’s clear that you want to install the best meter, so let’s say a few words about optimal option. On the one hand, such recommendations are the personal preferences of the electrician, on the other hand, they are based on experience in installing meters. When you install 2-3 hundred devices in a year, you recognize them, as they say, both in profile and in front.

Mercury 230 AM-02

These models calculate the energy consumption in three-phase circuits in one or two directions. Accuracy class 0.5-1.0, maximum current load 60-100 Amperes. Connection both directly and via current transformers. Installation on a dinrail or in a shield with bolts. Designed to meter active energy (models 231 AT-01, CE 301) or active and reactive (230 ART-01, 230 ART-02). A multi-tariff three-phase meter can operate both autonomously and as part of an automated system.

Important! The choice of the optimal meter model should match the recommended manufacturers from your electricity supplier. For example, Mosenergosbyt proposes to install Mercury and Energomera meters for apartments. Petroelectrosbyt prefers products from Taipit (Neva meters) and Energomer. If you do not live in capital cities, the requirements may be different. Check them on the local energy sales website or at their office.

9. Let's summarize

The online store site offers high-quality electric meters in a wide range of Russian and European production. Everything is done according to GOST standards, with the correct documents and valid verification dates

Come in and choose your counter!

Ask what is unclear or just interesting. As they say in Odessa, “we still have something to tell you!”

If necessary, we will assemble and deliver a turnkey installation kit from the meter to the DIN rails and fasteners. We will take into account your wishes regarding price and preferences for “brands and companies”.

Call and ask! Phones

Any home owner must install devices for metering water, electricity, gas, etc. If there is a delay in installing devices for metering heat and water, then the installation of an electricity meter must be completed first.

electricity?

Absolutely all companies that produce this type of device give them a warranty period of sixteen years, and this is a lot and indicates that frequent replacement will not be required.

But in rare cases, when it comes to purchasing a new measuring instrument, a buyer who does not have the full amount of information may make the wrong choice. Which one is better? First you need to familiarize yourself with the operating principle of the electric meter, as well as the existing model range.

Induction electricity meter

There are two types of electricity meters: induction and electronic. What email? the counter is best to use, decide by reading the information below.

So, the first type of device is mechanical. The induction meter consists of a voltage coil, a metal disk and a current coil. Because of magnetic field, appearing as a result of the interaction of two coils, the metal disk begins to rotate, also rotating behind it wheels with numbers showing the amount of electrical energy expended.

Such devices have their pros and cons. The advantages include their relatively low cost and long term service, and the downside is the error in readings is about 2%. But the long period of presence of this type of meters on the market overshadows the rather large percentage of errors and makes them quite popular among buyers. Therefore, to answer the question of which meter is better, let's look at the second type of device.

Electronic counter

The electronic device is radically different from the above. It completely lacks any signs of mechanics, and the current is directly supplied to microcircuits and semiconductors. These microcircuits show the amount of electricity consumed, displaying numbers on the built-in electronic display. The main positive characteristics of this are small size, more accurate data, electronic display, ease of reading and the ability to calculate consumption for several different tariff plans. And the high cost and relatively short service life are unpleasant additions to it.

Single-phase electricity meters

According to the type of network to which the connection is made, electricity is divided into single-phase and three-phase.

Single-phase meters are connected to a two-wire, single-phase network. The total load on the network along with the number of wires are the main factors. Single-phase metering devices are used when electricity consumption does not exceed 10 kV. This meter produces 220 V.

Three-phase devices

These meters are connected to three-phase networks, as is clear from their name. Since they need a large amount of energy for their operation, they have found their application in factories or switchboard multi-storey residential buildings.

Which one is better to install in a private home? Most often they install single-phase ones. They can also be connected to a three-phase network, but only then will such a device be needed for each phase. The installation of a three-phase meter can only be justified by the use of any equipment with a high electricity demand, for example, welding machine or something like that. At the output, the meter produces 380 V and protects the building from power surges.

Classification by tariff

Electricity meters also come in different tariffs. Which is better?

1. Single tariff. Keeps counting only for one selected tariff. Often used in everyday life.
2. Two-tariff. Allows you to count energy consumption according to two tariff plans, for example, one tariff during the day, a completely different one at night. It is used in various factories and organizations where work is carried out in two shifts.
3. Multi-tariff. Calculates energy for several tariffs at once and reduces costs.

Classification by energy type

Single-phase devices measure exclusively active energy passing through them, and three-phase, in addition to active, also measure reactive energy, also taking into account the direction of flows. This helps to save a lot on large objects.

Electricity meters: which one is better?

To choose the best meter, you need to consider some parameters of the device and learn something about the network.

Companies that produce the best electricity meters

According to official data from the Abarcad company with its main office in Moscow, in 2012 in the territory Russian Federation More than eight million electricity meters were made, of which the lion's share (90%) were single-phase devices. This suggests that electricity meters are often replaced in the household sector.

Which one is better to use? It is known that more than ¾ of all production in Russia comes from three Russian companies. Among them are the Energomera concern (Stavropol), the Incotex company (Moscow) and the Moscow Measuring Instruments Plant holding. The leading place in this trio is occupied by Energomera with 40% of production assets, followed by Incotex and the Moscow Plant of Measuring Instruments with 29 and 7%, respectively. The price of domestic meters is significantly lower than foreign ones, but the difference in quality is not very noticeable.

Market leaders in electricity meters

In order for you to decide which meter is best to install, let’s look at these companies in a little more detail:

1. The Stavropol concern Energomera owns a couple of factories not only in Russia, but also in neighboring countries. Specializes in the production of high quality energy metering devices of all types, the price of which varies from 13 to 330 units in European currency.
2. Incotex is a large domestic organization with factories in the Russian Federation and beyond. The specialty of this company is the development and assembly of electronic devices, which include electricity meters of all types.
3. "Moscow Measuring Instruments Plant" (MZIP). An old enterprise producing electricity meters and various radio equipment. The devices produced include single- and two-phase electricity meters.