Electric meter power. Two-tariff electric meters how to choose

Updated: 09/03/2018 14:44:57

Judge: Boris Mendel

It is difficult for the modern generation to imagine that in the days of the Soviet Union people consumed electricity without accounting for it. Today, the domestic market offers such a rich assortment of electric meters that it is not surprising to get confused. They differ in price, dimensions, design and purpose. The task is further complicated by the fact that every year more and more requirements for electricity meters are imposed by supervisory authorities. We are moving towards the fact that soon Energonadzor specialists will be able to control each user without leaving their cozy office. The first automated systems have already been launched, and information from consumer meters can be entered into them remotely. The advice of our experts will help users make the right choice.

How to choose an electricity meter

1. Net. At the first stage, it is necessary to determine in which network the electricity meter will be installed. There are single-phase models (220 V), and there are devices for the power network (380 V).
2. Tariffs. The cost of one kilowatt of electricity largely depends on the time of day. At peak load, the price reaches a maximum, while at night the cost of electricity is minimal. If the consumer can use this moment, it is worth choosing a multi-tariff meter.
3. Accuracy of measurements. The most important factor in selecting the right device will be the measurement accuracy. If the new meter shows twice as much as the old one, this is unlikely to please the owners of the house or apartment.
4. Manufacturer. Domestic devices became the most popular among buyers. They are superior to imported analogues not only in price, but also in unpretentiousness, simplicity and durability.

Our review managed to get 12 of the best electric meters. Some of them are intended for domestic purposes, others are in demand in the industrial sector. For an objective selection, the following criteria were taken into account:

1. technical specifications;
2. affordability;
3. assessment of the expert community;
4. user reviews.

Rating of the best electricity meters

The best single-phase single-tariff electricity meters

House and apartment owners most often use the simplest single-phase and single-tariff meters. This segment is dominated by Russian manufacturers. Experts noted several high-quality models.

Accuracy of readings and reliability have become the main trump cards of the Energomer CE 101 R5 145 electric meter in the fight for the first place in the rating. These qualities are highly appreciated by experts, they are often mentioned in the forums. The device is designed to account for electricity in a household network (220 V). The reliability of the model is ensured by a durable case, and fastening is carried out on a DIN rail. The domestic product is compact in size (110x89x72.5 mm), and it weighs only 400 g. The operating temperature range is from -30C to +70C.

Users speak positively about the ease of operation, compact size, accuracy and design. Some consumers complain about the short service life.

Advantages

• stylish design;
• accurate readings;
• durable case;

disadvantages

• not expressed.

The counter Incotex Mercury 201.5 differs from the rating winner in a more affordable price. This model is designed to account for electricity in a single-phase network, it has the first class of accuracy. The screwless housing prevents the penetration of unauthorized persons inside; the manufacturer chose the mounting method on a DIN rail. The device is able to operate in a wide temperature range (-40...+55°C), which significantly expands the scope. The counter is approximately similar to the leader in terms of dimensions and weight, but the counting mechanism of the model is mechanical.

Experts gave the second place to the device for insufficient reliability. Many users complain about a quick failure, some consumers note an increased amount of metered electricity.

Advantages

• low price;
• simple mechanism;
• compact dimensions.

disadvantages

• overestimate;
• fragility.

The best price for a single-phase meter is offered by the domestic manufacturer Taipit. Model Neva 103 1SO has a beautiful appearance, modern electronic filling. It is convenient to take readings thanks to a clear electromechanical device. Readings can be taken from the instrument panel even in the absence of electricity. The manufacturer equipped the device with a DIN rail mount. Unlike competitors, the meter has a reliable clamping unit in which the brackets are fixed with bolts. All these qualities allowed the product to get into the top three of the rating.

Users found some shortcomings during operation. First of all, the device overestimates the readings, which can be explained by incorrect settings. And the cunning guarantee system will not allow you to return the counter in case of failure.

Advantages

• low price;
• reliable clamping unit;
• large numbers on the scoreboard.

disadvantages

• overestimate;
• a cleverly crafted guarantee.

The best single-phase multi-tariff electricity meters

In a number of regions, there is a significant difference in the day and night tariffs. Therefore, it is possible to save on electricity consumption by installing multi-tariff meters. Experts have identified several suitable devices.

The two-tariff Swedish meter Abb FbB 11205-108 is designed for a single-phase network with a current strength of 10 to 80 A. The multifunctional device allows you not only to keep records of consumed electricity at two rates. It has a clock that indicates exact time and date, and tariff switching can be configured according to the schedule. The case of the device is reliably protected from moisture and dust; a DIN rail is used for mounting.

Long-term uninterrupted operation of the device has become the main reason for winning our rating. Many users have appreciated the reliability, compactness and accuracy of measurements. The Swedish counter quickly pays for itself, despite the high price. Sometimes there are problems with setting up two-tariff accounting, but all issues are resolved with the help of power engineers.

Advantages

• quality manufacturing;
• elegant appearance;
• multifunctionality;
• uninterrupted work.

disadvantages

• high price.

The Mercury 200.02 counter of the domestic company Intotex is distinguished by a quick payback period. The combination of an affordable price and multi-tariff accounting allows homeowners to save a lot of money. Most rational decision this device will be purchased for users who have powerful heating devices in their house or apartment, for example, a boiler, electric boiler or underfloor heating. The manufacturer has provided the ability to connect its product to automated system accounting. To do this, the device has a PLC modem. The monthly electricity consumption is remembered, which can be very useful in controversial moments with supervisory authorities.

The disadvantages of the model, the experts attributed the impressive overall dimensions, as well as the lack of backlighting.

Advantages

• affordable price;
• PLC modem;
• 4-tariff accounting;
• fast payback period.

disadvantages

• large dimensions;
• lack of illumination.

EKF Skat 105E/1-5(60) TOI4 multi-tariff

The honorable third place in the rating in the category of multi-tariff single-phase meters is occupied by the EKF Skat 105E / 1-5 (60) TOI4 model. It is designed for installation indoors, where the temperature falls within the range of -30...+55°C. The scope of the device is residential buildings, apartments, garages and offices. Experts singled out such advantages of the meter as low own power consumption, protection against voltage surges and powerful impulse noise, technological margin for accuracy class, durability, 5-year warranty from the manufacturer. The universal mount allows both DIN rail and traditional panel mounting.

Users are satisfied with the low price of the device, ease of installation and operation. Inferior to the device leaders in functional content and dimensions.

Advantages

• low price;
• 5 year warranty;
• low power consumption;
• universal mount.

disadvantages

• modest functionality.

The Energomer CE102M S7 145-JV meter got into our rating due to the optimal combination of price and quality. This model was awarded the "Product of the Year of Russia" award. The device has a number of modern options. The display clearly shows all the necessary information, and the duration of the tariff display can be independently adjusted. This makes it easier to capture data, especially for older people. The device's memory can store all information on energy metering for the past year, and the data is saved even after a long disconnection from the network. The manufacturer has provided the ability to connect the meter to an automated accounting system.

An attractive moment for users is not only low cost, but also a guarantee for 5 years. The low level of reliability did not allow to get into the top three of the model.

Advantages

• acceptable price;
• 5 year warranty;
• many useful options.

disadvantages

• unreliability;
• the assembly is lame.

The best three-phase electricity meters

Owners of country houses, owners of workshops, service stations, as well as heads of large enterprises are turning their attention to three-phase electricity meters. With the right choice, you can save a lot of money on electricity. For some, it is better to choose a single-tariff model, and for others, a multi-tariff one.

Hallmark of the French three-phase meters Schneider Electric iEM3000 is a high precision reading. This quality is especially appreciated in data processing centers, in the industrial and construction sector, where there is a large consumption of electricity. The model is equipped with all modern functions, which simplifies the taking of readings for the consumer. The device can be integrated into an automatic distribution system thanks to a dedicated Smartlink. The device is mounted in an electrical cabinet using a DIN rail.

For the accuracy of readings, uninterrupted operation and durability, the meter becomes the winner of the rating. Users are completely satisfied with his work, only the price is high for ordinary home and apartment owners.

Advantages

• high accuracy of readings;
• wide functionality;
• reliability and durability.

disadvantages

• high price.

The domestic electricity meter Mercury 231 AT-01 took second place in the rating for an affordable price and the presence of an IRDA interface. Such a symbiosis allows the owners of shops, small enterprises or workshops to quickly recoup their investments. And the meter can also be adjusted to the new conditions of the regulatory framework without opening the device and without turning off the electricity. You can set up the model for 2-4 different tariffs, taking into account 16 daily zones. The device's memory contains a log that stores information for the last 11 months. The device is equipped with two degrees of protection against penetration.

Users note the simplicity and ease of use of the counter. Automatic self-diagnosis detects problems at an early stage in a timely manner. The disadvantage of the model is the measurement of only active energy.

Advantages

• affordable price;
• wireless data access;
• reliability and aesthetic design.

disadvantages

• does not read reactive energy.

Owners of houses and workshops that work on the same temporary tariff should pay attention to the three-phase electricity meter CE300 R31 043-J. This affordable appliance has an LCD screen that displays electricity consumption figures. The device is mounted directly to the power network or used as an intermediate link transformer. The domestic device was created taking into account the harsh Russian winter, it retains its performance even at -40 ° C. The model will regularly serve both in a residential building and in unheated workshops or garages. Although affordable, the meter has modern options such as DIN rail or intrusion protection.

According to users, the model favorably differs in price, ease of installation and unpretentiousness. The weak side of the device was frequent errors in operation.

Advantages

• affordable price;
• LCD screen;
• accounting for energy in two directions.

disadvantages

• There may be malfunctions.

Another single-tariff three-phase electricity meter was included in our review. This is the Energomer model CE300 R31 145-J. The device proved to be excellent when working in private homes, small car repair shops and woodworking shops. The device is made as simple as possible, which has a positive impact on the price. The accuracy class (1), narrow terminals for connecting wires did not allow the meter to get into the top three in the rating. It is the last drawback that users are most often dissatisfied with.

The device is not without annoying failures that occur during voltage drops in the mains. Therefore, in regions with unstable power supply, additional stabilizers will have to be installed.

Advantages

• low price;
• ease of connection and operation;
• wide temperature range (-40...+60°С).

disadvantages

• direct measurement;
• narrow terminals.

Incotex Mercury 230 AM-03

The Russian meter Mercury 230 AM-03 closes our rating of three-phase electricity meters. This model is also designed for single tariff power consumption, so it is simple and reliable. In addition, the device is inexpensive, it is also an additional trump card in the competition in the domestic market.

The device in modern times loses somewhat to the leaders of the rating. The manufacturer has equipped the electricity meter with an analog type of indication; it does not have an interface. It takes into account active energy in one direction, there is a backstop, which prevents the readings from being rewound in the opposite direction. The indicator light indicates the presence of current by emitting a red color.

Advantages

• affordable price;
• 3 year warranty;
• simplicity and reliability.

disadvantages

• analog indication;
• modest functional equipment.

Available in every apartment. The exception is houses that have a completely autonomous power supply ( solar panels, windmills), but there are relatively few such houses. That is why today we will talk about the types of electric meters and everything connected with them. After all, the question is very relevant.

Types of electricity meters

There are several types of devices of this type, they differ in the principle of their work and execution. It is possible to divide all existing electricity meters into two large groups, this:

• induction models;
• electronic counters;

Different types of devices work on their characteristic principles, but it should be noted that the type of device does not affect the accuracy of the electric meter in any way, because before sale, all energy meters are calibrated and tested in the relevant organizations that have the right to carry out such activities. These companies are independent, so there can be no catch in this matter. Although there are errors, but they are within allowable norms, but more on that below.

Induction electricity meters

It is also worth knowing that electricity in countryside costs less for the consumer than in the city.

Automatic counters

This is new to our market. Automatic meters are a kind of electronic models. The electricity meter that transmits readings works independently and does not require your participation. It's comfortable and modern. Many people combine the work of such meters with auto payment for electricity with bank card. This is practical, because you do not participate in any data transfer or payment for services at all. Everything happens automatically. Reporting electricity meters have not yet become very common, but they are being chosen by more and more people who install or change an electricity meter. According to experts, such models will tightly enter the everyday life of our fellow citizens in 10-15 years.

Advantages of multitariffing

Of course, such counters also have advantages, let's try to name the main ones:

• Noticeable money savings (the meter will pay off in a year or even faster).
• Help for power plants (reducing the cost of repairs and saving fuel).
• Reducing hazardous and harmful emissions into the atmosphere.

For an ordinary user, the help of a power plant and emissions into the atmosphere are usually of little interest, but reducing cash costs is always an important and pleasant moment.

disadvantages

You can always find both pros and cons. We have already said about the advantages of this type of counters, it's time to raise the issue of disadvantages. There are not many disadvantages, the most important of them is a special way of life, adjusted to the tariffs of the meter, if you do not adjust to the tariffs, then no savings will come out, and perhaps the expenses will also increase. How much does an electric meter with multiple tariffs cost? It all depends on specific model. Multi-tariff models are more expensive than single-tariff counterparts, but they quickly pay for themselves.

Instrument accuracy class

This parameter implies a certain error in the readings, which is inevitable, but its value can vary markedly. Under current rules, it must be 2 or higher. You can always find out this parameter by buying yourself a counter in a store. Most often, the accuracy class is indicated both on the device itself and in the instructions for it.

Meter power

This is perhaps one of the most important features. Power must be considered when buying an electric meter. Before buying, you need to calculate the energy consumption of you and your family for one day. After these calculations and based on them, you can go for the device. There are household electricity meters that are rated for currents from 5 to 100 A. How much does an electricity meter cost, depending on power? Models that are designed for serious loads are always more expensive, but the difference in price is not critical. A 100A model can be bought from 2 thousand rubles. A 60 A model will cost 800-1000 rubles and more.

Mounting Method

Many people think about how to remove the electric meter? This is done by a qualified craftsman, if you do not have the appropriate permission, then you should not perform such work, it would be more correct to contact specialists. All modern electric meters are fixed on a special, so-called DIN-rail or on bolts.

Terms of use of energy meters

There are meters that can only work in heated rooms, but there are also all-weather street models appliances. You yourself determine which option you need, taking into account all the features of operation. Models for warm rooms are cheaper.

Which model of electric energy meter to choose

First, decide on the power of the device. To do this, sum up all the power consumption of the devices and add a third of the resulting figure to the reserve. If you get a power not exceeding 10 kilowatts, then buy a 60 amp model. If the average power per day exceeds 10 kilowatts, then buy a model for 100 amperes. This is an example calculation.

Next, decide on the type of device (mechanical, electronic, single-rate, two-rate). Sometimes the financial aspect becomes key in such a matter. If the financial issue does not interest you, but you still have problems with the choice, then seek the advice of a specialist, he will definitely help you. For example, a one-rate mechanical device is suitable for a summer residence. After all, saving energy only once a week is highly impractical, and it will not be necessary to predict the inclusion of the main devices over time.

After that, you need to resolve the issue with the type of fastening of the counter. Experts recommend the option with a DIN rail. It is convenient, simple, modern and versatile. Also pay attention to the manufacturer of the device, this is an important factor. A high-quality counter from a good and reliable manufacturer can only be found in a specialized store.

This article will help you decide which electricity meter is best to put in an apartment. Here is stated complete classification existing devices by type of construction and energy, number of phases, billing 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 put in an apartment: classification of devices

When looking for where to buy a meter for electricity, it is important not to forget that the choice and purchase of a device must be made taking into account all factors. The device is not subject to return and exchange if there are reasons that prevent its installation, because the registration of the sale is accompanied by making the appropriate marks in the passport. This document contains a serial number as well as a stamp affixed by a government attorney.

Replacing the old one with new device performed in the following cases:

• non-compliance of the device with the requirements put forward by the power company;
• device failure;
• moving into new housing.

Note! There is only one reason for returning an electric energy meter - the presence of a factory defect.

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

1. Type of construction (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

Now such a problem as the replacement of electricity meters is especially relevant, at whose expense the installation of the device worries many citizens. From a theoretical point of view, measuring devices are included in the area of ​​​​responsibility of the electricity supplier company., But in fact, the solution of 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 to carry out its timely replacement in case of non-compliance with the requirements or serious damage.

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 type electricity meter

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

Design advantages:

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

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

The average price of electricity meters in this category is in the range of 900-3100 rubles. The cost depends on the design features of the device and the availability additional features, as well as from the manufacturer. Before deciding to buy electric meters with a remote control, it should be borne in mind 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 Soviet-era buildings. New generation devices have been significantly modified, however, they use a similar principle of operation. 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 the accounting data on the consumption of electricity.

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

Note! Outdated induction devices are gradually being phased out, although they are not without certain advantages.

Advantages of induction devices:

• reliability in relation to operation, low percentage of breakdowns;
• unlimited service life of electric meters;
• sudden voltage drops in electrical network do not adversely affect the device;
• affordable price.

This design option also has disadvantages:

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

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

Prices for induction accounting equipment:

Electricity meters: types of structures by the number of phases

On sale there are devices with one or three phases. 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 allowable network load is 10 kW. This type of accounting equipment is most often used in private houses and city apartments.

Note! It is allowed to connect the device to a three-phase power supply, however, for this you need 3 devices - a single-phase electric meter for each phase.

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

If the house is fed by a network with 3 phases and a voltage of 380 V, it would be more expedient to buy a three-phase electric meter. The need for such powerful equipment is due to the 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 power 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 accounting equipment is accompanied by some errors in relation to 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.

Household devices for apartments have an average deviation of 2%. In practice, this manifests itself as follows: if the consumer has spent 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 less 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. On sale there are devices of several varieties with different percentages of error:

• 0,2-05%;
• 2,5%;
• 1-2%.

Features of the choice of devices by accuracy class

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

With the appearance on the market electronic appliances, the system for recording data on consumed energy has changed significantly. Having completed the installation of an electric meter in an apartment, it is now possible to carry out accounting within several tariffs. Modern devices capable of supporting 2-3 tariffs, and some models even more.

How much do electricity meters cost: prices for four-tariff appliances:

The operation of a multi-tariff meter is based on a breakdown of accounting by time. For example, the calculation of energy consumption at a daily rate starts at 7.00 and ends at 23.00. The countdown of the night mode of billing starts at 23.00 and ends at 7.00.

Useful advice! The cost of electrical energy consumed during the day is much higher than at night. All energy-intensive costs, such as laundry, can be scheduled for the night to save.

The price of day/night electricity meters is much higher than conventional one-rate ones. But not all apartments have a significant difference between the cost of electricity during the day and at night, so the cost of buying multi-tariff equipment may not pay off. Before buying, it is worth making cost calculations broken down by day / night and comparing them with the results of a single tariff.

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

How much do electric meters for an apartment cost: prices for single-tariff appliances:

How to properly replace the electricity meter in the apartment

Devices of the modern generation are more advanced than older models, because they work out enough a large number of electrical energy, excluding the appearance of serious problems:

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

Requirements of Decree 442 on the replacement of electricity meters

According to the updated Decree No. 442, the rules for controlling the market with the retail sale of electrical energy have been changed. The document prescribes 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 the permissible value, it should be carried out. Such a device can be used for the duration of its declared service life or until a serious breakdown.

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

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 electricity meters is carried out. Subject to Article 221, payment for the replacement is made by the owner of the dwelling.

There are circumstances in which payment is made by the municipal service. This applies to those contracts received during the installation of electricity meters in an apartment where there is a corresponding mark, otherwise the owner will cover all costs on his own.

Related article:

What is the best device to choose? The main characteristics of the devices. Overview modern models. Connection and repair of rectifiers.

Terms of operation of the electric meter in the apartment

The operational life of any device is prescribed in the technical passport. During this period, subject to the correct settings and the absence of violations of the operating rules, the device keeps a record of the 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 note showing the time of the first check of the meter, performed on the territory of the manufacturing plant. Most often, the equipment is considered fit for 25-30 years, after which it is necessary to replace the device.

The terms for replacing electric meters in apartments are set 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 the planned verification of electricity meters is performed every 16 years. In the process of control, errors and any violations can be detected. Then the metrological service will recommend replacing the equipment. The average service life of such devices is 32 years.
2. If there is a device with an accuracy class of 2.5, the homeowner is obliged to replace the metering equipment after the expiration of its service life 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 class 2.5 metering devices should be replaced with devices marked 2.0 or 1.0.

How much does it cost to replace electricity meters in apartments

All procedures for the installation of accounting equipment must be carried out by highly professional specialists. Electrical work is extremely difficult and dangerous. The electrician must have the right to carry out the unsealing and sealing of the meter. It is not forbidden 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 one-tariff devices is in the range of 670-700 rubles. Added to this is the cost of service 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

Replacement of metering equipment, as well as its maintenance, is one of the duties 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 site, it acts as public property. In this case, the expiration dates of the electric meter, as well as its timely replacement, are 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 shop or apartment, the entire responsibility for its condition and replacement rests with the owner.

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

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

For residents of apartment buildings, a certain procedure for replacing electricity meters is provided:

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

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

Information that appears in the application:

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

To apply, 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 is installed that needs to be replaced.
2. A power of attorney, if the application is submitted by a representative of the property owner.
3. Passport of a citizen with marks confirming registration.

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

Data recorded in the act:

1. Place of installation of a new accounting device.
2. The address where the apartment building is located.
3. Technical data of devices to be replaced (date of manufacture, type of device, its number, it is necessary at the time of drawing up the act).
4. Technical data of new devices.
5. Date of installation of new equipment.
6. Name of legal entity the person replacing the equipment.

The specialist fills in all the 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 type devices. This category of devices is aimed at accounting for active energy.

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

Note! The prices for electricity meters Mercury 201 and 200, indicated in the table, may differ from the real data. The exact cost depends on the company involved in the sale of accounting equipment.

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

“My meter is in the entrance. The device worked properly, did not cause problems until receipts with large amounts began to arrive. It turns out that the device needed to be replaced a long time ago. As I was told, the readings of obsolete equipment are calculated according to the standards of electricity consumption per person without a meter. Most of the neighbors had Incotex devices, and I decided to stop at the Mercury counter. Upon closer examination, it turned out that the body is made entirely of plastic. This means that the device is completely safe. Numerical data on the dial is clearly visible. In general, I am satisfied with my purchase, although the old counter suited me quite well.

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. For six months of operation, I did not reveal any shortcomings. ”

Evgeny Doroshenko, Yekaterinburg

Features of connecting a single-phase electricity meter

For most models of devices, the connection diagram for single-phase electricity 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 electric meters:

1. Terminal No. 1 is the input to which the phase wire is connected.
2. Terminal No. 2 - output for connecting el. wires leading to the apartment.
3. Terminal No. 3 is an input intended for a 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 electricity meters, even the owner of the apartment can handle this procedure. Most often, device manufacturers place instructions on the inside of the box.

Note! At self-connection be sure to contact the power company to remove the seal and install it on the new appliance. Unsealed devices are not allowed for operation, therefore, the installation of the seal should be carried out as much as possible. short time after the meter is checked and connected.

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

Special protective shields increase the reliability of fixing the device and additional devices. Optimal Level shield mounting is 170 cm from the floor. To make the counter convenient to use, this indicator is calculated based on the growth of the owner of the apartment.

Recommendations for installing metering equipment

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

• forceps;
• pliers;
• insulation stripping pliers protective coating from wires.

Before performing work, you need to make sure that the lead wire is available. It must be turned off for the period when all work will be done, so this operation must be safe and painless.

Be sure to follow all safety rules, isolate all sections of wires with high quality and be extremely attentive to the implementation of each action. You also need to take care of obtaining the appropriate permission from the control authorities and have the necessary documents available.

Today it is rare to find a residential building in which there is no installed counter for electricity, since almost everywhere appliances and equipment powered by the electrical network are used. During installation work with wiring or during its reconstruction, it is necessary to replace old devices with newer, more accurate ones. In order to choose the right device for monitoring power supply, you should know what types of devices are, what parameters they have, as well as a number of features.

The electricity meter is a common device for monitoring the electricity consumed by the user. The reliability of the accounting system directly depends on right choice such equipment. To do this, you need to choose the appropriate type of device design for the corresponding electrical network. Thus, you can purchase an electricity meter for single-phase wiring and three-phase.

Specifications

When choosing an electricity meter, the buyer should be aware that, depending on the principle of operation of the control equipment, they are divided into two types: induction and electronic. Induction devices. This is a mechanical unit in which there are two coils (voltage and current). During operation, a magnetic field is generated that rotates the disc. And the disk, in turn, sets in motion a scale with values ​​​​for calculating the amount of electricity received.

The speed depends on the voltage level in the network. The higher the power, the higher the rotation speed of the disk. Induction meters have counting errors, and increasing the accuracy class is very expensive. Service life is about 15 years. The most common type of construction.

Electronic devices. The operation of such equipment is based on direct measurement of current on the line and voltage. The scale of this counter has electronic form, and is able to store values ​​in memory. The advantages include small dimensions. The device can carry out maintenance of one- and two-tariff accounting. It can also be integrated into an automated system for commercial electricity metering, thanks to an accessible simple meter interface. Numeric values ​​allow more accurate reading of information. However, they have a shorter warranty period and are not as reliable as induction type devices.

The passport of a particular model of an electricity meter indicates all the technical characteristics that it has - allowable temperature during operation, for what type of electric line it is intended, rated voltage and current strength, weight, dimensions, connection diagram, service life, accuracy class, as well as other parameters that are relevant to the installation.

Electricity meters are usually calculated for connection separately to a single-phase and three-phase line. This affects the rated current that can flow through the device. So for single-phase meters, the permissible current strength is in the range from 5 to 60 amperes, and for three-phase meters from 50 to 100 amperes with a connection transformer up to 100 A.

Since in private residential buildings and high-rise buildings with a load of 100 A is rare, then the installation of transformer three-phase meters is not often done. The rated voltage for single-phase devices is standard 220 volts, and for three-phase lines - 380 volts. When you need to choose an electricity meter for residential consumers, you should independently calculate the total power of all equipment that can be connected at the same time.

On average, this value is up to 5,000 watts. For such power, you need a device with a rating of up to 40 amperes. For the current of a three-phase line, you should also pay attention to their connection diagram. When buying, you need to take into account the technical characteristics that determine the possibility of their operation in certain conditions, all the advantages and disadvantages.

Video “Instrument selection options”

Which to choose

At the moment, in the electrical engineering market in the CIS countries, a common model is the electricity meter of the brand Mercury and Energomera. Mercury devices are produced both for a single-phase electrical network and for a three-phase one. A variety of models with various modifications and power allows you to choose a device for any consumer.

The Mercury counter is manufactured in Russian Federation(Moscow city). It occupies a leading position in the electrical equipment sales market. Due to their reliability and range, Mercury meters began to be used not only in residential premises, but also in industrial buildings, in public places. It has favorable price, in contrast to similar samples from other manufacturers. All Mercury devices comply with GOST standards.

• Mercury models are produced with one or two rates. Average term service life of devices is about 25 years, the warranty is issued for 3 years;
• model Mercury-230 is designed for a three-phase network of commercial or technical accounting;
• the Mercury-201 model is connected to a single-phase electrical line and has a simpler design.

Mercury readers are installed on a DIN rail with circuit breakers, occupying 6 modules. Energy meters are reading devices that are also available in various models for their respective purposes. For a three-phase network, an Energomer of the CE300 brand is used. To choose the right reading device, you need to know exactly what characteristics it should have or consult a specialist.

Advantages and disadvantages

The obvious advantages of electronic meters over induction meters include a wide range of functioning. In addition to the ability to count the electricity passing through the device and display its value on the dial, this type of design can be used to connect to a system for separate metering of electricity consumption at different rates.

Two-tariff and multi-tariff models (for example, Mercury or Energomera) are gradually gaining popularity, which increases their demand. This feature allows you to calculate the cost of a unit of electricity for the consumer during the day and separately at night. Electronic counters have become in demand among consumers who live in regions with daily tariff zones. The efficiency of their operation at low temperatures does not decrease. So when placing the electricity meter on the street, the accuracy of the readings will not be affected by the air temperature.

Also to the merits electrical device carry a higher accuracy class (0.2S and 0.5S) than that of induction reading devices. As well as the stability of these values ​​\u200b\u200bwith temperature changes throughout the entire period of operation. They must work stably on single-phase and three-phase networks.