Electricity meters

Have you always wanted to know how much energy individual devices in your household consume? This catalog from the eibabo® shop offers you the right measuring instruments for this. Here you can get high-quality electricity meters and many other meters at top conditions. In our modern home we use numerous electrical devices. In addition to lamps, washing machines and refrigerators, media technology is a major energy consumer. Televisions, computers, chargers for smartphones and building automation are powered by electrical energy. Although some of these devices also help save electricity, it is interesting to know how much energy they actually use.

What are electricity meters?

Electricity meters are devices for displaying electricity consumption or energy consumption in electrical systems. AC induction meters are predominantly used in households, which directly display the consumed kilowatt hours. To find out how high your energy consumption is in a certain period of time, you need to take two measurements. Subtract the value of the second measurement from the value of the first measurement.

Source: eibabo®, ABB B23 113-100 three-phase meter M-BusImage: ABB B23 113-100 three-phase meter M-Bus

What types of electricity meters are there?

There are two main types of electricity meters. These are used by the utility companies. On the one hand there are the electromechanical meters and on the other hand the so-called intelligent meters or smart meters. If you operate a solar system and feed electricity into the grid, you need a third type of meter, the bidirectional meter. These measure the current drawn and the current fed in. As a rule, you have little influence on the electricity meters that come from your energy supplier. These are installed where the power lines enter your building. This catalog is about electricity meters, which you can also install. This allows the consumption of a specific section of your installation or the consumption of an individual end device to be measured.

How is an electromechanical meter constructed?

Electromechanical induction meters are widely used and can be found in many homes. These contain an electrically conductive, non-magnetic, rotatable 'Ferraris disc'. The disk is driven by the interaction of magnetic fields generated by two electromagnets.

  • Magnet 1 is powered by the current from the incoming power lines
  • Magnet 2 is powered by the current demanded by the building's electrical circuits

 

The rotation of the disk is slowed down by two permanent magnets, which exert a proportional opposing force. The aluminum disc drives a scrolling mechanism that displays kilowatt hours or fractions thereof.

How does a smart meter work?

Electronic electricity meters have been on the market for several years. The current standard for electronic electricity meters are digital electricity meters and so-called smart meters. These work in a similar way to electromechanical electricity meters. Instead of mechanical moving parts, they contain a battery and a communication chip. The chip sends meter readings wirelessly to a collection point. This happens several times a day depending on the time of day. The data is usually transmitted to the electricity supplier every quarter of an hour via power lines, mobile communications or high-frequency networks.

 


Already knew?

The chip is also known as an encoder or ERT device. This uses the same frequency as many cordless phones. However, the device is designed to avoid interference.


 

The battery in the communication chip in digital electricity meters is designed for a service life of 15 to 20 years.

What are the advantages of measuring with an electronic electricity meter?

With an electronic electricity meter, you can not only determine how much energy you use, but also when. At first glance, this may be less important additional information. But knowing exactly when and how much electricity you are using can save you a lot of money. Electricity prices vary throughout the day. When demand is high, electricity costs more than when demand is low. Constantly rising energy costs are leading to deregulation of the electricity markets. In the future, utilities could offer electricity tariffs that bill for the electricity provided based on the time of use. This would be a significantly fairer billing method than the current variant, which is based on average costs.

smart grid

Smart grids are intelligent power networks that take generation, storage and consumption into account. This allows fluctuations in power in the network to be compensated. Networking and coordination is carried out using modern technologies and decentralized energy management systems.


Smart meters can also be read remotely. Utility companies thus save operating costs and working time. Electronic electricity meters are therefore an essential part of the so-called smart grid. The devices help you to question your habits and save money if you use your electricity off-peak. Think of buying an electronic electricity meter as an investment in your future.

How do I find the right electricity meter?

Modern electricity meters can be used to display electricity consumption in real time. Especially in the KNX area, intelligent electricity meters offer many advantages. These support you with load management within your installation and with the monitoring of services and end devices. This saves you money and time because you can make adjustments according to your consumption profile. The use of data loggers or programmable logic controllers makes it easier to display, control, analyze and monitor the data. You can integrate models with a KNX interface directly into your building automation system using Engineering Tool Software (ETS). But which things are still important when buying?

number of phases

When choosing an electricity meter, please consider how many phases are required. The most common models are single-phase or three-phase. If your current system that you are getting your data from is single phase, you will need a single phase electricity meter. If the electrical system is three-phase, use a three-phase electricity meter. As a rule, the devices can be mounted on a DIN rail. The measurement is carried out flexibly for various performance parameters such as:

  • True RMS Voltage (Vrms)
  • True RMS Current (Irms)
  • Active power (kW)
  • Active energy (kWh)
  • Apparent Power (kVA)
  • Apparent energy (kVAh)
  • Reactive Power (kVAR)
  • Reactive energy (kVARh)
  • Power Factor (PF)
  • frequency

 

The devices can be used both on the primary side of the low voltage and on the secondary side of the medium voltage and high voltage.

The amp

Pay attention to how many amps you need for the system. Commonly, smart electricity meters support 60 amps, 100 amps, and 200 amps. The right choice depends on your power system. Using a 100A electricity meter for a system that requires 200A would be impractical.

Bus systems and networks

Intelligent electricity meters communicate via various media and protocols. Please determine in advance which communication protocols will be used. Well-known fieldbus systems are AS-Interface, CAN, CANopen, M-Bus, EtherCAT and others.

 

eibabo - technology store

 

Catalogue content:


In this eibabo® catalogue Meters > Kilowatt-hour meter you will find items from the following product groups:

Item overview:

  • Active consumption meter
  • Active power meter
  • Additional room
  • Bidirectional counter
  • Cable conversion converter
  • Combination counter
  • Combination meter
  • Converter meter
  • Current measuring adapter
  • DIN rail
  • DIN rail counter
  • Direct meter
  • Electricity meter
  • Energy cost meter
  • Energy management
  • Energy meter
  • Heat pump systems
  • Measuring accessories
  • Measuring technology
  • Power factor
  • Power meter plug
  • Single phase meter
  • Spare Parts
  • Tariff meter
  • Three-phase meter
  • Transducer
  • Two-tariff meter
  • Two-wire meter


from the following manufacturers:

Manufacturer overview catalogue Electricity meters:

  • ABB
  • ABN
  • Bachmann
  • Berg
  • Eaton
  • Eltako
  • EMU-ELEKTRONIK
  • Finder
  • Fronius
  • GMC-I Messtechnik
  • Hager
  • Hama
  • Janitza
  • Lingg & Janke
  • NZR
  • Schneider Electric
  • Siemens
  • Stiebel Eltron


 
Have you always wanted to know how much energy individual devices in your household consume? This catalog from the eibabo® shop offers you the right measuring instruments for this. Here you can... read more »
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Electricity meter – always keep an eye on the power consumption

Have you always wanted to know how much energy individual devices in your household consume? This catalog from the eibabo® shop offers you the right measuring instruments for this. Here you can get high-quality electricity meters and many other meters at top conditions. In our modern home we use numerous electrical devices. In addition to lamps, washing machines and refrigerators, media technology is a major energy consumer. Televisions, computers, chargers for smartphones and building automation are powered by electrical energy. Although some of these devices also help save electricity, it is interesting to know how much energy they actually use.

What are electricity meters?

Electricity meters are devices for displaying electricity consumption or energy consumption in electrical systems. AC induction meters are predominantly used in households, which directly display the consumed kilowatt hours. To find out how high your energy consumption is in a certain period of time, you need to take two measurements. Subtract the value of the second measurement from the value of the first measurement.

Source: eibabo®, ABB B23 113-100 three-phase meter M-BusImage: ABB B23 113-100 three-phase meter M-Bus

What types of electricity meters are there?

There are two main types of electricity meters. These are used by the utility companies. On the one hand there are the electromechanical meters and on the other hand the so-called intelligent meters or smart meters. If you operate a solar system and feed electricity into the grid, you need a third type of meter, the bidirectional meter. These measure the current drawn and the current fed in. As a rule, you have little influence on the electricity meters that come from your energy supplier. These are installed where the power lines enter your building. This catalog is about electricity meters, which you can also install. This allows the consumption of a specific section of your installation or the consumption of an individual end device to be measured.

How is an electromechanical meter constructed?

Electromechanical induction meters are widely used and can be found in many homes. These contain an electrically conductive, non-magnetic, rotatable 'Ferraris disc'. The disk is driven by the interaction of magnetic fields generated by two electromagnets.

  • Magnet 1 is powered by the current from the incoming power lines
  • Magnet 2 is powered by the current demanded by the building's electrical circuits

 

The rotation of the disk is slowed down by two permanent magnets, which exert a proportional opposing force. The aluminum disc drives a scrolling mechanism that displays kilowatt hours or fractions thereof.

How does a smart meter work?

Electronic electricity meters have been on the market for several years. The current standard for electronic electricity meters are digital electricity meters and so-called smart meters. These work in a similar way to electromechanical electricity meters. Instead of mechanical moving parts, they contain a battery and a communication chip. The chip sends meter readings wirelessly to a collection point. This happens several times a day depending on the time of day. The data is usually transmitted to the electricity supplier every quarter of an hour via power lines, mobile communications or high-frequency networks.

 


Already knew?

The chip is also known as an encoder or ERT device. This uses the same frequency as many cordless phones. However, the device is designed to avoid interference.


 

The battery in the communication chip in digital electricity meters is designed for a service life of 15 to 20 years.

What are the advantages of measuring with an electronic electricity meter?

With an electronic electricity meter, you can not only determine how much energy you use, but also when. At first glance, this may be less important additional information. But knowing exactly when and how much electricity you are using can save you a lot of money. Electricity prices vary throughout the day. When demand is high, electricity costs more than when demand is low. Constantly rising energy costs are leading to deregulation of the electricity markets. In the future, utilities could offer electricity tariffs that bill for the electricity provided based on the time of use. This would be a significantly fairer billing method than the current variant, which is based on average costs.

smart grid

Smart grids are intelligent power networks that take generation, storage and consumption into account. This allows fluctuations in power in the network to be compensated. Networking and coordination is carried out using modern technologies and decentralized energy management systems.


Smart meters can also be read remotely. Utility companies thus save operating costs and working time. Electronic electricity meters are therefore an essential part of the so-called smart grid. The devices help you to question your habits and save money if you use your electricity off-peak. Think of buying an electronic electricity meter as an investment in your future.

How do I find the right electricity meter?

Modern electricity meters can be used to display electricity consumption in real time. Especially in the KNX area, intelligent electricity meters offer many advantages. These support you with load management within your installation and with the monitoring of services and end devices. This saves you money and time because you can make adjustments according to your consumption profile. The use of data loggers or programmable logic controllers makes it easier to display, control, analyze and monitor the data. You can integrate models with a KNX interface directly into your building automation system using Engineering Tool Software (ETS). But which things are still important when buying?

number of phases

When choosing an electricity meter, please consider how many phases are required. The most common models are single-phase or three-phase. If your current system that you are getting your data from is single phase, you will need a single phase electricity meter. If the electrical system is three-phase, use a three-phase electricity meter. As a rule, the devices can be mounted on a DIN rail. The measurement is carried out flexibly for various performance parameters such as:

  • True RMS Voltage (Vrms)
  • True RMS Current (Irms)
  • Active power (kW)
  • Active energy (kWh)
  • Apparent Power (kVA)
  • Apparent energy (kVAh)
  • Reactive Power (kVAR)
  • Reactive energy (kVARh)
  • Power Factor (PF)
  • frequency

 

The devices can be used both on the primary side of the low voltage and on the secondary side of the medium voltage and high voltage.

The amp

Pay attention to how many amps you need for the system. Commonly, smart electricity meters support 60 amps, 100 amps, and 200 amps. The right choice depends on your power system. Using a 100A electricity meter for a system that requires 200A would be impractical.

Bus systems and networks

Intelligent electricity meters communicate via various media and protocols. Please determine in advance which communication protocols will be used. Well-known fieldbus systems are AS-Interface, CAN, CANopen, M-Bus, EtherCAT and others.

 

eibabo - technology store

 

Catalogue content:


In this eibabo® catalogue Meters > Kilowatt-hour meter you will find items from the following product groups:

Item overview:

  • Active consumption meter
  • Active power meter
  • Additional room
  • Bidirectional counter
  • Cable conversion converter
  • Combination counter
  • Combination meter
  • Converter meter
  • Current measuring adapter
  • DIN rail
  • DIN rail counter
  • Direct meter
  • Electricity meter
  • Energy cost meter
  • Energy management
  • Energy meter
  • Heat pump systems
  • Measuring accessories
  • Measuring technology
  • Power factor
  • Power meter plug
  • Single phase meter
  • Spare Parts
  • Tariff meter
  • Three-phase meter
  • Transducer
  • Two-tariff meter
  • Two-wire meter


from the following manufacturers:

Manufacturer overview catalogue Electricity meters:

  • ABB
  • ABN
  • Bachmann
  • Berg
  • Eaton
  • Eltako
  • EMU-ELEKTRONIK
  • Finder
  • Fronius
  • GMC-I Messtechnik
  • Hager
  • Hama
  • Janitza
  • Lingg & Janke
  • NZR
  • Schneider Electric
  • Siemens
  • Stiebel Eltron
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