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  2. Open metering system - Wikipedia

    en.wikipedia.org/wiki/Open_Metering_System

    The open metering system of the Open Metering System Group e.V. stands for a manufacturer- and media-independent standardization for Meter-Bus (M-Bus) based communication between utility meters (electricity, gas, water, thermal energy), submetering (cold/hot water, thermal energy, heat cost allocators), and systems in the field of smart meters.

  3. Electricity meter - Wikipedia

    en.wikipedia.org/wiki/Electricity_meter

    An electricity meter, electric meter, electrical meter, energy meter, or kilowatt-hour meter is a device that measures the amount of electric energy consumed by a residence, a business, or an electrically powered device over a time interval. Electric utilities use electric meters installed at customers' premises for billing and monitoring purposes.

  4. Utility meter - Wikipedia

    en.wikipedia.org/wiki/Utility_meter

    A utility meter is any of the following metering devices used on utility mains: Electricity meter , a device for measuring electricity usage Smart meter , an electrical meter that records consumption of electric energy and communicates information to the utility for monitoring and billing

  5. Mains electricity - Wikipedia

    en.wikipedia.org/wiki/Mains_electricity

    A 50 Hz ±5 Hz vibrating-reed mains frequency meter for 220 V. The world's first public electricity supply was a water wheel driven system constructed in the small English town of Godalming in 1881. It was an alternating current (AC) system using a Siemens alternator supplying power for both street lights and consumers at two voltages, 250 V ...

  6. Electrical measurements - Wikipedia

    en.wikipedia.org/wiki/Electrical_measurements

    Electrical power by the means of electricity meter; S-matrix by the means of network analyzer (electrical) Electrical power spectrum by the means of spectrum analyzer; Measurable dependent electrical quantities comprise: Inductance; Capacitance; Electrical impedance defined as vector sum of electrical resistance and electrical reactance

  7. Meter-Bus - Wikipedia

    en.wikipedia.org/wiki/Meter-Bus

    M-Bus or Meter-Bus is a European standard (EN 13757-2 physical and link layer, EN 13757-3 application layer) for the remote reading of water, gas or electricity meters. M-Bus is also usable for other types of consumption meters, such as heating systems or water meters. The M-Bus interface is made for communication on two wires, making it cost ...

  8. As 2024 comes to a close, the Burj Khalifa still holds the record for world’s tallest building (828 meters or 2,716.5 feet), and throngs gather there to welcome a new year with an amazing ...

  9. Current meter - Wikipedia

    en.wikipedia.org/wiki/Current_meter

    A current meter is an oceanographic device for flow measurement by mechanical, tilt, acoustical or electrical means. Different reference frames