WO2015024068A1 - Compteur électrique évolutif - Google Patents

Compteur électrique évolutif Download PDF

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Publication number
WO2015024068A1
WO2015024068A1 PCT/AU2014/000847 AU2014000847W WO2015024068A1 WO 2015024068 A1 WO2015024068 A1 WO 2015024068A1 AU 2014000847 W AU2014000847 W AU 2014000847W WO 2015024068 A1 WO2015024068 A1 WO 2015024068A1
Authority
WO
WIPO (PCT)
Prior art keywords
interface
base unit
expansion
electrical
arrange
Prior art date
Application number
PCT/AU2014/000847
Other languages
English (en)
Inventor
Zheng Zhu
Marcelo DE MARCO
Paul Collins
Justin Clifford MATTHEWS
Marcello Dominic CIRCOSTA
Keith Torpy
Ian Jackson DAVIS
Original Assignee
Landis & Gyr Pty Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from AU2013903218A external-priority patent/AU2013903218A0/en
Application filed by Landis & Gyr Pty Ltd filed Critical Landis & Gyr Pty Ltd
Publication of WO2015024068A1 publication Critical patent/WO2015024068A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
    • G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
    • G01R22/061—Details of electronic electricity meters
    • G01R22/065—Details of electronic electricity meters related to mechanical aspects
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
    • G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
    • G01R22/061—Details of electronic electricity meters
    • G01R22/063—Details of electronic electricity meters related to remote communication

Definitions

  • the present invention relates generally to utility metering systems.
  • Electrical meters are used to determine the quantity of energy used by a consumer site (such as a household or industrial facility) .
  • a consumer site such as a household or industrial facility
  • utility meters have expanded over the last decade.
  • Modern 'smart meters' are capable of communicating with remote monitoring systems (often managed by an electrical
  • the present invention provides an electrical utility meter base unit comprising:
  • a housing having a rear face that mounts to a support structure and an opposing front face with a display unit, metrology circuitry enclosed within the housing that monitors energy exchanged between a consumer site and an electrical distribution network,
  • mains interface that connects the utility meter to a distribution network
  • the mains interface comprising a plurality of input terminals mounted to the base unit and electrically connected to the metrology circuitry
  • the site interface that connects the utility meter to a local site network, the site interface comprising a plurality of output terminals mounted to the base unit and electrically connected to the metrology circuitry,
  • an expansion interface that connects an expansion module to circuitry within the base unit, the expansion interface having an electrical coupling that provides a low impedance connection to an electrical distribution network and a separate data interface that transfers digital data between the base unit and a mounted expansion module, and
  • a mounting interface accessible via the front face of the housing that supports an expansion module
  • mounting interface defining a mounting footprint for expansion modules that is bounded at an upper limit by the display unit, the mounting footprint being unbound forward of the housing.
  • the electrical coupling and the data interface of the expansion interface are spatially separated to reduce electrical interference.
  • the electrical coupling and the data interface of the expansion interface are spatially separated by more than 5cm.
  • the mains interface and the data interface are spatially separated to reduce electrical interference, thermal interference and magnetic
  • the mains interface and the data interface are spatially separated by more than 8cm.
  • an extra-low voltage plate is disposed between the mains interface and the expansion interface .
  • the base unit includes
  • the base unit comprises a high current switch that is electronically controlled by circuitry within the base unit to electrically connect the mains interface with the site interface.
  • the present invention provides a utility meter system comprising:
  • a base unit comprising a housing having a rear face that mounts to a support structure and an opposing front face, metrology circuitry enclosed within the housing that monitors energy exchanged between a consumer site and an electrical distribution network, and an expansion
  • the expansion interface that connects an expansion module to circuitry within the base unit, the expansion interface having an electrical coupling that provides a low impedance
  • each of the expansion modules having a mating surface that seats adjacent the front face of the base unit and an opposing front panel that projects forward of the base unit housing,
  • the expansion modules having dissimilar volume, defined by the distance between the mating surface and front panel.
  • the base unit includes a mounting interface that is accessible via the front face of the housing and supports an expansion module, the mounting interface defining a mounting footprint for expansion modules that is bounded at an upper limit by a display unit mounted within the housing adjacent the front face.
  • a mains interface connects the utility meter to a distribution network, the mains interface comprising a plurality of input terminals mounted to the base unit and electrically connected to the metrology circuitry, and
  • a site interface connects the utility meter to a local site network, the site interface comprising a plurality of output terminals mounted to the base unit and electrically connected to the metrology circuitry,
  • the expansion interface comprises an electrical coupling that provides a low impedance connection to an electrical distribution network and a separate data interface that transfers digital data between the base unit and a mounted expansion module.
  • the electrical coupling and the data interface of the expansion interface are spatially separated to reduce electrical interference.
  • the electrical coupling and the data interface of the expansion interface are spatially separated by more than 5cm.
  • the mains interface and the data interface are spatially separated to reduce electrical interference, thermal interference and magnetic
  • the mains interface and the data interface are spatially separated by more than 8cm.
  • an extra-low voltage plate is disposed between the mains interface and the expansion interface .
  • the base unit comprises a high current switch that is electronically controlled by circuitry within the base unit to electrically connect the mains interface with the site interface.
  • communications circuitry is mounted within the base unit housing that exchanges data with communications networks external to the utility meter.
  • the present invention provides a plurality of expansion modules that are configured to connect electrically to an electrical utility meter base unit via an expansion interface, each of the expansion modules having a mating surface that seats adjacent a front face of the base unit and an opposing front panel that projects forward of the base unit housing when mounted,
  • the expansion modules having dissimilar volume, defined by the distance between the mating surface and front panel.
  • the present invention provides an electrical utility meter base unit comprising:
  • metrology circuitry enclosed within the housing arrange to monitor energy exchanged between a consumer site and an electrical distribution network
  • an expansion interface arrange to connect an
  • the expansion interface having an electrical coupling that provides a low impedance connection to an electrical distribution network and a separate data interface that transfers digital data between the base unit and a mounted expansion module, the mains interface and the data interface are spatially separated to reduce electrical interference, thermal interference and magnetic
  • the present invention provides an electrical utility meter base unit comprising:
  • a housing a housing, metrology circuitry enclosed within the housing arrange to monitor energy exchanged between a consumer site and an electrical distribution network,
  • a mains interface arrange to connect the utility meter to a distribution network
  • an expansion interface arrange to connect an
  • the expansion interface having an electrical coupling that provides a low impedance connection to an electrical distribution network and a separate data interface that transfers digital data between the base unit and a mounted expansion module, and
  • mains interface and the data interface are spatially separated to reduce electrical interference, thermal interference and magnetic interference.
  • the present invention provides an electrical utility meter base unit comprising:
  • metrology circuitry enclosed within the housing arrange to monitor energy exchanged between a consumer site and an electrical distribution network
  • an expansion interface arrange to connect an
  • the expansion interface having an electrical coupling that provides a low impedance connection to an electrical distribution network and a separate data interface that transfers digital data between the base unit and a mounted expansion module, and
  • Figure la is a perspective view of a utility meter comprising a base unit and an expansion module.
  • Figure lb is a front elevation of the utility meter depicted in Figure la.
  • Figure lc is a side elevation of the utility meter depicted in Figures la and lb.
  • Figure 2a is a perspective view of utility meter base unit illustrated in Figures la to lc.
  • Figure 2b is a front elevation of the utility meter base unit depicted in Figure 2a.
  • Figure 2c is a side elevation of the utility meter base unit depicted in Figures 2a and 2b.
  • Figure 3a is a front elevation of the utility meter depicted in Figures la to lc with the terminal cover removed to expose the expansion module interface.
  • Figure 3b is an exploded view of the expansion module interface disposed depicted in Figure 3a.
  • Figure 4 is a front elevation of the utility meter base unit depicted in Figures 2a to 2c with the terminal cover and extra-low voltage plate removed.
  • Figure 5 is a perspective view of the utility meter depicted in Figures la to lc with an alternate terminal cover .
  • FIG. 6 is a schematic diagram of a communications network topology including multiple utility meters. Detailed description of the invention
  • the meter comprises a base unit with a mounting interface for an expansion module.
  • the base unit incorporates metrology circuitry for metering the energy exchanged between a consumer site and an electrical distribution network. It may also incorporate communications circuitry for exchanging data with communications networks external to the utility meter.
  • the meter may be customised for particular applications by mounting an expansion module with additional capabilities.
  • the mounting interface for expansion modules is disposed at the front of the base unit. The mounting interface is accessible via a front face of the housing to reduce obstructions (such as adjacent meters or wiring mounted within a shared electrical panel) .
  • the depth of module that can be mounted to the base unit is not
  • the electrical utility meter may be mounted on its own, but in a utility panel which provides
  • the base unit has an expansion module interface that directly connects a module to the AC mains supply from the distribution network. Receiving AC voltage from the mains supply enables the expansion module to monitor
  • Extension modules may be used to expand the metering capabilities of the base unit (by functioning as a
  • the expansion module may also facilitate networking between compatible utility meters installed in close proximity.
  • Utility meters can be organised in 'Floor Local Area Networks' (FLAN's) to reduce communications traffic in some situations (such as high density residential buildings) .
  • FLAN's Fluor Local Area Networks'
  • a designated 'master' meter manages
  • FIG. la to lc An embodiment of the expandable electrical utility meter is illustrated in Figures la to lc.
  • the illustrated meter 1 is arranged to be electrically connected between an electrical distribution network (the mains supply) and a consumer site. Electrical energy is typically
  • the illustrated meter 1 has metrology circuitry, in this example a metrology module, that monitors the energy transfer between the consumer site and the electrical distribution network.
  • the electrical utility meter 1 comprises a base unit
  • the base unit 10 performs primary metering functionality and is capable of installation without the expansion module 30.
  • the circuitry comprising the
  • the metrology module is integrated with the base unit 10 in the illustrated embodiment.
  • the expansion module 30 is a removable component that extends the base units functionality.
  • the base module 10 includes an expansion mount that receives the expansion module 30.
  • the expansion mount is disposed at the front of the base unit 10 so that the depth dimension of the expansion module 30 is not restricted (i.e. the amount that the expansion module 30 extends from the front of the base unit 10) .
  • illustrated base unit 10 and expansion module 30 have compatible electrical interfaces that enable the
  • the base module 10 has a mains interface 53 (shown in Figure 4) where wiring from the electrical distribution network is terminated.
  • the illustrated mains interface 53 comprises a plurality of high voltage terminals 54.
  • the terminals 54 are electrically connected to the metrology circuitry.
  • a site interface (not shown in the figures) connects the utility meter to a local site network.
  • the site interface generally comprises a plurality of output terminals mounted to the base unit and electrically connected to the metrology circuitry.
  • a high current switch electrically connects the mains interface 53 with the site interface. The high current switch is
  • circuitry within the base unit typically a microcontroller or similar processing unit to make and/or break electrical connections with an expansion module.
  • the expansion module 30 derives AC power directly from the mains supply (i.e. the base unit does no rectify or regulate the power supplied to the module) through the base unit 10. This enables the expansion module 30 to monitor parameters of the electrical distribution network (such as neutral phase function) and utilise the supply lines for communication with the electrical utility (using 'power line communications' ) .
  • the expansion module 30 may include a dedicated rectifier and/or regulator circuitry to process the electrical supply received from the
  • the expansion module 30 is segregated from the mains interface 53 by an extra-low voltage (ELV) plate 45 in the illustrated embodiment (shown in Figure 3a) .
  • the extra-low voltage plate 45 shields consumers/technicians from the high voltage terminals 54 where the mains supply is terminated.
  • the base module 10 and expansion module 30 are typically both installed (terminated) by a qualified technician because both components are powered directly from the mains supply.
  • the mains interface and the data interface (the data connection between the expansion interface and an
  • the distance between the respective interfaces is typically between 2cm and 10cm, although this may be restricted by the form factor and layout of the base unit 10. Ideally, the interfaces are separated by more than 2cm, and preferably more than 5cm.
  • the approximate spacing of the electrical and data connectors may be (rounded to the nearest centimetre) 2cm, 3cm, 4cm, 5cm, 6cm, 7cm, 8cm, 9cm, 10cm.
  • the illustrated base unit 10 comprises a housing 11 that encloses the metrology circuitry.
  • the housing has a rear face that sits adjacent a support structure (such as an electrical panel where the utility meter 1 is mounted) and an opposing front face that is accessible when the meter 1 is mounted.
  • a removable terminal cover 14, 16, 17 mounts to the underside of the base unit to enclose the mains interface 53.
  • the terminal cover 14, 16, 17 is accessible via the front face of the housing 11 to facilitate access to the utility meter wiring after installation.
  • the configuration of the terminal cover 14, 16, 17 may be altered to reflect the configuration of the utility meter 1 (as illustrated in Figures la, 2a and 5)
  • the utility meter 1 is illustrated in Figures 3a and 4 with the terminal cover 14, 16, 17 removed.
  • the base unit housing 11 incorporates an interface panel 27 disposed at the front of the meter 1 above the extension mount. The interface panel facilitates
  • the illustrated interface panel includes an optical port 20 (such as an infra-red
  • buttons 21 buttons 21, a display unit 22 (such as an LCD interface) and a dedicated user interface 23.
  • the illustrated base unit 10 is mounted to a
  • the illustrated mounting supports 13 receives a mechanical fastener (such as screws, nails or bolts) .
  • a mechanical fastener such as screws, nails or bolts
  • Other mounting arrangements such as sliding dovetail joints and rails may also be used.
  • the base unit 10 has a rear face 15 with a mounting surface that is disposed adjacent the support when the meter 1 is
  • the mounting surface typically sits flush with a support surface (such as a wall or backing surface of a panel) .
  • the base unit 10 includes an expansion interface 50 that electrically connects a removable expansion module 30 to circuitry within the base unit 10.
  • the illustrated expansion interface 50 has an electrical coupling that provides a low impedance connection to an electrical distribution network .
  • An expansion module may also use the electrical coupling to send and/or received AC signals via the electrical distribution network and enhance the metrology function of the electrical utility meter.
  • a separate data interface transfers digital data between the base unit and a mounted expansion module.
  • a mounting interface secures removable expansion modules to the base unit 10.
  • the mounting interface is accessible via the front face of the housing 11. This enables installation and removal of expansion modules without dismounting the base unit or interfering with the mains interface 53 or base unit.
  • the mounting interface defines a mounting footprint 55 for expansion modules.
  • the mounting footprint 55 is generally bounded at an upper limit by the display unit 22.
  • the base unit housing 11 also influences the form-factor of the expansion module mounting footprint.
  • the mounting footprint is typically contained within the overall footprint of the base unit 10 so that adjacent utility meters and space constrains within an electrical panel do not restrict expansion module installation.
  • the base unit 10 does not restrict the mounting footprint forward of the housing 11 (i.e. the mounting footprint is unbound forward of the housing 11).
  • the process for mounting an expansion module to the utility meter 1 depicted in Figure 4 comprises:
  • expansion module engage with tulip connectors in the base meter to form the electrical connection.
  • a lip 56 disposed adjacent the top of the mounting interface footprint 55, and two fastening tabs disposed on either side of the mounting interface (not shown in the Figures) secure the expansion module adjacent the front face of the base unit 10.
  • the fastening tabs engage with a reciprocal L-shaped tracks on the sides of the expansion module.
  • the base unit and expansion module are usually x sealed' after installation.
  • the seal provides a visual tamper indication. Electrical utilities often use a wire with crimped metal tab or a single use plastic locking tab to seal utility meters.
  • the disclosed mounting interface supports expansion modules adjacent the front face of the base unit housing 11 away from the mains interfaces 53.
  • the advantages of this mounting configuration include:
  • ⁇ meters can be shipped with modules already attached
  • the distance between the mains interface 53 and the expansion interface 50 reduces the likelihood of electrically coupled radiated noise interfering with devices on the mains circuit
  • the distance between the mains interface 53 and the mounting interface 50 reduces the effects of nearby metal work that can degrade the performance of antennas and magnetic devices in sensitive radio circuitry (the position of the mounting interface enables the development consistent magnetic
  • the illustrated expansion interface 50 has an
  • the electrical coupling 51 that draws power from the mains connection 53 (active and neutral) and a separate data interface 52 (serial connector) .
  • the electrical coupling 51 and data interface 52 are disposed adjacent diagonally opposed corners of the expansion interface. This maximises spatial separation for a given expansion module footprint 55.
  • the expansion interface 50 provides a low impedance connection to the electrical distribution network.
  • the electrical coupling is also capable of facilitating mains coupled signalling (with power line carriers) .
  • the data interface 52 establishes a communications link between the base unit 10 and the expansion module 30.
  • the mains coupling and data interface 57 a spatially separated to reduce electrical interference. They are typically disposed adjacent diagonally opposed corners of the expansion interface. This maximises spatial separation for a given expansion module footprint 55.
  • the distance between the electrical coupling and the data interface ranges between 2cm and 12cm, but is often restricted to less than 10cm to comply with the form-factor of the expansion interface. Ideally, the spacing between the respective interfaces is greater than 5cm, and preferably greater than 8cm. The approximate spacing of the
  • the expansion interface 50 is disposed adjacent the front face of the base unit housing (the illustrated interface 50 is covered by terminal cover in Figures 2a to 2c) . This simplifies expansion module installation.
  • the expansion interface 50 is accessible via the front face of the base unit 10 to allow expansion modules to be mounted without interfering with the mains interface 53 wiring or base unit 10 mounting supports 13.
  • the base unit housing 11 does not restrict the size of expansion module in a direction extending generally perpendicular to the rear face 15 and mounting surface.
  • the base unit 10 may be compatible with a plurality of expansion modules 30 that perform different functions. This enables the functionality of the utility meter 1 to be customised to reflect the demands of a consumer site.
  • the positioning of the expansion interface 50 (at the front of the base unit 10) and configuration of the base unit housing 11 establish a flexible form-factor that accommodates modules with dissimilar depth dimensions (as depicted in Figure lc) .
  • the depth of the expansion module 30 may be restricted to 150mm from the front surface of the base unit 10 in some circumstances to conform to the space constraints of some electrical panels.
  • the expansion module 30 may include a module
  • the illustrated module interface 40 is depicted in Figure 3b.
  • the illustrated module interface 40 comprises a RJ45 port 44, screw terminals 43, a USB port 42 and SMA connector 41.
  • the base unit 10 may incorporate communications circuitry to facilitate data exchanges via a
  • FIG. 6 illustrates several utility meters 1 interconnected by a communications network.
  • the illustrated utility meters 1 have a wireless communications interface that facilitates the exchange of data with other devices connected to the network.
  • the data network depicted in Figure 6 is a radio mesh network 69.
  • the radio mesh network 69 facilitates the exchange of data between the illustrated utility meters 1.
  • a gateway device 68 exchanges data between the radio mesh network 69 and an external data network, such as the internet 65.
  • a head end system 67 communicates with the utility meters 1 via the gateway device 68.
  • the head end system 67 collects data from the utility meters 1. It may also configure and/or regulate operation of devices (such as the utility meters 1 or gateway device 68) within the radio mesh network 69.
  • the head end system 67 communicates with device connected to the radio mesh network 67 via an auxiliary data network 65 (such as the internet) through the gateway device 68.
  • the communications circuitry (usually a wireless communications module) is optionally integrated with a printed circuit board (PCB) within the base unit 10.
  • PCB printed circuit board
  • Typical wireless communications circuitry incorporates an integrated circuit transceiver, oscillator, filter and several passive components (inductors, capacitors,
  • the transceiver is usually connected to a base unit controller (such as a microcontroller or similar processing unit) via a standard system bus (such as an SPI bus and/or UART) .
  • the communications circuitry may be controlled by the base unit controller or an independent communications control system.
  • the communication circuitry may be integrated with a master printed circuit board (PCB) within the base unit 10 or contained on a slave printed circuit board (PCB) that connects to the master board.
  • Communications firmware updates may generally managed via the base unit
  • the communications circuitry illustrated in Figure 6 operates on radio networks (such as the unlicensed 900MHz Australian ISM network.
  • This network supports industrial, scientific and medical devices in the 915MHz-928MHz frequency band. Output power is limited to approximately 25mW on this band. Operation on different bands and at different output power ratings is possible. This is achieved by using alternate filtering and passive
  • Wireless communications circuitry may be compliant with IEEE standard 802.15.4g (Low-Rate Wireless Personal Area Networks) .
  • the upper layers of the communications stack defined by IEEE standard 802.15.4g are executed by in firmware (either within a base unit controller or dedicated communications controller) . This enables the utility meters 1 to exchange data packets with other 802.15.4g complaint devices.
  • the communications circuitry may implement alternate standards, such as discarding upper layers of the
  • the utility meters 1 depicted in Figure 6 exchange data with a head end system 67. The is facilitated by wireless communications circuitry within the base unit 10 of each illustrated utility meter 1.
  • communications routes may be used to link the meters 1 and head end system 67.
  • the illustrated meters 1 connect to a gateway device 68.
  • This connection may be direct (i.e. meter 1 to gateway device 68) or via other devices.
  • an individual meter 1 may link through other local meter to access the gateway device 68 (such as a master meter 1 installed on each floor of a high density residential installation) .
  • the head end system 67 manages a population of utility meters 1.
  • the head end system 67 typically stores asynchronously received meter data, backups meter data, generates billing information, issues commands to

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

L'invention concerne une unité de base compteur électrique. L'unité de base présente une interface évolutive connectant un module évolutif amovible à un ensemble de circuit dans l'unité de base. L'interface évolutive présente un raccordement électrique qui permet un raccordement à faible impédance à un réseau de distribution électrique et une interface de données séparée qui transfert des données numériques entre l'unité de base et le module d'expansion.
PCT/AU2014/000847 2013-08-23 2014-08-25 Compteur électrique évolutif WO2015024068A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2013903218A AU2013903218A0 (en) 2013-08-23 Expandable utility meter
AU2013903218 2013-08-23

Publications (1)

Publication Number Publication Date
WO2015024068A1 true WO2015024068A1 (fr) 2015-02-26

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ID=52482844

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2014/000847 WO2015024068A1 (fr) 2013-08-23 2014-08-25 Compteur électrique évolutif

Country Status (1)

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WO (1) WO2015024068A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150241480A1 (en) * 2012-09-28 2015-08-27 Schneider Electric USA, Inc. Power meter configured for rear and side expansion
EP3739346A1 (fr) * 2019-05-14 2020-11-18 Landis+Gyr AG Module de contrôle de charge pour un compteur de services et agencement de compteur le comprenant
JP2022009277A (ja) * 2017-09-07 2022-01-14 パナソニックＩｐマネジメント株式会社 計測ユニット、増設ユニット、計測システム及び分電盤システム
US11250523B2 (en) * 2019-07-26 2022-02-15 Chicony Power Technology Co., Ltd. Expandable combination electric meter

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2295683A (en) * 1994-12-03 1996-06-05 Siemens Measurements Ltd Improvements in or relating to electricity meters
US6275168B1 (en) * 1997-05-23 2001-08-14 Siemens Power Transmission And Distribution, Llc Expansion module for modular meter
US20030098683A1 (en) * 2000-04-13 2003-05-29 Genescape, Inc. Apparatus and method for the measurement and monitoring of electrical power generation and transmission
US20080284614A1 (en) * 2007-05-16 2008-11-20 Square D Company Modular power monitoring system
GB2461348A (en) * 2008-07-04 2010-01-06 Remote Energy Monitoring Holdi Configurable smart meter module
US20120044643A1 (en) * 2010-08-18 2012-02-23 General Electric Company Heat management and reduction of high temperatures exposure to components inside energy meter

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2295683A (en) * 1994-12-03 1996-06-05 Siemens Measurements Ltd Improvements in or relating to electricity meters
US6275168B1 (en) * 1997-05-23 2001-08-14 Siemens Power Transmission And Distribution, Llc Expansion module for modular meter
US20030098683A1 (en) * 2000-04-13 2003-05-29 Genescape, Inc. Apparatus and method for the measurement and monitoring of electrical power generation and transmission
US20080284614A1 (en) * 2007-05-16 2008-11-20 Square D Company Modular power monitoring system
GB2461348A (en) * 2008-07-04 2010-01-06 Remote Energy Monitoring Holdi Configurable smart meter module
US20120044643A1 (en) * 2010-08-18 2012-02-23 General Electric Company Heat management and reduction of high temperatures exposure to components inside energy meter

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150241480A1 (en) * 2012-09-28 2015-08-27 Schneider Electric USA, Inc. Power meter configured for rear and side expansion
US9632112B2 (en) * 2012-09-28 2017-04-25 Schneider Electric USA, Inc. Power meter configured for rear and side expansion
JP2022009277A (ja) * 2017-09-07 2022-01-14 パナソニックＩｐマネジメント株式会社 計測ユニット、増設ユニット、計測システム及び分電盤システム
JP7340819B2 (ja) 2017-09-07 2023-09-08 パナソニックＩｐマネジメント株式会社 計測ユニット、増設ユニット、計測システム及び分電盤システム
EP3739346A1 (fr) * 2019-05-14 2020-11-18 Landis+Gyr AG Module de contrôle de charge pour un compteur de services et agencement de compteur le comprenant
US11250523B2 (en) * 2019-07-26 2022-02-15 Chicony Power Technology Co., Ltd. Expandable combination electric meter

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