DE2556927A1 - Meter tariff alterations during operation - using power line signalling to change setting depending on system demand - Google Patents

Meter tariff alterations during operation - using power line signalling to change setting depending on system demand

Info

Publication number
DE2556927A1
DE2556927A1 DE19752556927 DE2556927A DE2556927A1 DE 2556927 A1 DE2556927 A1 DE 2556927A1 DE 19752556927 DE19752556927 DE 19752556927 DE 2556927 A DE2556927 A DE 2556927A DE 2556927 A1 DE2556927 A1 DE 2556927A1
Authority
DE
Germany
Prior art keywords
tariff
controlled
during operation
power line
assigned
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
DE19752556927
Other languages
German (de)
Other versions
DE2556927B2 (en
Inventor
Ernst Robert Dipl Ing Paessler
Kurt Dipl Ing Smutny
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
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
Application filed by Siemens AG filed Critical Siemens AG
Priority to DE2556927A priority Critical patent/DE2556927B2/en
Publication of DE2556927A1 publication Critical patent/DE2556927A1/en
Publication of DE2556927B2 publication Critical patent/DE2556927B2/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
    • H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G01R21/133—Arrangements for measuring electric power or power factor by using digital technique
    • G01R21/1333—Arrangements for measuring electric power or power factor by using digital technique adapted for special tariff measuring
    • G01R21/1335—Tariff switching circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00007—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission
    • H02J13/00009—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission using pulsed signals
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/50—The network for supplying or distributing electric power characterised by its spatial reach or by the load for selectively controlling the operation of the loads
    • H02J2310/56—The network for supplying or distributing electric power characterised by its spatial reach or by the load for selectively controlling the operation of the loads characterised by the condition upon which the selective controlling is based
    • H02J2310/62—The condition being non-electrical, e.g. temperature
    • H02J2310/64—The condition being economic, e.g. tariff based load management
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S50/00—Market activities related to the operation of systems integrating technologies related to power network operation or related to communication or information technologies
    • Y04S50/10—Energy trading, including energy flowing from end-user application to grid

Abstract

The watt-hour meter has a receiver and associated control mechanism for changing the tariff rate in response to a signal sent out along the supply lines by the power authority from a central control. The rate can thus be altered at any time when there is a load trough. Where items of equipment are also controlled by a remote signalling system, a unique channel is provided for the watt-hour meter. The equipment can then also be switched in economic blocks independently of the tariff. The system may be extended to indicate the tariff in operation and also the next anticipated alteration depending on the expected power system load contour.

Description

Steueranordnung zur Beeinflussung des Leistungsbezuges derControl arrangement for influencing the power consumption of the

elektrischen Geräte eines Stromabnehmers Elektrische Energie ist nicht direkt speicherfähig, so daß die jeweils benötigte Energie zur gleichen Zeit in den Kraftwerken erzeugt werden muß. Elektrische Kraftwerke, insbesondere Kernkraftwerke, arbeiten am wirtschaftlichsten, wenn die Leistungsabgabe möglichst konstant ist. Dem steht jedoch der stark schwankende Leistungsbedarf während des Verlaufes eines Tages entgegen. Um einen gleichmäßigeren Verlauf des Leistungsbedarfes zu erreichen, ist man schon dazu übergegangen, verschiedene Geräte der Stromabnehmer durch Fernsteuerung zu betätigen, so daß diese Geräte je nach Erfordernis des Verlaufes der Belastungskurve aus- oder eingeschaltet werden können. Dieser Weg ist insbesondere in der Vergangenheit bei der Einführung der Nachtspeicherheizung zur Auffüllung der sogenannten "Nachtlasttäler" erfolgreich beschritten worden. Durch eine solche Fernsteuerung der Nachtspeicherheizgeräte hat man in der Vergangenheit das Problem der Nachtlasttäler nahezu beseitigt. Ein weiteres Problem stellen noch die zu verschiedenen Tageszeiten, insbesondere mittags und abends auftretenden Lastspitzen dar. Diese Lastspitzen können nur beseitigt werden, wenn zu den betreffenden Tageszeiten die Einschaltung solcher Geräte gesperrt wird, die ohne wesentliche Beeinträchtigung des Nutzens und des Komforts des Gerätebetreibers auch zu einer anderen Tageszeit arbeiten können. Solche Geräte sind beispelsweise Waschmaschinen, Wäschetrockner und Geschirrspülmaschinen.electrical devices of a pantograph Electrical energy is not directly storable, so that the energy required in each case in the power plants must be generated. Electric power plants, especially nuclear power plants, work most economically when the power output is as constant as possible. However, this is offset by the strongly fluctuating power requirement during the course of a Against the day. In order to achieve a more uniform course of the power requirement, one has already gone over to remote control of various pantograph devices to operate, so that these devices depending on the requirements of the course of the load curve can be switched off or on. This path is particular in the past with the introduction of night storage heating to fill the so-called "night load valleys" has been successfully trodden. Such a remote control of the night storage heaters In the past, the problem of night load valleys was almost eliminated. A Another problem are those at different times of the day, especially at noon and load peaks occurring in the evening. These load peaks can only be eliminated are blocked if the activation of such devices is blocked at the relevant times of the day without any significant impairment of the utility and convenience of the device operator can work at a different time of the day. Such devices are for example Washing machines, tumble dryers and dishwashers.

Die Steuerung von Nachtspeicherheizgeräten erfolgt über einen zentral angeordneten Rundsteuerempfänger, durch den ein eigenes Versorgungssystem für die Nachtspeicherheizgeräte ein- und ausgeschaltet wird. Über ein weiteres Versorgungssystem, welches nicht der Fernsteuerung unterliegt, werden die übrigen Geräte gespeist. Die Installation von zwei getrennten Versorgungssystemen ist ohne besonderen Aufwand nur bei Neubauten möglich. Eine nachträgliche Umrüstung erfordert dagegen einen sehr hohen Aufwand. Außerdem können bei der Steuerung mittels eines zentral angeordneten Rundsteuerempfängers immer nur alle Geräte aus-oder eingeschaltet werden. Gerätespezifische Bedürfnisse und wechselnde Bedürfnisse des Stromabnehmers können somit nicht berücksichtigt werden1 Dies führt dazu, daß die Anzahl der fernsteuerbaren Geräte relativ klein ist.Night storage heaters are controlled centrally via a arranged ripple control receiver through which its own supply system for the Night storage heater is switched on and off. Via another supply system, which is not subject to remote control, the other devices are fed. The installation of two separate supply systems is without special effort only possible for new buildings. Subsequent retrofitting is required on the other hand, a very high effort. In addition, when controlling by means of a centrally arranged ripple control receiver, only all devices are switched on or off will. Device-specific needs and changing needs of the pantograph can therefore not be taken into account1 This means that the number of remote controllable Device is relatively small.

Der Erfindung liegt die Aufgabe zugrunde, eine Steueranordnung zur Beeinflussung des Leistungsbezugs der elektrischen Geräte eines Stromabnehmers so auszubilden, daß eine wesentlich größere Anzahl von elektrischen Geräten durch Fernsteuerung aus- und eingeschaltet werden kann, ohne daß der Gerätebetreiber wesentliche Einschränkungen hinnehmen muß.The invention is based on the object of a control arrangement for Influencing the power consumption of the electrical devices of a pantograph like this train that a much larger number of electrical devices by remote control can be switched off and on without the device operator having any significant restrictions must accept.

Die Erfindung bezieht sich somit auf eine Steueranordnung gemäß dem Oberbegriff des Patentanspruches 1. Die Lösung der gestellten Aufgabe gelingt durch die im Kennzeichen des Patentanspruches 1 angegebenen Merkmale.The invention thus relates to a control arrangement according to the Preamble of claim 1. The solution to the problem is achieved through the features specified in the characterizing part of claim 1.

Bei der erfindungsgemäßen Lösung sind zusätzliche Rundsteuerempfänger dezentral in den einzelnen Geräten selbst angeordnet.In the solution according to the invention there are additional ripple control receivers arranged decentrally in the individual devices themselves.

Damit besteht für ein Elektrizitätsversorgungsunternehmen (EVU) die Möglichkeit, bestimmte Gerätegruppen je nach Erfordernis der Tagesbelastungskurve aus- oder einzuschalten. Durch den zentral beim KWh-Zähler angeordneten Rundsteuerempfänger wird lediglich an dem Zähler eine Tarifumschaltung vorgenommen. Durch entsprechende Tarifgestaltung hat das EVU auch die Möglichkeit, für den Stromabnehmer einen Anreiz zu schaffen, in lastschwachen Zeiten, in denen der Strom zu einem niederen Tarif zur Verfügung steht, verstärkt Strom zu beziehen oder durch einen besonders hohen Tarif zu Zeiten der Lastspitzen den Stromabnehmer von einem verstärkten Verbrauch abzuhalten.This means that for an electricity supply company (EVU) the Possibility to use certain groups of devices depending on the requirements of the daily load curve off or on. Thanks to the ripple control receiver located centrally at the KWh meter a tariff changeover is only carried out on the meter. Through appropriate The RU also has the option of setting tariffs as an incentive for the electricity consumer to create in times of low load, when the electricity is at a low tariff is available to purchase more electricity or by a particularly high one Tariff at times of peak loads relieves the pantograph from increased consumption to hold.

Bei Geräten mit einem programmierbaren Steuerwerk kann der dem Gerät zugeordnete Rundsteuerempfänger derart mit diesem Steuerwerk zusammenarbeiten, daß beispielsweise dem Steuerwerk über den Rundsteuerempfänger eine Information über den voraussichtlichen Verlauf des Strompreises gegeben wird. Das Gerät wird dann über sein Steuerwerk unter Abstimmung seiner auszuführenden Aufgaben mit der Strompreiskurve zu solchen Zeiten eingeschaltet, daß die Stromkosten für den Verbraucher ein Minimum werden. Da der günstige Strombezugspreis jeweils dann gilt, wenn ein Belastungstal vorhanden ist, werden die Geräte jeweils zu dieser Zeit eingeschaltet und tragen somit zum Abbau der Lastspitzen und zum Auffüllen der Belastungstäler bei. Die Informationen über den Verlauf der Strompreiskurve können von dem EVU als Impulssignale an die Rundsteuerempfänger gesendet werden, die diese Informationen an die programmierbaren Steuerwerke weiterleiten. Derartige Steuerwerke können z.B. aus einem kleinen Rechner bestehen.For devices with a programmable control unit, the device can Associated ripple control receivers work together with this control unit in such a way that for example the control unit the ripple control receiver Information about the likely development of the electricity price is given. That The device is then controlled via its control unit and its tasks to be carried out are coordinated with the electricity price curve switched on at such times that the electricity costs for the consumer will be a minimum. Since the cheap electricity purchase price in each case then applies, if there is a stress valley, the devices become this Time switched on and thus contribute to the reduction of the load peaks and to replenishment the stress valleys. The information about the course of the electricity price curve can be sent by the EVU as pulse signals to the ripple control receiver, which forward this information to the programmable control units. Such Control units can consist of a small computer, for example.

Damit der Gerätebetreiber in Notfällen jederzeit sein Gerät benutzen kann, wird man zweckmäßigerweise eine Möglichkeit zum Aufheben einer durch den Rundsteuerempfänger vorgegebenen Sperre vorsehen.So that the device operator can use his device at all times in emergencies can, one is expediently a way to cancel a through the ripple control receiver provide a predetermined lock.

Die den Geräten zugeordneten Rundsteuerempfänger können zu einem großen Teil ohne Leistungsschalteinrichtungen ausgeführt werden, da in vielen Geräten Schaltschütze vorhanden sind, die die Aufgabe des Aus- und Einschaltens übernehmen können.The ripple control receivers assigned to the devices can become a large Part without power switchgear, since contactors in many devices are available that can take over the task of switching off and on.

Die dezentrale Zuordnung der Rundsteuerempfänger zu den einzelnen Geräten hat weiterhin den Vorteil, daß der Leistungsverbrauch der Erzeugung besser angepaßt werden kann, da die einzelnen Gerätegruppen jeweils für sich gezielt aus- oder eingeschaltet werden können.The decentralized assignment of the ripple control receiver to the individual Devices also has the advantage that the power consumption of the generation is better can be adapted, since the individual device groups are each specifically or can be switched on.

Claims (2)

Patentansprüche Steueranordnung zur Beeinflussung des Leistungsbezuges der - je elektrischen Geräte eines Stromabnehmers, welche Anordnung mindestens einen dem KWh-Zähler des Stromabnehmers zugeordneten Rundsteuerempfänger aufweist, der durch über das Leistungsnetz mit Tonfrequenz gesendete Befehlsimpulse gesteuert ist, dadurch gekennzeichnet, daß der dem KWh-Zähler zugeordnete Rundsteuerempfänger lediglich die Tarifumschaltung am KWh-Zähler bewirkt und die einzelnen elektrischen Geräte jeweils durch einen dem Gerät zugeordneten Rundsteuerempfänger gesteuert sind. Control arrangement for influencing the power consumption the - each electrical device of a pantograph, which arrangement at least one has the KWh counter of the pantograph assigned ripple control receiver, which controlled by command pulses sent over the power network with audio frequency is, characterized in that the ripple control receiver assigned to the KWh counter only the tariff changeover on the KWh counter and the individual electrical ones Devices are each controlled by a ripple control receiver assigned to the device are. 2. Steueranordnung nach Anspruch 1, dadurch gekennzeichnet, daß das Gerät mit einem programmierbaren Steuerwerk versehen ist, dem über den dem Gerät zugeordneten Rundsteuerempfänger Informationen über den zeitlichen Verlauf der Strompreiskurve zugeführt sind. 2. Control arrangement according to claim 1, characterized in that the Device is provided with a programmable control unit, which is controlled by the device assigned ripple control receiver information about the course of the electricity price curve over time are supplied.
DE2556927A 1975-12-17 1975-12-17 Control arrangement for influencing the power consumption of the electrical devices of a pantograph Withdrawn DE2556927B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2556927A DE2556927B2 (en) 1975-12-17 1975-12-17 Control arrangement for influencing the power consumption of the electrical devices of a pantograph

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2556927A DE2556927B2 (en) 1975-12-17 1975-12-17 Control arrangement for influencing the power consumption of the electrical devices of a pantograph

Publications (2)

Publication Number Publication Date
DE2556927A1 true DE2556927A1 (en) 1977-06-30
DE2556927B2 DE2556927B2 (en) 1980-01-03

Family

ID=5964667

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2556927A Withdrawn DE2556927B2 (en) 1975-12-17 1975-12-17 Control arrangement for influencing the power consumption of the electrical devices of a pantograph

Country Status (1)

Country Link
DE (1) DE2556927B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0020310A1 (en) * 1979-05-28 1980-12-10 Arnaldo Spena A remote control direct electric load management system
AU666374B2 (en) * 1992-06-19 1996-02-08 Shortland County Council, The Power saver home automation system
EP1108218A1 (en) * 1999-06-30 2001-06-20 General Electric Company Methods and apparatus for metering energy consumption

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1300220C (en) * 1989-01-10 1992-05-05 Donato Tardio Control of the supply power of energy dissipating loads by means of a transient voltage variation in the network

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0020310A1 (en) * 1979-05-28 1980-12-10 Arnaldo Spena A remote control direct electric load management system
AU666374B2 (en) * 1992-06-19 1996-02-08 Shortland County Council, The Power saver home automation system
EP1108218A1 (en) * 1999-06-30 2001-06-20 General Electric Company Methods and apparatus for metering energy consumption
EP1108218A4 (en) * 1999-06-30 2004-07-28 Gen Electric Methods and apparatus for metering energy consumption

Also Published As

Publication number Publication date
DE2556927B2 (en) 1980-01-03

Similar Documents

Publication Publication Date Title
DE4334488C2 (en) Method and device for reducing the peak load of electrical energy networks and energy generators
DE102011084216A1 (en) Device for controlling electrical charging of electric car in e.g. multi-storey car park, has measuring instrument determining electric power, and control unit controlling certain portion of power such that maximum value is not exceeded
DE2556927A1 (en) Meter tariff alterations during operation - using power line signalling to change setting depending on system demand
DE2419663C3 (en) Device for coordinating and switching the energy requirements of several electrical consumers that work independently of one another
DE3426542C2 (en)
DE4019523C2 (en)
DE2316341A1 (en) PROCESS FOR CONTINUOUSLY DISTRIBUTING ELECTRIC ENERGY
AT410270B (en) DISTRIBUTION SYSTEM
DE102009049644A1 (en) Communication-capable electricity meter for measuring e.g. power consumption from mains power supply, has counter module for analyzing time-variable or load-variable tariffs that are assigned to power consumption and/or power supplies
DE3623478A1 (en) METHOD FOR REGULATING THE ENERGY RELATIONSHIP OF A MULTIPLE CONSUMER
DE19951216B4 (en) Method for controlling a fuel cell assembly
EP1003265A1 (en) Method for energy distribution in a power supply network
DE693514C (en) System for charging batteries from a constant voltage direct current source with an additional machine to achieve the desired charging voltage
EP3477262A1 (en) Method for the load dependent consumption detection for different power sources in the end consumer area
DE917380C (en) Circuit arrangement for the arbitrary additional supply of pantographs with cheaper load compensation current and counting of the same
DE1588439B1 (en) SELECTOR FOR MAXIMUM LOAD MONITORING
DE676799C (en) Network characteristic control of network connections
DE19621333A1 (en) Method and equipment for controlling domestic AC loads
DE102009035399A1 (en) Circuit arrangement for current steering
DE19902997B4 (en) Method and device for influencing the action of an energy optimization system for limiting the electrical power consumption of a plurality of electrical consumers
EP3101749A1 (en) Method for controlling a local power consumer
DE1938728B2 (en) Meter for electrical work with at least one additional counter to record a performance-graded consumption
DE401914C (en) Multiple tariff metering device for electrical measuring devices, in particular self-sellers of electricity
AT128188B (en) Device for measuring the total work of a system with several feed lines.
DE102004025231A1 (en) Hand tool, which receives its operating voltage from a power supply unit

Legal Events

Date Code Title Description
OD Request for examination
8230 Patent withdrawn