EP1981055A1 - Commutateur d'installation et système de compteur de courant - Google Patents

Commutateur d'installation et système de compteur de courant Download PDF

Info

Publication number
EP1981055A1
EP1981055A1 EP08007177A EP08007177A EP1981055A1 EP 1981055 A1 EP1981055 A1 EP 1981055A1 EP 08007177 A EP08007177 A EP 08007177A EP 08007177 A EP08007177 A EP 08007177A EP 1981055 A1 EP1981055 A1 EP 1981055A1
Authority
EP
European Patent Office
Prior art keywords
current
main
installation switch
switch
electricity meter
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Withdrawn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
EP08007177A
Other languages
German (de)
English (en)
Inventor
Klaus-Peter Dipl.-Ing. Eppe
Bernd Dipl.-Ing. Siedelhofer
Joachim Dipl.-Ing. Becker
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.)
ABB AG Germany
Original Assignee
ABB AG Germany
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 DE102008017932A external-priority patent/DE102008017932A1/de
Application filed by ABB AG Germany filed Critical ABB AG Germany
Publication of EP1981055A1 publication Critical patent/EP1981055A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/1081—Modifications for selective or back-up protection; Correlation between feeder and branch circuit breaker
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/74—Means for adjusting the conditions under which the device will function to provide protection

Definitions

  • the invention relates to an installation switch, comprising at least one main contact point and a switching mechanism which permanently opens at least the main contact point in the unlatched state, which at least switches off a main current path flowing through the main contact point during normal operation, if the current flow is greater than the rated current for a longer time the installation switch is designed according to the preamble of claim 1.
  • the invention further relates to an electricity meter system with an electronic electricity meter and a generic installation switch.
  • a generic installation switch may be a circuit breaker, in particular a selective main circuit breaker having a main current path with a main contact point and a main bimetal and a Maustrom path with at least one current limiting resistor and a selective bimetal, and a rear derailleur with a Verklinkungsstelle which in Entklinktem state a permanent interruption of Current flow through the main circuit breaker causes comprises.
  • the circuit breaker switches off the main current path when the current flow is moderately greater than the rated current for a longer period of time, or if a short-circuit current that is several times higher than the rated current occurs for a short time.
  • Selective main circuit breakers also referred to as SH switches for short
  • SH switches are known in principle. They are used in an electricity meter system in front of the counter in the meter box of an electrical home installation system, and thus in front of the distribution board of a domestic installation. Its purpose is to selectively switch the power supply to all downstream circuits when a short circuit occurs in one of the downstream circuits. Selective switching means time-delayed switching.
  • An SH-switch is provided with a time delay, whereby it does not switch off immediately in a short-circuit current in one of the downstream circuits, but only after a certain delay time. A distinction is made between voltage-independent and voltage-dependent SH-switches.
  • the selectivity is achieved in that the current is redirected when a short-circuit current first due to the opening of a so-called main contact point in the current path from the main current path to a parallel Crowstrompfad and thereby limited by a so-called selective resistance.
  • a time-delayed interruption element usually a bimetallic strip, often called a selective bimetal.
  • a trigger with a long delay which in a known manner upon occurrence of a long time applied overload current in the main current path so farellegt that also a coupling with the trigger element of the switching mechanism is effected, causing in the locking mechanism solved the latch and thereby also the auxiliary contact point and the main contact point is permanently opened, whereby then the current path between the input and output terminals is completely interrupted.
  • Such a SH switch is for example from the DE 102 61 994 A1 known and its functional scheme described there.
  • the RU usually blocks the power supply completely after several unsuccessful reminders by interrupting the connection to the building installation in the meter and sealing the meter.
  • this procedure is laborious because personnel must be sent to the point of consumption.
  • An alternative for the RU, in the sense of a graded sanctioning escalation strategy, would be to first limit the electricity supply of the defaulting payer to a low base supply current, for example 2 A.
  • a basic supply for example for refrigerator, oil or gas Gas burners, and emergency lighting is ensured, beyond consumers such as electric stove, bright lighting, computers, TVs, etc., however, can no longer be operated.
  • Such a reduction to a basic supply could be carried out already after the first unsuccessful reminder, at an earlier point in time than today's usual full closure of the supply.
  • a second interface address to be administered would be added to the EVU for each meter location, since the meter itself, if it is a modern electronic electricity meter, is often already connected to a central control center of the RU via a first data interface that can be addressed by the EVU.
  • the installation switch is additionally set up for a mode of base power shutdown, in which the shutdown already takes place upon reaching a base current, which is lower than the rated current of the switch.
  • a generic installation switch is modified such that, in addition to the short-circuit current and the overload current cut-off, a further disconnection state, the so-called base-current disconnection, is made possible.
  • the installation switch includes a controllable switching device, which causes the short-circuit or overcurrent tripping case corresponding state of the circuit breaker already at the base current strength, so that thereby the switching mechanism already merges with the lower base current strength in the unlatched state.
  • the invention provides that the drive signal for the switching device or the electronic Trigger of the installation switch is supplied by the electronic electricity meter from the installation switch.
  • FIG. 1 shows the circuit diagram of a main circuit breaker according to the invention, which is set up for a base current limit.
  • a main current path 18 Between a Eingansklemme 10 and an output terminal 8 extends in the device, a main current path 18.
  • a main bimetallic strip 36 In the main current path 18 are a main bimetallic strip 36, a main contact point 11, a separation pad 19 and a magnetic impact armature system 40.
  • Parallel to the main contact point 11, a secondary current path 15 extends with a selective thermal bimetal 20 and a current limiting resistor 16, also called selective resistance.
  • the main bimetallic strip 36 and the selective bimetallic strip 20 cooperate with a switching mechanism 21 along lines of action 25, 24.
  • the rear derailleur 21 acts mechanically along lines of action 23, 27 on the MauWallettatelle 19 and the main contact point eleventh
  • the impact armature system 40 will strike the main contact point 11 along the line of action 41. Along a line of action 42, the impact armature system 40 also acts on the rear derailleur 21, which then keeps the main contact point 11 open along the line of action 27. The current flow then commutates to the secondary current path 15. If the selective bimetal 20 has heated so far due to the current flow limited by the current limiting resistor 16 that it assumes its trip position, it acts along the line of action 24 on the rear derailleur 21, so that this along the Wirkline 23 and the auxiliary contact point 19 opens and keeps open. The current flow through the device is then completely switched off. Only when the rear derailleur 21 is reset manually, a reconnection of the main and secondary contact point can be done.
  • a base current bimetal 361 is provided. Between the input terminal 10 and the parallel connection of the two thermostatic bimetals 36, 361, a switching device 43 is connected. This can be controlled by a signal line 44 and switches the main current path 18 either via the main bimetallic strip 36 or via the base current bimetal 361.
  • the base-current bimetal 361 is dimensioned so that it at a predetermined base current, for example, 2A, which is lower than the rated current, so far deflects that it along a line of action 26 cooperates with the switching mechanism 21, that operates the rear derailleur becomes. In this way, so to speak, the thermal overcurrent tripping forcibly at a lower base current, so brought about faster. From a main line circuit breaker, which is normally designed, for example, for a rated current of 63 A, by switching the main current path to the base current bimetal forcibly a main circuit breaker with a much lower rated current, for example, only 2 A.
  • the operation of the rear derailleur has the consequence that the Verklinkungsstelle unlatched in the rear derailleur and the main and auxiliary contact points 11, 19 are opened and kept open. As a result, a permanent interruption of the current flow through the main circuit breaker is achieved.
  • the inventive concept is also applicable to non-selective circuit breaker, which have no side circuit.
  • the base-current bimetal 361 is dimensioned to have a short delay time. Through the switching device 43, the main current path between the main bimetal and the base current bimetal is switched.
  • the switching device 43 causes a bridging of the current limiting resistor 16 when it is acted upon by the signal line 44 to activate the base current cutoff with a corresponding control signal. This ensures that in the state of the base current shutdown, a portion of the total current flows through the bypass circuit even in normal operation, since the current limit is bridged in the secondary circuit.
  • the delay time for the selective bimetal is shortened considerably. It is designed so that it is bridged Current limiting resistor has reached the deflection already at the predetermined base current, it requires to operate along the line of action 20, the derailleur and to open the sub-contact point.
  • the state of the selective triggering is thus forcibly brought about by the switching.
  • the inventive concept is valid for all conceivable embodiments of selective main circuit breakers. It does not matter how exactly the switching concept of the main line circuit breaker looks exactly.
  • FIG. 4 shows an embodiment of a power meter system 100 in a building, with a main circuit breaker 102 and an electronic power meter 104. Both lie between the house connection point 106 and the outlet 108 to the distribution box, in which the distribution to the individual circuits of the building.
  • a current sensor 110 a measured value and processing module 112 and a communication interface 114, wherein the communication interface 114 interacts with a remote monitoring station, for example at the RU, via a meter communication link 116.
  • the signal line 44 which causes the drive signal for switching the main circuit breaker to the base current operation, is here derived from the communication interface 114 of the electricity meter 104.
  • the drive signal can be transmitted from the remote monitoring station 118 to the main circuit breaker 102 via the communication interface 114 of the electricity meter system, for example.
  • Electronic electricity meters sometimes already have a bidirectional communication interface which can be addressed directly and individually by a central control unit of the RU and via which the meter reading can be read, various tariff groups entered or even configuration and diagnostic signals can be exchanged. Communication between the RU and the electricity meter is done via a telecontrol connection or directly via the power grid itself. This is also referred to as so-called. Powerline - communication.
  • a bidirectional communication interface which can be addressed directly and individually by a central control unit of the RU and via which the meter reading can be read, various tariff groups entered or even configuration and diagnostic signals can be exchanged.
  • Communication between the RU and the electricity meter is done via a telecontrol connection or directly via the power grid itself. This is also referred to as so-called. Powerline - communication.
  • the main circuit breaker 102 may be constructed in a functional manner as already described elsewhere in this application.
  • its derailleur 21 is shown schematically and a functional block, designated by the reference numeral 120, which includes all other components and subsystems necessary for operating a main circuit breaker according to the invention, as described above.
  • FIG. 5 there is shown an electricity meter system including a main circuit breaker 102, which in a power converter assembly 46 includes a current sensor 47, an electronic trip unit 48, and a communication interface 50, see also Fig. 3 ,
  • the electronic power meter 104 may be used as a current sensor for the purpose of initiating the base power shutdown.
  • the power meter 104 determines that the instantaneous power consumption exceeds the allowable base current, it will send the switch signal to the switching device 44 or the power converter assembly 46 in the circuit breaker 102 via the communication interface 114, and the circuit breaker 102 will then switch to one of those described above Variants in the base power shutdown to.
  • the power meter 104 may also be requested by the remote monitoring station 118 to send the toggle signal to the switching device 44 and the power converter assembly 46, respectively.
  • the switching device 44 comprises in the simplest case a simple I / O interface, the switching signal may be a simple binary signal.
  • the advantage is that no complex communication interfaces are needed to transfer larger amounts of data.
  • the communication between The circuit breaker 102 and the electronic power meter 104 and the control center 118 of the RU can be very simple.
  • a more complex communication interface 50 or data interface in the circuit breaker 102 may be provided, which allows communication via a standardized or a proprietary communication protocol between the electronic meter 104 and / or the control center 118 and the circuit breaker 102.
  • the communication between the communication interface 114 and the circuit breaker 102 may also be wireless, for example, using Bluetooth technology if appropriate wireless communication interfaces are incorporated. Since the communication interface 114 and the circuit breaker 102 are arranged spatially close to each other in the meter box, communication based on wireless near-field communication technology, for example, according to ISO 18092, 21481 ECMA 340, 352, 356, 362 and ETSI TS 102 190, respectively be.
  • the circuit breaker includes its own current sensor 47 and an electronic trigger 48 within a power converter assembly 46. From the electricity meter, the circuit breaker gets only the Midler that he should go into the base current limiting mode. If the current sensor 47 in the circuit breaker now detects an exceeding of the base current, it causes the electronic release 48 directly to act on the rear derailleur, along a line of action 45 and without a detour via a bimetal. Thus, as it were, both the thermal overload case and the selective short-circuit case are brought about.
  • An electronic trigger 48 may be realized with the aid of a piezoelectric element, or be constructed similar to a relay; in the latter case, for example, the relay armature would operate the release lever of the derailleur.
  • An even simpler variant provides that the current sensor of the electricity meter is used to detect whether the permitted base current value has been exceeded is, and the circuit breaker only includes an electronic trigger and optionally a communication interface.
  • the standard customer can turn the SH switch back on, and the base current can be obtained from the tariff customer.
  • the SH-switch is built so that reconnection is only possible by authorized personnel. Ways to achieve this are known in principle, see for example the DE 10 2004 019 174 A1 ,
  • an inventive installation switch can also be constructed on the basis of a modified non-selective circuit breaker or a motor protection switch or a contactor.

Landscapes

  • Breakers (AREA)
EP08007177A 2007-04-13 2008-04-11 Commutateur d'installation et système de compteur de courant Withdrawn EP1981055A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007017920 2007-04-13
DE102008017932A DE102008017932A1 (de) 2007-04-13 2008-04-08 Installationsschalter und Stromzählersystem

Publications (1)

Publication Number Publication Date
EP1981055A1 true EP1981055A1 (fr) 2008-10-15

Family

ID=39540678

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08007177A Withdrawn EP1981055A1 (fr) 2007-04-13 2008-04-11 Commutateur d'installation et système de compteur de courant

Country Status (1)

Country Link
EP (1) EP1981055A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2294573A1 (fr) * 1974-12-12 1976-07-09 Anvar Systeme de delestage visant a diminuer la puissance electrique souscrite par un abonne a un reseau electrique
EP0222688A2 (fr) * 1985-11-08 1987-05-20 Siemens Aktiengesellschaft Dispositif pour la modification télécommandée de valeurs de déclenchement d'un appareil de coupure et procédé pour le rajustage d'un appareil de coupure
DE3926644A1 (de) * 1989-08-11 1991-02-14 Muenster Stadtwerke Ferngesteuerte schaltvorrichtung
FR2714459A1 (fr) * 1993-12-23 1995-06-30 Schlumberger Ind Sa Système de compteurs dépendants.
DE10261994A1 (de) 2002-01-30 2004-02-05 Abb Patent Gmbh Selektivschutzschalter und Verfahren zur selektiven Kurzschlussstromabschaltung
DE102004019174A1 (de) 2004-04-16 2005-11-17 Abb Patent Gmbh Verriegelungsvorrichtung für ein Installationsschaltgerät
DE102005028149A1 (de) 2005-06-17 2006-12-28 Geyer Ag Selektiver Haupt-Leitungsschutzschalter
DE102006055322A1 (de) 2006-08-18 2008-02-21 Abb Patent Gmbh Stromzählersystem

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2294573A1 (fr) * 1974-12-12 1976-07-09 Anvar Systeme de delestage visant a diminuer la puissance electrique souscrite par un abonne a un reseau electrique
EP0222688A2 (fr) * 1985-11-08 1987-05-20 Siemens Aktiengesellschaft Dispositif pour la modification télécommandée de valeurs de déclenchement d'un appareil de coupure et procédé pour le rajustage d'un appareil de coupure
DE3926644A1 (de) * 1989-08-11 1991-02-14 Muenster Stadtwerke Ferngesteuerte schaltvorrichtung
FR2714459A1 (fr) * 1993-12-23 1995-06-30 Schlumberger Ind Sa Système de compteurs dépendants.
DE10261994A1 (de) 2002-01-30 2004-02-05 Abb Patent Gmbh Selektivschutzschalter und Verfahren zur selektiven Kurzschlussstromabschaltung
DE102004019174A1 (de) 2004-04-16 2005-11-17 Abb Patent Gmbh Verriegelungsvorrichtung für ein Installationsschaltgerät
DE102005028149A1 (de) 2005-06-17 2006-12-28 Geyer Ag Selektiver Haupt-Leitungsschutzschalter
DE102006055322A1 (de) 2006-08-18 2008-02-21 Abb Patent Gmbh Stromzählersystem

Similar Documents

Publication Publication Date Title
EP2020014B1 (fr) Dispositif de commutation
EP2015341B1 (fr) Module de protection de groupes pour une installation de commutateurs tout comme installation de commutateurs dotée d'un tel module de protection de groupes
EP1890164B1 (fr) Système de compteur de courant
DE102017215820B4 (de) Leistungsschalter und Verfahren
EP2064724B1 (fr) Declencheur auxiliaire pour commutateur de puissance
EP2606546B1 (fr) Appareil de commutation
DE10253018B4 (de) Schaltgerät sowie System und Verfahren zur Strommessung in dem Schaltgerät
DE102013225732B4 (de) Hochvolt-Sicherung für Fahrzeuge
EP1980861A2 (fr) Système de compteur de courant doté d'une interruption de courant pouvant être télécommandée
EP2243147B1 (fr) Commutateur de protection contre les courants de défaut
DE102008017932A1 (de) Installationsschalter und Stromzählersystem
EP2232661B1 (fr) Module pouvant être couple mécaniquement à un disjoncteur
EP1495477A1 (fr) Disjoncteur presentant une fonction de coupure de courant de defaut
DE102004062269A1 (de) Verfahren und Vorrichtung zum sicheren Betrieb eines Schaltgerätes
EP1981055A1 (fr) Commutateur d'installation et système de compteur de courant
DE102009031138B4 (de) Schalteinrichtung
WO2004047137A1 (fr) Declencheur de secours pour disjoncteur de protection de moteur
DE3823975A1 (de) Selektive kurzschlussstromschutzeinrichtung
DE69731330T2 (de) Differentialschutz
DE10148155A1 (de) Anordnung zur Überwachung von Motorstartern
EP3920354B1 (fr) Agencement de circuit électrique, utilisation et procédé de vérification externe de fonctionnement d'un dispositif de protection contre les courants de fuite
EP0676844A1 (fr) Coupe-circuit auto-surveillant en cas de défaut à la masse
DE102005028149A1 (de) Selektiver Haupt-Leitungsschutzschalter
DE102006037227B3 (de) Schutzschalter und Schutzschalteranordnung
DE69225127T2 (de) Selektiver automatischer Sicherheitsschalter

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

17P Request for examination filed

Effective date: 20081210

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

17Q First examination report despatched

Effective date: 20130604

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20150414