EP0465694A1 - Dispositif de commutation - Google Patents

Dispositif de commutation Download PDF

Info

Publication number
EP0465694A1
EP0465694A1 EP90113093A EP90113093A EP0465694A1 EP 0465694 A1 EP0465694 A1 EP 0465694A1 EP 90113093 A EP90113093 A EP 90113093A EP 90113093 A EP90113093 A EP 90113093A EP 0465694 A1 EP0465694 A1 EP 0465694A1
Authority
EP
European Patent Office
Prior art keywords
switching device
designed
current
current limiting
switching
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Withdrawn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
EP90113093A
Other languages
German (de)
English (en)
Inventor
Johann Dr.-Ing. Wolf
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
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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, Siemens Corp filed Critical Siemens AG
Priority to DE9018129U priority Critical patent/DE9018129U1/de
Priority to EP90113093A priority patent/EP0465694A1/fr
Publication of EP0465694A1 publication Critical patent/EP0465694A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H79/00—Protective switches in which excess current causes the closing of contacts, e.g. for short-circuiting the apparatus to be protected
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H89/00—Combinations of two or more different basic types of electric switches, relays, selectors and emergency protective devices, not covered by any single one of the other main groups of this subclass
    • H01H89/06—Combination of a manual reset circuit with a contactor, i.e. the same circuit controlled by both a protective and a remote control device
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H89/00—Combinations of two or more different basic types of electric switches, relays, selectors and emergency protective devices, not covered by any single one of the other main groups of this subclass
    • H01H89/06—Combination of a manual reset circuit with a contactor, i.e. the same circuit controlled by both a protective and a remote control device
    • H01H2089/065—Coordination between protection and remote control, e.g. protection job repartition, mutual assistance or monitoring

Definitions

  • the invention relates to a switching device, in the main current path of which at least one contact point is arranged, which can be switched by means of a tripping element or tripping elements and / or remote control device and / or manual control element. If necessary, switching can take place with the interposition of a key switch. As a result, a circuit breaker known per se or a circuit breaker can also be formed.
  • Protective devices such as circuit breakers are generally used to protect sensitive components of an electrical circuit. Protection in the event of a short circuit against excessive current square time values has often proven inadequate in practice. In practice, improved protection is attempted through complicated additional measures. On the other hand, it is common to use fast fuses or to oversize the components to be protected so that they become uneconomical. Fast fuses often do not meet today's comfort requirements, for example with regard to remote control or restart.
  • the invention has for its object to develop a simple switching device that can be used universally and allows economical and convenient protection of components or devices.
  • a switching device according to claim 1.
  • a branch which has a current limiting device is led out to its own external connection.
  • it can be switched on again by remote control device or by hand or by both measures or, if necessary, also switched off in addition to tripping by tripping devices.
  • Such a switching device which can achieve the function of a circuit breaker or circuit breaker, makes it possible to arrange components to be protected between the external connection of the feeder and the main current path and to protect them against excessive current square time values.
  • Such a switching device can also be used in many ways, since it also allows a conventional circuit breaker to be achieved by connecting the external connection of the branch to that of the main current path in the case of corresponding components of the switching device.
  • the properties of the switching device can be changed by suitable externally connected components or devices.
  • the external element becomes part of a circuit breaker or circuit breaker without the switch itself having to be designed accordingly.
  • the current limiting device can be designed in the manner of an arc quenching chamber, including the contact path.
  • the current limiting device can essentially consist of a PTC thermistor, a resistor or a capacitor. It can generally be implemented as a semiconductor circuit.
  • the current limiting device can also be designed as a further contact point with current limiting devices.
  • At least one trigger element can be implemented as an electronic circuit that works together with a current transformer as a current detection element.
  • at least one trigger element can consist essentially of a memory element.
  • One or the only trigger element can be designed in a manner known per se as a thermal and / or as a magnetic trigger.
  • the switching device has a main current path 1, in which at least one contact point 2 is arranged. This can be opened and closed by means of a trigger element 3, in the exemplary embodiment with the interposition of a switch lock 4.
  • the switching lock 4 has a manual actuating element 5.
  • the component with the trigger element 3 can also be designed as a remote control device which can be connected externally to an external connection 6.
  • a current limiting device 8 is switched on in a branch 7, which branches off from the main current path 1 in the exemplary embodiment behind the triggering element 3.
  • the branch 7 is led out to its own external connection 9.
  • An independent switching device in the manner of a circuit breaker or circuit breaker is achieved with the switching device according to the invention by external wiring or connection of the external connection 9 to the connection 11 of the main current path 1 of this connection side.
  • There is another one for the main current path 1 on the opposite connection side Terminal 12 of the main current path is provided.
  • FIG. 2 To protect sensitive components, components or devices such as relays, load circuits or semiconductors, an external circuit according to FIG. 2 is suitable.
  • the switching device 13 according to FIG. 1 is shown in FIG. 2 as an element of a block diagram.
  • the circuit with a relay 15 is shown in the exemplary embodiment.
  • Such a relay could otherwise weld in the event of a surge.
  • several components or an entire device could also be arranged accordingly, which would have to be protected against damage in the event of current surges.
  • FIG. 3 shows a device combination for protecting components which are in themselves independent and which are arranged within an overall device.
  • the switching device 13 is followed by a component 14 to be protected in an overall device housing 16.
  • Component 14 also represents an external connection to switching device 13 with regard to connections 9 and 11.
  • component 14 is designed as a further contact point 17 which is acted upon by a switching lock 18.
  • the unlatching of the key switch 18 can be controlled, for example, in the way that is customary in limiters or, on the other hand, in so-called pre-automatic machines.
  • a power supply unit is connected to the switching device 13 as the component 14 to be protected.
  • This has a transformer 19 and a rectifier 20 with smoothing capacitor 21.
  • a current pulse is predominantly derived from the external connection 9 past the transformer.
  • the storage and thus also the production can be rationalized and on the other hand the consumer can be given a versatile device.
  • protection can be achieved that cannot be achieved with conventional devices, for example circuit breakers.

Landscapes

  • Eye Examination Apparatus (AREA)
  • Seal Device For Vehicle (AREA)
  • Vehicle Body Suspensions (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Relay Circuits (AREA)
EP90113093A 1990-07-09 1990-07-09 Dispositif de commutation Withdrawn EP0465694A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE9018129U DE9018129U1 (de) 1990-07-09 1990-07-09 Schalteinrichtung
EP90113093A EP0465694A1 (fr) 1990-07-09 1990-07-09 Dispositif de commutation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP90113093A EP0465694A1 (fr) 1990-07-09 1990-07-09 Dispositif de commutation

Publications (1)

Publication Number Publication Date
EP0465694A1 true EP0465694A1 (fr) 1992-01-15

Family

ID=8204195

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90113093A Withdrawn EP0465694A1 (fr) 1990-07-09 1990-07-09 Dispositif de commutation

Country Status (2)

Country Link
EP (1) EP0465694A1 (fr)
DE (1) DE9018129U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0504461B1 (fr) * 1991-03-21 1996-10-09 Siemens Aktiengesellschaft Dispositif de commutation pour interrompre un circuit

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2259431A1 (fr) * 1974-01-25 1975-08-22 Westinghouse Electric Corp
FR2438905A1 (fr) * 1978-10-12 1980-05-09 Alsthom Cgee Dispositif de coupure de courant a haute tension
EP0204594A1 (fr) * 1985-05-06 1986-12-10 Telemecanique Appareil interrupteur protégé contre les courants de court-circuit
EP0211707A1 (fr) * 1985-07-04 1987-02-25 Merlin Gerin Disjoncteur-contacteur électrique pour des batteries de condensateurs

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2259431A1 (fr) * 1974-01-25 1975-08-22 Westinghouse Electric Corp
FR2438905A1 (fr) * 1978-10-12 1980-05-09 Alsthom Cgee Dispositif de coupure de courant a haute tension
EP0204594A1 (fr) * 1985-05-06 1986-12-10 Telemecanique Appareil interrupteur protégé contre les courants de court-circuit
EP0211707A1 (fr) * 1985-07-04 1987-02-25 Merlin Gerin Disjoncteur-contacteur électrique pour des batteries de condensateurs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0504461B1 (fr) * 1991-03-21 1996-10-09 Siemens Aktiengesellschaft Dispositif de commutation pour interrompre un circuit

Also Published As

Publication number Publication date
DE9018129U1 (de) 1995-09-28

Similar Documents

Publication Publication Date Title
DE602005000540T2 (de) Überspannungs-Schutzeinrichtung
DE3231143C2 (de) Verpol- und Überspannungsschutzschaltung für elektronische Verbraucher
DE19739780B4 (de) Drehstrommotor
DE3832068C2 (fr)
DE19757026A1 (de) Elektrische Sicherung
EP0711466B1 (fr) Procede, dispositif et utilisation de limitation du courant de court-circuit sur une ligne d'alimentation electrique
DE9218519U1 (de) Leistungsschalter
DE1965784U (de) Elektrische steckdose mit fehlerstromschutz.
EP0465694A1 (fr) Dispositif de commutation
EP1322017B1 (fr) Système de protection différentielle
DE3879641T2 (de) Statischer Auslöser mit externer Versorgung.
DE10041633A1 (de) Schaltgeräteanordnung
EP1721375B1 (fr) Dispositif de protection destine a un branchement de recepteur
EP0952653A2 (fr) Dispositif de protection en cas d'incident pour appareil interrupteur de protection
DE10148863A1 (de) Elektronisches Gerät
EP4274041B1 (fr) Boîtier isolant modulaire et appareil modulaire multipolaire à montage en série
DE19829775A1 (de) Stoßstromfeste Überspannungs- und Überstrom-Schutzeinrichtung
DE102004046810A1 (de) Elektronischer Schutzschalter mit einstellbarer Auslösecharakteristik
EP0173017B1 (fr) Système d'installation électrique avec protection de surtension
EP2439829A2 (fr) Agencement destiné à la mise hors service sécurisée d'installations photovoltaïques
DE972742C (de) Elektrischer Selbstschalter mit zur Ausloesespule parallel geschaltetem Schutzwiderstand
EP1988626A1 (fr) Circuit anti-surcharge
EP0905736B1 (fr) Module de controle programmable
DE102018212950B4 (de) Niederspannungsleistungsschalter und Verfahren
DE1959986A1 (de) Vorrichtung zum Schutz von Leitungen,beispielsweise elektrischer Kabel gegen thermische UEberlastung

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

17P Request for examination filed

Effective date: 19901220

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE CH DE FR GB IT LI

17Q First examination report despatched

Effective date: 19940627

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

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19950804