EP0504461B1 - Dispositif de commutation pour interrompre un circuit - Google Patents

Dispositif de commutation pour interrompre un circuit Download PDF

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Publication number
EP0504461B1
EP0504461B1 EP91104455A EP91104455A EP0504461B1 EP 0504461 B1 EP0504461 B1 EP 0504461B1 EP 91104455 A EP91104455 A EP 91104455A EP 91104455 A EP91104455 A EP 91104455A EP 0504461 B1 EP0504461 B1 EP 0504461B1
Authority
EP
European Patent Office
Prior art keywords
pole
module
switching device
branch
connections
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.)
Expired - Lifetime
Application number
EP91104455A
Other languages
German (de)
English (en)
Other versions
EP0504461A1 (fr
Inventor
Johann Dr. Dipl.-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
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 DE59108265T priority Critical patent/DE59108265D1/de
Priority to EP91104455A priority patent/EP0504461B1/fr
Priority to AT91104455T priority patent/ATE144076T1/de
Publication of EP0504461A1 publication Critical patent/EP0504461A1/fr
Application granted granted Critical
Publication of EP0504461B1 publication Critical patent/EP0504461B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the invention relates to a switching device for interrupting a circuit, which works with matching three-pole modules, wherein a module has a main current path with at least one contact device, from which a branch is led out with a current limiting device to its own external connection.
  • a single module of this type is known (EP-A1-0 465 694). This document falls under Article 54 (3) EPC.
  • Components or devices arranged downstream of the main current path are already protected against excessive current square time values during the switch-off process. This protection against overcurrent is particularly important in the event of a short circuit. The transfer of excessively high currents to the branch relieves the facilities downstream of the main current path.
  • limiters are based on the principle of additionally limiting the current over a switching path in the event of a shutdown by switching on further current-limiting means, but no currents are derived with respect to the main current path of downstream devices.
  • Such a derivation and not only a current limitation enables further modes of operation, for example the decoupling of an input circuit from the output circuit, which can be particularly important with a larger inductance in the output.
  • Limiters on the other hand, which are only intended to limit the current in the main current path, are known in a wide variety of designs (for example EP-A-0 350 825).
  • a switching device is also known in which individual, differently constructed three-pole modules can be subsequently recognized (EP-A1-0 205 369).
  • a resistor can also be arranged in the shunt.
  • the invention has for its object to build circuits of the three-pole modules of the type described, in which the input circuit is decoupled from the output circuit.
  • a wide variety of electrical devices are then formed from at least two matching three-pole modules.
  • three-pole module we mean a structure with three connections, in accordance with the four-pole theory of communications technology.
  • Electrical poles are to be distinguished from this, by which outer conductors, formerly called phase conductors, are referred to.
  • Electrical poles as is common in consumer networks, can be interrupted in connection with neutral conductors by switching devices with regard to downstream devices.
  • a single three-pole module has a main current path with at least one contact point. This can be switched by means of one or more trigger elements and / or by remote control devices and / or by a manual control element. If necessary, a switch lock can be interposed between the release elements and the contact point.
  • the branch from the main current path has a current limiting device and leads to its own external connection in the module.
  • the two-pole circuit described above is also suitable for interrupting a two-pole direct current network with corresponding contact points, each main current path being connected to an electrical pole conductor.
  • the three-pole module according to FIG. 1 has a main current path 1, in which at least one contact point 2 is arranged. In the exemplary embodiment, this can be done by means of a trigger element 3 Interposition of a key switch 4 can be opened and closed. In the exemplary embodiment, the switching mechanism 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.
  • This can be a linear resistor, also a complex resistor - impedance -, a non-linear resistor, an arc quenching device or generally a device for building a counter voltage or a counter electromotive force, EMF.
  • the branch 7 is led out to its own external connection 9 of the three-pole module 13.
  • the main current path 1 has connections 11 and 12.
  • the connection 12 can be connected as the input of the module 13 and the connection 11 as the output. It is advantageous if the connection 11 is used together with the connection 9 for the branch 7 on the side in a network to be interrupted, on which the greater inductance exists.
  • a switching device 10 is created for two electrical poles.
  • the modules can have a structure as shown in FIG. 1. Another structure corresponding to that described can also be used as a basis.
  • the connection 9 of the branch of the first module 13 and the connection of the branch of the second module, which is designated by 109, are electrically connected to one another.
  • FIG. 3 corresponds essentially to the exemplary embodiment according to FIG. 2, with an additional current limiting element 14 being connected between the connections of the branches of the modules, connections 9 and 109.
  • This can be a linear resistor, also a complex resistor - impedance -, a non-linear resistor, an arc quenching device or generally a device for building a counter voltage or a counter electromotive force, EMF. It can also be another element supporting the current limiting device 8 of the three-pole modules 13 under the given task.
  • a feed network can be connected to the connections 12 and 112 and a network on the output side for two electrical poles, for example two outer conductors, can be connected to the connections 11 and 111.
  • the switching device 10 according to FIG. 4 is in turn constructed from two three-pole modules 13, the second module, which is arranged at the bottom in the drawing, being arranged as a mirror image of the upper module.
  • the internal and external wiring can be seen from the connection designation in comparison to the exemplary embodiment according to FIGS. 2 and 3 or according to FIG. 1.
  • Such an electrical two-pole switching device is symmetrical in terms of its connections 11, 112 and 12, 111 in its behavior.
  • An additional current limiting element 14 can optionally be switched on, as illustrated by the dashed line.
  • the switching device 10 according to FIG. 5 is designed to be symmetrical with regard to its outer connections in the manner shown, but differently than in the exemplary embodiment according to FIG. 4.
  • the switching device 10 illustrates in a broader sense an electrically two-pole switching device, in Narrower sense a single-pole electrical switching device with the connections 12 and 112 and the connections 15 for a neutral conductor.
  • a switching device 10 for two electrical poles is shown in the narrower sense in FIG. Connections 12 and 212 or 112 and 312 are available on the two connection sides.

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Selective Calling Equipment (AREA)

Claims (2)

  1. Dispositif d'interruption d'un circuit,
    - dans lequel au moins deux modules (13) tripôlaires et concordants forment les dispositifs à un pôle électrique et à plusieurs pôles électriques les plus divers,
    - dans lequel un module (13) tripôlaire comporte un trajet (1) de courant principal comportant au moins un point (2) de contact, qui peut être branché au moyen d'un organe (3) de déclenchement ou d'organes de déclenchement et/ou au moyen d'un dispositif de télécommande et/ou d'un organe (5) d'actionnement manuel, éventuellement par branchement intermédiaire d'un verrou (4) de maintien et qui comporte, de plus, une branche (7) de dérivation à dispositif (8) de limitation de courant.
  2. Dispositif d'interruption suivant la revendication 1,
    caractérisé en ce que
    les organes (3) de déclenchement ou éléments de détection et/ou verrous (4) de maintien ou éléments de déclenchement des divers pôles électriques coopèrent entre des tripôles (13).
EP91104455A 1991-03-21 1991-03-21 Dispositif de commutation pour interrompre un circuit Expired - Lifetime EP0504461B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE59108265T DE59108265D1 (de) 1991-03-21 1991-03-21 Schalteinrichtung zur Unterbrechung eines Stromkreises
EP91104455A EP0504461B1 (fr) 1991-03-21 1991-03-21 Dispositif de commutation pour interrompre un circuit
AT91104455T ATE144076T1 (de) 1991-03-21 1991-03-21 Schalteinrichtung zur unterbrechung eines stromkreises

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP91104455A EP0504461B1 (fr) 1991-03-21 1991-03-21 Dispositif de commutation pour interrompre un circuit

Publications (2)

Publication Number Publication Date
EP0504461A1 EP0504461A1 (fr) 1992-09-23
EP0504461B1 true EP0504461B1 (fr) 1996-10-09

Family

ID=8206554

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91104455A Expired - Lifetime EP0504461B1 (fr) 1991-03-21 1991-03-21 Dispositif de commutation pour interrompre un circuit

Country Status (3)

Country Link
EP (1) EP0504461B1 (fr)
AT (1) ATE144076T1 (fr)
DE (1) DE59108265D1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0465694A1 (fr) * 1990-07-09 1992-01-15 Siemens Aktiengesellschaft Dispositif de commutation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2924752A (en) * 1957-07-12 1960-02-09 Ite Circuit Breaker Ltd Combined circuit breaker and short circuiter
FR2582857B1 (fr) * 1985-05-29 1989-04-28 Merlin Gerin Disjoncteur unipolaire et neutre a effet shunt
DE3824027A1 (de) * 1988-07-15 1990-01-18 Asea Brown Boveri Elektrisches schaltgeraet

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0465694A1 (fr) * 1990-07-09 1992-01-15 Siemens Aktiengesellschaft Dispositif de commutation

Also Published As

Publication number Publication date
ATE144076T1 (de) 1996-10-15
EP0504461A1 (fr) 1992-09-23
DE59108265D1 (de) 1996-11-14

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