EP2274760B1 - Circuit électrique comprenant un moyen de signalisation - Google Patents

Circuit électrique comprenant un moyen de signalisation Download PDF

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Publication number
EP2274760B1
EP2274760B1 EP09730964.5A EP09730964A EP2274760B1 EP 2274760 B1 EP2274760 B1 EP 2274760B1 EP 09730964 A EP09730964 A EP 09730964A EP 2274760 B1 EP2274760 B1 EP 2274760B1
Authority
EP
European Patent Office
Prior art keywords
signaling
electrical circuit
circuit according
electrical
functional state
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.)
Active
Application number
EP09730964.5A
Other languages
German (de)
English (en)
Other versions
EP2274760A1 (fr
Inventor
Norbert Kasper
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.)
Weidmueller Interface GmbH and Co KG
Original Assignee
Weidmueller Interface GmbH and Co KG
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 Weidmueller Interface GmbH and Co KG filed Critical Weidmueller Interface GmbH and Co KG
Priority to SI200931666A priority Critical patent/SI2274760T1/sl
Publication of EP2274760A1 publication Critical patent/EP2274760A1/fr
Application granted granted Critical
Publication of EP2274760B1 publication Critical patent/EP2274760B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01H71/04—Means for indicating condition of the switching device
    • 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
    • H01H71/04—Means for indicating condition of the switching device
    • H01H2071/042—Means for indicating condition of the switching device with different indications for different conditions, e.g. contact position, overload, short circuit or earth leakage

Definitions

  • the invention relates to an electrical circuit according to the preamble of claim 1.
  • Electrical systems such as electrical systems or electrical lines are, to ensure trouble-free operation, protected from interference events by protective devices against impairment of their function and / or against destruction.
  • the electrical circuits in question with a means for signaling signal at least one functional state, such as functional or defective, a protective device.
  • a functional state such as functional or defective
  • the functional state of a protective device to be monitored is directly perceptible via a signaling, for example via optical signaling.
  • a malfunction event is understood to mean an event by which electrical energy is applied to an electrical system in such a way that the electrical system is impaired or destroyed in its proper function.
  • interference events are lightning or static discharges as a result of overvoltage pulses and / or overcurrent pulses, for example, galvanic, inductive or capacitive, are coupled into the electrical system and impair or destroy its function.
  • Protection against over-voltage pulses have protective elements, u. For example, spark gaps, varistors, diodes, suppressor diodes, and are known in the art. Such protective devices are also referred to as OVP (over voltage protection).
  • an interference event in the context of the present invention is understood to mean an overcurrent with which an electrical system, for example an electrical line, can be overloaded and / or destroyed, for example, by a short circuit or ground fault.
  • Protective devices for protection against overcurrents are colloquially referred to as fuses and are the skilled person in various Versions, for example in the form of fuses or circuit breakers, known.
  • FIGS Fig. 3a and 3b Shown is a fuse connecting two electrical switching points. To signal a functional state of the fuse, this is connected in parallel to a series circuit of a series resistor and an opposite parallel connection of two LEDs. If the fuse is functional, the voltage prevailing between the two circuit points is too small to supply the LEDs with sufficient voltage to light up. If the fuse, for example, destroyed by a high current and therefore interrupts the flow of current, so the voltage between the two points and the LEDs are supplied with sufficient voltage to a functional state, here a defect in the fuse signaling. It is clear that depending on the type of voltage, DC or AC voltage only one or both LEDs light up.
  • a circuit according to the preamble of claim 1 is known from EP-A-1 628 317 known.
  • a disadvantage of the known circuits is that the means used for signaling, such as a light emitting diode, to maintain the signaling electrical energy and cause a retroactive effect on the function monitoring protective device and / or an electrical energy-providing device.
  • a signaling device which is pulse-activatable and bistable, has no circuit feedback after pulse activation and is designed for permanent, powerless signaling.
  • Fig. 1a shows a signaling device 1 with a, for example, held in a housing 2 housing 3.
  • the housing 3 is elongated and has at its upper end 4 a possibly transparent designed end 4a.
  • a signaling element 5 is slidably disposed within the housing 3.
  • the signaling element 5 is between a first position (which signals a first functional state) (as in FIG Fig. 1 a and 2a shown) and a - a second functional state signaling - second position (as in Fig. 1b and 2a represented) by a force element, for example by a spring 7 slidably.
  • the signaling means 1 further comprises a locking means 8 with a locking lug 8a, which first the signaling element 5 in the first position ( Fig. 1a and 2a ) arrested.
  • the detent lug 8a engages in a corresponding inner opening 8b of the signaling element 5.
  • a, for example, designed as an electromagnet 9 pull element is pulse-activated so the detent 8a is brought in a pulse activation of the electromagnet 9 out of engagement with the arranged on the inside of the signaling element 5 opening 8b. Due to the force of the spring 7, the signaling element 5 is moved from the first to the second position.
  • the pulse activation of the electromagnet 9 is effected by application of an electrical pulse, via electrical connection means, for example via the conductors 9a, 9b and the contact pins 9c, 9d.
  • signaling means 1 is configured only for optical signaling of a functional state.
  • the signaling element 5 is designed monochrome or multicolor and visible through the optically transparent executed end 4a of the housing 3 when it is in the second position ( Fig. 1b ).
  • the in Fig. 2a and 2b illustrated signaling element 5 means for electrical signaling, for example, the contact pins 10a and 10b and the contact connector 10c.
  • an opener is realized, wherein the opener opens when the signaling element 5 from the first position ( Fig. 2a ) into a second position ( Fig. 2b ) is moved.
  • the Fig. 2a and 2b Not shown means for pulse activation provided with reference numerals.
  • Fig. 3a and 3b show a known from the prior art monitoring a fuse 11 by means of anti-parallel light emitting diodes 12. The operation of this circuit has already been explained in the introduction to the description.
  • the light-emitting diode arrangement 12 known from the prior art is replaced by the signaling means 5 according to the invention.
  • the via the contact pins 9c, 9d (see Fig. 1a and 1b ) pulse activatable electromagnet 9 (see Fig. 1a and 1b ) in series with the opener formed by the means 10a, 10b and 10c (see Fig. 2a and 2b ).
  • the opening contact of the signaling means 5 opens as described above.
  • the current flow through the electromagnet is thereby interrupted, the electromagnet 9 is de-energized and thus does not absorb electrical power.
  • the signaling element 5 remains in the second position, as in FIG Fig. 4b shown (compare also Fig. 1b and 2 B ) and permanently signals the functional state of the protection device.
  • opening the opener see. FIGS. 2a and 2b , 10a, 10b and 10c
  • the galvanic connection between the circuit points 13 and 14 is interrupted, so that by the signaling element 5 has no effect on the circuit and the protection device to be monitored, here the fuse 11.
  • the signaling means 5 further comprises an unillustrated electrically operated restoring device with which the signaling element 5 can be reset from the second back to the first position, for example after a successful repair of a protective device to be monitored.
  • a protection device 15 for protecting electrical systems against overvoltages and the signaling device 5 according to the invention is shown.
  • spark gaps between two branches E1-A1 and E3-A3 and between two branches E2-A2 and E3-A3 lies in the entrance area of the protective device 15, both spark gaps being accommodated in a component designated FS in the present embodiment.
  • This part of the protection device is considered coarse protection denotes and "destroys" most of the injected by a disturbance event in the protection device 15 energy.
  • the remaining part of the protection device 15 is referred to as fine protection and serves primarily to limit the voltages occurring to a safe level for the electrical system to be protected.
  • An input terminal E1 is connected via a resistor R1 to an output terminal A1. Parallel to the output terminal A1 and to a lying on PE potential output terminal A3 is a series circuit of a suppressor diode SD1 and anti-parallel diodes D1 and D2. Accordingly, an input terminal E2 is connected via a resistor R2 to an output terminal A2, parallel to the output terminal A2 and lying at PE potential output terminal A3 is a series circuit of a suppressor diode SD2 and the antiparallel connected diodes D1 and D2.
  • An unillustrated electrical system to be protected against disturbance events for example a measuring amplifier or an industrial PC, is connected to the protective device 15 via the output terminals A1 to A3.
  • the input terminals E1-E3 are in turn connected to signal sources and / or to devices supplying electrical energy, for example an electrical supply network.
  • the installation and the interconnection of the protective device 15 and the electrical system to be protected takes place in such a way that, in the event of an interference event, coupled-in electrical energy is coupled in on the input side of the protective device 15. This is known to the person skilled in the art.
  • the circuit shown in the Fig. 5a and 5b also has a state recognition device 16 which monitors the protection device 15 and, in the event of a defect in the protection device 15, acts on the connected signaling device 5 with an electrical signal, for example in the form of an electrical pulse. By such a pulse, the signaling means 5 is activated, so that, as already stated, a permanent and powerless signaling of the functional state of the protective device 15 takes place. Furthermore, here also a non-reaction by the on hand Fig. 4a and 4b explained interconnections can be achieved with the realized by the means 10a, 10b and 10c opener (see. FIGS. 2a and 2b , 10a, 10b and 10c).
  • the signaling means 5 may additionally to the contact already described a further contact 17, for example, for retransmission of a functional state and a non-illustrated higher-level electrical system having.

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Fuses (AREA)
  • Keying Circuit Devices (AREA)
  • Electronic Switches (AREA)

Claims (7)

  1. Circuit électrique présentant un dispositif de protection (11, 15) pour protéger des systèmes électriques des événements perturbateurs et des moyens (1) pour signaler au moins un état de fonctionnement du dispositif de protection (11, 15), le moyen de signalisation (1) étant activable par une impulsion et bistable, ne présentant pas de rétroaction sur le circuit après une activation par une impulsion et étant équipé en vue d'une signalisation durable sans fil, caractérisé en ce que le dispositif de protection présente un dispositif de protection contre les surtensions (15) et en ce que le moyen de signalisation (1) présente un boîtier (3) de forme allongée avec une extrémité supérieure (4) munie d'une fermeture (4a) transparente et un élément de signalisation (5), l'élément de signalisation (5) étant disposé avec possibilité de translation à l'intérieur du boîtier (3) et le boîtier (3) étant retenu dans une paroi du boîtier (2) et le moyen de signalisation (1) présentant un dispositif de réinitialisation à actionnement électrique avec lequel l'élément de signalisation (5) peut être ramené de la deuxième position à la première.
  2. Circuit électrique selon la revendication 1, caractérisé en ce que le moyen de signalisation (1) signale l'au moins un état de fonctionnement de façon visuelle et/ou électrique.
  3. Circuit électrique selon l'une des revendications précédentes, caractérisé en ce que l'élément de signalisation (5) peut être déplacé d'une première position signalant un premier état de fonctionnement (Fig. 1 a, 2a) à une deuxième position signalant un deuxième état de fonctionnement (Fig. 1 b, 2b), l'élément de signalisation (5) étant bloqué dans la première position par un moyen de blocage (8) pouvant être débloqué par une activation par une impulsion et l'élément de signalisation (5) pouvant être déplacé, après une activation par une impulsion du moyen de blocage (8), de la première position à la deuxième position au moyen d'un élément de force (7).
  4. Circuit électrique selon l'une des revendications précédentes, caractérisé en ce que l'élément de force (7) est réalisé comme un ressort.
  5. Circuit électrique selon l'une des revendications précédentes, caractérisé en ce que l'élément de signalisation (5) est réalisé d'une seule couleur aux fins de signalisation visuelle.
  6. Circuit électrique selon l'une des revendications précédentes, caractérisé en ce que l'élément de signalisation (5) est réalisé de plusieurs couleurs aux fins de signalisation visuelle.
  7. Circuit électrique selon l'une des revendications précédentes, caractérisé en ce que le dispositif de protection comprend un disjoncteur de protection de ligne (11).
EP09730964.5A 2008-04-11 2009-03-12 Circuit électrique comprenant un moyen de signalisation Active EP2274760B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI200931666A SI2274760T1 (sl) 2008-04-11 2009-03-12 Električno vezje s sredstvom za signaliziranje

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202008005085U DE202008005085U1 (de) 2008-04-11 2008-04-11 Elektrische Schaltung mit einem Mittel zur Signalisierung
PCT/EP2009/052907 WO2009124820A1 (fr) 2008-04-11 2009-03-12 Circuit électrique comprenant un moyen de signalisation

Publications (2)

Publication Number Publication Date
EP2274760A1 EP2274760A1 (fr) 2011-01-19
EP2274760B1 true EP2274760B1 (fr) 2017-04-19

Family

ID=40672550

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09730964.5A Active EP2274760B1 (fr) 2008-04-11 2009-03-12 Circuit électrique comprenant un moyen de signalisation

Country Status (6)

Country Link
US (1) US8379362B2 (fr)
EP (1) EP2274760B1 (fr)
DE (1) DE202008005085U1 (fr)
ES (1) ES2631479T3 (fr)
SI (1) SI2274760T1 (fr)
WO (1) WO2009124820A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011112474B4 (de) * 2011-09-05 2017-07-13 Dehn + Söhne Gmbh + Co. Kg Verfahren und Anordnung zum Überspannungsschutz von Wechselrichtern für photovoltaische Anlagen
DE102016203506B4 (de) * 2016-03-03 2021-10-07 Siemens Aktiengesellschaft Auslösevorrichtung und elektromechanisches Schutzschaltgerät
DE102016011815B3 (de) * 2016-10-05 2018-02-15 IAD Gesellschaft für Informatik, Automatisierung und Datenverarbeitung mbH Betriebsgerät mit gestaffeltem Überspannungs- und Überstromschutz für die Ansteuerung von intelligenten Leuchtmitteln und Geräten sowie Leuchtmittel mit diesem Betriebsgerät
DE102017129657A1 (de) * 2017-07-10 2019-01-10 Dehn + Söhne Gmbh + Co. Kg Anordnung zur nicht-reversiblen Detektion und Anzeige von elektrischen Überströmen oder Stromgrenzwerten mittels eines vorkonfektionierten Leiters
CN113514715A (zh) * 2021-04-20 2021-10-19 核工业西南物理研究院 一种大量电容并联时单个电容过流故障实时指示电路

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3308404A (en) * 1964-02-10 1967-03-07 Fujita Teizo Electric switch responsive to predetermined or abnormal current condition
EP1826795A1 (fr) * 2006-02-24 2007-08-29 ABB France Dispositif de protection contre les surtension avec système de visualisation simplifié et procédé de fabrication correspondant

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4382270A (en) * 1981-04-07 1983-05-03 Westinghouse Electric Corp. Ground fault circuit breaker with mechanical indicator for ground fault trips
ZA864209B (en) * 1985-07-03 1987-02-25 Westinghouse Electric Corp Ground fault receptacle with compact component arrangement
DE3634456C1 (en) * 1986-10-09 1988-02-11 Kopp Gmbh & Co Kg Heinrich Remotely controllable line protection circuit breaker having a switching status indication
DE19735415A1 (de) 1997-08-14 1999-02-18 Siemens Ag Schaltmechanismus für einen Schutzschalter
US7173799B1 (en) * 2004-02-03 2007-02-06 Pass & Seymour, Inc. Protection device with a sandwiched cantilever breaker mechanism
DE102004040288B4 (de) 2004-08-19 2007-09-20 Siemens Ag Schutzschalter mit Kurzschluss- und Überlastauslöseanzeige sowie entsprechendes Verfahren

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3308404A (en) * 1964-02-10 1967-03-07 Fujita Teizo Electric switch responsive to predetermined or abnormal current condition
EP1826795A1 (fr) * 2006-02-24 2007-08-29 ABB France Dispositif de protection contre les surtension avec système de visualisation simplifié et procédé de fabrication correspondant

Also Published As

Publication number Publication date
US20110038089A1 (en) 2011-02-17
US8379362B2 (en) 2013-02-19
SI2274760T1 (sl) 2017-07-31
WO2009124820A1 (fr) 2009-10-15
ES2631479T3 (es) 2017-08-31
DE202008005085U1 (de) 2009-08-20
EP2274760A1 (fr) 2011-01-19

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