EP1953787B1 - Vorrichtung zum Schutz gegen Überspannungen mit Unterbrecherkontakt, der selektive Unterbrechungsmittel umfasst - Google Patents

Vorrichtung zum Schutz gegen Überspannungen mit Unterbrecherkontakt, der selektive Unterbrechungsmittel umfasst Download PDF

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Publication number
EP1953787B1
EP1953787B1 EP08354006.2A EP08354006A EP1953787B1 EP 1953787 B1 EP1953787 B1 EP 1953787B1 EP 08354006 A EP08354006 A EP 08354006A EP 1953787 B1 EP1953787 B1 EP 1953787B1
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EP
European Patent Office
Prior art keywords
disconnector
electrode
energy
connection electrode
connection
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EP08354006.2A
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English (en)
French (fr)
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EP1953787A2 (de
EP1953787A3 (de
Inventor
Eric Domejean
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Schneider Electric Industries SAS
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Schneider Electric Industries SAS
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Publication of EP1953787A3 publication Critical patent/EP1953787A3/de
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/10—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess voltage, e.g. for lightning protection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/46—Means for extinguishing or preventing arc between current-carrying parts using arcing horns
    • H01H9/465—Shunt circuit closed by transferring the arc onto an auxiliary electrode
    • 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
    • H01H2071/044—Monitoring, detection or measuring systems to establish the end of life of the switching device, can also contain other on-line monitoring systems, e.g. for detecting mechanical failures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/14—Adaptation for built-in safety spark gaps

Definitions

  • the invention relates to an overvoltage protection device comprising an overvoltage limiter with non-linear elements variable with the voltage and a disconnection device with electrical contacts electrically arranged in series with the surge protector.
  • Said disconnection device comprises a first connection electrode in electrical connection with a first connection pad, a second connection electrode in electrical connection with a second pad and a third movable pad switching electrode electrically connected to the second pad connection.
  • An actuating mechanism is provided for moving the third movable arc switching electrode to cause permanent opening of the electrical contacts when the protective device.
  • Overvoltage protection devices include an overvoltage limiter with non-linear elements variable with the voltage and a contact disconnection device actuated by an actuating mechanism.
  • the surge protector and the disconnect device are connected in series.
  • the contact disconnection device can adopt a triggering position and a latching position respectively corresponding to the open state and the closed state of the contacts.
  • An actuating mechanism causes the displacement of the contacts of the disconnection device to the open state, especially in the event of destruction of the surge arrester when said non-linear elements are at the end of their service life.
  • the contacts can generally open and close (repel) under a lightning strike without the actuating mechanism unlocking. These repulsions (openings) of the contacts during operation of the protection device are followed by an automatic re-closing of said contacts.
  • the calibration of the known protection devices is carried out so that the actuating mechanism of the disconnection device remains locked in the presence of electrical currents of lightning waves type 10/350 or 8/20. It is generally undesirable for the actuating mechanism of the disconnecting device to unlock and cause permanent opening of the contacts each time it is crossed by an electric lightning wave current.
  • the triggering energy threshold is directly dependent on the electric currents of 10/350 or 8/20 type lightning waves for which the opening of the contacts of the disconnection device is not desired.
  • said triggering energy threshold corresponds to the threshold above which electrical currents of lightning waves of the 10/350 or 8/20 type would cause the permanent opening of the electrical contacts.
  • alternating or short-circuit currents having an electrical energy greater than the triggering energy threshold cause the contacts of the disconnection device to open.
  • the protective device is effective and allows the flow of said electric currents of lightning waves without their energy is responsible for material damage.
  • the electric currents of 10/350 or 8/20 type lightning waves having an energy lower than the triggering energy threshold do not unlock the actuating mechanism of the disconnection device to cause the opening of the contacts.
  • the known protective devices do not have the sufficient level of protection.
  • the short-circuit current having a lower energy than the triggering energy threshold can cause property damage.
  • the invention therefore aims to overcome the disadvantages of the state of the art, so as to provide an overvoltage protection device comprising means of disconnection effective against short circuits.
  • the overvoltage protection device comprises a disconnector against the alternating or continuous short-circuit currents connected in series between the third movable arc switching electrode and the second connection pad. Said disconnector is disconnected when an electric arc is switched between the first connection electrode and the second connection electrode and said disconnector goes into a closed electrical state to an open electrical state when it is traversed by alternating or continuous electric currents. short circuit having an energy lower than a triggering energy threshold. Said triggering energy threshold corresponds to the threshold above which electrical currents of lightning waves of the 10/350 or 8/20 type cause the permanent opening of the electrical contacts.
  • the disconnector against alternating currents or continuous short circuit is a thermal disconnector.
  • the thermal disconnector is a protection fuse.
  • the surge protector is connected in series with the disconnector against alternating or short-circuit currents between the movable arc switching electrode and the second connection pad, limiter and said disconnector being simultaneously off when an electric arc is switched between the first connection electrode and the second connection electrode.
  • the surge protector is electrically connected in series with the disconnection device by at least a fuse link
  • drive means exert a displacement force displacing the surge protector in case of melting of said at least one fuse link, the displacement of said limiter acting directly on the actuating mechanism to move the third switching electrode moving arc and cause the permanent opening of the contacts.
  • the drive means comprise a spring.
  • the surge protector is electrically connected to the second connection pad by two fusible links, a first fusible link acting as a disconnector against alternating or continuous currents of short circuits, a second fusible link undergoing a fusion in case of overheating said limiter.
  • the second fusible link is a low temperature solder.
  • the surge protector comprises a varistor.
  • the surge protector comprises a varistor connected in series with a spark gap.
  • a high-energy disconnector is connected in series between the first connection electrode and the first connection pad, the said high-energy disconnector being calibrated to disconnect when electrical currents having an energy greater than the triggering energy threshold.
  • the high-energy disconnector comprises means for acting on the actuating mechanism to cause the permanent opening of the electrical contacts.
  • the high-energy disconnector comprises electromagnetic triggering means.
  • the high energy disconnector comprises a fuse element.
  • the third movable arc switching electrode is connected to the first connection electrode by an insulating piece forming a spark gap when the electrical contacts are closed.
  • the third movable arc switching electrode is in contact with the first connection electrode when the electrical contacts are closed.
  • the disconnector against the AC or DC short-circuit currents is off when the third moving arc switching electrode moves away from the first connection electrode and an electric arc is switched between the first connection electrode. and the second connection electrode.
  • the overvoltage protection device 1 comprises an overvoltage limiter 2 with variable non-linear elements with the voltage and a disconnecting device 3 with electrical contacts 4, 6.
  • the surge protector 2 and the disconnection device 3 are electrically arranged. serial.
  • the surge protector 2 preferably comprises a varistor 21.
  • a spark gap 22 may also be placed in series with the varistor 21.
  • the disconnection device 3 comprises a first connection electrode 40 in electrical connection with a first connection pad 41 and a second connection electrode 50 in electrical connection with a second connection pad 51.
  • connection pads 41, 51 are intended to be connected respectively to a phase and the neutral or vice versa.
  • connection pads 41, 51 are intended to be connected respectively to a phase and earth or vice versa.
  • the disconnection device 3 comprises a third movable arc switching electrode 60 electrically connected to the second connection pad 51.
  • a first electrical contact 4 is placed on the first connection electrode 40 and a second electrical contact 6 is positioned on the third movable arc switching electrode 60.
  • the third movable arc switching electrode 60 is in contact with the first connection electrode 40 when the electrical contacts 4, 6 are closed.
  • the disconnecting device 3 further comprises an actuating mechanism 7. Said mechanism is intended to be actuated to move the third movable arc switching electrode 60 and mechanically cause the permanent opening of the electrical contacts 4, 6.
  • the disconnecting device 3 with contacts 4, 6 is calibrated firstly to discharge electrical currents of lightning waves of the type 10/350 or 8/20 without the actuating mechanism 7 being actuated, and of on the other hand to actuate the actuating mechanism 7 and cause the permanent opening of the contacts 4, 6 for alternating currents or continuous short circuit.
  • the protection devices 1 are calibrated in such a way that the actuating mechanism 7 of the disconnection device 3 remains locked in the presence of electric currents of 10/350 or 8/20 type lightning waves. Indeed, the actuating mechanism 7 does not cause permanent opening of the contacts each time it is crossed by an electric current of lightning wave.
  • the triggering energy threshold is directly dependent on the electric currents of 10/350 or 8/20 type lightning waves for which the opening of the contacts 4, 6 of the disconnection device 3 is not performed. In other words, said triggering energy threshold corresponds to the threshold beyond which 10/350 or 8/20 lightning-type electric currents would cause permanent opening of the electrical contacts 4, 6.
  • the actuating mechanism 7 When the protection device is traversed by electric currents having an energy greater than a triggering energy threshold, the actuating mechanism 7 is actuated and moves the third moving arc switching electrode 60 and mechanically causing the permanent opening of the electrical contacts 4, 6.
  • the electric currents responsible for actuating the actuating mechanism 7 are generally alternating currents or continuous short circuit.
  • the protection device When the protection device is traversed by electric currents of lightning waves of type 10/350 or 8/20 having an energy lower than the trigger threshold energy, the protection device is effective and allows the flow of electrical currents of lightning waves without their energy being responsible for material damage. In addition, said electric lightning wave currents do not unlock the actuating mechanism of the disconnecting device to cause the opening of the contacts.
  • the overvoltage protection device has a disconnector against alternating or short-circuit currents 9.
  • the disconnector against the AC or DC short-circuit currents 9 is connected in series between the third movable arc switching electrode 60 and the second connection pad 51.
  • the protection device comprises an arc extinguishing chamber 101.
  • the first connection electrode 40 and the second connection electrode 50 are arranged facing the arc extinguishing chamber 101 and define the mouth of said chamber.
  • Said arc extinguishing chamber 101 comprises deionization fins 102 for cooling an electric arc 100 and extinguishing it.
  • the disconnector against alternating or continuous short-circuit currents 9 may be a thermal disconnector.
  • the disconnector against alternating or continuous short-circuit currents 9 is preferably a protection fuse.
  • the surge protector 2 is electrically connected in series with the disconnector against the AC or DC short-circuit currents 9 between the movable arc switching electrode 60 and the second connection pad 51.
  • an electric arc 100 is very quickly switched between the first connection electrode 40 and the second connection electrode 50. and the overvoltage limiter 2 and the disconnector against the AC currents or short-circuit currents 9 are simultaneously placed out of circuit and are lightly traversed by the lightning wave. Said limiter and said disconnector are then protected and are not damaged by lightning strikes.
  • the surge protector 2 is connected electrically in series with the disconnecting device 3 by at least one fuse link 9, 8.
  • Drive means 10 permanently exert the displacement force Fd on said surge protector. If at least one of the fuse links is destroyed, the surge protector 2 then moves under the action of the displacement force Fd.
  • the displacement of said limiter acts directly on the actuating mechanism 7. Said mechanism unlocks and moves the third movable arc switching electrode 60 and causes the permanent opening of the contacts 4, 6.
  • the drive means 10 preferably comprise a spring.
  • This coil-type spring is compressed and exerts the displacement force Fd directly on the varistor 21.
  • the varistor 21 is connected in series with the disconnection device 3 through two connection terminals.
  • a first terminal is connected to the disconnection device 3 by a flexible metal braid (not shown), and a second terminal is connected to the second connection pad 51 by a rigid axis integrating said at least one fuse link 8, 9.
  • the rigid axis maintains the varistor in a first position.
  • the third mobile arc switching electrode is in a so-called service position.
  • the rigid axis releases the displacement of the varistor under the action of the displacement force Fd.
  • the varistor 21 moves to act directly on the actuating mechanism 7. Indeed, as shown on the Figures 8 and 9 the varistor 21 comes into contact with a trigger bar 71 of the actuating mechanism 7 which unlocks to move the third movable arc switching electrode 60.
  • the displacement of said third electrode causes the permanent opening of the contacts 4, 6.
  • the third movable arc switching electrode 60 is then in a so-called switching position.
  • the surge protector 2 can be electrically connected to the second connection pad 51 by two fusible links 9, 8.
  • a first fuse link plays the role of the disconnector against alternating or short-circuit currents 9.
  • the rigid axis connecting the varistor to the second connection pad 51 then comprises a section calibrated to melt when said axis is traversed by short-circuit electric currents whose energy is below the tripping threshold.
  • a second fusible link 8 undergoes melting in the event of overheating of said limiter.
  • the rigid axis connecting the varistor 21 to the second connection pad 51 is soldered to the second terminal of the varistor 21 by a low temperature solder.
  • the operation of the first embodiment remains unchanged if the varistor 21 is placed in a carriage or in a mobile housing, forming a single block with the varistor 21.
  • the displacement force could then be applied to the carriage or to the housing mobile instead of directly applying to the varistor.
  • the carriage or the mobile housing could act directly on the trigger bar 71 of the actuating mechanism 7.
  • a high-energy disconnector 11 is connected in series between the first connection electrode 40 and the first connection pad 41. Said high-energy disconnector 11 is calibrated to disconnect when electrical currents having a higher energy flow through it. at the trigger energy threshold.
  • said high-energy disconnector is intended to act on the actuating mechanism 7 to move the third movable arc switching electrode 60 and cause the permanent opening of the electrical contacts 4, 6.
  • the high-energy disconnector 11 is then calibrated to unlock the actuating mechanism 7 when it is crossed by electric currents having an energy greater than the triggering energy threshold.
  • Said high-energy disconnector then comprises means for acting on the actuating mechanism 7 to cause permanent opening of the electrical contacts 4, 6.
  • the high-energy disconnector 11 comprises electromagnetic tripping means or a fuse element.
  • the third movable arc switching electrode 60 is connected to the first connection electrode 40 by an insulating piece when the electrical contacts 4, 6 are closed.
  • the insulating part forms a spark gap 22 electrically positioned in series with the varistor 21 of the overvoltage limiter 2.
  • the disconnector against the AC or DC short-circuit currents 9 is switched off when an electric arc 100 is switched between the first connection electrode 40 and the second connection electrode 50.
  • the disconnecting device comprises resetting means 72.
  • the resetting means 72 allow the displacement of said third electrode from the so-called switching position to the so-called service position.
  • the resetting means 72 it is possible to mechanically cause the closing of the contacts 4, 6 after permanent opening of said contacts.
  • the resetting means 72 also act on the actuating mechanism 7 to cause the permanent opening of the electrical contacts 4, 6.

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Protection Of Static Devices (AREA)

Claims (17)

  1. Vorrichtung (1) zum Schutz gegen Überspannungen, umfassend
    - einen Überspannungsbegrenzer (2) mit mit der Spannung variablen nicht linearen Elementen,
    - eine Unterbrechungsvorrichtung (3) mit elektrischen Kontakten (4, 6), die elektrisch in Serie mit dem Überspannungsbegrenzer (2) angeordnet ist, wobei die Unterbrechungsvorrichtung umfasst:
    - eine erste Anschlusselektrode (40) in elektrischer Verbindung mit einem ersten Anschlussbereich (41),
    - eine zweite Anschlusselektrode (50) in elektrischer Verbindung mit einem zweiten Anschlussbereich (51),
    - eine dritte bewegliche Lichtbogenschaltelektrode (60), die elektrisch mit dem zweiten Anschlussbereich (51) verbunden ist,
    - einen Betätigungsmechanismus (7), der die dritte bewegliche Lichtbogenschaltelektrode (60) verschiebt, um die permanente Öffnung der elektrischen Kontakte (4, 6) hervorzurufen,
    dadurch gekennzeichnet, dass sie ein Unterbrechungsmittel gegen die Kurzschluss-Wechsel- oder Gleichströme (9) umfasst, das in Serie zwischen der dritten beweglichen Lichtbogenschaltelektrode (60) und dem zweiten Anschlussbereich (51) angeschlossen ist,
    - wobei das Unterbrechungsmittel ausgeschaltet ist, wenn ein Lichtbogen (100) zwischen der ersten Anschlusselektrode (40) und der zweiten Anschlusselektrode (50) geschaltet wird;
    - wobei das Unterbrechungsmittel von einem geschlossenen elektrischen Zustand in einen offenen elektrischen Zustand übergeht, wenn es von elektrischen Kurzschluss-Wechsel- oder Gleichströmen mit einer geringeren Energie als eine energetische Auslöseschwelle durchquert wird, wobei die energetische Auslöseschwelle der Schwelle entspricht, über die hinaus elektrische Ströme von Stoßwellen eines Blitzes vom Typ 10/350 oder 8/20 die permanente Öffnung der elektrischen Kontakte (4, 6) hervorrufen.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das Unterbrechungsmittel gegen die Kurzschluss-Wechsel- oder Gleichströme (9) ein thermisches Unterbrechungsmittel ist.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass das thermische Unterbrechungsmittel (9) eine Schutzsicherung ist.
  4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Überspannungsbegrenzer (2) in Serie mit dem Unterbrechungsmittel gegen Kurzschluss-Wechsel- oder Gleichströme (9) zwischen der beweglichen Lichtbogenschaltelektrode (60) und dem zweiten Anschlussbereich (51) angeschlossen ist, wobei der Begrenzer und das Unterbrechungsmittel gleichzeitig ausgeschaltet sind, wenn ein Lichtbogen (100) zwischen der ersten Anschlusselektrode (40) und der zweiten Anschlusselektrode (50) geschaltet wird.
  5. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Überspannungsbegrenzer (2) elektrisch in Serie mit der Unterbrechungsvorrichtung (3) durch mindestens eine Schmelzverbindung (9, 8) verbunden ist, Antriebsmittel (10) eine Verschiebekraft (Fd) ausüben, die den Überspannungsbegrenzer (2) im Falle des Schmelzens der mindestens einen Schmelzverbindung verschiebt, wobei die Verschiebung des Begrenzers direkt auf den Betätigungsmechanismus (7) einwirkt, um die dritte bewegliche Lichtbogenschaltelektrode (60) zu verschieben und die permanente Öffnung der Kontakte (4, 6) hervorzurufen.
  6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Antriebsmittel (10) eine Feder umfassen.
  7. Vorrichtung nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass der Überspannungsbegrenzer (2) elektrisch mit dem zweiten Anschlussbereich (51) durch zwei Schmelzverbindungen (9, 8) verbunden ist, wobei eine erste Schmelzverbindung die Rolle des Unterbrechungsmittels gegen die Kurschluss-Wechsel- oder Gleichströme (9) spielt, wobei eine zweite Schmelzverbindung (8) im Falle einer Überhitzung des Begrenzers schmilzt.
  8. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass die zweite Schmelzverbindung (8) ein niedrigschmelzendes Schweißelement ist.
  9. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Überspannungsbegrenzer (2) einen Varistor (21) umfasst.
  10. Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass der Überspannungsbegrenzer (2) einen Varistor (21) umfasst, der in Serie mit einem Entlader (22) verbunden ist.
  11. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass ein Hochenergieunterbrecher (11) in Serie zwischen der ersten Anschlusselektrode (40) und dem ersten Anschlussbereich (41) angeschlossen ist, wobei der Hochenergieunterbrecher (11) derart geeicht ist, dass er unterbricht, wenn der von elektrischen Strömen mit einer größeren Energie als die energetische Auslöseschwelle durchquert wird.
  12. Vorrichtung nach Anspruch 11, dadurch gekennzeichnet, dass der Hochenergieunterbrecher Mittel umfasst, um auf den Betätigungsmechanismus (7) einzuwirken, um die permanente Öffnung der elektrischen Kontakte (4, 6) hervorzurufen.
  13. Vorrichtung nach Anspruch 12, dadurch gekennzeichnet, dass der Hochenergieunterbrecher (11) elektromagnetische Auslösemittel umfasst.
  14. Vorrichtung nach Anspruch 11 oder 12, dadurch gekennzeichnet, dass der Hochenergieunterbrecher (11) ein Schmelzelement umfasst.
  15. Vorrichtung nach einem der vorhergehenden Ansprüche 1 bis 14, dadurch gekennzeichnet, dass die dritte bewegliche Lichtbogenschaltelektrode (60) an die erste Anschlusselektrode (40) durch ein Isolierteil, das einen Entlader bildet, wenn die elektrischen Kontakte (4, 6) geschlossen sind, angeschlossen ist.
  16. Vorrichtung nach einem der vorhergehenden Ansprüche 1 bis 14, dadurch gekennzeichnet, dass die dritte bewegliche Lichtbogenschaltelektrode (60) mit der ersten Anschlusselektrode in Kontakt (40) ist, wenn die elektrischen Kontakte (4, 6) geschlossen sind.
  17. Vorrichtung nach Anspruch 16, dadurch gekennzeichnet, dass das Unterbrechungsmittel gegen die Kurzschluss-Wechsel- oder Gleichströme (9) abgeschaltet ist, wenn sich die dritte bewegliche Lichtbogenschaltelektrode (60) von der ersten Anschlusselektrode (40) entfernt, und wenn ein Lichtbogen (100) zwischen der ersten Anschlusselektrode (40) und der zweiten Anschlusselektrode (50) geschaltet wird.
EP08354006.2A 2007-02-01 2008-01-24 Vorrichtung zum Schutz gegen Überspannungen mit Unterbrecherkontakt, der selektive Unterbrechungsmittel umfasst Active EP1953787B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0700708A FR2912253B1 (fr) 2007-02-01 2007-02-01 Dispositif de protection contre les surtensions a contact mobile comprenant des moyens de deconnexions selectifs contre des courts-circuits

Publications (3)

Publication Number Publication Date
EP1953787A2 EP1953787A2 (de) 2008-08-06
EP1953787A3 EP1953787A3 (de) 2011-10-12
EP1953787B1 true EP1953787B1 (de) 2016-08-10

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Country Link
US (1) US20080186643A1 (de)
EP (1) EP1953787B1 (de)
CN (1) CN101236864B (de)
AR (1) AR065122A1 (de)
AU (1) AU2008200476B2 (de)
BR (1) BRPI0800086B1 (de)
ES (1) ES2602109T3 (de)
FR (1) FR2912253B1 (de)
RU (1) RU2446502C2 (de)
ZA (1) ZA200800238B (de)

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CA3034870C (en) * 2016-09-13 2023-07-04 Abb Schweiz Ag Disconnector device for a surge arrester and a protection assembly comprising a surge arrester connected to such a disconnector device
CN107731635B (zh) * 2017-01-09 2021-08-10 常州市创捷防雷电子有限公司 一种用于电涌保护器的后备断路保护器
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IT202100028448A1 (it) * 2021-11-09 2023-05-09 Zotup S R L Scaricatore di sovratensioni comprendente un disconnettore e relativa camera di estinzione/deionizzazione

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DE19834474A1 (de) * 1998-07-30 2000-02-10 Siemens Ag Einrichtung zum Kurzschlußschutz
US6072673A (en) * 1998-11-19 2000-06-06 Square D Company Medium to high voltage load circuit interrupters including metal resistors having a positive temperature coefficient of resistivity (PTC elements)
US6256183B1 (en) * 1999-09-09 2001-07-03 Ferraz Shawmut Inc. Time delay fuse with mechanical overload device and indicator actuator
DE10118746B4 (de) * 2001-04-17 2004-06-24 Siemens Ag Verfahren zum Betreiben eines Schaltgerätes mit einem zuschaltbaren Strombegrenzer und zugehörige Anordnung
FR2840448B1 (fr) * 2002-05-30 2004-07-23 Schneider Electric Ind Sas Dispositif de protection contre les surtensions
FR2846478B1 (fr) * 2002-10-25 2004-12-24 Schneider Electric Ind Sas Dispositif de protection contre les surtensions a electrode mobile
FR2871932B1 (fr) * 2004-06-18 2006-08-04 Schneider Electric Ind Sas Dispositif de protection contre les surtensions
CN2726190Y (zh) * 2004-09-17 2005-09-14 安徽赛普电力保护有限公司 大容量高压限流熔断器组合保护装置
US7697252B2 (en) * 2007-08-15 2010-04-13 Leviton Manufacturing Company, Inc. Overvoltage device with enhanced surge suppression

Also Published As

Publication number Publication date
AU2008200476B2 (en) 2010-11-25
CN101236864A (zh) 2008-08-06
US20080186643A1 (en) 2008-08-07
CN101236864B (zh) 2012-09-26
RU2446502C2 (ru) 2012-03-27
ZA200800238B (en) 2009-04-29
BRPI0800086A (pt) 2008-09-16
AU2008200476A1 (en) 2008-08-21
EP1953787A2 (de) 2008-08-06
RU2008103879A (ru) 2009-08-10
AR065122A1 (es) 2009-05-20
BRPI0800086B1 (pt) 2018-09-18
FR2912253A1 (fr) 2008-08-08
EP1953787A3 (de) 2011-10-12
ES2602109T3 (es) 2017-02-17
FR2912253B1 (fr) 2009-03-06

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