EP0548390B1 - Dispositif de déclenchement pour appareils de commutation electriques - Google Patents

Dispositif de déclenchement pour appareils de commutation electriques Download PDF

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Publication number
EP0548390B1
EP0548390B1 EP91122039A EP91122039A EP0548390B1 EP 0548390 B1 EP0548390 B1 EP 0548390B1 EP 91122039 A EP91122039 A EP 91122039A EP 91122039 A EP91122039 A EP 91122039A EP 0548390 B1 EP0548390 B1 EP 0548390B1
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EP
European Patent Office
Prior art keywords
tripping device
pressure
ignition
gas generator
propellant
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
EP91122039A
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German (de)
English (en)
Other versions
EP0548390A1 (fr
Inventor
Georg Dipl.-Phys. Haberl
Fritz Dipl.-Phys. Pohl
Hubert Dr. Dipl.-Phys. Grosse-Wilde
Hans-Ulrich Dr. Dipl.-Phys. Freund
Gerhard Altmann
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 DE59107899T priority Critical patent/DE59107899D1/de
Priority to AT91122039T priority patent/ATE139057T1/de
Priority to EP91122039A priority patent/EP0548390B1/fr
Priority to FI925694A priority patent/FI925694L/fi
Priority to NO92924908A priority patent/NO924908L/no
Publication of EP0548390A1 publication Critical patent/EP0548390A1/fr
Application granted granted Critical
Publication of EP0548390B1 publication Critical patent/EP0548390B1/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
    • H01H39/00—Switching devices actuated by an explosion produced within the device and initiated by an electric current
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H39/00—Switching devices actuated by an explosion produced within the device and initiated by an electric current
    • H01H39/002—Switching devices actuated by an explosion produced within the device and initiated by an electric current provided with a cartridge-magazine

Definitions

  • the invention relates to a triggering device for electrical switching devices by means of an ignitable explosive charge which triggers the switching device.
  • a resistor is switched into the circuit to be interrupted, which resistor is dimensioned such that it melts in the event of an overcurrent and thereby initiates an arc, the voltage of which drives a high current through a fuse .
  • trip times 100 to 120 microseconds can be achieved according to the document.
  • the detonating explosive charges are dangerous to the environment and cannot be exactly reproduced. With conventional explosive charges, short, high pressure peaks occur (explosive conversion, short reaction time), which lead to the deformation of the drive piston and therefore prevent it from being actuated several times.
  • No. 4,617,436 also discloses a triggering device for electrical switching devices by means of an ignitable explosive charge which triggers the switching device.
  • the explosive charge is formed by a pyrotechnic gas generator, which can be used as an energy store for switching a switching device on and off.
  • the energy is transferred to the switchgear via a cylinder that can be moved in two directions through the explosive charge.
  • the document deals with the reloading devices for the gas cartridges for both the switch-on and the switch-off process.
  • information about the operative connection of the cylinder with the movable contact with a view to triggering as quickly as possible is not given.
  • the invention is intended to improve a triggering device of the type mentioned above in such a way that with controlled explosive charge and thus increased safety, similarly short triggering times can be achieved with little technical effort.
  • This is achieved in a simple manner in that the explosive charge is formed by a pyrotechnic gas generator which acts on a pressure piston unit which is directly coupled to the movable contact part of the switching device.
  • a pyrotechnic gas generator which acts on a pressure piston unit which is directly coupled to the movable contact part of the switching device.
  • Such a device is generally ignited depending on the current.
  • the gas generator uses pyrotechnic substances with longer reaction times than with conventional explosive charges ( t (pyrotechn.) / T (explosive charge) 10: 1), so that considerably lower pressure peaks occur with a comparable pressure-time area and thus deformations on the pressure piston or on the switch mechanism can be avoided. As a result, the pressure pistons can be used several times.
  • the movable contact part is part of a commercially available circuit breaker.
  • the resistance and also the igniter must be replaced by the specialist personnel after each triggering.
  • the gas generator or the gas generator is stored in a magazine with pressure pistons. It is advantageous here if an automatic ejection and an automatic refill is provided for the magazine after the release.
  • the gas generator and / or the pressure piston are designed in such a way that after shock-like Reaching a predetermined force on the pressure piston results in a predetermined reduction in force.
  • the pressure piston opens pressure relief openings in the pressure cylinder depending on the path. Another simple type of pressure limitation has been found when pressure limitation pockets are provided in the pressure cylinder. In order to be able to better determine the pressure development of the propellant charge after it has ignited, it is advantageous if the propellant charge of the gas generator is designed as a compact of different grain size.
  • the pressing body can consist of two partial bodies.
  • the wall of the printing cylinder is made semi-permeable with very fine pores in whole or in parts.
  • the outer wall parts are impermeable to moisture.
  • the pressure piston outer and pressure cylinder inner walls are made of corrosion-resistant material, such as a ceramic layer.
  • the jet initiator consists of a cylindrical, thin-walled sleeve, is embedded in the primer and the end opposite the primer is closed with a thin sheet metal foil designed as a space membrane. If the end of the sleeve having the sheet metal foil is designed as a flow nozzle, the hot vapors resulting from the implementation of the igniter pill can flow onto the propellant charge in a directional high-speed flow. Providing a line-shaped lighter in the propellant charge with quick and even ignition results in an inexpensive design.
  • the line-shaped igniter can consist of a resistance wire with an applied thin layer of high-temperature-resistant safety explosive.
  • An end face initiation for example by means of a meandering metallic resistance layer, has proven to be advantageous if the propellant charge is arranged flat and a quick and simultaneous ignition is to take place via the flat side.
  • a lateral surface initiation is advantageous for longer cylindrical propellant charges, with rapid ignition of the propellant charge being ensured by simultaneous ignition from the lateral surface. If the end face ignition is provided, become axially parallel in the longitudinal direction If cavities are provided, there is the advantage that the propellant charge reacts quickly by reacting further from the cavities. If the propellant charge is provided with annular circumferential grooves that are open to the ignition side when the lateral surface ignition is provided, the burn-up is improved with regard to volume detection and speed.
  • the network with terminals 1, 2 is above switch 3, in the present case In the case of a circuit breaker, and via a current and voltage detection 4 on the consumer, in the present case a branch with a motor 5.
  • the detection device 4 can consist, for example, of a current and voltage converter for each phase.
  • the network states occurring here are evaluated with regard to steepness, frequencies, power and duration and, depending on the rapid rise and the short-circuit current to be expected, a pulse is given to a pyrotechnic drive 6.
  • the pyrotechnic drive is activated by an electronically operated ignition device.
  • the external voltage-dependent ignition method using a fuse element according to DE-AS 12 02 890 is subject to its scatter in the I 2 t melting value and requires a specific short-circuit current time interval for tripping.
  • the adaptation of a very quickly reacting fuse element to operating current conditions seems difficult, moreover the fuse element has to be replaced after each switch-off, whereby the contact must be very low-resistance (1 m).
  • the pyrotechnic drive 6 consists of a gas generator which acts on a pressure piston unit coupled to the movable contact part of the switching device.
  • the switch shown in FIG 2 consists of the movable contact part 7, which rests on the counter-contact part 9 by means of spring force 8.
  • the contact pads have the reference numerals 10, 11.
  • the supply lines are designated 12, 13.
  • An arc extinguishing device 14 extinguishes the arc that occurs when the switch is opened.
  • magnetic forces of the magnetic field built up between the movable and counter-contact part overcome the contact force applied by the spring 8 and thus open the switch.
  • the other tripping devices of this switch are not shown in the drawing.
  • a pressure piston unit 15 with an adjustable operating point is actuated by the detection device 4 via the initial ignition and the propellant charge.
  • the pressure piston 16 presses with high force on the movable contact part 7 and opens the contact with high Acceleration.
  • the force is applied by the combustion of a pyrotechnic propellant charge contained in the pyrotechnic gas generator 17.
  • the propellant charge is ignited by an igniter, which is also part of the gas generator 17.
  • the propellant charge must be burned off in such a way that a high burn rate is achieved in the shortest possible time.
  • the erosion must not start explosively, since the associated impact forces could lead to the material strength of the piston or piston housing being exceeded.
  • the most favorable time profile of the force acting on the piston to be realized by the time profile of the erosion is shown as an example in FIG. 3 for a commercially available circuit breaker with short-circuit release. This force-time curve changes only slightly at operating temperatures in the switch housing 18 approx. 10 ° C to approx. 150 ° C. This is achieved by a suitable composition of the propellant charge of the pyrotechnic gas generator.
  • material-related and structural dimensions for the pyrotechnic element are proposed for implementation, which are described in detail in the following section.
  • the design of the pyrotechnic gas generator 17 as a cartridge propellant charge allows the pressure piston unit 15 and the gas generator 17 to be separated.
  • the gas generator is introduced as a charge cartridge into the pressure piston unit via an automatic charging system with an ignition device 19 and positioned on the piston. This is done by a locking piece with a lock 20.
  • the burned-out cartridge is removed in a known manner via a pull-out claw, which is not shown, and a new one is supplied from the magazine 21.
  • the piston is moved back to its starting position by a return spring, not shown.
  • An electrical center contact 22 represents the connection to the initial ignition.
  • Line 23 shows the pyrotechnic force on the left and the time on the right.
  • Line 23 is shown as a sudden onset of force. With line 24, the force required exceeds the permissible maximum force. Both force profiles lead to possible damage to the switching element.
  • Line 25 shows the force course to be aimed for, which can be achieved with the following means.
  • the line for the maximum permissible force is labeled 25a.
  • the pressure piston unit shown in FIG. 4 represents the pressure piston 16 in the rest position.
  • pressure limiting pockets 32 are provided on the inner wall 30 of the pressure cylinder space 31, which may be designed as buckling or space diaphragms and, if the internal pressure setpoint is exceeded during combustion, e.g. can increase the gas space at a high ambient temperature as a result of an increased burn rate. This is done in two stages.
  • the membrane bulges out at pressure values that are only slightly above the target range.
  • the additional volume released thereby slows down the increase in the burn-up rate.
  • the pressure limitation is approximately 2 kbar. With long-term storage under a very high ambient temperature, a slight decomposition of the propellant charge is possible. This releases reaction gases which can slowly increase the pressure inside the charge cartridge and in turn accelerate the decomposition process. As a result, this feedback influence could lead to the uncontrolled implementation of the propellant charge.
  • the wall of the piston chamber is designed to be semi-permeable, in whole or in part, with fine pores, see FIG. 6, in such a way that the decomposition gases can gradually escape through the pores and the internal pressure remains limited to non-critical values, and at the same time moisture from outside to inside cannot penetrate (condensation in the micro-cavities of the pores).
  • the wall of the printing cylinder 27 is divided into two parts here.
  • One part represents a porous wall 33 and the other a moisture-impermeable part 34.
  • the propellant powders in question generate nitrous gases (NO, NO 2 , NO x ), which have a corrosive effect in a moist atmosphere. Therefore, the combustion chamber side surfaces of the piston and combustion chamber wall should be made of corrosion-resistant material. For example, a ceramic layer or sputtered corrosion-resistant metal oxide layers can be used.
  • the following powder mixtures have proven particularly suitable for long-term storage stability under ambient temperatures up to 150 °: B / KNO 3 , TiH x / Ba (NO 3 ) 2 and Zr / Ba (NO 3 ) 2 .
  • the powders mentioned are not very reactive (hence the high temperature stability). If necessary, the burning rate can be increased even further with additives.
  • Quantities in the range of high-energy explosives such as octogen are suitable for this.
  • the propellant charge mixture from the above-mentioned powders, optionally with additives, is in the form of granules.
  • These granules consist of a mixture of two grain sizes with a focus on the size distribution around the values approx. 10 to 30 ⁇ m.
  • the advantage of this double distribution is that due to the ignition process, the particle fraction with the smaller grain size burns off very quickly, thus ensuring a very rapid increase in pressure in the piston chamber.
  • the powder fraction with the larger grain size burns more slowly and in this way ensures that the pressure in the piston chamber is maintained during the piston ejection in the decisive acceleration phase (piston stroke) up to approx. 60% of the end stroke that determines the short-circuit interruption.
  • the combustion process is shown schematically in FIG. 7.
  • the mass fraction of the smaller powder grains determines the steepness of the pressure increase in the piston chamber, i.e. the time until the pressure maximum is reached.
  • the diagram in FIG. 7 shows the pressure in the piston chamber on the left and the piston stroke on the right.
  • the pressure curve in the piston chamber determined by the double distribution of the powder grain sizes, is represented by line 35, the smaller powder grain size fraction KGV1 and the larger powder grain size fraction KGV2 being designated.
  • the pressure reduction across the relief openings is shown in dashed lines.
  • the pressed propellant powder body can advantageously be equipped with open cavities that face the ignition side.
  • FIGS. 11 and 12 show annular grooves 36 or cylindrical cavities 37 parallel to the axis, which influence the burn-off in a suitable manner after volume detection and speed. They are intended for surface or front surface ignition.
  • propellant charge body which has a favorable effect on the burn-up, is a large-pored or cavity-filled compact, the pore size or cavity diameter of which gradually decreases from the point of ignition.
  • the ignition process must achieve a high burn rate in a short time without initiation. This can be achieved through various measures:
  • Jet initiation igniter (see FIG 8) An electrical ignition pulse of high power ignites a high-temperature-resistant igniter pill, which is embedded in a cylindrical thin-walled sleeve 38.
  • the squib 39 is located at the upper end of the sleeve 38.
  • the sleeve is closed at the lower end 40 with a thin sheet metal foil, which can be designed as a space membrane.
  • the lower part 40 of the sleeve 38 can be designed as a flow nozzle, so that they result from the implementation of the igniter pill, in a directed high-speed flow onto the propellant charge stream.
  • the whirling up of the powder by the hot swaths or the penetration of the hot swath flow into the cavities of the propellant charge body favors the rapid onset of a high burn rate.
  • Line-shaped lighters (see FIG. 9) With this type of ignition, a linear reactive element 41, for example resistance wire with an applied thin layer of high-temperature-resistant safety explosive, is embedded in the propellant charge.
  • a linear reactive element 41 for example resistance wire with an applied thin layer of high-temperature-resistant safety explosive
  • the thickness of the explosive layer is far below the limit thickness for detonative implementation (see NONEL).
  • the resistance wire evaporates. This in turn brings about a practically spontaneous conversion of the explosive layer into hot vapors, which ignite the propellant charge at a high rate of burn-off along the cylindrical contact surface.
  • the propellant charge can be ignited over a large area on the end face by means of a metallic resistance layer 42, for example in the form of a meander, with an electrical high-power pulse (see FIG. 10).
  • Resistance layers of this type can be applied to a ceramic carrier body, for example, by sputtering technology. This is in close mechanical contact with a flat ignition charge of low layer thickness, which can consist of the same material as the propellant charge.
  • the cylindrical propellant charge can also be ignited via the cylindrical surface 42. In principle, this can be done in the manner described for the end face initiation.
  • a modified ignition is designed as follows: the transfer set 43, which is applied to the inner wall of the propellant charge cartridge, for example as a thin layer of explosive, is ignited electrically by a resistance wire - FIG. 11 - which surrounds the transfer set in a ring, or a resistance layer, see FIG. 10.
  • the resistance wire can, as shown in FIG. circulate the thin cylindrical transfer layer 43 in a single or (not shown) multiple helical manner.

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  • Automotive Seat Belt Assembly (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Transmitters (AREA)
  • Measuring Fluid Pressure (AREA)
  • Keying Circuit Devices (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Saccharide Compounds (AREA)
  • Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
  • Eye Examination Apparatus (AREA)

Claims (21)

  1. Dispositif de déclenchement d'appareils électriques de coupure (3) au moyen d'une charge (17) explosive pouvant être allumée, qui amène l'appareillage électrique à se déclencher, caractérisé en ce que la charge explosive est formée d'un générateur (17) de gaz pyrotechnique, qui agit sur une unité (15) de piston de pression couplée directement à la pièce mobile (7) de contact de l'appareil de coupure (3).
  2. Dispositif de déclenchement suivant la revendication 1, caractérisé en ce que la pièce (7) mobile de contact fait partie d'un disjoncteur (3) usuel.
  3. Dispositif de déclenchement suivant la revendication 1 ou 2, caractérisé en ce que le générateur (3) de gaz ou le générateur (3) de gaz avec piston (16) de pression est alimenté par un magasin.
  4. Dispositif de déclenchement suivant la revendication 3, caractérisé en ce qu'il est prévu une éjection automatique et un remplissage automatique lors de l'alimentation par magasin après le déclenchement.
  5. Dispositif de déclenchement suivant l'une des revendications précédentes, caractérisé en ce que le générateur (3) de gaz et/ou le piston (16) de pression sont formés de telle sorte qu'une réduction prescrite de la force sur le piston (16) de pression s'effectue après que cette force a atteint brusquement une force prescrite.
  6. Dispositif de déclenchement suivant la revendication 5, caractérisé en ce que le piston (16) de pression ouvre, en fonction de sa course, des ouvertures (29) de détente de pression dans le cylindre (27) de pression.
  7. Dispositif de déclenchement suivant la revendication 5, caractérisé en ce qu'il est prévu des poches (32) de limitation de pression dans le piston (27) de pression.
  8. Dispositif de déclenchement suivant la revendication 5, caractérisé en ce que la charge propulsive du générateur (17) de gaz est sous la forme de comprimés de granulométries différentes.
  9. Dispositif de déclenchement suivant la revendication 8, caractérisé en ce que la dimension de pores diminue graduellement depuis le lieu d'allumage.
  10. Dispositif de déclenchement suivant l'une des revendications précédentes, caractérisé en ce que la paroi (31) du cylindre (27) de pression est à pores ultra-fins et semi-perméable complètement ou dans des zones partielles.
  11. Dispositif de déclenchement suivant la revendication 10, caractérisé en ce que les parties extérieures de paroi sont imperméables à l'humidité.
  12. Dispositif de déclenchement suivant la revendication 11, caractérisé en ce que les parois extérieure et intérieure du piston de pression sont en un matériau résistant à la corrosion comme en une couche de céramique.
  13. Dispositif de déclenchement suivant l'une des revendications précédentes, caractérisé en ce qu'il est prévu une amorce provoquant un jaillissement pour l'allumage de la charge propulsive.
  14. Dispositif de déclenchement suivant la revendication 13, caractérisé en ce que l'amorce provoquant un jaillissement est constituée d'une douille (38) cylindrique à paroi mince, dans laquelle est enrobée la pilule (39) d'allumage et qui est fermée à son extrémité en face de la pilule (39) d'allumage par une feuille mince de tôle sous la forme d'une membrane de rupture.
  15. Dispositif de déclenchement suivant la revendication 14, caractérisé en ce que l'extrémité de la douille (38), qui comporte la feuille de tôle, est sous la forme d'une tuyère (40) d'écoulement.
  16. Dispositif de déclenchement suivant l'une des revendications précédentes sauf les revendications 13 à 15, caractérisé en ce qu'un allumeur (41) linéaire est enrobé dans la charge (17) propulsive.
  17. Dispositif de déclenchement suivant la revendication 16, caractérisé en ce que l'allumeur linéaire (41) est constitué d'un fil de résistance sur lequel est déposée une couche mince d'explosif de sûreté à l'épreuve des températures élevées.
  18. Dispositif de déclenchement suivant l'une des revendications précédentes sauf les revendications 13 à 17, caractérisé en ce qu'il est prévu un amorçage par surface frontale par une couche (42) de résistance métallique sinueuse.
  19. Dispositif de déclenchement suivant l'une des revendications précédentes sauf les revendications 13 à 18, caractérisé en ce qu'il est prévu un amorçage par la surface latérale.
  20. Dispositif de déclenchement suivant la revendication 5, caractérisé en ce que la charge propulsive comporte des cavités (37) ouvertes du côté d'allumage, parallèles et s'étendant dans le sens de la longueur, lorsqu'il est prévu un amorçage par surface frontale.
  21. Dispositif de déclenchement suivant la revendication 5, caractérisé en ce que la charge propulsive comporte, lorsqu'il est prévu un amorçage par la surface latérale, des gorges (36) faisant le tour en anneau et ouvertes du côté d'allumage.
EP91122039A 1991-12-20 1991-12-20 Dispositif de déclenchement pour appareils de commutation electriques Expired - Lifetime EP0548390B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE59107899T DE59107899D1 (de) 1991-12-20 1991-12-20 Auslöseeinrichtung für elektrische Schaltgeräte
AT91122039T ATE139057T1 (de) 1991-12-20 1991-12-20 Auslöseeinrichtung für elektrische schaltgeräte
EP91122039A EP0548390B1 (fr) 1991-12-20 1991-12-20 Dispositif de déclenchement pour appareils de commutation electriques
FI925694A FI925694L (fi) 1991-12-20 1992-12-15 Utloesningsanordning foer elektriska kopplingsanordningar
NO92924908A NO924908L (no) 1991-12-20 1992-12-18 Utloeserinnretning for elektriske koblingsapparater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP91122039A EP0548390B1 (fr) 1991-12-20 1991-12-20 Dispositif de déclenchement pour appareils de commutation electriques

Publications (2)

Publication Number Publication Date
EP0548390A1 EP0548390A1 (fr) 1993-06-30
EP0548390B1 true EP0548390B1 (fr) 1996-06-05

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EP91122039A Expired - Lifetime EP0548390B1 (fr) 1991-12-20 1991-12-20 Dispositif de déclenchement pour appareils de commutation electriques

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Country Link
EP (1) EP0548390B1 (fr)
AT (1) ATE139057T1 (fr)
DE (1) DE59107899D1 (fr)
FI (1) FI925694L (fr)
NO (1) NO924908L (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19810982A1 (de) * 1998-03-13 1999-09-16 Abb Research Ltd Strombegrenzer und Schnellerder mit leitfähigem Pulver
DE19816506A1 (de) * 1998-04-14 1999-10-21 Abb Research Ltd Leistungsschalter

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Publication number Priority date Publication date Assignee Title
DE19601639A1 (de) * 1996-01-18 1997-07-24 Abb Patent Gmbh Auslöseeinrichtung für Hoch-, Mittel- oder Niederspannungsschaltanlagen bei Auftreten eines Störlichtbogens
DE19938422A1 (de) * 1999-08-13 2001-02-15 Abb Patent Gmbh Erdungsschalter
DE102005044906A1 (de) * 2005-09-15 2007-03-22 Siemens Ag Schalteinrichtung und elektrisch ansteuerbarer Aktor, insbesondere zur Schnellabschaltung eines Kurzschlussstromes
US10566160B2 (en) * 2015-05-18 2020-02-18 Gigavac, Llc Passive triggering mechanisms for use with switching devices incorporating pyrotechnic features
US11239038B2 (en) 2015-05-18 2022-02-01 Gigavac, Llc Mechanical fuse device
FR3075460B1 (fr) * 2017-12-14 2020-01-10 Schneider Electric Industries Sas Appareil de protection electrique comportant un systeme d'actionnement pyrotechnique
JP7441605B2 (ja) * 2018-01-02 2024-03-01 ギガバック リミテッド ライアビリティ カンパニー パイロテクニック式切断機能一体型接触器装置
JP7266249B2 (ja) 2018-03-20 2023-04-28 パナソニックＩｐマネジメント株式会社 電路遮断装置
US11276535B2 (en) * 2018-08-28 2022-03-15 Gigavac, Llc Passive triggering mechanisms for use with switching devices incorporating pyrotechnic features
US11443910B2 (en) 2019-09-27 2022-09-13 Gigavac, Llc Contact levitation triggering mechanisms for use with switching devices incorporating pyrotechnic features
FR3103309B1 (fr) 2019-11-19 2023-10-27 Gigavac Llc Dispositifs de commutation incorporant un disque de rupture

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GB643218A (en) * 1948-05-20 1950-09-15 Reyrolle A & Co Ltd Improvements relating to spring-operated electric circuit-breakers
CH470069A (de) * 1960-05-16 1969-03-15 Emery Jr Lindberg John Betätigungsvorrichtung
CH604356A5 (fr) * 1976-11-03 1978-09-15 Bbc Brown Boveri & Cie
DD211202A1 (de) * 1982-11-12 1984-07-04 Elektroenergieanlagenbau Veb K Antrieb fuer elektrische schaltgeraete
US4617436A (en) * 1984-10-26 1986-10-14 Electric Power Research Institute, Inc. Actuator for an electrical circuit interrupter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19810982A1 (de) * 1998-03-13 1999-09-16 Abb Research Ltd Strombegrenzer und Schnellerder mit leitfähigem Pulver
DE19816506A1 (de) * 1998-04-14 1999-10-21 Abb Research Ltd Leistungsschalter
DE19816506B4 (de) * 1998-04-14 2008-04-30 Abb Research Ltd. Leistungsschalter

Also Published As

Publication number Publication date
DE59107899D1 (de) 1996-07-11
ATE139057T1 (de) 1996-06-15
FI925694A7 (fi) 1993-06-21
FI925694L (fi) 1993-06-21
FI925694A0 (fi) 1992-12-15
NO924908L (no) 1993-06-21
NO924908D0 (no) 1992-12-18
EP0548390A1 (fr) 1993-06-30

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