EP2230678A2 - contacteur résistante à la formation d'arc - Google Patents

contacteur résistante à la formation d'arc Download PDF

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Publication number
EP2230678A2
EP2230678A2 EP20100001056 EP10001056A EP2230678A2 EP 2230678 A2 EP2230678 A2 EP 2230678A2 EP 20100001056 EP20100001056 EP 20100001056 EP 10001056 A EP10001056 A EP 10001056A EP 2230678 A2 EP2230678 A2 EP 2230678A2
Authority
EP
European Patent Office
Prior art keywords
contactor
contact
arc
arcs
protective cover
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.)
Granted
Application number
EP20100001056
Other languages
German (de)
English (en)
Other versions
EP2230678A3 (fr
EP2230678B1 (fr
Inventor
Robert Kralik
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.)
Schaltbau GmbH
Original Assignee
Schaltbau GmbH
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 Schaltbau GmbH filed Critical Schaltbau GmbH
Publication of EP2230678A2 publication Critical patent/EP2230678A2/fr
Publication of EP2230678A3 publication Critical patent/EP2230678A3/fr
Application granted granted Critical
Publication of EP2230678B1 publication Critical patent/EP2230678B1/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
    • 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
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • 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
    • H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
    • H01H9/443—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using permanent magnets

Definitions

  • the invention relates to a contactor for DC and AC operation with at least one contact point with a fixed contact and a movable contact, which forms an arc when opening the contacts, and with an arc quenching device for extinguishing the arcs.
  • Such contactors are used for example in railway operation for switching loads and for interrupting circuits with high currents or high voltages.
  • switching operation i.
  • an arc is created between the fixed contact and the movable contact.
  • This arc maintains the flow of current between the contacts.
  • the arc releases a large amount of heat, which leads to the burning of the contacts and thus can reduce the life of the contactor.
  • the entire area affected by the influence of the arc is subjected to very high thermal loads. It is therefore a quick extinction of the arc required.
  • a contactor for use in DC operation with a constant current direction usually has permanent magnetic blowing fields, which are arranged so that their field direction is perpendicular to the arc.
  • the Blasfelder exert on the arc of a force, the Lorentz force, through which the arc is driven towards an extinguishing device. That's how it shows DE 10 2007 023 326 B4 an electrical switching device with a switching contact and two adjacent to the switching contact arranged magnetic body.
  • the magnetic bodies drive arcs generated during switching into an arc quenching device.
  • the coil only at the turn-off, i. when opening the contactor, activate and turn on the circuit. Since the inductances of the puff coils counteract sudden increases in current, the current transfer through the puff coils takes place with a time delay (E-function). The electromagnetic field is also built up with a time delay. This prolongs the residence time of the arcs in the contact zone of the contactor.
  • the DE 10 2006 035 844 B4 shows a contactor for DC and AC operation.
  • the contactor comprises adjacent to the contact points arranged permanent magnets and coils that drive the arcs generated during switching in a quenching device.
  • the coils are activated by the arcs.
  • DE 298 23 717 U1 discloses a switch having a pad associated therewith a permanent magnet and a blow coil that blow and extinguish an arc generated during switching. Again, the coil is activated by the switching arc.
  • the invention provides that adjacent to the arc quenching device of the contactor a collecting device for the generated by the switching arcs in the contactor Abbrandpitate is arranged. If the switching arcs are blown into the arc quenching device, they produce burnup particles there. These burnup particles can fall on the contact points of the contactor, whereby the contact and thus the ability to transmit electricity is disturbed. This leads to unacceptably high thermal loads on the contact points, which can ultimately damage the contactor.
  • the collecting device which is arranged between the arc quenching device and the contact bridge, the falling Abbrandpgregate be collected so that they can not fall on the contact points. It will therefore Dirt at the contact points and thus damage to the contactor avoided.
  • the contactor has a double interruption, wherein the two contact points of the double interruption are constructed mirror-symmetrically to each other and the movable contacts are arranged on a contact bridge.
  • the contactor thus comprises a second contact point which is identical to the first contact point and also has a fixed contact, a movable contact, an arc guide plate associated with one of the contacts, and a blow coil.
  • the collecting device is designed as a collecting trough superior to the contact points. This enables a safe collection of burn-off particles, especially in large shooters with high switching load.
  • the collecting trough may be designed to taper in a V-shaped manner on its underside facing the contact bridge.
  • the drip pan is thus designed to be very narrow at the bottom, so that switching arcs at the contact points are blown through the blower fields on the drip pan on both sides in the direction of the extinguishing devices. The switching arcs do not linger on the underside of the tank.
  • the drip pan is arranged protected by metal elements on the side walls of the housing of the contactor. Since the arcs can overflow such metal elements, without damaging them, a secure attachment of the tub on the side walls of the housing of the contactor is possible.
  • the trough may have attachment pins that are secured in the sidewalls of the housing. The mounting pins are surrounded by the metal elements and so protected from the arcs.
  • the collecting device can also be provided to form the collecting device as a U-shaped deflecting plate, wherein the U-shaped deflecting plate is arranged on the contact bridge, so that the legs of the U-shaped deflecting plate extend substantially perpendicular to the longitudinal extent of the contact bridge.
  • This deflector has only a small footprint, so it is also in small shooters with smaller air and Creepage distances can be used easily.
  • the burned particles strike the inside area of the deflector plate and drop sideways past the deflector plate out of the area of the contact bridge.
  • the distance between the legs of the U-shaped Abweisblechs is slightly larger than the distance between the contact points facing the ends of the arc guide.
  • the legs of the U-shaped Abweisblechs come to rest in the closed state of the contactor, in which the movable contacts and the fixed contacts of the contact points to lie in the air gaps between the arc guide and the respective associated fixed contact.
  • a secure closing of the protection is possible despite the U-shaped Abweisblechs.
  • Yet another embodiment provides that the region in which a switching rod of a drive of the contact bridge emerges from the drive is provided with a protective covering.
  • a protective covering Due to the resulting when opening the contact points of the contactor switching arcs is produced in the interior of the contactor, for example in an arc quenching device in which the arcs are blown by means of the Blasfelder combustion.
  • the protective sheath is provided.
  • a bellows may be mounted around the exit area of the shift rod. This is especially relevant for a horizontal installation of the contactor, in which the arc quenching device is arranged over the contact points.
  • the contactor may further comprise at least one blow coil for generating an electromagnetic blow field and a protective cover made of an arc-resistant material, e.g. Ceramic, wherein the blow coil is disconnected in the closed state of the contactor from the circuit of the contactor and when opening the contactor in the circuit of the contactor is switched on and the protective cover in the area of the contactor, in which when opening the contacts and when connecting the blinding coil forms an arc is arranged.
  • a blow coil for generating an electromagnetic blow field
  • a protective cover made of an arc-resistant material, e.g. Ceramic
  • the protective cover can be used to prevent damage to the contactor due to the lingering arcing. As a result, no damage is caused to the contactor and the service life of the blower coil during the time that the electromagnetic blower field of the blower coil is being built up Contactor can be extended.
  • ceramic such as steatite or cordierite
  • an arc guide plate is arranged adjacent to one of the contacts, which is separated by an air gap from the contact, the blow coil is electrically conductively connected to the arc guide plate and the contact, so that the blow coil by commutation of a switching arc can be activated on the arc guide plate, and the protective cover is arranged in the region of the air gap.
  • the blow coil Since the current is passed through the blow coil only gradually (after an E-function), the differential currents to the main circuit total current are realized by parallel to the coil forming current paths. This results in short-lived arcs that span the air gap between the arc guide plate and the associated contact.
  • the protective cover located in this area prevents damage to the contactor. At the time of full current transfer through the puff coils, the arcs in the area of the ceramic protective cover will be extinguished.
  • the arc guide plate and the associated contact are arranged in a V-shape with each other, wherein the arc guide plate forms a first leg of the Vs and the associated contact of the second leg of the Vs, so that the air gap adjacent to the tip of the Vs is arranged, the blower coil is disposed between the arc guide plate and the associated contact and the protective cover between the air gap and the blow coil is arranged. This creates the arc in an area in which no sensitive components are arranged. The blow coil is protected by the arc guide plate, the associated contact and the protective cover.
  • a simple commutation of the switching arc to activate the coil can be made possible by the fact that between the arc guide plate and the associated contact adjacent to the air gap a Primärblas noticed is arranged, which is at least partially surrounded by the protective cover.
  • a Primärblas for example, a permanent magnet or a permanent current-carrying coil can be used. Since the Primärblas issued is adjacent to the air gap and thus located very close to the contact point, it can immediately on a resulting Acting arc and thereby enable the commutation of the arc on the arc guide plate. Due to the protective lining, the primary blowing device is well protected from the switching arc and the arc which arises in the air gap.
  • Yet another variant provides that the arc guide plate is arranged adjacent to the fixed contact of the contact point and the blow coil is arranged between the fixed contact and the arc guide plate.
  • the protective cover has a groove, which engages in a guide rail of a housing of the contactor, and that the protective cover is attached to the housing.
  • the groove in the protective cover and the guide rail on the housing of the contactor which is preferably arranged on the side wall of the housing, the position of the protective cover is fixed to the housing of the contactor.
  • the protective cover can thus not be mounted in a wrong position.
  • a simple attachment of the protective cover to the housing of the contactor is possible.
  • the guide rail of the housing can be glued to the groove of the protective cover.
  • the side walls of a housing of the contactor are provided in the region of at least one contact point with a reinforcement of an arc-resistant material.
  • a reinforcement of an arc-resistant material For example, if the contactor is in the critical current range, i. operated at low currents but high voltages and thus small driving forces for the arcs, the arcs are not immediately blown away from the contact point. It can then happen that the arcs burn in the housing wall and cause damage. The reinforcement avoids these damages.
  • reinforcing plates of arc-resistant materials such as ceramics such as steatite or cordierite, are provided.
  • Fig. 1 is a perspective view of the interior of a contactor 1 is shown.
  • the contactor comprises two contact points 2, 3, each with a fixed contact 4, 5 and a respective movable contact 6, 7.
  • the movable contacts 6, 7 of the two contact points are arranged on a common contact bridge 8.
  • the contact bridge 8 can be moved by a magnetic drive (not shown) and from a closed state of the contactor 1, in which the movable contacts 6, 7, the fixed contacts 4, 5 touch and thus the contact points 2, 3 are closed, are transferred to an open position , In the open position, the movable contacts 6, 7 are separated from the fixed contacts 4, 5. Due to the high currents and high voltages that are connected to the contactor, when opening the contact points switching arcs 15, 16, which extend between the respective fixed contact 4, 5 and the associated movable contact 6, 7.
  • an arc guide plate 9, 10 Adjacent to the fixed contacts 4, 5, an arc guide plate 9, 10 is arranged at each contact point 2, 3.
  • the arc guide plates 9, 10 are each insulated by an air gap 11, 12 of the respective fixed contact 4, 5.
  • the arc guide plates 9, 10 are bent, so that they form a V-shaped arrangement with the contact rail of the respective fixed contact 4, 5.
  • the arc guide plates 9; 10 are formed so that they form between the contact points 2, 3 a Lichtbogenleitschacht 19 which extends substantially perpendicular to the longitudinal extent of the contact bridge 8 and through which the arcs 15 or 16 (depending on the arc direction) by means of the Blasfelder the Primärblas adopted and the bladders 17th , 18 are blown toward an arc quenching device 24.
  • the arc guide plates 9 expand; 10.
  • Adjacent to the arc guide plates 9; 10, the arc quenching device 24 is arranged.
  • a primary blowing device 13, 14 is arranged at each of the contact points 2, 3.
  • the Primärblas owneden 13, 14 are formed as permanent magnets. It would also be conceivable, however, to use permanent current-carrying blow coils instead of the permanent magnets.
  • the primary blowing devices 13, 14 are arranged in the contactor such that their magnetic field is perpendicular to the switching arcs 15, 16 arising when the contact points 2, 3 are opened and perpendicular to the longitudinal extent of the contact bridge 8.
  • the contactor 1 further comprises two blower coils 17, 18, which are also arranged in the V-shaped region between the respective fixed contact 4, 5 and the associated arc guide plate 9, 10.
  • the blow coils 17, 18 are further from the contact point than the respective primary blower 13, 14.
  • the first blow coil 17, which is associated with the first contact point 2 is electrically conductive with the fixed contact 4 of the contact point 2 and the arc guide plate 9 arranged adjacent thereto connected. Since the contactor is preferably mirror-symmetrical to a plane extending perpendicular to the longitudinal extent of the contact bridge 8 between the two contact points 2, 3, the contact point 3 has the same components as the contact point 2. Therefore, the second blow coil 18 is electrically conductive with the fixed contact. 5 the second contact point 3 and connected to the associated arc guide plate 10. Again, the primary blowing device 14 is preferably located closer to the contact point 3 than the blow coil 18th
  • the primary blowing device 13 arranged at the contact point 2 is assigned a pole plate pair 20.
  • the two pole plates of the Polplattencrus 20 are located on opposite sides of the contact bridge. 8
  • the second primary blowing device 14 is also assigned a pair of pole plates 21 whose pole plates are located on opposite sides of the contact bridge 8.
  • Fig. 1 is at each of the contact points 2, 3 only one pole plate of the Polplattenpare 20; 21 to see.
  • the pole plates of the pole plate pairs 20; 21 are made of magnetizable material and are polarized by the Primärblas owneden 13, 14 and generate a Primärblasfeld.
  • the pole plate pairs 20; 21 are formed so that the magnetic fields generated by them penetrate the region of the contact points 2, 3.
  • first blow coil 17 and the second blow coil 18 is each a Polplattencru 22; 23 assigned.
  • the pole plates of the pole plate pairs 22; 23 are shaped so that they especially the area of the arc guide shaft 19 and the arc guide 9; 10 overreach. Since the puffing coils 17, 18 are activated only when an arc root point of an arc jumps over one of the arc guide plates 9, 10, the electromagnetic blowing fields must act primarily in this area.
  • a protective cover 25, 26 are arranged at each of the two contact points 2; 3 is adjacent to the air gap 11; 12 .
  • the protective cover 25, 26 is disposed between the air gap 11, 12 and the other components of the contactor 1, so the Primärblas addresseden 13, 14 and the blow coils 17, 18 and extends from the respective fixed contact 4, 5 upwards to the respective arc guide plate. 9 , 10, so that a closed space is formed by the protective coverings 25, 26, the fixed contacts 4, 5 and the respective arc guide plates 9, 10.
  • Fig. 4 the area around the air gap 12 is shown enlarged.
  • Adjacent to the fixed contact 5, the associated arc guide plate 10 is arranged so that between the end of the fixed contact 5 and the end of the arc guide plate 10, the air gap 12 is formed.
  • the protective cover 26 extends between the fixed contact 5 and the arc guide plate 10.
  • the fixed contact 5, the arc guide plate 10 and the protective cover 26 thus form a cavity into which an arc 12 emerging upon activation of the blow coil 18 can penetrate and remain without causing any damage ,
  • the protective cover 26 is thus arranged between the air gap 12 and the Primärblas adopted 15 and may surround the Primiliablas issued 14 partially. As a result, good protection of the primary blowing device 14 is made possible.
  • Fig. 5a shows a perspective enlarged view of a protective cover 25, 26.
  • the protective cover 25, 26 is formed of an arc-resistant material.
  • a ceramic material is used for this purpose, for example steatite or cordierite. These materials have a certain porosity, so that they are relatively stable even at temperature shocks. This is particularly necessary because the arc temperature is up to 20,000 Kelvin.
  • Both the edge region 30 of the protective cover 25; 26, which is associated with the arc guide plate, as well as the edge region 31 of the protective cover 25; 26, which is assigned to the associated fixed contact, is reinforced.
  • the protective cover 25; 26 laterally projecting arms 32, 33.
  • the arms 32, 33 serve in addition to protect the behind the protective cover 25; 26 arranged components.
  • a groove 49 is provided on the back 48 of each protective cover 25, 26. Via the groove 49, the protective cover 25, 26 are fixed and positioned in the housing of the contactor.
  • a guide strip is formed on the housing of the contactor, whose shape corresponds to the shape of the groove 49 of the protective cover 25, 26. The protective cover 25, 26 can thus be plugged onto the guide bar of the housing, so that the guide bar engages in the groove 49.
  • Fig. 6 shows a section through the contact point 2 of a contactor.
  • the protective cover 25 is disposed between the fixed contact 4 and the arc guide plate 9 and protects the underlying components of the contactor, such as the Primärblas issued 13.
  • the groove 49 is provided, into which a guide rail of the housing 34 of the contactor 1 inserted is.
  • the guide rail 32 is preferably formed on a projection 35 of the side wall of the housing 34, wherein the projection 35 projects into the interior of the contactor.
  • the protective cover 25 is arranged in the housing 34 of the contactor 1 that the arm 32 abuts the projection 35.
  • the protective cover 25 is glued to the arm 32 and the groove 49 with the projection 35 and the guide rail. The attachment of the protective covering 25 thus takes place via the housing 34 of the contactor 1.
  • the protective cover 26 of second contact point 3 of the contactor 1 is analogously attached to the housing 34 of the contactor 1.
  • Fig. 7 shows a portion of another embodiment of a contactor in partial section. Separate protection is also claimed for this embodiment and the embodiments of the contactor shown in the following figures.
  • Contactor 1 ' has essentially the same structure as the contactor already described. For identical components, therefore, the same reference numerals are used. In the following, only the differences are shown.
  • Fig. 7 shows essentially only the deletion area of the contactor 1 ', for the sake of clarity, the contact bridge was omitted with the movable contacts arranged thereon.
  • the contactor 1 ' is again designed as a contactor with double interruption and comprises two fixed contacts 4, 5. Adjacent to each of the fixed contacts 4, 5, an arc guide plate 9, 10 is arranged. The ends of the arc guide plates 9, 10 are arranged slightly spaced from the respective fixed contacts 4, 5, so that between the ends of the fixed contact 4 and the associated end of the arc guide plate 9, an air gap 11 is formed. Likewise, the end of the fixed contact 5 is spaced from the corresponding end of the arc guide 10, so that there is an air gap 12 is formed.
  • a protective covering 25 is arranged, which shields the other components of the contactor, for example, a first Primärblas adopted 13 and a first blow coil 17 of the air gap 11.
  • a second protective cover 26 is arranged between the second fixed contact 5 and the associated second arc guide plate 10, which shields the second primary blowing device 14 and the second blowing coil 18 with respect to the air gap 12.
  • reinforcements 36 are arranged on the side walls of the housing of an arc-resistant material.
  • a ceramic plate is preferably used. Suitable materials are steatite or cordierite. The ceramic plates can be glued to the housing wall, for example.
  • the arc guide plates 9, 10 in the region of the contact points, that is adjacent to the fixed contact 4 and the fixed contact 5 are formed substantially parallel to each other.
  • the arc guide plates form a Lichtbogenleitschacht there 19 out.
  • the distance between the arc guide plate 9 and the arc guide plate 10 widens, so that an arc between the arc guide plates 9, 10 is stretched.
  • the arc quenching device 24 of the contactor 1 ' is arranged.
  • a collecting trough 37 is arranged between the arc quenching device 24 and the arc guide plates 9, 10 .
  • the drip pan 37 is thus arranged above the contact bridge.
  • the collecting trough 37 is preferably made of a plastic material, for example a duroplastic.
  • the drip tray 37 is attached to the side wall of the housing 34. In this case, a gap is formed between the side wall of the housing 34 and the collecting trough 37.
  • Switching arcs arising at the contact points are blown through the blower devices 13, 14, 17, 18 through the arc guide shaft 19 in the direction of the extinguishing device 24 of the contactor 1 '.
  • the arcs are widened at the Lichtbogenleitblechen 9, 10, run past the drip pan 37 and are finally brought to extinction in the extinguishing device 24.
  • a collecting device for the combustion particles in the form of the collecting trough 37 is provided.
  • the drip pan 37 is preferably so large that it projects beyond the contact points. From the quenching device 24 falling combustion particles are therefore collected in the sump 37.
  • the burn-off particles, which fall past the drip pan 37, no longer meet the contact bridge, but accumulate in the region of the drive of the contact bridge.
  • the collecting trough 37 is preferably V-shaped in cross section. The drip pan 37 thus tapers at its underside facing the contact bridge and tapers to a point. This ensures that the arcs on both sides of the drip pan 37 over in the direction of the arc quenching device 34 run and not dwell on the drip pan 37.
  • Fig. 8 shows an enlarged view of the area VIII Fig. 7 , In this area, the attachment of the sump 37 is shown on the side wall of the housing 34. It can be clearly seen that the drip pan 37 is V-shaped in cross section, so that arcs are driven past the side walls of the drip pan 37 in the direction of the extinguishing device 24 and do not dwell on the underside of the drip pan 37.
  • the drip pan 37 has pins 38 which are received in recesses 40 of the side wall of the housing 34. It arises between the respective Side wall of the housing 34 and the collecting trough 37, a gap 41. To protect the pins 38 from the arcs, the region of the pins 38, which is arranged in the gap 41, surrounded by a metal element 39.
  • a bronze sleeve can be used for this purpose.
  • the metal elements 39 are not damaged by the arcs.
  • the collecting trough 37 is positioned symmetrically directly above the contact bridge in the region of the arc line between the arc guide pieces 9, 10.
  • the width of the formed between the sump 37 and the two side walls of the housing 34 air gaps 41 is about 4 mm.
  • the switching arcs move due to the blowing fields through these air gaps 41 at random on both sides of the sump 37 in the upper region of the quenching chamber.
  • the arc unfolding and the arc extinguishing takes place in the arc quenching device 24. Due to the high arc speed of the drip tray 37, which preferably consists of a thermosetting plastic, not damaged even at high switching cycles.
  • the switching characteristics of the contactor are not significantly changed by the collecting trough 37 in any area.
  • Fig. 9 shows a further embodiment of a collecting device for burn-up.
  • the structure of the contactor with this collecting device for the burn-up substantially corresponds to the shooter already described.
  • the same reference numerals are used. In the following, only the differences are shown.
  • Fig. 9 only the contact bridge 8 of a contactor with a contact bridge drive 42 is shown.
  • a U-shaped deflector 43 is arranged on the contact bridge 8.
  • This deflector 43 serves as Abbrandauffangvoriques for shooters with smaller air and creepage distances, in which no space can be used for space reasons.
  • Abweisblech 43 is prevented, as well as by the drip tray, that arise in the contactor Abbrandpiety on the contact points and thereby cause that no stable contact is made, which can cause high thermal loads in the contactor.
  • the U-shaped deflection plate 43 is arranged on the side facing away from the contact points of the contact bridge 8, so that the legs 44, 45 of the Abweisblechs 43 extend substantially perpendicular to the longitudinal extent of the contact bridge 8 and protrude from the contact bridge to the outside in the direction of the arc quenching device.
  • the legs 44, 45 are arranged adjacent to the respective movable contact 6, 7. Originating burnup is therefore in Inside the U-shaped Abweisblechs 43 collected or falls laterally past the contact bridge.
  • a protective sheath is arranged.
  • a bellows 47 can be used. This protective sheath or the bellows 47 is preferably also used in shooters in which a drip pan is provided. By the bellows 47 prevents the burned particles fall into the sliding bearing of the shift rod 46 and thus block the drive of the contact bridge 8.
  • Fig. 10 shows the region of the contact points 2, 3 of a contactor with a U-shaped deflection plate in the closed state.
  • the U-shaped deflection plate 43 is arranged in the middle of the contact bridge 8.
  • the distance between the legs 44, 45 of the U-shaped Abweisblechs 43 is chosen so that it is slightly larger than the distance between the contact points 2, 3 facing ends of the Lichtbogenleitbleche 9, 10.
  • In the closed position of the contactor come Leg 44, 45 of the Abweisblechs 43 in the air gaps 11, 12 to lie between the respective fixed contact 4; 5 and the associated arc guide plate 9; 10 are formed.
  • the contactor 1 has a double break with two contact points 2, 3. But it would also be possible to form the contactor as a simple interrupting contactor, which then has only one contact point. This one contact point may be formed as one of the two contact points described above.
  • FIG. 1 the contactor 1 is shown in the opening moment.
  • the contact bridge 8 is moved downward, so that the movable contacts arranged thereon 6, 7 are separated from the fixed contacts 4, 5.
  • the two contact points 2, 3 are thus opened.
  • arise at the contact points 2, 3 switching arcs 15, 16, each between the fixed contact 4; 5 and the associated movable contact 6; 7 extend.
  • the primary blowing field generated by the primary blowing devices 13, 14 acts immediately on the switching arcs 15, 16.
  • the primary blowing means 13, 14 are permanent magnets formed, which are polarized in a direction perpendicular to the longitudinal axis of the contact bridge 8 opposite to each other.
  • the two switching arcs 15, 16 are blown to the left.
  • the left switching arc 15 is stretched, the right arc 16 commutes from the fixed contact 5 on the arc guide plate 10.
  • a foot of the arc 16 thus skips the air gap 12.
  • the inductance of this blow coil 18 counteracts a sudden increase in current.
  • the current transfer through the blow coil 18 is increasing according to an E-function. Therefore, a second arc 28 forms at the air gap 12.
  • the protective cover 26 is disposed between the arc guide plate 10 and the fixed contact 5.
  • the circuit in the contactor 1 is now still closed and the current flows from the fixed contact 4 via the arc 15, the contact bridge 8, the arc 16, the arc guide plate 10 and the second blow coil 18 for fixed contact 5.
  • Parallel to the current path over the second Blass coil 18 is formed by the arc 28, a second current path. If the current is fully taken over by the blow coil 18, so this arc extinguished 28. There is then only one more current path. Since the blow coil 18 is now activated, it generates an electromagnetic blow field, which acts on the arc 16. This causes the second arc root of the arc 16 from the contact bridge 8 on the arc guide plate 9 skips (see Fig. 3 ). The arc 15 goes out.
  • the still existing arc 16 is blown in the direction of the arc quenching device 24, widened and finally extinguished by the blowing fields of the first blowing coil 17 and the second blowing coil 18.
  • the ceramic protective linings 25, 26 ensures that the secondary arcs 28, 29, the activation the two blow coils 17, 18 arise, cause no arcing damage in the contactor.
  • the protective panels 25, 26 must therefore be arranged in the area in which an arc is created when the puff coils are switched on.
  • Abbrand-catching devices such as a drip pan 37 or a deflector 43, between the contact bridge 8 and the Arc quenching device 24 may be provided.

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  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Relay Circuits (AREA)
EP10001056.0A 2009-03-16 2010-02-02 Contacteur résistante à la formation d'arc Active EP2230678B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200910013337 DE102009013337B4 (de) 2009-03-16 2009-03-16 Lichtbogenresistenter Schütz

Publications (3)

Publication Number Publication Date
EP2230678A2 true EP2230678A2 (fr) 2010-09-22
EP2230678A3 EP2230678A3 (fr) 2013-01-30
EP2230678B1 EP2230678B1 (fr) 2015-11-11

Family

ID=42078912

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10001056.0A Active EP2230678B1 (fr) 2009-03-16 2010-02-02 Contacteur résistante à la formation d'arc

Country Status (3)

Country Link
EP (1) EP2230678B1 (fr)
DE (1) DE102009013337B4 (fr)
RU (1) RU2451359C2 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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DE102014002902A1 (de) 2014-02-27 2015-08-27 Schaltbau Gmbh Löschkammer für ein Schütz und ein Schütz zum Löschen von Lichtbögen
WO2015149895A1 (fr) * 2014-03-31 2015-10-08 Schaltbau Gmbh Disjoncteur de puissance multipolaire
EP3048626A1 (fr) 2015-01-22 2016-07-27 Schaltbau GmbH Appareil de commutation avec soufflage d'arc par aimant permanent
CN105981123A (zh) * 2014-02-08 2016-09-28 埃伦贝格尔及珀恩斯根有限公司 开关系统
EP3349232A1 (fr) * 2017-01-12 2018-07-18 ABB Schweiz AG Contacteur électromécanique
EP3349231A1 (fr) * 2017-01-12 2018-07-18 ABB Schweiz AG Contacteur électromécanique
KR20210111564A (ko) * 2020-03-03 2021-09-13 엘에스일렉트릭(주) 아크 소호 조립체
KR20210115584A (ko) * 2020-03-13 2021-09-27 엘에스일렉트릭(주) 아크 소호부 및 이를 포함하는 기중 차단기

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DE102011118418B4 (de) 2011-11-12 2015-07-16 Ellenberger & Poensgen Gmbh Schaltsystem
DE102016213073A1 (de) 2016-07-18 2018-01-18 Ellenberger & Poensgen Gmbh Schaltsystem
DE102021214615A1 (de) 2021-12-17 2023-06-22 Ellenberger & Poensgen Gmbh Löschkammer eines mechanischen Schalters

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EP1569313B1 (fr) 2004-02-27 2006-10-18 ABB Technology AG Appareil Haute Tension avec piège à particules
DE102006035844A1 (de) 2006-08-01 2008-02-07 Schaltbau Gmbh Schütz für Gleichstrom- und Wechselstrombetrieb
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CN105981123A (zh) * 2014-02-08 2016-09-28 埃伦贝格尔及珀恩斯根有限公司 开关系统
CN105981123B (zh) * 2014-02-08 2019-03-05 埃伦贝格尔及珀恩斯根有限公司 开关系统
EP3349230A1 (fr) * 2014-02-27 2018-07-18 Schaltbau GmbH Chambre d'extinction pour un dispositif de protection et dispositif de protection destiné à l'extinction d'arcs électriques
DE102014019713A1 (de) 2014-02-27 2015-08-27 Schaltbau Gmbh Löschkammer für ein Schütz und ein Schütz zum Löschen von Lichtbögen
CN108777241B (zh) * 2014-02-27 2019-11-19 沙尔特宝有限公司 用于接触器的消弧室以及用于消除电弧的接触器
DE102014002902B4 (de) 2014-02-27 2019-08-01 Schaltbau Gmbh Löschkammer für ein Schütz und ein Schütz zum Löschen von Lichtbögen
RU2594754C2 (ru) * 2014-02-27 2016-08-20 Шальтбау ГмбХ Дугогасительная камера для контактора и контактор для гашения электрической дуги
WO2015127948A1 (fr) * 2014-02-27 2015-09-03 Schaltbau Gmbh Chambre d'extinction pour un contacteur et contacteur pour l'extinction d'arcs
DE102014002902A1 (de) 2014-02-27 2015-08-27 Schaltbau Gmbh Löschkammer für ein Schütz und ein Schütz zum Löschen von Lichtbögen
CN108777241A (zh) * 2014-02-27 2018-11-09 沙尔特宝有限公司 用于接触器的消弧室以及用于消除电弧的接触器
US9646784B2 (en) 2014-02-27 2017-05-09 Schaltbau Gmbh Arc chamber for a contactor and contactor to extinguish electric arcs
US9799471B2 (en) 2014-03-31 2017-10-24 Schaltbau Gmbh Multipolar power contactor
RU2646620C1 (ru) * 2014-03-31 2018-03-06 Шальтбау ГмбХ Многополюсный силовой контактор
WO2015149895A1 (fr) * 2014-03-31 2015-10-08 Schaltbau Gmbh Disjoncteur de puissance multipolaire
EP3157032A1 (fr) 2015-01-22 2017-04-19 Schaltbau GmbH Appareil de commutation avec extinction d'arc par aimant permanent
DE102015000796B4 (de) 2015-01-22 2017-03-02 Schaltbau Gmbh Schaltgerät mit permanentmagnetischer Lichtbogenlöschung
DE102015000796A1 (de) 2015-01-22 2016-07-28 Schaltbau Gmbh Schaltgerät mit permanentmagnetischer Lichtbogenlöschung
EP3048626A1 (fr) 2015-01-22 2016-07-27 Schaltbau GmbH Appareil de commutation avec soufflage d'arc par aimant permanent
EP3349232A1 (fr) * 2017-01-12 2018-07-18 ABB Schweiz AG Contacteur électromécanique
EP3349231A1 (fr) * 2017-01-12 2018-07-18 ABB Schweiz AG Contacteur électromécanique
KR20210111564A (ko) * 2020-03-03 2021-09-13 엘에스일렉트릭(주) 아크 소호 조립체
KR20210115584A (ko) * 2020-03-13 2021-09-27 엘에스일렉트릭(주) 아크 소호부 및 이를 포함하는 기중 차단기

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EP2230678A3 (fr) 2013-01-30
RU2451359C2 (ru) 2012-05-20
DE102009013337A1 (de) 2010-11-18
DE102009013337B4 (de) 2011-01-27
RU2010107366A (ru) 2011-08-27
EP2230678B1 (fr) 2015-11-11

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