CN102360972B - The low voltage switchgear of single interruption is especially line protection switch - Google Patents
The low voltage switchgear of single interruption is especially line protection switch Download PDFInfo
- Publication number
- CN102360972B CN102360972B CN201110162150.9A CN201110162150A CN102360972B CN 102360972 B CN102360972 B CN 102360972B CN 201110162150 A CN201110162150 A CN 201110162150A CN 102360972 B CN102360972 B CN 102360972B
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- Prior art keywords
- electric
- conductor
- arc
- conductor section
- contact
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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
- H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
-
- 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
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The present invention relates to a kind of low voltage switchgear of single interruption, is especially line protection switch, specifically, in low voltage switchgear according to the present invention, when short circuit current (C) interrupts, formation switching arc (L, L ').Switchgear has two and to be returned by the first conductor section (71) and the electric current that formed by the second conductor section (85) and draw.Electric current (C) to be interrupted direction in two conductor sections (71,85) respectively with it in switching arc guides on the contrary.But, the second conductor section (85) only the lowest point of switching arc (L) to be transitioned into by contact (20) electric arc guide rail (40) upper after just guide electric current (C).After this, two conductor sections (71,85) are jointly repelled electric arc (L ') and are therefore driven in the arc control device (50) of switch by electric arc (L ') with large power due to electromagnetic force.
Description
Technical field
The present invention relates to the low voltage switchgear that a kind of single (einfach) interrupts
as particularly related to line protection switch.In low-voltage distribution device (Niederspannungsverteiler); such switchgear be used as fast and reliably protection be in low pressure under electrical appliance (Verbraucher), as being especially circuit, motor, equipment (Anlage) or apparatus (Apparat).
At this, this has decisive meaning, namely, when interruptive current, the switching arc produced when contact (Kontaktstelle) of cut-off switch is not retained on the contact of contact, but arrive as quickly as possible in the arc control device of switch, in these arc control device, this switching arc cools by resolving into part electric arc and eliminates.
Therefore, except contact and arc control device, except two terminals, current connection and the trip gear for detecting the electric current that (Detektieren) guides in the switch, low voltage switchgear also has: electric arc guide rail (Lichtbogenleitschiene), and switching arc is directed to arc control device from contact by this electric arc guide rail; And such device, that is, the guiding of switching arc supported by this device.
Background technology
The low voltage switchgear of the mentioned type of beginning is described in file DE19524915C2 and in file DE3334852A1.In such devices, the arc blow-out winding (Blasschleife) guided in the mode around contact is formed in the first electric conductor, the fixed contact (Festkontakt) of contact is connected (file DE19524915C2) with the first terminals of switch by this first electric conductor, or be formed in the second electric conductor, the movable contact (Kontakt) of contact is connected (file DE3334852A1) with the second terminals by this second electric conductor.Therefore, arc blow-out loop line (Blasschlaufe) is flowed through by electric current to be cut off, and produces arc blow-out magnetic field (Blasfeld).This arc blow-out magnetic field is conducive to the selffield (Eigenfeld) of (unterst ü tzen) switching arc.Therefore, switching arc additionally accelerates on its path from contact to arc control device.Realize thus shortening electric arc running time (Lichtbogenlaufzeit) and correspondingly improving arc extinction performance
and improve the switching capability of switch
Summary of the invention
As in detail in the claims, the object of the invention is to, realize the low voltage switchgear of the single interruption of the mentioned type of beginning, although simple structure, this low voltage switchgear is outstanding by short electric arc running time and good arc extinction performance.
Low voltage switchgear according to single interruption of the present invention comprises:
First and second terminals,
With fixed contact and the contact with movable contact,
First electric conductor, the first terminals are connected with fixed contact by this first electric conductor in an electrically conductive way,
Second electric conductor, this second electric conductor in an electrically conductive way the second terminals is connected with movable contact,
The the first electric arc guide rail (Lichtbogenlaufschiene) be connected in an electrically conductive way with the first electric conductor,
Second electric arc guide rail,
3rd electric conductor, the second electric conductor is connected with the second electric arc guide rail by the 3rd electric conductor, and
Be arranged in the arc control device between the first and second electric arc guide rails.
In this switchgear, when current interruptions, movable contact moves towards the second electric arc guide rail in the plane, and when disconnecting in contact, forms switch distance (Schaltstrecke) that be arranged in plane, that determined by the interval of the contact of separation.In addition, remain on the lowest point (Fusspunkt) of switching arc on movable contact, that formed when contact disconnects to be transitioned into the second electric arc guide rail from movable contact, and electric current in this commutation (kommutieren) in the 3rd electric conductor.
First electric conductor of this switchgear has and is parallel to that plane stretches, that cross over (ü berbr ü ckenden) switch distance and is arranged in the first conductor section of the side edge away from arc control device of switch distance.3rd electric conductor has and is parallel to the second conductor section that plane stretches, that cross over switch distance.During interrupt procedure, not only the first but also second conductor section and its direction in switching arc guide electric current on the contrary.
Therefore, replace the arc blow-out winding of the costliness near switch Distance geometry two electric arc guide rails, low voltage switchgear according to the present invention has two electric currents formed by the first and second conductor sections and returns and draw (Stromr ü ckf ü hrung).This electric current returns that draw can simple patten's design and require few space.Because the electric current to be interrupted direction respectively with it in switching arc in two conductor sections guides on the contrary, therefore two conductor sections repel (abstossen) switching arc jointly.Because the 3rd electric conductor and thus same and the 3rd electric conductor all-in-one-piece second conductor section are only transitioned into after on the second electric arc guide rail in electric arc lowest point just guide electric current to be interrupted, therefore from this moment, provide king-sized electromagnetic force, this electromagnetic force will based on the switching arc fast driving (treiben) on (fussen) two electric arc guide rails in arc control device.Because the second conductor section only just participates in building electromagnetic force will to commutate the current to after in the 3rd electric conductor, therefore this second conductor section can be arranged in the side edge away from arc control device of switch distance as the first conductor section, but also can be arranged in the side edge towards arc control device of switch distance.Under any circumstance, low voltage switchgear according to the present invention is outstanding by simple structure, short arc duration and good arc extinguishing ability.
First conductor section can mainly (vorwiegend) be parallel to switch distance and stretch, but compared to the first conductor section, the second conductor section can have less interval relative to arc control device.In the switchgear of improvement like this according to the present invention, switching arc can especially fast and reliably eliminate.This mainly, because compared with the first conductor section, the the second conductor section being more closely positioned at arc control device place after electric current commutation with larger electromagnetic force on switching arc, and to be promptly driven in arc control device especially because electric arc like this is transitioned into after on electric arc guide rail at it.
Second conductor section can be arranged to relative first conductor section and tilt, and utilizes the bending electric arc guide rail (this electric arc guide rail consumingly, typically change the direction of the switching arc between switch Distance geometry arc control device with about 90 °) stretched to be driven into rapidly in arc control device by switching arc for same.
When the second electric conductor have be parallel to the 3rd conductor section that plane stretches time (in the 3rd conductor section, the direction of electric current before commutation with it in switching arc guides on the contrary), then can contribute to being transitioned into based on the switching arc on movable contact on the second electric arc guide rail and to be interrupted can being contributed to thus equally to commutate the current in the second conductor section.
In order to realize electromagnetic force (this electromagnetic force is conducive to being transitioned into the second electric arc guide rail from movable contact by switching arc and contributing to be cut off to commutate the current in the second conductor section thus equally), first and the 3rd conductor section can respectively to be arranged into the both sides of plane relative to the spaced mode of plane, wherein, the interval of the first conductor section is less than the interval of the 3rd conductor section.
3rd conductor section can be configured to flexible and can in production technology favourable mode utilize one of two end be placed in an electrically conductive way the contact carrier of movable contact from the end that plane is drawn.The other end of 3rd conductor section can with short circuit current release
be connected in an electrically conductive way with the bus (Stromanschluss) of the second electric conductor all-in-one-piece coil.
When second and the 3rd conductor section to be arranged in condition so in the same side of plane time, namely, make compared with the 3rd conductor section, the second conductor section has less interval relative to plane, then can realize the effect being conducive to whole interrupt procedure of electromagnetic force.
In low voltage switchgear according to the present invention, wherein along order successively (der Reihenach) arrange the first terminals, contact, the first and second electric arc guide rails, arc control device and the second terminals, second electric conductor can have the 4th conductor section be arranged between the second terminals and arc control device, 4th conductor section is perpendicular to the arc quenching plate orientation of arc control device, and in the 4th conductor section, electric current to be interrupted has the direction (Richtungssinn) identical with switching arc when switching arc flows in arc control device.In such form of implementation, be also conducive to switching arc more consumingly and flow in arc control device, and correspondingly additionally shorten arc duration.
Accompanying drawing explanation
With reference to the accompanying drawings, hereafter embodiments of the invention are explained further.At this:
Fig. 1 shows the end view being configured to the live part (Aktivteile) of the guiding electric current of the low voltage switchgear of line protection switch according to invention when interrupting short circuit current,
Fig. 2 show according to the switch of Fig. 1 be implemented as the parts of arc-control device from right side with the vertical view that arrow II-II direction guides, and
Fig. 3 shows the vertical view guided along arrow III-III of the arc-control device according to Fig. 2.
List of reference characters
10 terminals
20 contacts
21 fixed contacts
22 movable contacts
23 axis
24 contact carrier
30,40 electric arc guide rails
50 arc control device
51 arc quenching plates
60 terminals
70 electric conductors
71 conductor sections
72 crossbeams (Traverse)
80 electric conductors
81 conductor sections
82 buss
83 coils
84 current connection (Stromverbindung)
85,86 conductor sections
E plane
G connects straight line (Verbindungsgerade)
L, L ' switching arc
N Normal plane
S switch distance
Embodiment
In all of the figs, identical reference number has represented the parts of phase same-action.Line protection switch shown in Figure 1 has terminals 10 successively along order (in einer Linie liegend); with the contact 20 of single interruption, with two electric arc guide rails 30; 40 and arc-control device with arc control device 50, and terminals 60.Contact 20 comprises fixed contact 21 and movable contact 22 cooperative with fixed contact 21, this fixed contact 21 remains on the electric conductor 70 that is connected with terminals 10 in an electrically conductive way, and this movable contact 22 remains on the contact carrier 24 that support in the mode that can swing around axis 23 in an electrically conductive way.The electric conductor 80 that the segmentation of contact carrier 24 passage constructs flexibly is connected with terminals 60 in an electrically conductive way.Electric arc guide rail 30 is connected in an electrically conductive way with electric conductor 70, and electric arc guide rail 40 is connected in an electrically conductive way with electric conductor 80.Electric arc guide rail 30,40 stretches in by Fig. 2 and 3 apparent plane E.Arc control device 50 are furnished with, that these arc control device 50 have an orientation parallel to each other and arc quenching plate 51 kept with spaced form each other stacking between two electric arc guide rails 30 and 40.
Electric conductor 70 has and is parallel to plane E extends, the conductor section 71 that is configured to rigidity, and electric conductor 80 comprise be parallel to that plane extends but using the form of flexibility-typically as the conductor section 81 of twisted wire-structure.Can find out by 1 and 3, two conductor sections 71,81 each with at least part of section be parallel to the switch distance S being arranged in plane E form stretch, the contact 21 that this switch distance S is being separated when switch disconnects, is formed between 22.As shown in figs 2 and 3, in mode favourable in production technology, conductor section 71 utilizes in two end one to be connected with contact 21 in an electrically conductive way by the crossbeam 72 of drawing from plane.Movable contact 22 utilizes an end of the contact carrier 24 that can be applicable to the switch that dual (zweifach) interrupts equally to settle in an electrically conductive way.The other end of contact carrier 24 is by conductor section 81 being connected in an electrically conductive way with the bus 82 of electric conductor 80 all-in-one-piece coil 83 with the short circuit current release of mode favourable in production technology and switch.
Be connected each other by the conductors 84 being implemented as twisted wire with electric arc guide rail 40 with electric conductor 80 all-in-one-piece bus 82, this conductors 84 has the conductor section 85 being parallel to plane E and stretching, according to Fig. 3, compared to conductor section 81, this conductor section 85 has less interval relative to plane E.Not only conductor section 85 but also conductor section 71 cross over switch distance S, and therefore have with the switch when switch disconnects apart from corresponding longitudinal extension.
When switch closes, movable contact 22 is forming the situation lower support of contact force on fixed contact 21.After this, terminals 60 are flow to from terminals 10 through electric conductor 70, fixed contact 21, movable contact 22, contact carrier 24 and electric conductor 80 by the short circuit current C of arrows.In order to interrupt short circuit current C, contact 20 disconnects, and counterclockwise about axis 23 in plane E swings at this contact carrier 24 or movable contact 22.At this, in formation based on two contacts 21, when switching arc L on 22, that be arranged in plane E, movable contact 22 is separated with fixed contact 21.Equally, the switch distance S indicated in figure 3 is arranged in plane E equally.
As illustrated in figures 1 and 3, short circuit current C to be interrupted direction in two conductor sections 71 and 81 respectively with it in switching arc L guides on the contrary.Therefore, two conductor sections repel switching arc L due to electromagnetic force.Two conductor sections 71 and 81 are so arranged, namely, the component be directed upwards towards arc control device 50 side of electromagnetic force is made to have enough sizes, to be transitioned into electric arc guide rail 40 from contact 22 rapidly in order to ensure by the lowest point be positioned on movable contact 22 of switching arc.
In order to the component utilizing simple device to realize size enough (dimensioniert), conductor section 71 is arranged on the side away from arc control device 50 of switch distance S.By conductor section 81 being arranged in equally on this side, namely above switch distance S, when interrupt procedure starts, realized repulsive interaction, electromagnetic force be particularly conducive to component electric arc lowest point be transitioned on electric arc guide rail 40.
If conductor section 81 is arranged in below switch distance S, namely this conductor section 81 be positioned at switch distance S towards on the side of arc control device 50, then as from Fig. 2 and 3 apparent, compared to conductor section 71, conductor section 81 has larger interval relative to plane E.Realizing for the transition of electric arc lowest point equally is in this case enough large component.
When conductor section 71 and 81 with plane E have the form of same intervals be positioned at perpendicular to plane E orientation and in the Normal plane N settled through switch distance S time, and when being directed to the connection straight line G-of (guiding electric current C's) conductor section 81 relative to electric arc guide rail 30 from (guide electric current C) conductor section 71 in Normal plane N, 40 stretch--hold the lowest point of electric arc L-side edge away from arc control device 50 of switch distance S, that is stretch above switch distance time, then realize the component of applying effect mentioned above for certain.
When electric arc lowest point is transitioned into electric arc guide rail 40 from movable contact 22, electric current C commutates in electric conductor 80, and is directed to terminals 60 from electric arc L ' through electric arc guide rail 40, electric conductor 84 and electric conductor 80 now.In conductor section 85, short circuit current has as the identical direction above in conductor section 81.The electromagnetic force playing repulsive interaction produces now in two conductor sections 71 and 85.This power will be driven in the arc control device 50 of switch based on the switching arc L ' on two electric arc guide rails 30 and 40, and in these arc control device 50, this switching arc L ' resolves into part electric arc by arc quenching plate 51
cool and eliminate.
Apparently, compared to conductor section 81, conductor section 85 has less interval relative to plane E.Therefore, the component of the driving switch electric arc L ' of electromagnetic force becomes large.Meanwhile, compared with conductor section 71, conductor section 85 be directed to arc control device 50 more nearby.By this measure, especially effectively contribute to switching arc L and flow in arc control device 50.
In order to produce enough large electromagnetic force when interrupt procedure starts, as shown in FIG. 1, conductor section 71 is predominantly parallel to switch distance S and stretches.As shown in FIG. 1, switch distance S is predominantly parallel to arc quenching plate 51 and extends, and correspondingly, electric arc guide rail 30 between switch distance S and arc control device 50,40 change about 90 °, its direction, so advantageously, conductor section 85 is arranged to typically tilt about 30 to 60 ° relative to the first conductor section 71 or arc quenching plate 51.After electric current commutation, stretch although electric arc guide rail 30,40 is bending, after this electric arc L ' and conductor section 85 are arranged to mainly parallel to each other in sizable part of the travel path of electric arc L ' (Laufweg).
To flow in arc control device 50 to contribute to switching arc and to be decomposed into part electric arc, electric conductor 80 has the conductor section 86 be arranged between terminals 60 and arc control device 50, this conductor section 86 perpendicular to arc quenching plate 51 orientation, and only has less interval relative to arc control device 50.Short circuit current to be interrupted has as the identical direction in switching arc L ' in this section.Therefore, short circuit current produces electromagnetic force in conductor section 86, this electromagnetic attracting force switching arc L or part electric arc, and so additionally improves the arc extinguishing ability of switch.
Claims (8)
1. a low voltage switchgear for single interruption, comprises
First terminals (10) and the second terminals (60),
With fixed contact (21) and with the contact (20) of movable contact (22),
First electric conductor (70), described first terminals (10) are connected with described fixed contact (21) by described first electric conductor (70) in an electrically conductive way,
Second electric conductor (80), described second terminals (60) are connected with described movable contact (22) by described second electric conductor (80) in an electrically conductive way,
The the first electric arc guide rail (30) be connected in an electrically conductive way with described first electric conductor (70),
Second electric arc guide rail (40),
3rd electric conductor (84), described second electric conductor (80) is connected with described second electric arc guide rail (40) by described 3rd electric conductor (84), and
Be arranged in the arc control device (50) between described first electric arc guide rail (30) and described second electric arc guide rail (40),
In described low voltage switchgear, when electric current (C) interrupts, described movable contact (22) moves towards described second electric arc guide rail (40) in plane (E), and when described contact (20) disconnect, contact (21 that formation is arranged in described plane (E), that pass through separation, 22) interval and determine switch distance (S), and
In described low voltage switchgear, switching arc (the L formed when described contact (20) disconnect, L ') the lowest point remained on described movable contact (22) be transitioned into described second electric arc guide rail (40) from described movable contact (22), and said electric current (C) commutates in described 3rd electric conductor (84)
It is characterized in that,
Described first electric conductor (70) has and is parallel to that described plane (E) stretches, that cross over described switch distance (S) and is arranged in the first conductor section (71) of the side edge away from described arc control device (50) of described switch distance (S)
Described 3rd electric conductor (84) have be parallel to that described plane (E) stretches, cross over described switch distance (S) the second conductor section (85), and
During interrupt procedure, the direction of described electric current (C) not only in described first conductor section (71) but also in described second conductor section (85) with it in described switching arc (L, L ') guides on the contrary.
2. switchgear according to claim 1, it is characterized in that, described first conductor section (71) is predominantly parallel to described switch distance (S) and stretches, and compared to described first conductor section (71), described second conductor section (85) has less interval relative to described arc control device (50).
3. switchgear according to claim 2, is characterized in that, described second conductor section (85) is arranged to tilt relative to described first conductor section (71).
4. switchgear according to any one of claim 1 to 3, it is characterized in that, described second electric conductor (80) has the 3rd conductor section (81) being parallel to described plane (E) and stretching, in described 3rd conductor section (81), the direction that described electric current (C) commutates to before in described 3rd electric conductor (84) with it in described switching arc (L, L ') at it guides on the contrary.
5. switchgear according to claim 4, it is characterized in that, described first conductor section (71) and described 3rd conductor section (81) are to be arranged into the both sides of described plane respectively relative to described plane (E) spaced mode, wherein, the interval of described first conductor section (71) is less than the interval of described 3rd conductor section (81).
6. switchgear according to claim 4, it is characterized in that, described 3rd conductor section (81) is configured to flexible, and utilize one of two end be placed in an electrically conductive way the contact carrier (24) of described movable contact (22) from the end that described plane (E) is drawn, and being connected in an electrically conductive way with the bus (82) of described second electric conductor (80) all-in-one-piece coil (83) of the other end of described 3rd conductor section (81) and short circuit current release.
7. switchgear according to claim 4, it is characterized in that, described second conductor section (85) and described 3rd conductor section (81) are arranged in the same side of described plane (E), wherein, compared to described 3rd conductor section (81), described second conductor section (85) has less interval relative to described plane (E).
8. switchgear according to any one of claim 1 to 3, in described switchgear, described first terminals (10) are arranged successively along order, described contact (20), described two electric arc guide rails (30, 40), described arc control device (50) and described second terminals (60), it is characterized in that, described second electric conductor (80) has the 4th conductor section (86) be arranged between described second terminals (60) and described arc control device (50), described 4th conductor section (86) is perpendicular to arc quenching plate (51) orientation of described arc control device (50), and in described 4th conductor section (86), at described switching arc (L, L ') when flowing in described arc control device (50), described electric current (C) to be interrupted has and described switching arc (L, L ') identical direction.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP20100165048 EP2393096B1 (en) | 2010-06-07 | 2010-06-07 | Easy to interrupt low voltage circuit breaker, in particular current protection switch |
| EP10165048.9 | 2010-06-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102360972A CN102360972A (en) | 2012-02-22 |
| CN102360972B true CN102360972B (en) | 2015-09-16 |
Family
ID=42946326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110162150.9A Expired - Fee Related CN102360972B (en) | 2010-06-07 | 2011-06-07 | The low voltage switchgear of single interruption is especially line protection switch |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2393096B1 (en) |
| CN (1) | CN102360972B (en) |
| ES (1) | ES2404845T3 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016216392A1 (en) * | 2016-08-31 | 2018-03-01 | Siemens Aktiengesellschaft | Switching unit for an electrical switch and electrical switch |
| CN114050096A (en) * | 2021-11-11 | 2022-02-15 | 西安理工大学 | Miniature circuit breaker arc extinguishing system and have its miniature circuit breaker |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2381637A (en) * | 1942-04-09 | 1945-08-07 | Ite Circuit Breaker Ltd | Arc quencher |
| DE3334852A1 (en) * | 1983-07-18 | 1985-01-31 | Serd S.A., Straßburg/Strasbourg | Line protection circuit breaker having an arc starting aid |
| EP0980085A2 (en) * | 1998-08-13 | 2000-02-16 | Siemens Aktiengesellschaft | Power circuit breaker with blast coil operated by the arc |
| CN1879183A (en) * | 2003-11-11 | 2006-12-13 | 西门子公司 | Arc quenching system |
| CN1942988A (en) * | 2004-04-15 | 2007-04-04 | 西门子公司 | Switching device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19524915C2 (en) | 1995-07-08 | 2003-06-26 | Abb Patent Gmbh | Arc extinguishing arrangement for an electrical switch, in particular for a circuit breaker |
-
2010
- 2010-06-07 ES ES10165048T patent/ES2404845T3/en active Active
- 2010-06-07 EP EP20100165048 patent/EP2393096B1/en not_active Not-in-force
-
2011
- 2011-06-07 CN CN201110162150.9A patent/CN102360972B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2381637A (en) * | 1942-04-09 | 1945-08-07 | Ite Circuit Breaker Ltd | Arc quencher |
| DE3334852A1 (en) * | 1983-07-18 | 1985-01-31 | Serd S.A., Straßburg/Strasbourg | Line protection circuit breaker having an arc starting aid |
| EP0980085A2 (en) * | 1998-08-13 | 2000-02-16 | Siemens Aktiengesellschaft | Power circuit breaker with blast coil operated by the arc |
| CN1879183A (en) * | 2003-11-11 | 2006-12-13 | 西门子公司 | Arc quenching system |
| CN1942988A (en) * | 2004-04-15 | 2007-04-04 | 西门子公司 | Switching device |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2404845T3 (en) | 2013-05-29 |
| EP2393096B1 (en) | 2013-02-13 |
| EP2393096A1 (en) | 2011-12-07 |
| CN102360972A (en) | 2012-02-22 |
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Granted publication date: 20150916 Termination date: 20160607 |