EP2795643A1 - Schaltgeraet geeignet fuer einen gleichstrombetrieb - Google Patents
Schaltgeraet geeignet fuer einen gleichstrombetriebInfo
- Publication number
- EP2795643A1 EP2795643A1 EP12798778.2A EP12798778A EP2795643A1 EP 2795643 A1 EP2795643 A1 EP 2795643A1 EP 12798778 A EP12798778 A EP 12798778A EP 2795643 A1 EP2795643 A1 EP 2795643A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact
- arc
- switching device
- contacts
- extinguishing
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/08—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
- H01H33/10—Metal parts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/18—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
- H01H33/185—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using magnetisable elements associated with the contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/42—Driving mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/04—Contacts
- H01H73/045—Bridging contacts
-
- 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
- H01H9/36—Metal parts
-
- 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
-
- 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
Definitions
- Such a switching device is known from EP 2 061 053 A2.
- a switching device for DC applications there is proposed to use the housing of a switching device for AC applications, wherein additionally at least one magnet is provided which has a magnetic field with substantially transverse to the separation paths of the current paths of the AC switching device field lines.
- the housing In the housing, three receiving areas are provided for each one flow path, wherein each current path is associated with a movable switching contact element and two opposing fixed switching contact elements.
- the three movable switching contact elements are jointly movable between a closed position, which corresponds to the switched-on state of the switching device, and an open position, which corresponds to a switched-off state of the switching device.
- DC applications In DC applications, erasure of an arc can not be achieved due to zero current passage, as in AC applications, DC applications require the provision of a magnetic field which drives the arc into one of the arc quenching devices.
- This magnetic field is formed by permanent magnets, wherein a magnetic field is established with field lines in an orientation which extend transversely to the separation lines and generate a Lorenz force on these arcs forming parting lines, which the arcs in the direction of one of
- Arc quenching drives In this case, an arc between a first contact pair in the direction of a first arc quenching device and the arc between a second contact pair in a second
- a switching device suitable for a DC operation which comprises at least one pair of contacts with a first contact and a second contact, wherein at least one of the two contacts is movable and the two contacts in an on state of the switching device in contact and in a turned off state of the switching device are out of contact with each other.
- the switching device comprises an arc runner arrangement, which generates a magnetic field at least in the region of the contact pair, and a first arc guide arrangement, by means of which an arc occurring between the contacts is conducted with a first current direction to a quenching device for extinguishing the arc.
- a second arc guide arrangement which generates a magnetic field at least in the region of the contact pair
- a first arc guide arrangement by means of which an arc occurring between the contacts is conducted with a first current direction to a quenching device for extinguishing the arc.
- Arcing device provided by means of which an arc occurring between the contacts with one of the first current direction opposite second current direction to the extinguishing device for extinguishing the arc is passed.
- Extinguishing device is directed.
- a permanent magnetic field is generated by means of permanent magnets in order to provide a magnetic field in a simple manner and current-independent.
- the first arc guide arrangement is designed such that an arc is deflected with a first current direction in a first direction of rotation and directed to the extinguishing device.
- the second arc guide arrangement is arranged such that an arc is deflected with a second current direction in a direction of rotation opposite to the first direction of rotation and directed to the extinguishing device. This means that the arc is deflected regardless of its current direction and is driven into the extinguishing device.
- the paths which the arc must cover until it reaches the extinguishing device are preferably the same size in order to achieve the same switching behavior of the switching device in both current directions
- the first contact is a stationary fixed contact and the second contact is a movable contact.
- the arc is deflected by the second contact on a side facing away from the first contact side of the second contact.
- the arc is thus deflected to the rear of the movable contact, wherein the erasing device is arranged on the back of the movable contact.
- the arc is driven in a direction in the quenching device, which is approximately parallel to the direction of movement of the movable contact.
- the movable contact moves when opening the contact pair in the direction of the extinguishing device, so that the arc in the shortest path in the
- Extinguishing device can be directed.
- the extinguishing device is preferably as a deion-quenching chamber with a plurality of mutually electrically isolated, arranged parallel to each other
- the extinguishing device is preferably used as a preassembled unit that can be used in a housing of the switching device.
- the quenching plates are preferably aligned parallel to the direction of movement of the at least one movable contact.
- the arc guide assemblies each have a first baffle and a second baffle, wherein the two first baffles extend from the first contact in opposite directions and in the direction of the extinguishing device.
- the first two baffles can accommodate the extinguishing device between them.
- the second baffles even in the transitions between the fixed contact carrier and the second baffles, designed without interruption. This avoids standing electric arcs, which can lead to burnup and thus to a shorter service life.
- the two second baffles are preferably arranged on a contact carrier, which carries the second contact, wherein they can extend in opposite directions.
- a contact carrier which carries the second contact, wherein they can extend in opposite directions.
- the second baffles are angled at their free ends in the direction of the extinguishing device.
- the baffles therefore remain substantially plate-shaped, which simplifies the production of baffles.
- a second variant is characterized in that the second baffles are bent annularly at their free ends. The second baffles thus each form a ring section with an im
- the arc runner assembly comprises in a preferred embodiment at least one permanent magnet disposed between two pole plates, the contact pair being disposed between the pole plates. By the two pole plates a homogeneous magnetic field is generated.
- the switching device can be designed as a double-breaking switching device with two pairs of contacts, wherein the two pairs of contacts each have a first contact and a second contact.
- the second contacts are in this case arranged on a bridge contact piece which is movable relative to the first contacts. In the switched on State of the switching device, the second contacts are each in contact with one of the first contacts, wherein the bridge switching piece electrically connects the two second contacts.
- Figure 3 is a side view of the circuit arrangement in a simplified representation
- FIG. 4 shows an arc runner arrangement for a switching device according to FIG. 1.
- FIGS 1 to 3 show the switching device 1 according to the invention in perspective views, wherein in Figure 2, a housing 6 of the switching device for the sake of clarity is not shown and in Figure 3 in addition, the arc runner assembly has been omitted. Figures 1 to 3 will be described together below.
- the electrical switching device 1 comprises a total of two poles, d. H. two switching paths, namely a first switching path 2 and a second switching path 3.
- Switching tracks 2, 3 are each provided with a switch, as explained in more detail below, and thus can be electrically interrupted.
- the two switching paths 2, 3 can each be integrated into a DC circuit and serve to interrupt a current flow.
- the first switching path 2 is shown on the left and the second switching path 3 on the right.
- the first switching path 2 is first representatively explained, wherein the second switching path 3 is mirror-image constructed in principle identical. Differences will be explained later.
- the two switching paths 2, 3 with respect to the arc line and deletion designed differently.
- both variants were shown in the switching device 1.
- the switches can also be designed completely identical.
- the switching device 1 comprises a housing 6, in which the switches are explained in more detail below, are added.
- the first switching path 2 comprises a first switching path
- the two terminals 4, 5 are rectified on the same side of the housing 6 led out of this.
- the first terminal 4 leads to a first contact pair 7, which in a first
- Switching chamber 26 of the housing 6 is arranged.
- the second connection 5 leads to a second contact pair 8, which is arranged in a second switching chamber 27 of the housing 6.
- the two switching chambers 26, 27 are electrically isolated from each other in the housing 6, arranged side by side.
- the first terminal 4 is electrically connected to a first fixed contact carrier 10, on which a first contact 9 of the first contact pair 7 is arranged.
- a second contact 11 is movably arranged.
- the second contact 11 is vertically adjustable in the representation shown in Figure 1.
- the second contact 11 is on an electrically conductive contact carrier in the form of a bridge contact piece 12th
- switched state is the first contact 9 and the second contact 11 held in contact with each other.
- the two contacts 9, 11 are kept out of contact with each other.
- Bridge contact piece 12 also carries a hidden here and therefore not visible second contact of the second contact pair 8, wherein the bridge contact piece 12, the two second contacts 11 electrically interconnects.
- the second contact of the second contact pair 8 is arranged adjustable to a first contact of the second contact pair 8, wherein the first contact of the second contact pair 9 arranged on a second fixed contact carrier, which is electrically connected to the second terminal 5.
- the first switching path 2 is thus either closed or interrupted at both contact pairs 7, 8.
- a first erasing device 14 is provided vertically above the first contact pair 7 and a second erasing device, not shown here for reasons of clarity, is provided vertically above the second contact pair 8, the two erasing devices 14 being constructed identically to one another.
- the first extinguishing device 14 is arranged on a side facing away from the first contact 9 side of the bridge contact piece 12.
- the first extinguishing device 14 comprises first extinguishing plates 15, which are arranged parallel to one another and parallel to the
- FIG. 4 shows by way of example the first arc runner arrangement 16, which shows a permanent magnet 28.
- the permanent magnet 28 is arranged between two flux guides 29, 30 running parallel to the permanent magnet 28.
- the flux-conducting pieces 29, 30 and the permanent magnet 28 are in turn arranged between an outer pole plate 18 and an inner pole plate 19.
- the first arc runner assembly 16 has a substantially U-shaped profile. Furthermore, the inner pole plate 19, the interior of the first arc runner assembly 16 has a substantially U-shaped profile. Furthermore, the inner pole plate 19, the interior of the first arc runner assembly 16 has a substantially U-shaped profile. Furthermore, the inner pole plate 19, the interior of the first arc runner assembly 16 has a substantially U-shaped profile. Furthermore, the inner pole plate 19, the interior of the first arc runner assembly 16 has a substantially U-shaped profile. Furthermore, the inner pole plate 19, the interior of the
- Switching device 1 has and adjacent to the second arc running arrangement 17, a slot 33 through which the bridge contact piece 12th
- Arc runner assembly 16 ' form a stronger magnetic field than at the outer edges.
- a continuous plate-shaped spacer 32 is provided of electrically insulating material.
- a shielding plate 35 is also provided on the spacer 32 in order to shield the magnetic fields generated by the permanent magnets 28, 28 'downwards.
- an actuating device is generally provided in the rule, which has a magnetic switching coil, wherein the
- the arc guiding devices 20, 21 of the two contact pairs 7, 8 are of identical design, reference being made below to the arc guiding devices 20, 21 of the first contact pair 7.
- a first arc guiding device 20 and a second arc guiding device 21 are provided.
- the first arc guiding device 20 serves to conduct a
- a Lorenz force is applied to the arc.
- a first baffle 22 is used and a second baffle 24 to drive the arc into the first eraser 14.
- the first baffle 22 is connected to the first fixed contact carrier 10 and initially extends horizontally to the left in the orientations of the switching device 1 shown in Figure 1 and is then deflected 90 ° and leads vertically upwards.
- the second baffle 24 is formed on the bridge switch piece 12 and leads slightly bent upward to the left.
- the arc is therefore formed between these two baffles 22, 24 continues, and is deflected 90 ° upwards.
- the arc will run along the rear side of the bridge contact piece 12 facing away from the first contact 9, the arc being successively driven into the gap between the individual first extinguishing plates 15.
- blowout openings 34 for blowing out the
- a first guide plate 23 first leads from the first fixed contact carrier 10 to the right and is then angled vertically upwards at 90 °.
- a second baffle 25 which is formed by the bridge switching piece 12, slightly bent upward, so that an arc is first deflected to the side to the right and then upwards. Subsequently, the arc is applied to the back of the
- Bridge switching piece 12 on one side facing away from the first contact 9 driven and guided there successively between the first quenching plates 15.
- the first fixed contact carrier 10 and the first baffles 22, 23 are U-shaped, wherein the first guide plates 22, 23 are executed parallel to their ends and straight. In this area, take the first two baffles 22, 23, the first erase 14 between them, wherein the quenching plates 15 are arranged parallel to the free ends of the first baffles 22, 23.
- the arc guiding devices 20, 21 and the first erasing device for the first contact pair 7 are identical to the arc guiding devices and the second erasing device for the second contact pair 8 is formed.
- the Lichtbogenleit noiseen 20 ', 21' of the second switching path 3 are basically the same structure as the Lichtbogenleit respondeden 20, 21 of the first switching path 2. In their function matching components are the same reference numerals, but a superscript added, provided.
- the second switching path 3 differ in the example shown only with respect to the second baffles 24 ', 25'. This further embodiment of the second baffles 24 ', 25' is integrated into the same switching device 1 for ease of illustration.
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL12798778T PL2795643T3 (pl) | 2011-12-22 | 2012-12-12 | Przełącznik obwodu prądu stałego |
| EP12798778.2A EP2795643B1 (de) | 2011-12-22 | 2012-12-12 | Schaltgeraet geeignet fuer einen gleichstrombetrieb |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP11195174.5A EP2608234A1 (de) | 2011-12-22 | 2011-12-22 | Gleichstromschaltgerät |
| PCT/EP2012/075264 WO2013092348A1 (de) | 2011-12-22 | 2012-12-12 | Schaltgeraet geeignet fuer einen gleichstrombetrieb |
| EP12798778.2A EP2795643B1 (de) | 2011-12-22 | 2012-12-12 | Schaltgeraet geeignet fuer einen gleichstrombetrieb |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2795643A1 true EP2795643A1 (de) | 2014-10-29 |
| EP2795643B1 EP2795643B1 (de) | 2020-02-19 |
Family
ID=47326207
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP11195174.5A Withdrawn EP2608234A1 (de) | 2011-12-22 | 2011-12-22 | Gleichstromschaltgerät |
| EP12798778.2A Active EP2795643B1 (de) | 2011-12-22 | 2012-12-12 | Schaltgeraet geeignet fuer einen gleichstrombetrieb |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP11195174.5A Withdrawn EP2608234A1 (de) | 2011-12-22 | 2011-12-22 | Gleichstromschaltgerät |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US9552943B2 (de) |
| EP (2) | EP2608234A1 (de) |
| PL (1) | PL2795643T3 (de) |
| WO (1) | WO2013092348A1 (de) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9129761B2 (en) | 2012-12-20 | 2015-09-08 | Eaton Electrical Ip Gmbh & Co. Kg | Switching device suitable for direct current operation |
| DE102014119475B4 (de) | 2014-12-22 | 2024-02-08 | Eaton Intelligent Power Limited | Lichtbogenleitanordnung für eine Schaltgerät und ein Schaltgerät mit solch einer Lichtbogenleitanordnung |
| DE102016223620A1 (de) * | 2016-11-29 | 2018-05-30 | Siemens Aktiengesellschaft | Lichtbogenlöschvorrichtung und elektromechanisches Schutzschaltgerät |
| EP3561837B1 (de) * | 2018-04-24 | 2022-12-21 | ABB Schweiz AG | Elektrischer schalter |
| CN108987209B (zh) * | 2018-09-25 | 2024-03-08 | 西安柏泰电气有限公司 | 一种灭弧罩 |
| CN111554548B (zh) * | 2020-06-08 | 2025-12-12 | 浙江天正智能电器有限公司 | 一种产气片、灭弧装置及具有其的断路器 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1515978B1 (de) * | 1962-03-02 | 1970-02-26 | Licentia Patent-Verwaltungs-Gmbh | Schaltgerät mit Druckluftbeblasung der Kontaktstücke |
| DE1946065U (de) * | 1967-05-10 | 1966-09-15 | Siemens Ag | Polungsunabhaengige lichtbogenloeschvorrichtung fuer gleichstrom-schaltgeraete. |
| CH632867A5 (en) * | 1978-11-15 | 1982-10-29 | Bbc Brown Boveri & Cie | Device for influencing the arc development in a DC circuit breaker |
| DE7835288U1 (de) * | 1978-11-28 | 1979-03-01 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Lichtbogenlöscheinrichtung für Gleichstromschaltgeräte |
| US5004874A (en) * | 1989-11-13 | 1991-04-02 | Eaton Corporation | Direct current switching apparatus |
| US5138122A (en) * | 1990-08-29 | 1992-08-11 | Eaton Corporation | Bi-directional direct current switching apparatus having arc extinguishing chambers alternatively used according to polarity applied to said apparatus |
| US5130504A (en) * | 1990-08-29 | 1992-07-14 | Eaton Corporation | Bi-directional direct current switching apparatus having bifurcated arc runners extending into separate arc extinguishing chambers |
| US5818003A (en) | 1996-02-08 | 1998-10-06 | Eaton Corporation | Electric switch with arc chute, radially converging arc splitter plates, and movable and stationary arc runners |
| EP1027715A1 (de) * | 1997-10-17 | 2000-08-16 | Kilovac Corporation | Abgedichteter hochspannungsschalter |
| DE102007054958A1 (de) | 2007-11-17 | 2009-06-04 | Moeller Gmbh | Schaltgerät für Gleichstrom-Anwendungen |
| US8222983B2 (en) * | 2010-12-08 | 2012-07-17 | Eaton Corporation | Single direct current arc chamber, and bi-directional direct current electrical switching apparatus employing the same |
-
2011
- 2011-12-22 EP EP11195174.5A patent/EP2608234A1/de not_active Withdrawn
-
2012
- 2012-12-12 US US14/366,032 patent/US9552943B2/en active Active
- 2012-12-12 WO PCT/EP2012/075264 patent/WO2013092348A1/de not_active Ceased
- 2012-12-12 EP EP12798778.2A patent/EP2795643B1/de active Active
- 2012-12-12 PL PL12798778T patent/PL2795643T3/pl unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013092348A1 (de) | 2013-06-27 |
| US9552943B2 (en) | 2017-01-24 |
| EP2608234A1 (de) | 2013-06-26 |
| US20150129548A1 (en) | 2015-05-14 |
| PL2795643T3 (pl) | 2020-08-10 |
| EP2795643B1 (de) | 2020-02-19 |
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