CN210006633U - DC arc extinguish chamber - Google Patents
DC arc extinguish chamber Download PDFInfo
- Publication number
- CN210006633U CN210006633U CN201920596327.8U CN201920596327U CN210006633U CN 210006633 U CN210006633 U CN 210006633U CN 201920596327 U CN201920596327 U CN 201920596327U CN 210006633 U CN210006633 U CN 210006633U
- Authority
- CN
- China
- Prior art keywords
- arc
- contact
- blowing
- extinguishing
- extinguishing chamber
- 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.)
- Active
Links
Images
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Circuit Breakers (AREA)
Abstract
DC arc-extinguishing chamber belongs to the field of DC arc-extinguishing, and is characterized by comprising a contact system, an arc-blowing system and an arc-extinguishing system, wherein the arc-blowing system is arranged at the side of the arc-extinguishing system, the contact system is arranged in the arc-extinguishing system, the contact system comprises a fixed contact and a movable contact, the arc-blowing system comprises an arc-blowing coil and an arc-blowing circuit, the arc-extinguishing system comprises an arc-extinguishing chamber wall, the arc voltage is greatly improved by adding an arc-blowing magnetic field, the current situation that the vacuum arc voltage is low and natural current transfer is difficult to realize is changed, the arc-blowing system and the contact system are completely independent, the arc-blowing magnetic field can be freely adjusted according to needs and is not limited by system current, so that the arc-extinguishing chamber has higher independence and autonomy for arc adjustment and realization, does not influence the original contact structure, does not influence the insulation characteristic of a contact, does not cause the quality of additional moving parts, has high reliability, and the.
Description
Technical Field
The utility model belongs to direct current arc extinguishing field especially relates to kinds of direct current explosion chamber that utilize extra magnetic field regulation and control to improve explosion chamber arc voltage.
Background
The direct current breaker is used as the essential key equipment for constructing a direct current distribution network, is the basic guarantee of the safe operation of a system, and has great significance for preventing the expansion of a fault range, because the direct current has no natural zero crossing point, the direct breaking mode is greatly restricted, and the effective idea for solving the problem is to create the breaking mode of an artificial zero crossing point based on current transfer.
Disclosure of Invention
The utility model aims at solving the above problem, provide kinds of direct current explosion chambers based on outside magnetism blows.
The utility model discloses a direct current explosion chamber, including contact system, arc-blowing system and arc extinguishing system, the arc-blowing system sets up in the side of arc extinguishing system, the contact system sets up in the arc extinguishing system, the contact system includes static contact and moving contact, the arc-blowing system includes arc-blowing coil and arc-blowing circuit, the arc extinguishing system includes the arc extinguishing chamber wall, set up to the vacuum in the arc extinguishing chamber wall.
Direct current explosion chamber, set up to the vacuum in the arc extinguishing chamber wall or be provided with the arc extinguishing medium.
DC arc extinguishing chamber, arc extinguishing medium includes SF6Andor N2Andor H2。
In the DC arc extinguish chamber, the contact system adopts a flat contact or a transverse magnetic contact or a longitudinal magnetic contact or a magnetic blow contact; the transverse magnetic contact and the longitudinal magnetic contact both comprise a magnetic blow design; the magnetic blow contact is provided with an arc striking angle.
DC arc extinguishing chamber, the arc blowing coil is horizontal magnetism arc blowing coil or indulges magnetism arc blowing coil.
Direct current explosion chamber, the arc blowing coil sets up in the inside arc extinguishing chamber wall or the arc extinguishing chamber wall outside.
Direct current explosion chamber, arc extinguishing chamber wall can expose also can seal installation in solid utmost point post.
Direct current explosion chamber, including contact system, arc-blowing system and arc extinguishing system: by adding the arc-blowing magnetic field, the arc voltage is greatly improved, and the current situation that the vacuum arc voltage is low and natural current transfer is difficult to realize is changed. The arc blowing system and the contact system are completely independent, and the arc blowing magnetic field can be freely adjusted according to the requirement without being limited by system current, so that the arc control has higher independence and autonomy. The method is simple to realize, does not influence the original contact structure, does not influence the insulation characteristic of the contact, and does not cause extra moving part quality. The reliability is high, and the arc-blowing magnetic field can be freely adjusted according to the requirements, so that the arc-blowing magnetic field is an effective way for realizing current transfer.
Drawings
Fig. 1 is a schematic structural view of a dc arc extinguish chamber of the present invention;
fig. 2 is a schematic circuit diagram of a current transfer process of the dc arc-extinguishing chamber according to the present invention;
fig. 3 is a schematic structural view of the dc arc-extinguishing chamber adopting transverse magnetic contacts according to the present invention;
fig. 4 is a schematic structural view of the dc arc-extinguishing chamber adopting longitudinal magnetic contacts according to the present invention;
fig. 5 is a schematic structural view of the dc arc extinguish chamber adopting a longitudinal magnetic contact with an arc-striking angle according to the present invention;
fig. 6 is a schematic structural view of a dc arc-extinguishing chamber according to a second embodiment of the present invention;
fig. 7 is a schematic structural view of a dc arc-extinguishing chamber according to a third embodiment of the present invention;
fig. 8 is a schematic diagram of a circuit of the dc arc-extinguishing chamber of the present invention adopting an independent power supply mode;
fig. 9 is a schematic diagram of a circuit of the dc arc-extinguishing chamber according to the present invention, which adopts a non-independent power supply mode;
fig. 10 is a schematic view of the dc arc-extinguishing chamber and arc-blowing coils inside the embedded pole of the present invention;
fig. 11 is a schematic view of the dc arc-extinguishing chamber and two arc-blowing coils in the embedded pole of the present invention;
the device comprises a movable contact 1, a fixed contact 2, an arc blowing coil 3, an arc blowing circuit 4, an arc extinguishing medium 5, an arc extinguishing chamber wall 6, an arrester assembly 7, an arc striking angle 8 and a solid-sealed pole 9.
Detailed Description
The dc arc-extinguishing chamber of the present invention will be described in detail with reference to the accompanying drawings and examples.
The following detailed description is merely exemplary in nature and is not intended to limit application and uses. Furthermore, there is no intention to be bound by any expressed or implied theory presented in the preceding technical field, background, brief summary or the following detailed description. Unless explicitly described to the contrary, the word "comprise" and variations such as "comprises" or "comprising", will be understood to imply the inclusion of stated elements but not the exclusion of any other elements.
Example
In this embodiment , dc arc-extinguishing chambers based on magnetic blow transfer are described, and in this embodiment , a schematic structural diagram is shown in fig. 1, and the schematic structural diagram includes three parts, namely a contact system, an arc-extinguishing system and an arc-extinguishing system, where the arc-extinguishing system includes an arc-extinguishing medium 5 and an arc-extinguishing chamber wall 6, the arc-extinguishing medium 5 is used to ensure the insulation characteristics of the entire dc arc-extinguishing chamber, and the arc-extinguishing chamber wall 6 is used to accommodate the arc-extinguishing medium 5, in this embodiment, the arc-extinguishing medium 5 is set to be vacuum, the contact system includes a fixed contact 2 and a movable contact 1, and the arc-extinguishing system includes an arc-blowing coil 3 and an arc-blowing circuit 4, when a fracture normally flows through, the movable contact 1 and the fixed contact 2 are closed to form a conductive path, and no external magnetic field is generated, when the fracture needs to transfer current, the movable contact 1 and the fixed contact 2 are separated to generate an arc, and the arc is discharged to the arc-blowing coil 3 at the same time, so as an arc-blowing magnetic field is generated in the illustration.
The schematic circuit diagram of the current transfer process of the embodiment is shown in fig. 2, and through the implementation of the present invention, the current can be quickly transferred from the mechanical fracture to the parallel lightning arrester assembly 7 to realize direct current breaking. After the moving contact 1 and the static contact 2 are separated and arc-started, the arc-blowing circuit 4 discharges electricity to the arc-blowing coil 3 to generate an arc-blowing magnetic field. The arcing magnetic field rapidly increases the arc voltage, and when the arc voltage exceeds the turn-on voltage of the arrester assembly 7, the current is rapidly transferred from the mechanical break to the arrester assembly 7. The arc voltage which is not regulated is lower, the defects of difficult current transfer, slow current transfer and the like exist, and the requirement of direct current on-off is difficult to meet. The utility model discloses an improve arc voltage, solved above-mentioned difficult problem. The method has the advantages of simple realization, simple and convenient adjustment, no influence on the original contact structure and the insulation characteristic of the contact, and high engineering application value.
According to the utility model discloses a direct current explosion chamber based on magnetism blows and shifts, static contact 2 and moving contact 1 can be dull and stereotyped contact, or contain the magnetic blow horizontal magnetism class contact or the vertical magnetism class contact of design, also can be the magnetic blow contact that has arc ignition angle 8 fig. 3 shows two kinds of transverse magnetism class contact structures that can implement, fig. 4 shows kinds of vertical magnetism class contact structures that can implement, fig. 5 shows kinds of vertical magnetism contact structures that take arc ignition angle 8 that can implement.
According to the utility model discloses a direct current explosion chamber based on magnetism blows and shifts, arc-blowing circuit 4 can be independent outer circuit, also can be the internal circuit that is correlated with the contact, and fig. 8 and 9 show independent electric capacity power supply mode and the non-independent power supply mode circuit structure schematic diagram of establishing ties with the contact respectively.
Example two
The transverse magnetic arc-blowing coil 3 shown in fig. 1 may be used as well as the longitudinal magnetic arc-blowing coil 3, and the dc arc-extinguishing chamber has a structure shown in fig. 6, and the arc-extinguishing method is the same as that of example .
EXAMPLE III
On the basis of the embodiment and the second embodiment, according to the dc arc extinguish chamber based on magnetic blow transfer of the present invention, the inventor believes that not only the transverse magnetic blow-out coil 3 as shown in fig. 1 can be adopted, but also a mode of simultaneously blowing out a plurality of coils in multiple directions to generate a composite magnetic field can be used, and as shown in fig. 7, schematic structural diagrams of dc arc extinguish chambers based on magnetic blow transfer can be implemented.
Example four
On the basis of the , the second and the third embodiments, the arc extinguishing chamber wall of the dc arc extinguishing chamber in the present embodiment can be hermetically installed in the embedded pole 9, as shown in fig. 10 and 11, which are the structure of the dc arc extinguishing chamber and arc blowing coils inside the embedded pole 9 and the structure of the dc arc extinguishing chamber and two arc blowing coils inside the embedded pole 9 respectively.
Although the embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments and application fields, and the above-described embodiments are illustrative, instructive, and not restrictive. Those skilled in the art, having the benefit of this disclosure, may effect numerous modifications thereto without departing from the scope of the invention as defined by the appended claims.
Claims (7)
- The direct-current arc extinguishing chamber is characterized by comprising a contact system, an arc blowing system and an arc extinguishing system, wherein the arc blowing system is arranged on the side of the arc extinguishing system, the contact system is arranged in the arc extinguishing system and comprises a fixed contact (2) and a movable contact (1), the arc blowing system comprises an arc blowing coil (3) and an arc blowing circuit (4), and the arc extinguishing system comprises an arc extinguishing chamber wall (6).
- 2. The dc arc chute according to claim 1, characterized in that: the arc extinguishing chamber wall (6) is internally provided with vacuum or arc extinguishing medium (5).
- 3. The dc arc chute according to claim 2, characterized in that: the arc-extinguishing medium comprises SF6Andor N2Andor H2。
- 4. The dc arc chute according to claim 1 or 2, characterized in that: the contact system adopts a flat contact or a transverse magnetic contact or a longitudinal magnetic contact or a magnetic blow contact; the transverse magnetic contact and the longitudinal magnetic contact both comprise a magnetic blow design; the magnetic blow contact is provided with an arc striking angle (8).
- 5. The dc arc chute of claim 4, wherein: the arc blowing coil (3) is a transverse magnetic arc blowing coil (3) or a longitudinal magnetic arc blowing coil (3).
- 6. The dc arc chute of claim 5, wherein: the arc blowing coil (3) is arranged inside the arc extinguishing chamber wall (6) or outside the arc extinguishing chamber wall (6).
- 7. The dc arc chute of claim 6, wherein: the arc extinguishing chamber wall can be exposed or can be hermetically arranged in the embedded pole (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920596327.8U CN210006633U (en) | 2019-04-28 | 2019-04-28 | DC arc extinguish chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920596327.8U CN210006633U (en) | 2019-04-28 | 2019-04-28 | DC arc extinguish chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210006633U true CN210006633U (en) | 2020-01-31 |
Family
ID=69305274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920596327.8U Active CN210006633U (en) | 2019-04-28 | 2019-04-28 | DC arc extinguish chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210006633U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112216542A (en) * | 2020-11-16 | 2021-01-12 | 刘晓明 | Novel structure of gradient rotating magnetic field additionally arranged on arc extinguishing unit of circuit breaker |
| CN112420443A (en) * | 2020-12-07 | 2021-02-26 | 南京南瑞继保电气有限公司 | Device for increasing switch arc voltage and control method thereof |
| CN113327811A (en) * | 2021-04-22 | 2021-08-31 | 西安交通大学 | Arc extinguish chamber structure of oscillating type direct current circuit breaker |
| CN114460450A (en) * | 2021-12-23 | 2022-05-10 | 平高集团有限公司 | A test platform for DC breaking equipment based on high arc voltage technology |
-
2019
- 2019-04-28 CN CN201920596327.8U patent/CN210006633U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112216542A (en) * | 2020-11-16 | 2021-01-12 | 刘晓明 | Novel structure of gradient rotating magnetic field additionally arranged on arc extinguishing unit of circuit breaker |
| CN112420443A (en) * | 2020-12-07 | 2021-02-26 | 南京南瑞继保电气有限公司 | Device for increasing switch arc voltage and control method thereof |
| CN113327811A (en) * | 2021-04-22 | 2021-08-31 | 西安交通大学 | Arc extinguish chamber structure of oscillating type direct current circuit breaker |
| CN114460450A (en) * | 2021-12-23 | 2022-05-10 | 平高集团有限公司 | A test platform for DC breaking equipment based on high arc voltage technology |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210006633U (en) | DC arc extinguish chamber | |
| CN202332692U (en) | Dynamic pressure-equalizing device for multi-fracture high-pressure vacuum circuit breaker | |
| CN106848909A (en) | One kind is without isolated switchgear under bin static contact non-SF 6 gas insulative | |
| CN101136290A (en) | A 40.5kV Sulfur Hexafluoride Circuit Breaker Interrupter | |
| CN203398028U (en) | Non-polar high-voltage direct current contactor arc extinguishing system of reliable arc extinguishing | |
| CN202275787U (en) | Three-fracture series type high voltage DC breaker | |
| CN105429041A (en) | Air insulated high-voltage switch cabinet | |
| CN203312085U (en) | Arc extinguishing device of high-voltage direct-current relay | |
| CN107481823B (en) | Lightning-proof tripping self-arc-extinguishing parallel gap system for power distribution network | |
| CN103000465B (en) | Contact system of novel high-capacity medium-voltage direct current breaker | |
| CN205657035U (en) | Moulded case circuit breaker hydraulic circuit with run -on plate | |
| JP7150876B2 (en) | DC circuit breaker | |
| CN204144201U (en) | A kind of have the arc quenching chamber structure strengthening magnetic field function | |
| CN218828556U (en) | Anti-impact safety structure for short circuit electric arc inside high-voltage switch cabinet | |
| CN206312857U (en) | A kind of low-voltage circuit breaker | |
| CN206640195U (en) | One kind is without isolated switchgear under bin static contact non-SF 6 gas insulative | |
| CN102005322B (en) | Switch apparatus arc extinguish chamber | |
| CN213401855U (en) | Totally-enclosed controllable transformer neutral point protection discharge gap | |
| CN203312218U (en) | Arc extinguishing device for circuit breaker | |
| CN103730299A (en) | Fuse for protecting solar photovoltaic power generation system | |
| CN106848908A (en) | One kind is without bin static contact non-SF 6 gas insulative switchgear | |
| CN103299389B (en) | A kind of method of electric arc extinguished by impulsive discharge in low pressure or high-tension switch gear | |
| CN103138253B (en) | Thunder and lightning induction arc extinguishing band | |
| CN100511523C (en) | Grid-plate type arc-extinguishing equipment for AC-DC switch | |
| CN207149504U (en) | A kind of Minitype electrical leakage breaker N poles arc quenching system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |