CN114038717A - Current transfer device - Google Patents
Current transfer device Download PDFInfo
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- CN114038717A CN114038717A CN202111329263.3A CN202111329263A CN114038717A CN 114038717 A CN114038717 A CN 114038717A CN 202111329263 A CN202111329263 A CN 202111329263A CN 114038717 A CN114038717 A CN 114038717A
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- movable contact
- current
- current transfer
- transfer device
- contact assembly
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- 230000003068 static effect Effects 0.000 claims abstract description 36
- 230000000712 assembly Effects 0.000 claims abstract description 30
- 238000000429 assembly Methods 0.000 claims abstract description 30
- 238000010891 electric arc Methods 0.000 claims abstract description 20
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 21
- 239000001257 hydrogen Substances 0.000 claims description 20
- 229910052739 hydrogen Inorganic materials 0.000 claims description 20
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 11
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
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Classifications
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/08—Terminals; Connections
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention discloses a current transfer device, comprising: a plurality of groups of fixed contact assemblies and a plurality of groups of movable contact assemblies; the number of the fixed contact assemblies is 1 group more than that of the movable contact assemblies; the movable contact assembly is arranged on the driving rod and corresponds to the fixed contact; the two sides of the static contact assembly are both vertically provided with connecting terminals, and the two connecting terminals are respectively connected with the positive electrode and the negative electrode of an external power supply; the movable contact assembly and the static contact assembly have a certain gap, so that when the wiring terminal is connected with the external power supply, the movable contact assembly is driven by the driving rod to be separated from the static contact assembly to form electric arcs, if the static contact assembly and the movable contact assembly are matched in pairs, very high electric arc voltage can be established on the main through-flow branch in a very short time, the current of the main through-flow branch is ensured to be transferred to the current transfer branch, and the movable contact assembly has the characteristics of high electric arc voltage increase speed, strong reliability, compact size, low cost and the like.
Description
Technical Field
The invention relates to the technical field of direct current breaker equipment, in particular to a current transfer device.
Background
With the rapid development of the flexible direct-current power transmission and distribution technology based on the voltage source converter, the construction of a multi-terminal flexible direct-current system for connecting a plurality of converter stations is gradually mature. However, the fault current of the direct current network system has no zero crossing point, so the traditional alternating current circuit breaker is not suitable for the direct current system, the fault current rising rate in the direct current system is high, and the direct current circuit breaker which opens and closes the super fault current within milliseconds needs to be applied to rapidly cut off fault equipment or lines so as to ensure the stable operation of the non-fault part of the direct current system.
In order to ensure the rapid removal of fault equipment or lines, the most common method at present is to remove faults by using a hybrid direct current circuit breaker, and the hybrid direct current circuit breaker has a high fault removal speed and low stable current loss, so that the hybrid direct current circuit breaker becomes one of core technologies developed in the field of medium and high voltage direct current circuit breakers at present, and is successfully applied to a direct current power grid. The hybrid circuit breaker may be classified into a forced commutation type and a natural commutation type according to a principle of turn-off. However, the current forced commutation type hybrid direct current circuit breaker still has the problems of large on-state loss, high manufacturing cost, heat dissipation, relatively complex structure and elements and the like.
Disclosure of Invention
The invention provides a current transfer device for establishing a very high arc voltage in a main current branch in a very short time, ensuring that the current of the main current branch is transferred to the current transfer branch.
The embodiment of the invention provides a current transfer device, which is applied to a main same-current branch of a natural current conversion type hybrid direct-current circuit breaker; the device comprises: a plurality of groups of fixed contact assemblies and a plurality of groups of movable contact assemblies; the number of the fixed contact assemblies is 1 group more than that of the movable contact assemblies; the moving contact component is arranged on the driving rod and corresponds to the fixed contact component;
the two sides of the static contact assembly are both vertically provided with connecting terminals, and the two connecting terminals are respectively connected with the positive electrode and the negative electrode of an external power supply;
and a certain gap is formed between the movable contact component and the static contact component, so that when the wiring terminal is connected with the external power supply, the movable contact component is separated from the static contact component under the driving of the driving rod to form electric arc.
Optionally, the apparatus further comprises: a hydrogen arc chamber; the hydrogen arc chamber is arranged below the moving contact component and is used for separating hydrogen plasma in the electric arc.
Optionally, the moving contact component is provided with a sector groove with the same depth and radian;
the movable contact component staggers the fan-shaped groove to be covered by the fixed contact component.
Optionally, the number of the movable contact assemblies is 3, and the number of the fixed contact assemblies is 4.
Optionally, the fixed contact assembly is composed of a fixed contact connector and a fixed contact; the static contact is arranged on the edge of the static contact connecting piece.
Optionally, the multipoint fixed contact connecting member is an insulating member.
Optionally, the moving contact component consists of a moving contact connecting piece and a moving contact; the multipoint moving contacts are arranged at the edge of the fan-shaped groove and correspond to the multipoint fixed contacts one to one.
Optionally, the movable contact connecting member is the insulating member.
Optionally, the gas within the hydrogen arc chamber is pure hydrogen.
Optionally, the connection relationship between the wiring terminal and the fixed contact assembly is welding.
According to the technical scheme, the invention has the following advantages:
the invention relates to a current transfer device, which is applied to a main same-current branch of a natural current conversion type hybrid direct-current circuit breaker; the device comprises: a plurality of groups of fixed contact assemblies and a plurality of groups of movable contact assemblies; the number of the fixed contact assemblies is 1 group more than that of the movable contact assemblies; the movable contact assembly is arranged on the driving rod and corresponds to the fixed contact; the two sides of the static contact assembly are both vertically provided with connecting terminals, and the two connecting terminals are respectively connected with the positive electrode and the negative electrode of an external power supply; and a certain gap is formed between the movable contact component and the static contact component, so that when the wiring terminal is connected with the external power supply, the movable contact component is separated from the static contact component under the driving of the driving rod to form electric arc.
Therefore, when the current transfer device is connected with the natural current conversion type hybrid direct current circuit breaker in series, through the pairwise matching of the static contact assembly and the moving contact assembly, very high arc voltage can be established on the main through-flow branch in a very short time, the current of the main through-flow branch is guaranteed to be transferred to the current transfer branch, and the current transfer device has the characteristics of high arc voltage improvement speed, high reliability, compact size, low cost and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts;
fig. 1 is a schematic diagram of a typical topology of a forced commutation type hybrid dc circuit breaker;
FIG. 2 is a schematic diagram of an auxiliary current transfer module topology for a power electronics assembly;
FIG. 3 is a schematic diagram of an auxiliary current transfer module topology for a coupled voltage architecture;
FIG. 4 is a schematic diagram of an embodiment of a current transfer device according to the present invention;
FIG. 5 is a side cross-sectional view of one embodiment of a current diverting device of the present invention;
fig. 6 is a schematic view illustrating a current flow direction of a current transfer device according to an embodiment of the present invention.
In the figure: 1. a first connection terminal; 2. a second connection terminal; 3. a static contact connecting piece; 4. a moving contact connecting piece; 5. static contact; 6. a moving contact; 7. a hydrogen arc chamber; a. an external auxiliary switch; b. a residual current cut-off device; c an auxiliary current transfer module; d. a fast mechanical switch; e. a main through-flow branch; f. A solid state switch; g. a current transfer branch; h. a lightning arrester group; i. an energy absorbing branch; d1, a first movable contact assembly; d2, a second movable contact assembly; d3, a third movable contact assembly; j1, a first stationary contact assembly; j2, a second stationary contact assembly; j3, a third stationary contact assembly; j4, fourth fixed contact assembly; h1, first short arc; h2, second short arc; h3, third short arc; h4, fourth short arc; h5, fifth short arc; h6, sixth short arc.
Detailed Description
The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Referring to fig. 1-3, fig. 1 is a schematic composition diagram of an embodiment of a crash cushion airbag system of a micro unmanned aerial vehicle, fig. 1 is a schematic diagram of a typical topology structure of a forced current conversion type hybrid dc circuit breaker, fig. 2 is a schematic diagram of a topology structure of an auxiliary current transfer module combined by power electronic devices, fig. 3 is a schematic diagram of a topology structure of an auxiliary current transfer module of a coupled voltage structure, the hybrid dc circuit breaker is one of core technologies developed in the field of medium and high voltage dc circuit breakers at present, the hybrid circuit breaker can be classified into a forced current conversion type and a natural current conversion type according to a different shutdown principle, and fig. 1 is a schematic diagram of a typical topology structure of a forced current conversion type hybrid dc circuit breaker, which includes: the device comprises a main current branch e, a current transfer branch g and an energy absorption branch i, wherein the main current branch e consists of a quick mechanical switch d (generally a quick vacuum switch) and an auxiliary current transfer module c, the current transfer branch g consists of a solid-state switch f, and the energy absorption branch i consists of a lightning arrester group h. More specifically, the auxiliary current transfer module c in the main current branch e generally comprises: the power electronic device comprises two topologies, namely a power electronic device combined structure of an auxiliary current transfer module and a coupling voltage structure of the auxiliary current transfer module, which are respectively shown in fig. 2 and fig. 3. When the external auxiliary switch a is closed, the residual current cut-off device b is also closed, the current of the current conversion type hybrid direct current circuit breaker is forced to be cut off, the solid-state switch f on the current transfer branch circuit g is conducted, the quick mechanical switch d on the main current branch circuit e is cut off, the auxiliary current transfer module c is operated, the current is transferred to the current transfer branch circuit g, when the quick mechanical switch d is opened to a required opening distance, the solid-state switch f on the current transfer branch circuit g is cut off, and finally the energy absorption branch circuit i cuts off the current.
And a main through-current branch in a typical topological structure of the natural current conversion type hybrid direct-current circuit breaker only comprises a mechanical switch, when the current is cut off, a solid-state switch on a current transfer branch is conducted, the mechanical switch on the main through-current branch is broken and arcs are drawn, the solid-state switch is opened by utilizing the arc voltage of the mechanical switch, the current is finally transferred to the solid-state switch, and after the mechanical switch is opened to a required opening distance, the solid-state switch is closed, and finally the current is cut off by an energy absorption branch.
However, at present, the forced current-changing type hybrid dc circuit breaker still has the problems of large on-state loss, high manufacturing cost, heat dissipation requirement, relatively complex structure and elements, and the like, and although the natural current-changing type hybrid dc circuit breaker has a simple structure, the current-changing type hybrid dc circuit breaker is limited by the magnitude of the arc voltage in the current-changing process, and the current transfer failure is often caused by too low arc voltage of the mechanical switch of the main current branch.
The current transfer device is mainly used for establishing a very high arc voltage on the main through-flow branch in a very short time and ensuring that the current of the main through-flow branch is transferred to the current transfer branch.
Specifically, please refer to fig. 4-6, fig. 4 is a schematic composition diagram of an embodiment of a current transfer device of the present invention, fig. 5 is a cross-sectional side view of an embodiment of a current transfer device of the present invention, fig. 6 is a schematic current trend diagram of an embodiment of a current transfer device of the present invention, the current transfer device is applied to a main common current branch of a natural current transforming hybrid dc circuit breaker; the device comprises: a plurality of groups of fixed contact assemblies and a plurality of groups of movable contact assemblies; the number of the fixed contact assemblies is 1 group more than that of the movable contact assemblies; the moving contact component is arranged on the driving rod and corresponds to the fixed contact component;
the two sides of the static contact assembly are both vertically provided with connecting terminals, and the two connecting terminals are respectively connected with the positive electrode and the negative electrode of an external power supply;
and a certain gap is formed between the movable contact component and the static contact component, so that when the wiring terminal is connected with the external power supply, the movable contact component is separated from the static contact component under the driving of the driving rod to form electric arc.
In the embodiment of the invention, the first connecting terminal 1 and the second connecting terminal 2 are respectively positioned on two sides of the static contact component and connected with the positive electrode and the negative electrode of an external power supply, and the gap between the moving contact component and the static contact component is used for generating electric arc by the moving contact component under the driving of the driving rod.
Further, the apparatus further comprises: a hydrogen arc chamber 7; the hydrogen arc chamber 7 is arranged below the movable contact component, and the hydrogen arc chamber 7 is used for separating hydrogen plasma in the electric arc.
Furthermore, the moving contact component is provided with a fan-shaped groove with the same depth and radian;
the movable contact component staggers the fan-shaped groove to be covered by the fixed contact component.
In the embodiment of the invention, the moving contact component is provided with the fan-shaped groove with the same depth and radian, and the moving contact component moves on the fan-shaped groove in a staggered manner based on the static contact component so as to generate a plurality of electric arcs.
Further, the number of the movable contact assemblies is 3, and the number of the fixed contact assemblies is 4.
Furthermore, the static contact assembly consists of a static contact connecting piece and a static contact; the static contact is arranged on the edge of the static contact connecting piece.
Further, the multipoint fixed contact connecting piece is an insulating part.
Furthermore, the moving contact component consists of a moving contact connecting piece and a moving contact; the multipoint moving contacts are arranged at the edge of the fan-shaped groove and correspond to the multipoint fixed contacts one to one.
In an embodiment of the present invention, the movable contact assembly includes: the first movable contact assembly D1, the second movable contact assembly D2, the third movable contact assembly D3, the static contact assembly includes: the movable contact assembly comprises a first fixed contact assembly J1, a second fixed contact assembly J2, a third fixed contact assembly J3 and a fourth fixed contact assembly J4, wherein the edges of the first fixed contact assembly J1 and the second fixed contact assembly J2 are respectively connected with two ends of a first movable contact assembly D1, the edges of a second movable contact assembly D2 and a third movable contact assembly D3 are respectively connected with two ends of a second movable contact assembly D2, the edges of the third movable contact assembly D3 and the fourth movable contact assembly D4 are respectively connected with two ends of a third movable contact assembly D3, and six generated contacts can generate a first short arc h1, a second short arc h2, a third short arc h3, a fourth short arc h4, a fifth short arc h5 and a sixth short arc h 6.
Further, the moving contact connecting piece is the insulating part.
In the embodiment of the invention, any single section of electric arc has a near-pole voltage drop, although the value of the near-pole voltage drop of the electric arc changes with the difference of cathode materials and gas media, the change is not large, and is basically about 15V, so the near-pole voltage drops of 6 short electric arcs in figure 6 greatly increase the electric arc voltage, and the metal phase electric arc can be formed under the condition that a movable contact and a fixed contact are opened with a tiny gap, and the electric arc near-pole voltage drop is generated in the metal phase electric arc stage, so the invention realizes the separation of the surfaces of the movable contact and the fixed contact in a very short time, generates a plurality of sections of electric arcs, and rapidly improves the arc voltage of the whole device.
In conclusion, the current transfer device based on the multi-contact hydrogen arc chamber has the most obvious advantage that higher arc voltage can be generated quickly and efficiently when current is cut off, and the current transfer device is connected with the quick vacuum switch on the main through-flow branch in series for use, so that current on the main through-flow branch can be transferred to the transfer branch.
Further, the gas in the hydrogen arc chamber is pure hydrogen.
In the embodiment of the invention, because the hydrogen molecule has high movement speed and the hydrogen plasma has high thermal conductivity, and the electric arc column potential gradient rises along with the increase of the gas thermal conductivity, the electric arc voltage of hydrogen is high compared with other gases under the same condition, and the electric arc voltage generated by separating the movable contact and the fixed contact under the condition of through-flow is higher.
Further, the connection relation between the wiring terminal and the fixed contact assembly is welding.
The invention relates to a current transfer device, which is applied to a main same-current branch of a natural current conversion type hybrid direct-current circuit breaker; the device comprises: a plurality of groups of fixed contact assemblies and a plurality of groups of movable contact assemblies; the number of the fixed contact assemblies is 1 group more than that of the movable contact assemblies; the movable contact assembly is arranged on the driving rod and corresponds to the fixed contact; the two sides of the static contact assembly are both vertically provided with connecting terminals, and the two connecting terminals are respectively connected with the positive electrode and the negative electrode of an external power supply; and a certain gap is formed between the movable contact component and the static contact component, so that when the wiring terminal is connected with the external power supply, the movable contact component is separated from the static contact component under the driving of the driving rod to form electric arc.
Therefore, when the current transfer device is connected with the natural current conversion type hybrid direct current circuit breaker in series, through the pairwise matching of the static contact assembly and the moving contact assembly, very high arc voltage can be established on the main through-flow branch in a very short time, the current of the main through-flow branch is guaranteed to be transferred to the current transfer branch, and the current transfer device has the characteristics of high arc voltage improvement speed, high reliability, compact size, low cost and the like.
It should be understood that in the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" for describing an association relationship of associated objects, indicating that there may be three relationships, e.g., "a and/or B" may indicate: only A, only B and both A and B are present, wherein A and B may be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of single item(s) or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. A current transfer device is characterized in that the current transfer device is applied to a main same-current branch of a natural current conversion type hybrid direct-current circuit breaker; the device comprises: a plurality of groups of fixed contact assemblies and a plurality of groups of movable contact assemblies; the number of the fixed contact assemblies is 1 group more than that of the movable contact assemblies; the moving contact component is arranged on the driving rod and corresponds to the fixed contact component;
the two sides of the static contact assembly are both vertically provided with connecting terminals, and the two connecting terminals are respectively connected with the positive electrode and the negative electrode of an external power supply;
and a certain gap is formed between the movable contact component and the static contact component, so that when the wiring terminal is connected with the external power supply, the movable contact component is separated from the static contact component under the driving of the driving rod to form electric arc.
2. The current transfer device of claim 1, wherein the device further comprises: a hydrogen arc chamber; the hydrogen arc chamber is arranged below the moving contact component and is used for separating hydrogen plasma in the electric arc.
3. The current transfer device of claim 1, wherein the movable contact assembly is provided with a scalloped recess of equal depth and arc;
the movable contact component staggers the fan-shaped groove to be covered by the fixed contact component.
4. The current transfer device of claim 3, wherein the number of movable contact assemblies is 3 and the number of stationary contact assemblies is 4.
5. The current transfer device of claim 3 or 4, wherein the stationary contact assembly is composed of a stationary contact connector and a stationary contact; the static contact is arranged on the edge of the static contact connecting piece.
6. The current transfer device of claim 5, wherein said multi-point stationary contact connector is an insulating member.
7. The current transfer device of claim 5 or 6, wherein the movable contact assembly is comprised of a movable contact connection and a movable contact; the multipoint moving contacts are arranged at the edge of the fan-shaped groove and correspond to the multipoint fixed contacts one to one.
8. The current transfer device of claim 7, wherein the movable contact connection is the insulating member.
9. The current transfer device of claim 1, wherein the gas within the hydrogen arc chamber is pure hydrogen.
10. The current transfer device of claim 1, wherein said terminal is connected to said stationary contact assembly by welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111329263.3A CN114038717A (en) | 2021-11-10 | 2021-11-10 | Current transfer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111329263.3A CN114038717A (en) | 2021-11-10 | 2021-11-10 | Current transfer device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114038717A true CN114038717A (en) | 2022-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111329263.3A Pending CN114038717A (en) | 2021-11-10 | 2021-11-10 | Current transfer device |
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| CN (1) | CN114038717A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115172095A (en) * | 2022-09-02 | 2022-10-11 | 清华大学 | Multi-contact arc extinguish chamber structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07335110A (en) * | 1994-06-08 | 1995-12-22 | Hitachi Ltd | Circuit breaker |
| CN101170258A (en) * | 2006-10-25 | 2008-04-30 | Ls产电株式会社 | Half wave arc extinguishing type superconductive fault current limit possessing integral high speed switch module |
| US20120000753A1 (en) * | 2010-06-30 | 2012-01-05 | Schneider Electric USA, Inc. | Quad break modular circuit breaker interrupter |
| CN104766728A (en) * | 2015-04-29 | 2015-07-08 | 北京博瑞莱智能科技集团有限公司 | Electric arc erosion resisting switch |
| CN107731616A (en) * | 2017-11-16 | 2018-02-23 | 中国科学院电工研究所 | Parallel series multi-break arc-chutes |
| CN109637887A (en) * | 2019-01-29 | 2019-04-16 | 北京航空航天大学 | A kind of conversion type high-voltage DC contactor structure of contact terminal |
| 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 |
-
2021
- 2021-11-10 CN CN202111329263.3A patent/CN114038717A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07335110A (en) * | 1994-06-08 | 1995-12-22 | Hitachi Ltd | Circuit breaker |
| CN101170258A (en) * | 2006-10-25 | 2008-04-30 | Ls产电株式会社 | Half wave arc extinguishing type superconductive fault current limit possessing integral high speed switch module |
| US20120000753A1 (en) * | 2010-06-30 | 2012-01-05 | Schneider Electric USA, Inc. | Quad break modular circuit breaker interrupter |
| CN104766728A (en) * | 2015-04-29 | 2015-07-08 | 北京博瑞莱智能科技集团有限公司 | Electric arc erosion resisting switch |
| CN107731616A (en) * | 2017-11-16 | 2018-02-23 | 中国科学院电工研究所 | Parallel series multi-break arc-chutes |
| CN109637887A (en) * | 2019-01-29 | 2019-04-16 | 北京航空航天大学 | A kind of conversion type high-voltage DC contactor structure of contact terminal |
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115172095A (en) * | 2022-09-02 | 2022-10-11 | 清华大学 | Multi-contact arc extinguish chamber structure |
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