CN102751116B - Quick electromagnetic repulsion mechanism based on fault current energy and change rate and application of quick electromagnetic repulsion mechanism - Google Patents
Quick electromagnetic repulsion mechanism based on fault current energy and change rate and application of quick electromagnetic repulsion mechanism Download PDFInfo
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- CN102751116B CN102751116B CN201210250699.8A CN201210250699A CN102751116B CN 102751116 B CN102751116 B CN 102751116B CN 201210250699 A CN201210250699 A CN 201210250699A CN 102751116 B CN102751116 B CN 102751116B
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Abstract
The invention relates to a quick electromagnetic repulsion mechanism based on fault current energy and the change rate. The mechanism mainly comprises a main circuit current excitation flat plate coil (A), a metal plate (B) and a link mechanical mechanism (C). The metal plate (B) is parallelly positioned above the main circuit current excitation flat plate coil (A) and directly connected with and synchronously actions with the link mechanical mechanism (C). When the rise rate of the fault current is higher enough, the metal plate is quickly pushed away by means of the vortex electromagnetic repulsion between the main circuit current excitation flat plate coil and the metal plate, and the metal plate drives the link mechanism to move, so that the fault current energy and the change rate are fully used, and system control is not needed. The invention further relates to three specific applications of quick electromagnetic repulsion mechanism based on fault current energy and the change rate.
Description
Technical field
The present invention relates to technical field of electric appliances, particularly a kind of quick electromagnetic repulsive force mechanism and application thereof based on fault current energy and rate of change.
Background technology
Electric power system and control system major break down electric current or short circuit current protection are the most important guarantees of electric power system and the operation of automatic control system normal reliable, protection system needs quick acting mechanism to drive electrical contact system point deenergizing or quick-make current-limiting circuit fast, Chen Degui is published in " progress of control and protective switching device " literary composition of " low-voltage electrical apparatus " the 9th phase in 2008 and has introduced intelligent CPS(control and protective switching device) latest developments, in the nineties in last century, Schneider company of France releases Integral series CPS, the domestic KB0 series of also having developed, rely on and impact electromagnet as quick acting mechanism, there are many Introduction of Literatures to adopt the quick acting mechanism of capacitor discharge type electromagnetic repulsion force mechanism as switch in High-Voltage Electrical Appliances field, but these schemes all need power supply that energy and rate of change are provided, and need control system, there is the integrity problem of protection.
Summary of the invention
In view of the deficiencies in the prior art, one of object of the present invention is to provide a kind of quick electromagnetic repulsive force mechanism based on fault current energy and rate of change, and this mechanism makes full use of fault current energy and rate of change to realize quick acting and without control system.
One of to achieve these goals, technical scheme one of the present invention is: a kind of quick electromagnetic repulsive force mechanism based on fault current energy and rate of change, comprise main circuit current excitation plate coil (A), metal dish (B), connecting rod mechanical mechanism (C), described metal dish (B) is placed in parallel in the top of main circuit current excitation plate coil (A), and described metal dish (B) is directly connected with connecting rod mechanical mechanism (C) and synchronization action.
Further, the more general voltage magnetizing coil of wire diameter of described main circuit current excitation plate coil (A) is thick, and the number of turn is few compared with general voltage magnetizing coil.
Further, the material of described metal dish (B) is the metal of conduction.
In the time there is major break down electric current or short trouble, very large by main circuit current excitation plate coil current value, the climbing of electric current is very high, greatly climbing and huge fault current or short circuit current produce eddy current in the metal dish of parallel placement above main circuit current excitation plate coil, the eddy current opposite direction producing in the electric current of main circuit current excitation plate coil and metal dish, make metal dish rapid movement under powerful electrodynamic repulsion force effect, and by the switch movable contact head system of the quick stroke switch of connecting rod mechanical mechanism, switch static contact is separated or closure fast.
Two of object of the present invention is to provide the quick electromagnetic repulsive force mechanism of a kind of application based on fault current energy and rate of change to open the electrical equipment of switch contact system.
To achieve these goals two, technical scheme two of the present invention is: the quick electromagnetic repulsive force mechanism of a kind of application based on fault current energy and rate of change opened the electrical equipment of switch contact system, comprise main circuit current excitation plate coil (A), metal dish (B), connecting rod mechanical mechanism (C), switch contact system (H), switch stationary contact bridge (D), switch static contact (E), switch movable contact (F), switch movable contact bridge (G), main circuit load (L), main circuit power (U), described metal dish (B) is placed in parallel in the top of main circuit current excitation plate coil (A), described metal dish (B) is directly connected with connecting rod mechanical mechanism (C) and synchronization action, described connecting rod mechanical mechanism (C) heads on the switch movable contact bridge (G) of switch contact system (H), one end of one end connecting valve stationary contact bridge (D) of described main circuit power (U), described switch movable contact bridge (G) is positioned at the top of switch stationary contact bridge (D), described switch static contact (E) and switch movable contact (F) closure, the other end of described switch stationary contact bridge (D) is connected with one end of main circuit current excitation plate coil (A), the other end of described main circuit current excitation plate coil (A) is connected to one end of main circuit load (L), the other end of described main circuit load (L) is connected with the other end of main circuit power (U).
Further, the more general voltage magnetizing coil of wire diameter of described main circuit current excitation plate coil (A) is thick, and the number of turn is few compared with general voltage magnetizing coil.
Further, the material of described metal dish (B) is the metal of conduction.
In the time there is major break down electric current or short trouble, very large by main circuit current excitation plate coil (A) current value, the climbing of electric current is very high, greatly climbing and huge fault current or short circuit current are at the inner eddy current that produces of metal dish (B) of the parallel placement in top of main circuit current excitation plate coil (A), the eddy current opposite direction of the electric current of main circuit current excitation plate coil (A) and the inner generation of metal dish (B), make metal dish (B) rapid movement under powerful electrodynamic repulsion force effect, and by connecting rod mechanical mechanism (C) the switch movable contact bridge (G) of stroke switch fast, switch movable contact (F) is separated fast with switch static contact (E), divide deenergizing.
Three of object of the present invention is to provide the quick electromagnetic repulsive force mechanism of a kind of application based on fault current energy and rate of change to open switch contact system and seals in the electrical equipment of current limiting element.
To achieve these goals three, technical scheme three of the present invention is: a kind of application quick electromagnetic repulsive force mechanism based on fault current energy and rate of change is opened switch contact system and seal in the electrical equipment of current limiting element, comprise main circuit current excitation plate coil (A), metal dish (B), connecting rod mechanical mechanism (C), switch contact system (H), current limiting element (I), switch stationary contact bridge (D), switch static contact (E), switch movable contact (F), switch movable contact bridge (G), main circuit load (L), main circuit power (U), described metal dish (B) is placed in parallel in the top of main circuit current excitation plate coil (A), described metal dish (B) is directly connected with connecting rod mechanical mechanism (C) and synchronization action, described connecting rod mechanical mechanism (C) heads on the switch movable contact bridge (G) of switch contact system (H), one end of one end connecting valve stationary contact bridge (D) of described main circuit power (U) and one end of current limiting element (I), described switch movable contact bridge (G) is positioned at the top of switch stationary contact bridge (D), described switch static contact (E) and switch movable contact (F) closure, the other end of described switch stationary contact bridge (D) respectively with the other end of current limiting element (I), one end of main circuit current excitation plate coil (A) is connected, the other end of described main circuit current excitation plate coil (A) is connected to one end of main circuit load (L), the other end of described main circuit load (L) is connected with the other end of main circuit power (U).
Further, the more general voltage magnetizing coil of wire diameter of described main circuit current excitation plate coil (A) is thick, and the number of turn is few compared with general voltage magnetizing coil.
Further, the material of described metal dish (B) is the metal of conduction.
In the time there is major break down electric current or short trouble, very large by main circuit current excitation plate coil (A) current value, the climbing of electric current is very high, greatly climbing and huge fault current or short circuit current are at the inner eddy current that produces of metal dish (B) of the parallel placement in top of main circuit current excitation plate coil (A), the eddy current opposite direction of the electric current of main circuit current excitation plate coil (A) and the inner generation of metal dish (B), make metal dish (B) rapid movement under powerful electrodynamic repulsion force effect, and by connecting rod mechanical mechanism (C) the switch movable contact bridge (G) of stroke switch fast, switch movable contact (F) is separated fast with switch static contact (E), current limiting element (I) seals in circuit limitations electric current.
Four of object of the present invention is to provide the quick electromagnetic repulsive force mechanism closed ground switch contact system of a kind of application based on fault current energy and rate of change to seal in the electrical equipment of current limiting element.
To achieve these goals four, technical scheme four of the present invention is: the quick electromagnetic repulsive force mechanism closed ground switch contact system of a kind of application based on fault current energy and rate of change seals in the electrical equipment of current limiting element, comprise main circuit current excitation plate coil (A), metal dish (B), connecting rod mechanical mechanism (C), switch contact system (H), current limiting element (I), switch stationary contact bridge (D), switch static contact (E), switch movable contact (F), switch movable contact bridge (G), main circuit load (L), main circuit power (U), described metal dish (B) is placed in parallel in the top of main circuit current excitation plate coil (A), described metal dish (B) is directly connected with connecting rod mechanical mechanism (C) and synchronization action, described connecting rod mechanical mechanism (C) heads on the switch movable contact bridge (G) of switch contact system (H), one end of one end connecting valve stationary contact bridge (D) of described main circuit power (U) and one end of current limiting element (I), described switch stationary contact bridge (D) is positioned at the top of switch movable contact bridge (G), described switch static contact (E) separates with switch movable contact (F), the other end of described switch stationary contact bridge (D) respectively with the other end of current limiting element (I), one end of main circuit current excitation plate coil (A) is connected, the other end of described main circuit current excitation plate coil (A) is connected to one end of main circuit load (L), the other end of described main circuit load (L) is connected with the other end of main circuit power (U).
Further, the more general voltage magnetizing coil of wire diameter of described main circuit current excitation plate coil (A) is thick, and the number of turn is few compared with general voltage magnetizing coil.
Further, the material of described metal dish (B) is the metal of conduction.
In the time there is major break down electric current or short trouble, very large by main circuit current excitation plate coil (A) current value, the climbing of electric current is very high, greatly climbing and huge fault current or short circuit current are at the inner eddy current that produces of metal dish (B) of the parallel placement in top of main circuit current excitation plate coil (A), the eddy current opposite direction of the electric current of main circuit current excitation plate coil (A) and the inner generation of metal dish (B), make metal dish (B) rapid movement under powerful electrodynamic repulsion force effect, and by connecting rod mechanical mechanism (C) the switch movable contact bridge (G) of stroke switch fast, make switch movable contact (F) and switch static contact (E) quick-make, avoid prime switch to produce strong electric arc and caused danger and quick-make ground connection.
Brief description of the drawings
Fig. 1 is the organigram of the embodiment of the present invention.
Fig. 2 is the structural representation of embodiment of the present invention application one.
Fig. 3 is the structural representation of embodiment of the present invention application two.
Fig. 4 is the structural representation of embodiment of the present invention application three.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further elaborated.
As shown in Figure 1, a kind of quick electromagnetic repulsive force mechanism based on fault current energy and rate of change, comprise main circuit current excitation plate coil (A), metal dish (B), connecting rod mechanical mechanism (C), described metal dish (B) is placed in parallel in the top of main circuit current excitation plate coil (A), and described metal dish (B) is directly connected with connecting rod mechanical mechanism (C) and synchronization action.
In the present embodiment, the more general voltage magnetizing coil of wire diameter of described main circuit current excitation plate coil (A) is thick, and the number of turn is few compared with general voltage magnetizing coil.The material of described metal dish (B) is the metal of conduction.
In the time there is major break down electric current or short trouble, very large by main circuit current excitation plate coil (A) current value, the climbing of electric current is very high, greatly climbing and huge fault current or short circuit current are at the inner eddy current that produces of metal dish (B) of the parallel placement in top of main circuit current excitation plate coil (A), the eddy current opposite direction of the electric current of main circuit current excitation plate coil (A) and the inner generation of metal dish (B), make metal dish (B) rapid movement under powerful electrodynamic repulsion force effect, and by connecting rod mechanical mechanism (C) the switch movable contact head system of stroke switch fast, switch static contact is separated or closure fast.
The present embodiment application one: as shown in Figure 2, the quick electromagnetic repulsive force mechanism of a kind of application based on fault current energy and rate of change opened the electrical equipment of switch contact system, comprise main circuit current excitation plate coil (A), metal dish (B), connecting rod mechanical mechanism (C), switch contact system (H), switch stationary contact bridge (D), switch static contact (E), switch movable contact (F), switch movable contact bridge (G), main circuit load (L), main circuit power (U), described metal dish (B) is placed in parallel in the top of main circuit current excitation plate coil (A), described metal dish (B) is directly connected with connecting rod mechanical mechanism (C) and synchronization action, described connecting rod mechanical mechanism (C) heads on the switch movable contact bridge (G) of switch contact system (H), one end of one end connecting valve stationary contact bridge (D) of described main circuit power (U), described switch movable contact bridge (G) is positioned at the top of switch stationary contact bridge (D), described switch static contact (E) and switch movable contact (F) closure, the other end of described switch stationary contact bridge (D) is connected with one end of main circuit current excitation plate coil (A), the other end of described main circuit current excitation plate coil (A) is connected to one end of main circuit load (L), the other end of described main circuit load (L) is connected with the other end of main circuit power (U).
The operation principle of the present embodiment application one is as follows: in the time there is major break down electric current or short trouble, very large by main circuit current excitation plate coil (A) current value, the climbing of electric current is very high, greatly climbing and huge fault current or short circuit current are at the inner eddy current that produces of metal dish (B) of the parallel placement in top of main circuit current excitation plate coil (A), the eddy current opposite direction of the electric current of main circuit current excitation plate coil (A) and the inner generation of metal dish (B), make metal dish (B) rapid movement under powerful electrodynamic repulsion force effect, and by connecting rod mechanical mechanism (C) the switch movable contact bridge (G) of stroke switch fast, switch movable contact (F) is separated fast with switch static contact (E), divide deenergizing.
The present embodiment application two: as shown in Figure 3, a kind of application quick electromagnetic repulsive force mechanism based on fault current energy and rate of change is opened switch contact system and seals in the electrical equipment of current limiting element, comprise main circuit current excitation plate coil (A), metal dish (B), connecting rod mechanical mechanism (C), switch contact system (H), current limiting element (I), switch stationary contact bridge (D), switch static contact (E), switch movable contact (F), switch movable contact bridge (G), main circuit load (L), main circuit power (U), described metal dish (B) is placed in parallel in the top of main circuit current excitation plate coil (A), described metal dish (B) is directly connected with connecting rod mechanical mechanism (C) and synchronization action, described connecting rod mechanical mechanism (C) heads on the switch movable contact bridge (G) of switch contact system (H), one end of one end connecting valve stationary contact bridge (D) of described main circuit power (U) and one end of current limiting element (I), described switch movable contact bridge (G) is positioned at the top of switch stationary contact bridge (D), described switch static contact (E) and switch movable contact (F) closure, the other end of described switch stationary contact bridge (D) respectively with the other end of current limiting element (I), one end of main circuit current excitation plate coil (A) is connected, the other end of described main circuit current excitation plate coil (A) is connected to one end of main circuit load (L), the other end of described main circuit load (L) is connected with the other end of main circuit power (U).
The operation principle of the present embodiment application two is as follows: in the time there is major break down electric current or short trouble, very large by main circuit current excitation plate coil (A) current value, the climbing of electric current is very high, greatly climbing and huge fault current or short circuit current are at the inner eddy current that produces of metal dish (B) of the parallel placement in top of main circuit current excitation plate coil (A), the eddy current opposite direction of the electric current of main circuit current excitation plate coil (A) and the inner generation of metal dish (B), make metal dish (B) rapid movement under powerful electrodynamic repulsion force effect, and by connecting rod mechanical mechanism (C) the switch movable contact bridge (G) of stroke switch fast, switch movable contact (F) is separated fast with switch static contact (E), current limiting element (I) seals in circuit limitations electric current.
The present embodiment application three: as shown in Figure 4, the quick electromagnetic repulsive force mechanism closed ground switch contact system of a kind of application based on fault current energy and rate of change seals in the electrical equipment of current limiting element, comprise main circuit current excitation plate coil (A), metal dish (B), connecting rod mechanical mechanism (C), switch contact system (H), current limiting element (I), switch stationary contact bridge (D), switch static contact (E), switch movable contact (F), switch movable contact bridge (G), main circuit load (L), main circuit power (U), described metal dish (B) is placed in parallel in the top of main circuit current excitation plate coil (A), described metal dish (B) is directly connected with connecting rod mechanical mechanism (C) and synchronization action, described connecting rod mechanical mechanism (C) heads on the switch movable contact bridge (G) of switch contact system (H), one end of one end connecting valve stationary contact bridge (D) of described main circuit power (U) and one end of current limiting element (I), described switch stationary contact bridge (D) is positioned at the top of switch movable contact bridge (G), described switch static contact (E) separates with switch movable contact (F), the other end of described switch stationary contact bridge (D) respectively with the other end of current limiting element (I), one end of main circuit current excitation plate coil (A) is connected, the other end of described main circuit current excitation plate coil (A) is connected to one end of main circuit load (L), the other end of described main circuit load (L) is connected with the other end of main circuit power (U).
The operation principle of the present embodiment application three is as follows: in the time there is major break down electric current or short trouble, very large by main circuit current excitation plate coil (A) current value, the climbing of electric current is very high, greatly climbing and huge fault current or short circuit current are at the inner eddy current that produces of metal dish (B) of the parallel placement in top of main circuit current excitation plate coil (A), the eddy current opposite direction of the electric current of main circuit current excitation plate coil (A) and the inner generation of metal dish (B), make metal dish (B) rapid movement under powerful electrodynamic repulsion force effect, and by connecting rod mechanical mechanism (C) the switch movable contact bridge (G) of stroke switch fast, make switch movable contact (F) and switch static contact (E) quick-make, avoid prime switch to produce strong electric arc and caused danger and quick-make ground connection.
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (3)
1. the application quick electromagnetic repulsive force mechanism based on fault current energy and rate of change is opened the electrical equipment of switch contact system, comprise main circuit current excitation plate coil (A), metal dish (B), connecting rod mechanical mechanism (C), switch contact system (H), switch stationary contact bridge (D), switch static contact (E), switch movable contact (F), switch movable contact bridge (G), main circuit load (L), main circuit power (U), it is characterized in that: described metal dish (B) is placed in parallel in the top of main circuit current excitation plate coil (A), described metal dish (B) is directly connected with connecting rod mechanical mechanism (C) and synchronization action, described connecting rod mechanical mechanism (C) heads on the switch movable contact bridge (G) of switch contact system (H), one end of one end connecting valve stationary contact bridge (D) of described main circuit power (U), described switch movable contact bridge (G) is positioned at the top of switch stationary contact bridge (D), described switch static contact (E) and switch movable contact (F) closure, the other end of described switch stationary contact bridge (D) is connected with one end of main circuit current excitation plate coil (A), the other end of described main circuit current excitation plate coil (A) is connected to one end of main circuit load (L), the other end of described main circuit load (L) is connected with the other end of main circuit power (U), the more general voltage magnetizing coil of wire diameter of described main circuit current excitation plate coil (A) is thick, the number of turn is few compared with general voltage magnetizing coil.
2. the application quick electromagnetic repulsive force mechanism based on fault current energy and rate of change is opened switch contact system and seals in the electrical equipment of current limiting element, comprise main circuit current excitation plate coil (A), metal dish (B), connecting rod mechanical mechanism (C), switch contact system (H), current limiting element (I), switch stationary contact bridge (D), switch static contact (E), switch movable contact (F), switch movable contact bridge (G), main circuit load (L), main circuit power (U), it is characterized in that: described metal dish (B) is placed in parallel in the top of main circuit current excitation plate coil (A), described metal dish (B) is directly connected with connecting rod mechanical mechanism (C) and synchronization action, described connecting rod mechanical mechanism (C) heads on the switch movable contact bridge (G) of switch contact system (H), one end of one end connecting valve stationary contact bridge (D) of described main circuit power (U) and one end of current limiting element (I), described switch movable contact bridge (G) is positioned at the top of switch stationary contact bridge (D), described switch static contact (E) and switch movable contact (F) closure, the other end of described switch stationary contact bridge (D) respectively with the other end of current limiting element (I), one end of main circuit current excitation plate coil (A) is connected, the other end of described main circuit current excitation plate coil (A) is connected to one end of main circuit load (L), the other end of described main circuit load (L) is connected with the other end of main circuit power (U), the more general voltage magnetizing coil of wire diameter of described main circuit current excitation plate coil (A) is thick, the number of turn is few compared with general voltage magnetizing coil.
3. the application quick electromagnetic repulsive force mechanism closed ground switch contact system based on fault current energy and rate of change seals in the electrical equipment of current limiting element, comprise main circuit current excitation plate coil (A), metal dish (B), connecting rod mechanical mechanism (C), switch contact system (H), current limiting element (I), switch stationary contact bridge (D), switch static contact (E), switch movable contact (F), switch movable contact bridge (G), main circuit load (L), main circuit power (U), it is characterized in that: described metal dish (B) is placed in parallel in the top of main circuit current excitation plate coil (A), described metal dish (B) is directly connected with connecting rod mechanical mechanism (C) and synchronization action, described connecting rod mechanical mechanism (C) heads on the switch movable contact bridge (G) of switch contact system (H), one end of one end connecting valve stationary contact bridge (D) of described main circuit power (U) and one end of current limiting element (I), described switch stationary contact bridge (D) is positioned at the top of switch movable contact bridge (G), described switch static contact (E) separates with switch movable contact (F), the other end of described switch stationary contact bridge (D) respectively with the other end of current limiting element (I), one end of main circuit current excitation plate coil (A) is connected, the other end of described main circuit current excitation plate coil (A) is connected to one end of main circuit load (L), the other end of described main circuit load (L) is connected with the other end of main circuit power (U), the more general voltage magnetizing coil of wire diameter of described main circuit current excitation plate coil (A) is thick, the number of turn is few compared with general voltage magnetizing coil.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210250699.8A CN102751116B (en) | 2012-07-19 | 2012-07-19 | Quick electromagnetic repulsion mechanism based on fault current energy and change rate and application of quick electromagnetic repulsion mechanism |
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| CN201210250699.8A CN102751116B (en) | 2012-07-19 | 2012-07-19 | Quick electromagnetic repulsion mechanism based on fault current energy and change rate and application of quick electromagnetic repulsion mechanism |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015176734A1 (en) * | 2014-05-19 | 2015-11-26 | Abb Technology Ltd | High speed limiting electrical switchgear device |
| CN105513844B (en) * | 2015-12-22 | 2018-04-13 | 福州大学 | Based on fault current energy and the quick electromagnetic tensile machine of change rate and its application |
| CN106601545A (en) * | 2017-02-27 | 2017-04-26 | 大连理工大学 | Novel vacuum interrupter structure |
| CN112180287A (en) * | 2019-07-05 | 2021-01-05 | 武汉理工大学 | Magnetic bearing coil fault on-line detection method |
| CN112821348A (en) * | 2021-01-28 | 2021-05-18 | 中国人民解放军海军工程大学 | Short-circuit current self-driven current-limiting direct current breaker |
| CN112951651A (en) * | 2021-01-28 | 2021-06-11 | 中国人民解放军海军工程大学 | Short-circuit current self-driven quick switch |
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