CN201332047Y - SF6 high-voltage breaker electromagnetic force drive mechanism - Google Patents
SF6 high-voltage breaker electromagnetic force drive mechanism Download PDFInfo
- Publication number
- CN201332047Y CN201332047Y CNU2008202321454U CN200820232145U CN201332047Y CN 201332047 Y CN201332047 Y CN 201332047Y CN U2008202321454 U CNU2008202321454 U CN U2008202321454U CN 200820232145 U CN200820232145 U CN 200820232145U CN 201332047 Y CN201332047 Y CN 201332047Y
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- electromagnetic force
- iron core
- permanent magnet
- driving mechanism
- drive mechanism
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Abstract
The utility model relates to an SF6 high-voltage breaker electromagnetic force drive mechanism, which belongs to the technical field of power transmission and transformation equipment. The device comprises an SF6 high-voltage breaker, a link rod and an electromagnetic force drive mechanism; wherein, a drive rod of the electromagnetic force drive mechanism is connected with the link rod; the electromagnetic force drive mechanism consists of primary iron cores, secondary iron cores, main permanent magnets, auxiliary permanent magnets, magnetism-insulating materials, winding coils and the drive rod; the secondary iron cores in the electromagnetic force drive mechanism are driven by the electromagnetic force in the magnetic field to drive the moving contacts of the SF6 high-voltage breaker to conduct on/off movements; and the auxiliary permanent magnets in the electromagnetic force drive mechanism can keep the on/off positions of the high-voltage breaker fixed. The utility model has the following advantages: the auxiliary permanent magnets are adopted to keep the on/off positions of the high-voltage breaker fixed; the electromagnetic force drive mechanism is light, has low inertia and can be conveniently controlled; and the winding coils are arranged in the secondary iron cores and driven by the movement of the secondary iron cores to move, so that the drive mechanism can be prevented from losing excitation.
Description
Technical field
The utility model belongs to the power transmission and transforming equipment technical field, particularly a kind of SF
6The primary cut-out electromagnetic force driving mechanism is applicable to the novel operating mechanism of intellectualized operation.
Background technology
Primary cut-out is a switchgear important in the electric power system, is undertaking the dual role of control and protection.The quality of its performance is one of key factor that can the decision electric power system safe operation.Along with people are more and more higher to the requirement of power supply quality and power supply reliability, also more and more higher to the reliability of primary cut-out and non-maintaining requirement, operating mechanism is the important component part of circuit breaker, be one of critical component of decision circuit breaker branch, combined floodgate performance, the quality of its performance will directly have influence on the technical performance of circuit breaker.Therefore, the functional reliability of circuit breaker depends on the reliable in action of operating mechanism to a great extent.
The operating mechanism of primary cut-out, be to be used for the moving contact motion of actuating primary cut-out, reach the branch of circuit breaker, the mechanism of combined floodgate purpose, the mechanical structure of operating mechanism, drive characteristic and outputting power characteristic curve, determining the closure of contact, the speed characteristics of disjunction, also influence the branch of circuit breaker, the quality of combined floodgate, concern the safe operation of whole electrical network.
From the fault statistics numeral of circuit breaker, the ratio that the accident that causes owing to the operating mechanism reason accounts for total accident is very big.As seen operating mechanism plays an important role to circuit breaker service behaviour and reliability, and therefore, the research and development of novel operating mechanism are very necessary.Operating mechanism in the past mainly contains hydraulic actuating mechanism, spring operating mechanism or pneumatic operating mechanism, and they mostly exist parts many, transmission mechanism complexity, or manufacture process requirement height, and motion process is uncontrollable.Therefore, in circuit breaker today to high voltage, big capacity, high reliability development, in order to satisfy the requirement of electric power system, be necessary to study that a kind of volume is little, parts are few, simple and reliable for structure, dynamic property good and motion process is controlled operating mechanism to high reliability.
Summary of the invention
In order to solve defective and the deficiency that above-mentioned various traditional operating mechanism exists, the utility model provides a kind of SF of being used for
6The primary cut-out electromagnetic force driving mechanism has saved the most transmission mechanism part of traditional operating mechanism, directly utilizes the rectilinear motion of operating mechanism to drive SF
6Thereby the moving contact of primary cut-out is realized branch/combined floodgate.
This device comprises SF
6Primary cut-out, connecting rod and electromagnetic force driving mechanism, the drive link of electromagnetic force driving mechanism and SF
6The moving contact of primary cut-out connects by connecting rod, and the secondary iron core in the electromagnetic force driving mechanism is subjected to electromagnetic force in magnetic field effect drives SF
6The moving contact divide-shut brake motion of primary cut-out, electromagnetic force driving mechanism is provided with auxiliary permanent magnet, and auxiliary permanent magnet is maintained fixed the branch/closing position of primary cut-out.
Electromagnetic force driving mechanism comprises elementary iron core, secondary iron core, main permanent magnet, auxiliary permanent magnet, NULL, winding coil and drive link, wherein the elementary iron core of electromagnetic force driving mechanism is made of cylindrical magnetic material and cylindrical permeability magnetic material, cylindrical elementary iron core is positioned at the axle center of the elementary iron core of cylindrical shape, the inwall of the elementary iron core of cylindrical shape embeds columnar auxiliary permanent magnet from top to bottom successively, NULL, main permanent magnet, NULL and auxiliary permanent magnet, the outer wall of cylindrical elementary iron core embeds columnar auxiliary permanent magnet from top to bottom successively, NULL, main permanent magnet, NULL and auxiliary permanent magnet, be provided with columnar secondary iron core between elementary iron core of cylindrical shape and the cylindrical elementary iron core, be provided with winding coil in the secondary iron core, drive link connects secondary iron core, and elementary iron core inside wall height is 200mm～220mm.Auxiliary permanent magnet thickness is 5mm～6mm.
The effect that is subjected to electromagnetic force at electromagnetic force driving mechanism in magnetic field drives SF
6The moving contact divide-shut brake process of primary cut-out, auxiliary permanent magnet in the electromagnetic force driving mechanism is maintained fixed the branch/closing position of primary cut-out, the principle that realizes above-mentioned functions is to be main permanent magnet in the middle of the electromagnetic force driving mechanism, set up main field, when feeding direct current, because secondary iron core is subjected to the effect setting in motion of electromagnetic force in magnetic field, realize SF by drive link and connecting rod
6The moving contact motion of primary cut-out, and then the divide-shut brake process of realization primary cut-out, the auxiliary permanent magnet in the electromagnetic force driving mechanism is maintained fixed the branch/closing position of primary cut-out.
Advantage of the present utility model is used auxiliary permanent magnet is maintained fixed the branch/closing position of primary cut-out, the electromagnetic force driving mechanism quality is little, inertia is little, be convenient to control, winding coil places in the secondary iron core, drive the winding coil motion by secondary iron core motion, prevent the electromagnetic force driving mechanism loss of excitation.
Description of drawings
Fig. 1 is SF in the utility model
6The structural representation of primary cut-out electromagnetic force driving mechanism;
Fig. 2 is the structural representation of electromagnetic force driving mechanism in the utility model.
Among Fig. 1: 1SF
6The moving contact of primary cut-out, 2 connecting rods, 3 electromagnetic force driving mechanisms;
Among Fig. 2: 4 winding coils, 5 level iron cores, 6 drive links, the elementary iron core of 7 cylindrical shapes, 8 cylindrical elementary iron cores, 9 auxiliary permanent magnets, 10 NULL, 11 main permanent magnets.
Embodiment
The utility model is with 126kV SF
6Circuit breaker is an example, and it is 21000N that arc control device require electromagnetic force driving mechanism that the separating brake electromagnetic push is provided, and opening velocity is 4.2～4.8m/s; And its electromagnetic push is 15000N when closing a floodgate, and closing speed is 1.4～1.7m/s.
This device comprises SF as shown in Figure 1
6Primary cut-out, connecting rod 2 and electromagnetic force driving mechanism 3, the drive link 6 and the SF of electromagnetic force driving mechanism 3
6The moving contact 1 of primary cut-out connects by connecting rod 2, and the secondary iron core 5 in the electromagnetic force driving mechanism 3 is subjected to electromagnetic force in magnetic field effect drives SF
6The moving contact 1 divide-shut brake motion of primary cut-out, the auxiliary permanent magnet 9 in the electromagnetic force driving mechanism 3 is maintained fixed the branch/closing position of primary cut-out.
Electromagnetic force driving mechanism comprises elementary iron core as shown in Figure 2, secondary iron core 5, main permanent magnet 11, auxiliary permanent magnet 9, NULL 10, winding coil 4 and drive link 6, wherein the elementary iron core of electromagnetic force driving mechanism 3 is made of cylindrical magnetic material and cylindrical permeability magnetic material, cylindrical elementary iron core 8 is positioned at the axle center of the elementary iron core 7 of cylindrical shape, the inwall of the elementary iron core 7 of cylindrical shape embeds columnar auxiliary permanent magnet 9 from top to bottom successively, NULL 10, main permanent magnet 11, NULL 10 and auxiliary permanent magnet 9, the outer wall of cylindrical elementary iron core 8 embeds columnar auxiliary permanent magnet 9 from top to bottom successively, NULL 10, main permanent magnet 11, NULL 10 and auxiliary permanent magnet 9, be provided with columnar secondary iron core 5 between elementary iron core 7 of cylindrical shape and the cylindrical elementary iron core 8, be provided with winding coil 4 in the secondary iron core 5, drive link 6 connects secondary iron core 5, and elementary iron core inside wall height is 200mm～220mm.Auxiliary permanent magnet thickness is 5mm～6mm.
Claims (4)
1, a kind of SF
6The primary cut-out electromagnetic force driving mechanism comprises SF
6Primary cut-out and connecting rod, drive link in the electromagnetic force driving mechanism and SF
6The moving contact of primary cut-out connects by connecting rod, it is characterized in that: be provided with auxiliary permanent magnet in the electromagnetic force driving mechanism.
2, SF according to claim 1
6The primary cut-out electromagnetic force driving mechanism, it is characterized in that described electromagnetic force driving mechanism comprises elementary iron core, secondary iron core, main permanent magnet, auxiliary permanent magnet, NULL, winding coil and drive link, wherein the elementary iron core of electromagnetic force driving mechanism is made of cylindrical magnetic material and cylindrical permeability magnetic material, cylindrical elementary iron core is positioned at the axle center of the elementary iron core of cylindrical shape, the inwall of the elementary iron core of cylindrical shape embeds columnar auxiliary permanent magnet from top to bottom successively, NULL, main permanent magnet, NULL and auxiliary permanent magnet, the outer wall of cylindrical elementary iron core embeds columnar auxiliary permanent magnet from top to bottom successively, NULL, main permanent magnet, NULL and auxiliary permanent magnet, be provided with columnar secondary iron core between elementary iron core of cylindrical shape and the cylindrical elementary iron core, be provided with winding coil in the secondary iron core, drive link connects secondary iron core.
3, SF according to claim 2
6The primary cut-out electromagnetic force driving mechanism is characterized in that described elementary iron core inside wall height is 200mm～220mm.
4, SF according to claim 2
6The primary cut-out electromagnetic force driving mechanism is characterized in that described auxiliary permanent magnet thickness is 5mm～6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202321454U CN201332047Y (en) | 2008-12-26 | 2008-12-26 | SF6 high-voltage breaker electromagnetic force drive mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202321454U CN201332047Y (en) | 2008-12-26 | 2008-12-26 | SF6 high-voltage breaker electromagnetic force drive mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201332047Y true CN201332047Y (en) | 2009-10-21 |
Family
ID=41225429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202321454U Expired - Fee Related CN201332047Y (en) | 2008-12-26 | 2008-12-26 | SF6 high-voltage breaker electromagnetic force drive mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201332047Y (en) |
-
2008
- 2008-12-26 CN CNU2008202321454U patent/CN201332047Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091021 Termination date: 20101226 |