CN103560037A - Load disconnecting switch - Google Patents
Load disconnecting switch Download PDFInfo
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- CN103560037A CN103560037A CN201310494323.6A CN201310494323A CN103560037A CN 103560037 A CN103560037 A CN 103560037A CN 201310494323 A CN201310494323 A CN 201310494323A CN 103560037 A CN103560037 A CN 103560037A
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Abstract
The invention discloses a load disconnecting switch. The load disconnecting switch comprises an insulating frame and an operating mechanism fixed on the frame, a contact system and an arc extinguish chamber, and magnetic blow-out coils are arranged at the two ends of the arc extinguish chamber. The contact system comprises a static contact base, a static arc contact and a static main contact, the static arc contact and the static main contact are fixed on the static contact base, a shaft is arranged at the bottom of the static contact base, a dynamic contact is installed on the shaft, a dynamic arc contact, a dynamic main contact and a spring are fixed on the dynamic contact, the static arc contact is arranged between the magnetic blow-out coils and the dynamic arc contact, the static arc contact is connected with a static arc strike angle, the magnetic blow-out coils are connected with the static arc strike angle and the static contact base, the dynamic contact is connected with a flexible coupling through the dynamic contact base, and the operating mechanism is connected with the dynamic contact through a pushing rod. The load disconnecting switch has the advantages that a fault large current is conducted, a rated load current is disconnected, the load disconnecting switch can bear a large current within a short time, the structure is compact, working is safe and reliable, and the load disconnecting switch is suitable for an urban railway system direct current traction power supply system and serves as a longitudinal load operating power-driven disconnecting switch.
Description
Technical field
The present invention relates to a kind of load-break switch, the isolating switch particularly can on-load operating.
Background technology
Current domestic subway is many establishes vertical connection electric isolating switch in electric segmentation place of traction net, to guarantee carrying out large two-side feeding when the traction substation off-the-line.
No matter existing isolating switch is electronic or manual, all can not on-load operation.For assurance equipment and personal safety, all necessary operation interlocking should be set, in the actual motion of subway, the interlocking condition of operation electric isolating switch is too many, and the time that realize large two-side feeding is longer, and the operation of power failure back brake brings the problem of train Temporarily Closed.
If design a kind of load-break switch, substitute existing electric isolating switch, can cancel all interlocking conditions, dispatcher can operate vertical connection load-break switch as required at any time, any road feeds out that switch fault exits or traction substation off-the-line, can realize large two-side feeding by the vertical connection of quick-make load-break switch, for power scheduling operation in service brings great convenience with quick.
Summary of the invention
The object of this invention is to provide a kind of load-break switch, it is had and connect the large electric current of fault, disjunction nominal load current and short time and tolerate large current capacity, substitute existing electric isolating switch.
The technical solution adopted for the present invention to solve the technical problems is: a kind of load-break switch, comprise Insulating frame and be fixed on the operating mechanism on framework, contact system and arc control device, described arc control device two ends are arranged with blowout coil, described contact system comprises fixed contact pedestal and is fixed on static arc contact and the quiet main contact on fixed contact pedestal, described fixed contact base bottom is provided with axle, moving contact is installed on axle, on moving contact, be fixed with moving arcing contact, moving main contact and spring, described static arc contact is located between blowout coil and moving arcing contact, on static arc contact, be connected with quiet arc leading angle, described blowout coil is connected with quiet arc leading angle and fixed contact pedestal, described moving contact is connected with and is flexible coupling by moving contact pedestal, described operating mechanism is connected with moving contact by push rod.
Described a kind of load-break switch, its contact system is multipole contact system in parallel, and moving arcing contact has two, and moving main contact has three.
Described a kind of load-break switch, its contact system is multipole contact system in parallel, moving arcing contact and moving main contact are two.
Described electric multipole motor isolating switch, its blowout coil outside is fixed with magnetic conductive board.
Described electric multipole motor isolating switch, its operating mechanism is permanent-magnet operating mechanism, arc control device are grid chip arc control device.
Described electric multipole motor isolating switch, has two static arc contacts and three quiet main contacts on its fixed contact pedestal.
The invention has the beneficial effects as follows:
1, by the design of the moving moving two grades of contacts of arc of advocating peace on fixed contact pedestal, make moving arcing contact bear the task of connecting load and breaking arc, moving main contact is born large electric current current-carrying task, thereby switch has been taken into account current capacity and has been connected the strong feature of disjunction, thereby when switch is closed, by the identical generation of the sense of current between moving main contact and moving arcing contact, strengthen the electromagnetic attraction of contact, solved the closed spring problem of moving arcing contact, the short time withstand current ability of switch is improved greatly, electrodynamic repulsion force while adopting in addition the contact system of multipole parallel connection further to reduce closure,
2, by blowout coil, realize being electrically connected to of quiet arc leading angle and fixed contact pedestal, the fixing magnetic conductive board in blowout coil and arc control device two outsides simultaneously, make switch when disjunction is loaded, electric arc connects blowout coil into major loop, thereby make blowout coil produce the magnetic field that is conducive to arc extinction, strengthen the breaking capacity of switch;
3, adopt permanent-magnet operating mechanism, reduce driving parts quantity, improve switch reliability, reduce volume of switch simultaneously;
4, adopt grid chip arc control device, the overvoltage producing in the time of can reducing breaking arc reduces switch Hu district simultaneously.
Accompanying drawing explanation
Fig. 1 is internal structure schematic diagram of the present invention;
Fig. 2 is the structural representation of moving contact the first embodiment of the present invention;
Fig. 3 is the structural representation of moving contact the second embodiment of the present invention.
Wherein: 1-arc control device, 1.1-quiet arc leading angle, 2-blowout coil, 3-contact system, 3.1-fixed contact pedestal, 3.2-static arc contact, 3.3-quiet main contact, 3.4-moving contact, 3.41-moving arcing contact, 3.42-moving main contact, 3.43-spring, 3.5-moving contact pedestal, 3.6-be flexible coupling, 4-operating mechanism, 4.1-push rod, 5-framework, 6-axle.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
With reference to Fig. 1, shown in Fig. 2 and Fig. 3, the invention discloses a kind of load-break switch, comprise Insulating frame 5 and be fixed on the operating mechanism 4 on framework 5, contact system 3 and arc control device 1, described arc control device 1 are grid chip arc control device, arc control device 1 two ends are provided with blowout coil 2, blowout coil 2 and arc control device 1 also come framework 5 two ends, blowout coil 2 outsides are fixed with magnetic conductive board, make switch when disjunction is loaded, electric arc connects blowout coil into major loop, thereby make blowout coil produce the magnetic field that is conducive to arc extinction, strengthen the breaking capacity of switch, described operating mechanism 4 is permanent-magnet operating mechanism, described contact system 3 comprises fixed contact pedestal 3.1 and is fixed on two static arc contacts 3.2 and three the quiet main contacts 3.3 on fixed contact pedestal 3.1, blowout coil 2 is for realizing being electrically connected to of quiet arc leading angle 1.1 and static arc contact 3.2, described fixed contact pedestal 3.1 bottoms are provided with axle 6, moving contact 3.4 is installed on axle 6, on moving contact 3.4, be fixed with moving arcing contact 3.41, moving main contact 3.42 and spring 3.43, described static arc contact 3.2 is located between blowout coil 2 and moving arcing contact 3.41, on static arc contact 3.2, be connected with quiet arc leading angle 1.1, described blowout coil 2 is connected with quiet arc leading angle 1.1 and fixed contact pedestal 3.1, described moving contact 3.4 is connected with and is flexible coupling 3.6 by moving contact pedestal 3.5, described operating mechanism 4 is connected with moving contact 3.4 by push rod 4.1, the present invention makes moving arcing contact 3.41 bear the task of connecting load and breaking arc, moving main contact 3.42 is born large electric current current-carrying task, thereby switch has been taken into account current capacity and has been connected the strong feature of disjunction, thereby when switch is closed, by the identical generation of the sense of current between moving main contact 3.42 and moving arcing contact 3.41, strengthen the electromagnetic attraction of contact, solved the closed spring problem of moving arcing contact 3.41, the short time withstand current ability of switch is improved greatly.
As specific embodiment, described contact system 3 is multipole contact system in parallel, electrodynamic repulsion force while adopting the contact system of multipole parallel connection further to reduce closure, Figure 2 shows that the first embodiment of moving contact 3.4 of the present invention, moving arcing contact 3.41 has two, moving main contact 3.42 has three, Figure 3 shows that the second embodiment of moving contact 3.4 of the present invention, and moving arcing contact 3.41 and moving main contact 3.42 are two.
When there is to close a floodgate rotation in moving contact 3.4, moving arcing contact 3.41 first contacts with static arc contact 3.2, after turning an angle, moving main contact 3.42 contacts with quiet main contact 3.3 again, when there is separating brake rotation in moving contact 3.4, moving arcing contact 3.41 is first separated with static arc contact 3.2 under operating mechanism 4 effects, after turning an angle, moving main contact 3.42 is separated with quiet main contact 3.3 again, the present invention has the large electric current of the fault of connection, disjunction nominal load current and short time tolerate large current capacity, and compact conformation, safe and reliable, be applicable to urban track traffic DC traction power-supply system, as vertical associated year operation electric isolating switch, use, realize the large two-side feeding back brake operation that do not have a power failure.
Above-described is only the preferred embodiment of the present invention, it should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise of the invention, can also make some distortion and improvement, and these all belong to protection scope of the present invention.
Claims (8)
1. a load-break switch, it is characterized in that: comprise Insulating frame (5) and be fixed on the operating mechanism (4) on framework (5), contact system (3) and arc control device (1), described arc control device (1) two ends are arranged with blowout coil (2), described contact system (3) comprises fixed contact pedestal (3.1) and is fixed on static arc contact (3.2) and the quiet main contact (3.3) on fixed contact pedestal (3.1), described fixed contact pedestal (3.1) bottom is provided with axle (6), moving contact (3.4) is installed on axle (6), on moving contact (3.4), be fixed with moving arcing contact (3.41), moving main contact (3.42) and spring (3.43), described static arc contact (3.2) is located between blowout coil (2) and moving arcing contact (3.41), on static arc contact (3.2), be connected with quiet arc leading angle (1.1), described blowout coil (2) is connected with quiet arc leading angle (1.1) and fixed contact pedestal (3.1), described moving contact (3.4) is connected with by moving contact pedestal (3.5) be flexible coupling (3.6), described operating mechanism (4) is connected with moving contact (3.4) by push rod (4.1).
2. a kind of load-break switch according to claim 1, is characterized in that, described contact system (3) is multipole contact system in parallel.
3. electric multipole motor isolating switch according to claim 2, is characterized in that: described moving arcing contact (3.41) has two, and moving main contact (3.42) has three.
4. electric multipole motor isolating switch according to claim 2, is characterized in that: described moving arcing contact (3.41) and moving main contact (3.42) are two.
5. according to the electric multipole motor isolating switch described in claim 1 or 2 or 3 or 4, it is characterized in that: described blowout coil (2) outside is fixed with magnetic conductive board.
6. electric multipole motor isolating switch according to claim 5, is characterized in that: described operating mechanism (4) is permanent-magnet operating mechanism.
7. electric multipole motor isolating switch according to claim 6, is characterized in that: described arc control device (1) are grid chip arc control device.
8. electric multipole motor isolating switch according to claim 7, is characterized in that: on described fixed contact pedestal (3.1), have two static arc contacts (3.2) and three quiet main contacts (3.3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310494323.6A CN103560037B (en) | 2013-10-21 | 2013-10-21 | A kind of load-break switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310494323.6A CN103560037B (en) | 2013-10-21 | 2013-10-21 | A kind of load-break switch |
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| Publication Number | Publication Date |
|---|---|
| CN103560037A true CN103560037A (en) | 2014-02-05 |
| CN103560037B CN103560037B (en) | 2016-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310494323.6A Active CN103560037B (en) | 2013-10-21 | 2013-10-21 | A kind of load-break switch |
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| CN (1) | CN103560037B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104157490A (en) * | 2014-08-27 | 2014-11-19 | 武汉长海电气科技开发有限公司 | High-voltage direct current contactor contact system |
| CN104576121A (en) * | 2015-01-21 | 2015-04-29 | 北京双杰电气股份有限公司 | Magnetic blow-out arc extinguishing switch |
| CN105762000A (en) * | 2016-04-06 | 2016-07-13 | 中国船舶重工集团公司第七〇二研究所 | DC load isolation switch |
| CN106783351A (en) * | 2017-02-24 | 2017-05-31 | 山东泰开隔离开关有限公司 | A kind of single armed is folded for insertion into formula ± 1100kV extra-high voltage direct-current disconnecting switch |
| CN109148177A (en) * | 2018-09-30 | 2019-01-04 | 浙江中乾电气有限公司 | Transhipment formula electromagnetic switch mechanism |
| CN109166747A (en) * | 2018-10-16 | 2019-01-08 | 武汉长海电气科技开发有限公司 | A kind of DC load switch |
| CN114203492A (en) * | 2021-12-23 | 2022-03-18 | 江苏其厚智能电气设备有限公司 | Plastic shell type circuit breaker contact system with arc contacts |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02148524A (en) * | 1988-11-29 | 1990-06-07 | Mitsubishi Electric Corp | Breaker for use in vehicle |
| CN2133045Y (en) * | 1992-09-09 | 1993-05-12 | 黄科云 | 10 kv air high voltage a.c. contactor |
| CN2605701Y (en) * | 2003-01-25 | 2004-03-03 | 陈兆力 | Alternating-current star-delta time-delay conversion contactor |
| CN202977312U (en) * | 2012-12-18 | 2013-06-05 | 天水黄河电气有限公司 | Novel direct-current contactor |
-
2013
- 2013-10-21 CN CN201310494323.6A patent/CN103560037B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02148524A (en) * | 1988-11-29 | 1990-06-07 | Mitsubishi Electric Corp | Breaker for use in vehicle |
| CN2133045Y (en) * | 1992-09-09 | 1993-05-12 | 黄科云 | 10 kv air high voltage a.c. contactor |
| CN2605701Y (en) * | 2003-01-25 | 2004-03-03 | 陈兆力 | Alternating-current star-delta time-delay conversion contactor |
| CN202977312U (en) * | 2012-12-18 | 2013-06-05 | 天水黄河电气有限公司 | Novel direct-current contactor |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104157490A (en) * | 2014-08-27 | 2014-11-19 | 武汉长海电气科技开发有限公司 | High-voltage direct current contactor contact system |
| CN104576121A (en) * | 2015-01-21 | 2015-04-29 | 北京双杰电气股份有限公司 | Magnetic blow-out arc extinguishing switch |
| CN105762000A (en) * | 2016-04-06 | 2016-07-13 | 中国船舶重工集团公司第七〇二研究所 | DC load isolation switch |
| CN106783351A (en) * | 2017-02-24 | 2017-05-31 | 山东泰开隔离开关有限公司 | A kind of single armed is folded for insertion into formula ± 1100kV extra-high voltage direct-current disconnecting switch |
| CN106783351B (en) * | 2017-02-24 | 2019-03-05 | 国家电网公司 | A kind of single armed is folded for insertion into formula ± 1100kV extra-high voltage direct-current disconnecting switch |
| CN109148177A (en) * | 2018-09-30 | 2019-01-04 | 浙江中乾电气有限公司 | Transhipment formula electromagnetic switch mechanism |
| CN109166747A (en) * | 2018-10-16 | 2019-01-08 | 武汉长海电气科技开发有限公司 | A kind of DC load switch |
| CN109166747B (en) * | 2018-10-16 | 2024-03-08 | 武汉长海电气科技开发有限公司 | DC load switch |
| CN114203492A (en) * | 2021-12-23 | 2022-03-18 | 江苏其厚智能电气设备有限公司 | Plastic shell type circuit breaker contact system with arc contacts |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103560037B (en) | 2016-04-27 |
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