CN203055765U - Three-station linear SF6 insulating load switch - Google Patents
Three-station linear SF6 insulating load switch Download PDFInfo
- Publication number
- CN203055765U CN203055765U CN 201220691665 CN201220691665U CN203055765U CN 203055765 U CN203055765 U CN 203055765U CN 201220691665 CN201220691665 CN 201220691665 CN 201220691665 U CN201220691665 U CN 201220691665U CN 203055765 U CN203055765 U CN 203055765U
- Authority
- CN
- China
- Prior art keywords
- contact
- moving
- piston cylinder
- switch
- moving contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility relates to a middle-voltage distribution switch, especially to a load switch with insulating medium of SF6; and aims at providing an SF6 insulating load switch which is long in electric service life. The three-station linear SF6 insulating load switch comprises explosion chambers, a spring-operated mechanism and a switch support, wherein the three independent explosion chambers are fixed on the switch support, and the spring-operated mechanism is linked with the three explosion chambers. Each explosion chamber is composed of a piston cylinder, and the piston cylinder is composed of a cylinder body, an upper cover of the piston cylinder, a static contact, a lower cover of the piston cylinder, a grounding end contact and a moving contact, wherein the static contact is position on the upper cover of the piston cylinder; and the moving contact is composed of a moving-contact arc blow-out port, a moving-contact piston cap, a moving-contact connecting rod and a moving-contact driving mechanism, the moving-contact connecting rod is mounted on the lower cover of the piston cylinder via a sealing member, the moving-contact connecting rod is slidably matched with the lower cover of the piston cylinder, and the moving-contact arc blow-out port is matched with the static contact. The three-station linear SF6 insulating load switch has the advantage that the explosion chambers employ piston cylinder structures, so that service life of the switch is greatly improved, i.e. electric life of the switch is as high as more than 1000 times.
Description
Technical field
The utility model relates generally to the medium-voltage distribution switch, and especially relating to SF6 is the on-load switch of dielectric.
Background technology
" vacuum circuit-breaker " because of its arc-extinguishing medium and arc extinguishing after the dielectric in contact gap all be that high vacuum is gained the name, its have volume little, in light weight, be applicable to the advantage that frequent operation, arc extinguishing need not overhaul.But vacuum circuit-breaker is not suitable for cutting off cable or capacitance current, and this is because the contact travel of vacuum interrupter is too short.Yet on-load switch is only this best executor who cut-offs demand, because the general stroke of on-load switch is long, and can be not breakdown.But the action meeting of frequent operation exerts an influence to the electric life of on-load switch.
In the distribution of existing electrical network, the arc control device of the on-load switch of the SF6 insulated switch of 12 ~ 40.5kV are extremely normally revolving.The INTERRUPTION LIFE of its rated current is generally not high, generally about 300 ~ 400 times.Yet certain areas or project have higher requirement for the electric life of on-load switch.
The utility model content
The purpose of this utility model provides the SF6 insulation load switch of a high electric life.
The utility model is to realize like this, a kind of three station orthoscopic SF6 insulation load switch, comprise 3, three of arc control device 1, spring operating mechanism 2 and switch brackets independently arc control device 1 be fixed on the switch bracket 3 spring operating mechanism 2 and three arc control device 1 interlocks; It is characterized in that: described arc control device 1 adopt piston-cylinder to constitute, and described piston-cylinder structure is made of cylinder block 10, piston cylinder loam cake 11, fixed contact 12, piston cylinder lower cover 13, earth terminal contact 14 and moving contact 15; Described fixed contact 12 is positioned on the piston cylinder loam cake 11; Described moving contact 15 is made of moving contact arc blow-out mouth 151, moving contact piston cap 152, moving contact connecting rod 153, moving contact driving mechanism 154; Described moving contact connecting rod 153 is installed on the piston cylinder lower cover 13 by seal member 156, and both slidably cooperate; Moving contact arc blow-out mouth 151 cooperates with fixed contact 12.
The utility model has the advantages that: described arc control device adopt the piston-cylinder structure, and improve its useful life greatly, and high electric life is above 1000 times.
Description of drawings
Fig. 1: be the utility model overall structure schematic diagram.
Fig. 2: be the utility model perspective view.
Fig. 3: be the schematic diagram of arc control device of the present utility model.
Fig. 4: be arc control device fundamental diagram of the present utility model.
Embodiment
It is the basis that three station orthoscopic SF6 insulation load switch of the present utility model are installed switch bracket 3 by the bottom, switch bracket 3 outsides are used for spring operating mechanism 2 that fitting operation uses in the utility model patent, spring operating mechanism 2 and switch bracket 3 are prior aries, and the utility model will not be described in detail.
Three independent arc control device 1 of the present utility model are fixed on the switch bracket 3, spring operating mechanism 2 and three arc control device 1 interlocks.Described arc control device 1 adopt piston-cylinder to constitute, and described piston-cylinder structure is made of cylinder block 10, piston cylinder loam cake 11, fixed contact 12, piston cylinder lower cover 13, earth terminal contact 14 and moving contact 15; Described fixed contact 12 is positioned on the piston cylinder loam cake 11; Described moving contact 15 is made of moving contact arc blow-out mouth 151, moving contact piston cap 152, moving contact connecting rod 153, moving contact driving mechanism 154; Described moving contact connecting rod 153 is installed on the piston cylinder lower cover 13 by seal member 156, and both slidably cooperate; Moving contact arc blow-out mouth 151 cooperates with fixed contact 12.
The operation principle of the utility model moving contact is: by the rotation spring operating mechanism, release energy to drive the insulation swing arm by it, carry out the quick swing at laterally zygomorphic 60 degree angles.Swing arm drives the moving contact 15 in the piston-cylinder in swing process, during combined floodgate: moving contact arc blow-out mouth 151 contacts with fixed contact 12; During separating brake: moving contact bottom end 155 contacts with the earth terminal contact.
The operation principle of the utility model arc blow-out is illustrated in fig. 5 shown below, and A is closing position.B is the beginning separating brake, i.e. air pressure stage, and in the moment of separating brake, the moving contact moving linearly, when moving contact arc blow-out mouth 151 separated with fixed contact 12, SF6 gas was compressed.C is for continuing separating brake, and SF6 gas enters the arcing district by moving contact arc blow-out mouth 151, and because pressure increases, SF6 gas constantly flows in addition, and compressed SF6 gas surrounds contact, thereby extinguish arcs is cut-off and finished.D is initial for closing a floodgate, and SF6 gas begins compressed.
Three-stations load switch by special use, detachable handle operates.The hexagon profile that this handle can agree with on the driving main shaft is come rotary manipulation.Prevent from rotating excessive by stop after operation puts in place.For example, during sub-switching operation, when the separating brake success, handle is limited, can't continue to rotate to earthing position.In the time of need carrying out the ground connection operation, handle must be withdrawed from, walk around stop, again handle is placed into rotary manipulation behind the operational grounding position.When the separating brake handle does not use, can be fixed on the hook on cabinet surface.
The direction of rotation of handle is consistent with the contact direction of rotation of three-stations load switch.After operation was finished, the red indicating label on mechanism's lock collar can show current on off state position.Corresponding three-stations load switch, each operation axis rotation 60 degree.Operating grip must rotate and surpass 60 and spend to guarantee that the spring mechanism in the cabinet finishes energy storage and discharge its energy.Switch contact can arrive the another location promptly from initial position during this period.So the rotation speed of operating grip is unimportant.Switch contact can keep initial condition always, till spring is threaded off.When manual operation, avoid operating excessively energetically.For safety, disk-locking mechanism provides red active state indication.If operation failure, switch contact be successfully action not, state indicates initiatively involution.
Claims (1)
1. station orthoscopic SF6 insulation load switch, comprise arc control device (1), spring operating mechanism (2) and switch bracket (3), three independently arc control device (1) be fixed on the switch bracket (3) interlock of spring operating mechanism (2) and three arc control device (1); It is characterized in that: described arc control device (1) adopt piston-cylinder to constitute, and described piston-cylinder structure is made of cylinder block (10), piston cylinder loam cake (11), fixed contact (12), piston cylinder lower cover (13), earth terminal contact (14) and moving contact (15); Described fixed contact (12) is positioned on the piston cylinder loam cake (11); Described moving contact (15) is made of moving contact arc blow-out mouth (151), moving contact piston cap (152), moving contact connecting rod (153), moving contact driving mechanism (154); Described moving contact connecting rod (153) is installed on the piston cylinder lower cover (13) by seal member (156), and both slidably cooperate; Moving contact arc blow-out mouth (151) cooperates with fixed contact (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220691665 CN203055765U (en) | 2012-12-14 | 2012-12-14 | Three-station linear SF6 insulating load switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220691665 CN203055765U (en) | 2012-12-14 | 2012-12-14 | Three-station linear SF6 insulating load switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203055765U true CN203055765U (en) | 2013-07-10 |
Family
ID=48738692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220691665 Expired - Lifetime CN203055765U (en) | 2012-12-14 | 2012-12-14 | Three-station linear SF6 insulating load switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203055765U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105244223A (en) * | 2015-10-09 | 2016-01-13 | 维龙（镇江）电工研究院有限公司 | Three-station direct drive load switch single-phase module |
-
2012
- 2012-12-14 CN CN 201220691665 patent/CN203055765U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105244223A (en) * | 2015-10-09 | 2016-01-13 | 维龙（镇江）电工研究院有限公司 | Three-station direct drive load switch single-phase module |
| CN105244223B (en) * | 2015-10-09 | 2018-12-04 | 维龙（镇江）电工研究院有限公司 | Three station direct acting type on-load switch single-phase modules |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105490199B (en) | Withdrawable air insulation ring main unit | |
| CN102436975B (en) | Bipolar DC contactor | |
| CN105185649A (en) | Indoor high-voltage load switch device and method for turning off load current | |
| CN203055765U (en) | Three-station linear SF6 insulating load switch | |
| CN104143451B (en) | High-speed earthing switch and earthing switch assembly unit with same | |
| CN204102789U (en) | Piston type isolating switch | |
| CN203339095U (en) | Vacuum circuit breaker and load switch | |
| CN204680573U (en) | A kind of Medium voltage switch or circuit breaker arc extinguishing structure | |
| CN103325639B (en) | Device containing vacuum circuit-breaker and on-load switch | |
| CN204390975U (en) | A kind of switching off/on device of high-tension vacuum switch equipment | |
| CN207367872U (en) | A kind of arc-extinguishing mechanism for on-load switch | |
| CN203674059U (en) | Pressure-operated load switch | |
| CN208781770U (en) | A kind of operating mechanism device of solid-state insulated switchgear | |
| CN109755065B (en) | Arc extinguishing mechanism for load switch | |
| CN202110995U (en) | Vacuum disconnector | |
| CN204102779U (en) | With the isolating switch of wedge shape seal | |
| CN202712031U (en) | Moving contact structure of 12kV three-position SF6 load switch | |
| CN204102778U (en) | The operating mechanism of switch with double-isolation | |
| CN204103338U (en) | There is the unit switch of two isolation features | |
| CN202957217U (en) | Disconnecting switch and vacuum circuit breaker composite system | |
| CN111540641A (en) | Load switch for clean and dry air insulated metal-enclosed switchgear | |
| CN201639186U (en) | Novel gas insulation metal closed isolating switch | |
| CN203325796U (en) | Compressed-air type arc extinguish chamber of circuit breaker | |
| CN205692761U (en) | One is pressed vacuum circuit breaker | |
| CN110223878A (en) | One kind not vacuumizing high-voltage circuitbreaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130710 |