CN102522252A - Fracture structure of non-SF6 gas-insulated metal-enclosed isolating switch - Google Patents
Fracture structure of non-SF6 gas-insulated metal-enclosed isolating switch Download PDFInfo
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- CN102522252A CN102522252A CN2011104498309A CN201110449830A CN102522252A CN 102522252 A CN102522252 A CN 102522252A CN 2011104498309 A CN2011104498309 A CN 2011104498309A CN 201110449830 A CN201110449830 A CN 201110449830A CN 102522252 A CN102522252 A CN 102522252A
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- gas
- head seat
- contact head
- movable contact
- isolating switch
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention discloses a fracture structure of a non-SF6 gas-insulated metal-enclosed isolating switch, and the fracture structure comprises a movable side shielding cover, a static side shielding cover, a movable contact head seat and a static contact head seat. The movable side shielding cover is mounted on the movable contact head seat; the static side shielding cover is mounted on the static contact head seat; and annular magnets are arranged on at least one side between the movable side shielding cover and the movable contact head seat and between the static side shielding cover and the static contact head seat. The ablation action of an electric arc can be obviously weakened due to the existence of a longitudinal magnetic field; therefore, in a low-speed switching condition, although the ablation time of the electric arc is increased, the requirement of switching an electric current also can be met by reducing the ablation strength of the electric arc; by using the fracture structure, the annular magnets are additionally arranged on a fracture of original SF6 gas-insulated switch equipment, so as to achieve a magnetic blow-out action when the electric current is switched; the ablation action of the electric arc on the contact heads is reduced; the annular magnets are arranged between the shielding covers and the movable contact head seat and between the shielding covers and the static contact head seat; and the phenomenon that the loss of excitation of the magnets is easy to generate in impact and high temperature conditions is effectively overcome.
Description
Technical field
The present invention relates to high voltage electrical apparatus technical field, particularly a kind of non-SF
6The fracture texture of gas-insulated metal-enclosed isolating switch.
Background technology
Non-SF
6Cubicle Gas-Insulated Switchgear since the gas arc extinguishing that adopts and insulating capacity a little less than, in order to satisfy the double-bus transformer station wire laying mode of extensive use, need to develop non-SF with folding bus switching current ability
6Air insulated isolation switch.
Because non-SF
6The arc extinguishing of gas and insulating capacity a little less than, usually need to adopt the high speed folding could realize the folding function of bus switching current, isolating switch cost at a high speed is high, and Mechanical Reliability is low, is starved of to develop a kind of and at SF for this reason
6The similar reliable isolating switch of low speed in the gas.
Summary of the invention
The object of the present invention is to provide a kind of non-SF
6The fracture texture of gas-insulated metal-enclosed isolating switch is to solve the problems of the technologies described above.
To achieve these goals, the present invention adopts following technical scheme:
A kind of non-SF
6The fracture texture of gas-insulated metal-enclosed isolating switch comprises moving side radome, quiet side radome, movable contact headstock and stationary contact headstock; Moving side radome is installed on the movable contact headstock, and quiet side radome is installed on the stationary contact headstock; At least one side is provided with annular magnet between moving side radome and the movable contact headstock and between quiet side radome and the stationary contact headstock.
The present invention further improves and is: be provided with the hole that supplies moving contact to pass in the movable contact headstock, be provided with annular fingertip in this hole; Moving contact is installed in this hole and through annular fingertip and is electrically connected with the movable contact headstock.
The present invention further improves and is: the end of moving contact is provided with arcing contact.
The present invention further improves and is: be fixedly connected with the striking contact on the stationary contact headstock.
The present invention further improves and is: between moving side radome and the movable contact headstock and be equipped with annular magnet between quiet side radome and the stationary contact headstock.
The present invention further improves and is: said annular magnet forms longitudinal magnetic field in the port.
The present invention further improves and is: moving side radome, quiet side radome, movable contact headstock and stationary contact headstock are installed in the closed shell, are filled with the non-SF of compression in this housing
6Gas.
With respect to prior art; The present invention has the following advantages: the existence in vertical magnetic field can significantly weaken the ablation effect of electric arc; Therefore under the low speed folding condition,, can satisfy the requirement of folding electric current equally through reduction arc erosion intensity though the arc erosion time has increased; The present invention is at original SF
6On the gas-insulated switchgear fracture addition annular magnet, thereby realized the magnetic blow-out effect when the folding electric current, reduced the ablation effect of electric arc to contact.The present invention places annular magnet between radome and the movable contact headstock, and between radome and the stationary contact headstock, has effectively overcome the phenomenon of magnet easy loss of excitation under bump and hot conditions.Therefore the present invention has the characteristics of " low cost, high efficiency, highly reliable ".
Description of drawings
Fig. 1 is a kind of typical fracture sketch map of the present invention;
Wherein: 1. radome 2. annular magnets 3. moving contacts 4. arcing contacts 5. movable contact headstocks 6. striking contacts 7. stationary contact headstocks 8. annular fingertips.
Embodiment
Specify technical scheme of the present invention below in conjunction with accompanying drawing.
With reference to shown in Figure 1, be a kind of typical fracture of the present invention, mainly comprise: radome 1, annular magnet 2, moving contact 3, arcing contact 4, movable contact headstock 5, striking contact 6, stationary contact headstock 7, annular fingertip 8.
Annular magnet 2 at first is fixed on movable contact headstock 5 and the stationary contact headstock 7, and then loads onto radome 1 respectively.
Striking contact 6 passes through screw threads for fastening on stationary contact headstock 7.
This fracture texture is the same with common fracture in the application process of isolating switch, and quiet side and moving side just can guarantee that moving contact 3 moves after proofreading and correct through centering between movable contact headstock 5 and stationary contact headstock 7, realize the disconnection and the connection of fracture two lateral circuits.
The existence in vertical magnetic field can significantly weaken the ablation effect of electric arc, so under the low speed folding condition, though the arc erosion time has increased, can satisfy the requirement of folding electric current equally through reduction arc erosion intensity; The radome of port of the present invention both sides can play optimizes the effect of fracture Electric Field Distribution; Annular magnet can provide vertical magnetic field between fracture; The arcing contact of arc ablation resistance is equipped with in the moving contact end.
Air self arc extinguishing ability a little less than; Isolating switch produces electric arc between fracture; The effect of longitudinal magnetic field makes electric arc not form spot, avoids in the dot set, promptly increases the ablated area of electric arc; Not forming arc spot is in order to reduce the ablation degree of contact, to play the effect that prolongs electrical endurance equally.
The present invention is at original SF
6On the gas-insulated switchgear fracture addition annular magnet, thereby realized the magnetic blow-out effect when the folding electric current, reduced the ablation effect of electric arc to contact.The present invention places annular magnet between radome and the movable contact headstock, and between radome and the stationary contact headstock, has effectively overcome the phenomenon of magnet easy loss of excitation under bump and hot conditions.Therefore the present invention has the characteristics of " low cost, high efficiency, highly reliable ".
Claims (7)
1. non-SF
6The fracture texture of gas-insulated metal-enclosed isolating switch is characterized in that, comprises moving side radome, quiet side radome, movable contact headstock (5) and stationary contact headstock (7); Moving side radome is installed on the movable contact headstock (5), and quiet side radome is installed on the stationary contact headstock (7); At least one side is provided with annular magnet (2) between moving side radome and the movable contact headstock (5) and between quiet side radome and the stationary contact headstock (7).
2. a kind of non-SF according to claim 1
6The fracture texture of gas-insulated metal-enclosed isolating switch is characterized in that, is provided with the hole that supplies moving contact (3) to pass in the movable contact headstock (5), is provided with annular fingertip (8) in this hole; Moving contact (3) is installed in this hole and through annular fingertip (8) and is electrically connected with movable contact headstock (5).
3. a kind of non-SF according to claim 2
6The fracture texture of gas-insulated metal-enclosed isolating switch is characterized in that, the end of moving contact (3) is provided with arcing contact (4).
4. a kind of non-SF according to claim 1
6The fracture texture of gas-insulated metal-enclosed isolating switch is characterized in that, is fixedly connected with striking contact (6) on the stationary contact headstock (7).
5. a kind of non-SF according to claim 1
6The fracture texture of gas-insulated metal-enclosed isolating switch is characterized in that, between moving side radome and the movable contact headstock (5) and be equipped with annular magnet (2) between quiet side radome and the stationary contact headstock (7).
6. a kind of non-SF according to claim 1
6The fracture texture of gas-insulated metal-enclosed isolating switch is characterized in that, said annular magnet (2) forms longitudinal magnetic field in the port.
7. according to each described a kind of non-SF in the claim 1 to 6
6The fracture texture of gas-insulated metal-enclosed isolating switch is characterized in that, moving side radome, quiet side radome, movable contact headstock (5) and stationary contact headstock (7) are installed in the closed shell, is filled with the non-SF of compression in this housing
6Gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104498309A CN102522252A (en) | 2011-12-19 | 2011-12-19 | Fracture structure of non-SF6 gas-insulated metal-enclosed isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104498309A CN102522252A (en) | 2011-12-19 | 2011-12-19 | Fracture structure of non-SF6 gas-insulated metal-enclosed isolating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102522252A true CN102522252A (en) | 2012-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104498309A Pending CN102522252A (en) | 2011-12-19 | 2011-12-19 | Fracture structure of non-SF6 gas-insulated metal-enclosed isolating switch |
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| CN (1) | CN102522252A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882320A (en) * | 2015-06-15 | 2015-09-02 | 浙江紫光电器有限公司 | Load switch |
| CN105122411A (en) * | 2013-04-22 | 2015-12-02 | 株式会社日立制作所 | Switching device |
| CN107045960A (en) * | 2017-02-08 | 2017-08-15 | 河南平高电气股份有限公司 | Touch base component, earthed switch, isolation ground connection stacked switch and switchgear |
| CN107068428A (en) * | 2017-06-01 | 2017-08-18 | 安徽吉乃尔电器科技有限公司 | A kind of Novel electrical switch seal |
| CN109411289A (en) * | 2018-09-12 | 2019-03-01 | 平高集团有限公司 | Switch fracture, arc-chutes, pole and breaker |
| CN112349521A (en) * | 2019-08-09 | 2021-02-09 | 河南平芝高压开关有限公司 | Circuit breaker and resistor fracture contact thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101331572A (en) * | 2005-12-13 | 2008-12-24 | 西门子公司 | Load interrupter for an encapsulated switchgear and permanent magnet system for a load interrupter |
| CN101978452A (en) * | 2008-03-18 | 2011-02-16 | 西门子公司 | Permanent magnet quenching device for load interrupters |
| WO2011104902A1 (en) * | 2010-02-26 | 2011-09-01 | 三菱電機株式会社 | Electric current switching apparatus |
-
2011
- 2011-12-19 CN CN2011104498309A patent/CN102522252A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101331572A (en) * | 2005-12-13 | 2008-12-24 | 西门子公司 | Load interrupter for an encapsulated switchgear and permanent magnet system for a load interrupter |
| CN101978452A (en) * | 2008-03-18 | 2011-02-16 | 西门子公司 | Permanent magnet quenching device for load interrupters |
| WO2011104902A1 (en) * | 2010-02-26 | 2011-09-01 | 三菱電機株式会社 | Electric current switching apparatus |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105122411A (en) * | 2013-04-22 | 2015-12-02 | 株式会社日立制作所 | Switching device |
| CN104882320A (en) * | 2015-06-15 | 2015-09-02 | 浙江紫光电器有限公司 | Load switch |
| CN104882320B (en) * | 2015-06-15 | 2017-09-26 | 浙江紫光电器有限公司 | A kind of on-load switch |
| CN107045960A (en) * | 2017-02-08 | 2017-08-15 | 河南平高电气股份有限公司 | Touch base component, earthed switch, isolation ground connection stacked switch and switchgear |
| CN107045960B (en) * | 2017-02-08 | 2019-05-14 | 河南平高电气股份有限公司 | Touch base component, earthing switch, isolation ground connection stacked switch and switchgear |
| CN107068428A (en) * | 2017-06-01 | 2017-08-18 | 安徽吉乃尔电器科技有限公司 | A kind of Novel electrical switch seal |
| CN109411289A (en) * | 2018-09-12 | 2019-03-01 | 平高集团有限公司 | Switch fracture, arc-chutes, pole and breaker |
| CN109411289B (en) * | 2018-09-12 | 2020-05-08 | 平高集团有限公司 | Switch fracture, arc extinguish chamber, solid-sealed polar pole and circuit breaker |
| CN112349521A (en) * | 2019-08-09 | 2021-02-09 | 河南平芝高压开关有限公司 | Circuit breaker and resistor fracture contact thereof |
| CN112349521B (en) * | 2019-08-09 | 2024-08-30 | 河南平芝高压开关有限公司 | Circuit breaker and resistance break contact thereof |
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Application publication date: 20120627 |