CN2257400Y - Sulfur hexafluoride gas circuit breaker - Google Patents
Sulfur hexafluoride gas circuit breaker Download PDFInfo
- Publication number
- CN2257400Y CN2257400Y CN 95228485 CN95228485U CN2257400Y CN 2257400 Y CN2257400 Y CN 2257400Y CN 95228485 CN95228485 CN 95228485 CN 95228485 U CN95228485 U CN 95228485U CN 2257400 Y CN2257400 Y CN 2257400Y
- Authority
- CN
- China
- Prior art keywords
- contact
- sulfur hexafluoride
- hexafluoride gas
- circuit breaker
- control device
- 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 - Fee Related
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model relates to a sulfur hexafluoride gas circuit breaker, which is composed of a main body and an operating mechanism, wherein, the main body is composed of a casing, a main shaft, a porcelain jacket, a fixed contact rod, a conductive rod, a shifting fork, a movable contact, adsorbing agent and a current mutual inductor; the main body is filled with sulfur hexafluoride gas and connected with the operating mechanism through the main shaft; an arc-extinguishing chamber of the fixed contact rod is provided with round copper electrodes and a coil refractory metal ring; the movable contact, a contact finger and a movable contact piece are arranged on the conductive rod (1). The sulfur hexafluoride gas circuit breaker is mainly used for 10KV branch circuits and 10KV side outlet broken circuits or main switches of medium and small sized substations and is also suitable for 10KV high-tension electrical equipment, having the advantages of simple structure, excellent arc extinguishing performance and insulating performance, strong electrical supply reliability, and more functions. The sulfur hexafluoride gas circuit breaker is popular for users.
Description
The utility model belongs to a kind of sulfur hexafluoride gas circuit breaker.
At present, circuit breaker has of all kinds, as SF6 circuit breaker on the patent 91221208.X 12.5KA post, and patent 85106131 gaseous cut-outs, patent 87108323 gas-break switchs, insulation property are poor, and arc extinction performance is poor.Structure is complicated, and power supply reliability is poor, and is seldom popular with users.
The purpose of this utility model is to provide a kind of insulation and arc extinction performance excellence, and is simple in structure, the SF6 gas-break switch that power supply reliability can be strong.
The utility model is made up of body and operating mechanism.Breaker body (16) is by housing, main shaft (21), insulator (5,6), stationary contact bar (10), conducting rod (7), shift fork, moving contact (8), adsorbent (23), current transformer (22) is formed, 6 insulators stretch out outside the body (16), body is full of sulfur hexafluoride gas in (16), body (16) and operating mechanism (17) connect by main shaft (21), main shaft (21) is hinged by shift fork and moving contact (8), moving contact (18) is contained on the conducting rod (7), current transformer (22) is housed on the conducting rod (7), arc control device (11) and moving contact (8) can deciliter, adsorbent (18) is equipped with in body (16) below; Pointer (18), handle (19), separating brake draw ring and combined floodgate draw ring (20) are housed on the operating mechanism (17); Insulator (5) is housed on the described stationary contact bar (10), static contact seat (4), fingertip spring (3), fixed contact (14), copper tungsten fingertip (2), arc control device (11), arc control device (11) are by insulation framework (12), coil (13), circle copper electrode (1) is formed, insulator (5) and static contact seat (4) are fitted together, fixed contact (14) is housed on the static contact seat (4), static contact finger (2) is equipped with in fixed contact (14) front portion, fingertip spring (3) is housed on the fingertip (2), arc control device (11) and static contact seat (4) thread connection, insulation framework (12) is housed in the arc control device (11), between insulation framework (12) and arc control device (11) shell coil (13) is housed, round copper electrode (1) is equipped with in arc control device (11) front portion, and circle copper electrode (1) has the refractory metal ring near fingertip (2) part; Be with moving contact (8) on the described conducting rod (1), movable contact refers to (15), insulator (6), movable contact spring (9); Moving contact (8) afterbody is equipped with movable contact and refers to (15), between conducting rod (7) and the moving contact (8) movable contact spring (9) is housed, and conducting rod (7) afterbody is contained in the insulator (6).
The utility model is simple in structure, can utilize the underframe of on-pole switch to carry out the scene replacing, and three-phase all is equipped with current transformer, can guarantee effectively and promptly to cut-off high-tension current, quicken insulation recovery speed, have excellent arc extinction performance, power supply reliability is strong, and is multi-functional, is subject to the user and welcomes.
Description of drawings:
Fig. 1 is the utility model structural representation;
Fig. 2 looks cutaway view for the utility model left side;
Fig. 3 is the utility model stationary contact bar structural representation;
Fig. 4 is the utility model conducting rod structural representation;
As shown in Figure 1 and Figure 2, instruct when operating mechanism (17) transmits separating brake, when axle (21) fast rotational one angle, moving contact (8) promptly separates breaker open operation with stationary contact bar (10); When operating mechanism (17) transmission reclosing command, moving contact (8) promptly contacts breaker closing with the stationary contact bar; As shown in Figure 3, the static contact finger (2) on the stationary contact bar (10) is a copper tungsten fingertip, and the refractory metal ring in the circle copper electrode (1) is also made by copper-tungsten, and coil (13) one ends connect with static contact seat (4), and the other end connects with circle copper electrode (1).Cut-off in the circuitry processes at circuit breaker, dynamic/static contact (8,14) just divided moment just to produce electric arc, the very fast arcing ring of transferring to arc control device (1) by static contact finger (2) of this electric arc, in ring, because field coil is subjected to, produce the magnetic field coaxial with contact system, electric arc part perpendicular to magnetic field just produces electromagnetic motion, and high speed rotating gets up, and the ionized gas wake flow is thrown in the back, and in SF6 gas, elongate, because the electric arc of rotation is the fresh SF6 gas of contact constantly, discharges heat energy, is cooled very soon; And the very quick high-quality SF6 gas that is combined into of ionized gas guarantees effectively and promptly to cut-off high-tension current, when current over-zero, and just extinguish arcs; Add that magnetic flux phase place and arc current have 30 °～60 ° phase differences,, thereby quicken insulation recovery speed, help extinguish arcs so near current over-zero, residual charge is still kept actuating force; As shown in Figure 4, the movable contact of different electric pole (1) refers to that (15) are copper tungsten fingertip, and moving contact (8) rear section is made by red copper, between moving contact (8) and conducting rod (7) movable contact spring (9) is housed, be the watchband shape, what demonstrate,proves moving contact can go up slip at conducting rod (7), can reduce resistance again.The utility model can be used for the 10KV branched line, and medium and small sized substation 10KV side outlet circuit breaker or main switch also are applicable to the 10KV high-voltage electrical equipment, during use, after circuit breaker firmly is installed in support, connect one or secondary line after close branch operation debugging, install and get final product.Installation process does not allow the stressed jackknifing of insulator to destroy sealing, causes gas leakage.
Claims (3)
1, a kind of sulfur hexafluoride gas circuit breaker, form by body and operating mechanism, it is characterized in that: body (16) is by housing, main shaft (21), insulator (5,6), stationary contact bar (10), conducting rod (7), shift fork, moving contact (8), adsorbent (23), current transformer (22) is formed, 6 insulators stretch out outside the body (16), body is full of sulfur hexafluoride gas in (16), body (16) and operating mechanism (17) connect by main shaft (21), main shaft (21) is hinged by shift fork and moving contact (8), moving contact (8) is contained on the conducting rod (7), conducting rod (7) is gone up dress current transformer (22), arc control device (11) and moving contact (8) can deciliter, adsorbent (18) is equipped with in body (16) below;
2, according to the described sulfur hexafluoride gas circuit breaker of claim 1, it is characterized in that: described stationary contact bar is by insulator (5), static contact seat (4), fingertip spring (3), fixed contact (14), copper tungsten fingertip (2), arc control device (11) are formed, arc control device (11) are by insulation framework (12), coil (13), circle copper electrode (11) is formed, insulator (5) and static contact seat (4) are fitted together, fixed contact (14) is housed on the static contact seat (4), static contact finger (2) is equipped with in fixed contact (14) front portion, fingertip spring (3) is housed on the fingertip (2), arc control device (11) and static contact seat (4) thread connection, insulation framework (12) is housed in the arc control device (11), between insulation framework (12) and arc control device (11) shell coil (13) is housed, round copper electrode (1) is equipped with in arc control device (11) front portion, and circle copper electrode (1) has the refractory metal ring near fingertip (2) part;
3, according to the described sulfur hexafluoride gas circuit breaker of claim 1, it is characterized in that: be with moving contact (8) on the described conducting rod, movable contact refers to (15), insulator (6), movable contact spring (9); Moving contact (8) afterbody is equipped with movable contact and refers to (15), between conducting rod (7) and the moving contact (8) movable contact spring (9) is housed, and conducting rod (7) afterbody is contained in the insulator (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95228485 CN2257400Y (en) | 1995-12-05 | 1995-12-05 | Sulfur hexafluoride gas circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95228485 CN2257400Y (en) | 1995-12-05 | 1995-12-05 | Sulfur hexafluoride gas circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2257400Y true CN2257400Y (en) | 1997-07-02 |
Family
ID=33874024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95228485 Expired - Fee Related CN2257400Y (en) | 1995-12-05 | 1995-12-05 | Sulfur hexafluoride gas circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2257400Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109494113A (en) * | 2018-11-26 | 2019-03-19 | 湖北网安科技有限公司 | A kind of hermetically sealed breaker of sulfur hexafluoride gas-insulating |
| CN113539615A (en) * | 2021-07-19 | 2021-10-22 | 浙江日新电气有限公司 | Transformer with neutral point protection device and adsorbent filling method thereof |
-
1995
- 1995-12-05 CN CN 95228485 patent/CN2257400Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109494113A (en) * | 2018-11-26 | 2019-03-19 | 湖北网安科技有限公司 | A kind of hermetically sealed breaker of sulfur hexafluoride gas-insulating |
| CN113539615A (en) * | 2021-07-19 | 2021-10-22 | 浙江日新电气有限公司 | Transformer with neutral point protection device and adsorbent filling method thereof |
| CN113539615B (en) * | 2021-07-19 | 2022-02-11 | 浙江日新电气有限公司 | Transformer with neutral point protection device and adsorbent filling method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |