CN2708485Y - Outdoor high-voltage self-energy sulfur hexafluoride circuit breaker - Google Patents
Outdoor high-voltage self-energy sulfur hexafluoride circuit breaker Download PDFInfo
- Publication number
- CN2708485Y CN2708485Y CN 200420027316 CN200420027316U CN2708485Y CN 2708485 Y CN2708485 Y CN 2708485Y CN 200420027316 CN200420027316 CN 200420027316 CN 200420027316 U CN200420027316 U CN 200420027316U CN 2708485 Y CN2708485 Y CN 2708485Y
- Authority
- CN
- China
- Prior art keywords
- air cylinder
- sulfur hexafluoride
- contact terminal
- outdoor high
- voltage self
- 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
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Abstract
The utility model discloses an outdoor high-voltage self-energy sulfur hexafluoride circuit breaker. Live tank type arc-extinguishing chambers are separately arranged in three phases, and each arc-extinguishing chamber is provided with a ceramic bushing in which a static arc extinguishing contact terminal, a moving arc extinguishing contact terminal, a moving contact terminal seat and an insulating pull rod are provided. The moving arc extinguishing contact terminal is connected with an air cylinder, and the static arc extinguishing contact terminal is extended into a nozzle which is provided at the top part of the air cylinder. An expansion chamber which is filled with sulphur hexafluoride air is provided at the front part of the air cylinder, and the expansion chamber is communicated with the nozzle. An air piston is arranged in the air cylinder. By adopting the arc extinguishing principle, the outdoor high-voltage self-energy sulfur hexafluoride circuit breaker has the advantages of good performance in connecting and breaking, short arcing time, long electrical durability, small operation noise, safe use, and no danger in combustion and explosion, being applicable for densely inhabited areas.
Description
Technical field:
The utility model relates to a kind of power transmission and transformation switchgear.
Background technology:
Existing end road device is owing to reasons such as structures, and break performance is undesirable, and operation noise is big, the operation explosion hazard.
Summary of the invention:
It is a kind of rational in infrastructure that the purpose of this utility model is to provide, the outdoor high-voltage self extinguishing type sulfur hexafluoride breaker of break performance ideal, safety.
Technical solution of the present utility model is:
A kind of outdoor high-voltage self extinguishing type sulfur hexafluoride breaker, the discrete porcelain knob arc control device of three-phase are arranged, each arc control device has insulator, adorn quiet arcing contact, moving arcing contact, movable contact headstock, insulated tension pole in the insulator, its feature: moving arcing contact is connected with air cylinder, and the air cylinder end is provided with spout, and quiet arcing contact stretches in spout, the anterior expanding chamber that sulfur hexafluoride gas is housed that communicates with spout that is provided with of air cylinder is adorned displacer in the air cylinder.
Adorn adsorbent in the fixed contact.
The utility model adopts the self extinguishing type arc quenching principle, and break performance is good; Arcing time is short, and electric life is long, and operation noise is little, and is safe in utilization, does not have burning, explosion hazard, can be used for densely inhabited district.
Description of drawings:
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the configuration diagram of an embodiment of the utility model.
Fig. 2 is the configuration diagram of arc control device among Fig. 1.
Embodiment:
A kind of outdoor high-voltage self extinguishing type sulfur hexafluoride breaker, the discrete porcelain knob arc control device 1,2,3 of three-phase are arranged, each arc control device has insulator 4, dress fixed contact 13, quiet arcing contact 5, moving arcing contact 6, movable contact headstock 7, insulated tension pole 8 in the insulator 4, moving arcing contact 6 is connected with air cylinder 9, air cylinder 9 ends are provided with spout 10, quiet arcing contact 5 stretches in spout 10, the air cylinder 9 anterior expanding chambers that sulfur hexafluoride gas is housed 11 that communicate with spout 10 that are provided with, dress displacer 12 in the air cylinder 9, dress adsorbent 14 in the fixed contact 13.The insulated tension pole of the discrete porcelain knob arc control device 1,2,3 of three-phase adopts form same as the prior art to be connected with same operating mechanism.
The operation principle of the utility model arc control device is:
When cut-offfing short circuit current, electric arc heats the sulfur hexafluoride gas in the expanding chamber 11 in 6,5 burnings of dynamic and static arcing contact, elevate the temperature, gas pressure increases, and produces inside and outside differential pressure, meanwhile, air cylinder 9 downward rapid movements in the separating brake process, displacer is calmed the anger, when quiet arcing contact 5 is pulled out spout 10, and warmed-up gas and compressed air energy stack, powerful sulphur hexafluoride air-flow is from spout 10 ejection, during current over-zero by strong gas blowout with extinguish arcs.When cut-offfing small inductor, capacitance current or rated current, institute's drop-out current is less, and arc energy is also less, is not enough to heat expanding chamber 11 inside and outside differential pressures, and this moment, air cylinder 9 provided enough energy to blow out less electric arc.
Claims (2)
1, a kind of outdoor high-voltage self extinguishing type sulfur hexafluoride breaker, the discrete porcelain knob arc control device of three-phase are arranged, each arc control device has insulator, adorn quiet arcing contact, moving arcing contact, movable contact headstock, insulated tension pole in the insulator, it is characterized in that: moving arcing contact is connected with air cylinder, and the air cylinder end is provided with spout, and quiet arcing contact stretches in spout, the anterior expanding chamber that sulfur hexafluoride gas is housed that communicates with spout that is provided with of air cylinder is adorned displacer in the air cylinder.
2, outdoor high-voltage self extinguishing type sulfur hexafluoride breaker according to claim 1 is characterized in that: adorn adsorbent in the fixed contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420027316 CN2708485Y (en) | 2004-05-20 | 2004-05-20 | Outdoor high-voltage self-energy sulfur hexafluoride circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420027316 CN2708485Y (en) | 2004-05-20 | 2004-05-20 | Outdoor high-voltage self-energy sulfur hexafluoride circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2708485Y true CN2708485Y (en) | 2005-07-06 |
Family
ID=34849561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420027316 Expired - Lifetime CN2708485Y (en) | 2004-05-20 | 2004-05-20 | Outdoor high-voltage self-energy sulfur hexafluoride circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2708485Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112002605A (en) * | 2020-08-25 | 2020-11-27 | 西安西电开关电气有限公司 | Switch device and arc extinguish chamber thereof |
-
2004
- 2004-05-20 CN CN 200420027316 patent/CN2708485Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112002605A (en) * | 2020-08-25 | 2020-11-27 | 西安西电开关电气有限公司 | Switch device and arc extinguish chamber thereof |
| WO2022041829A1 (en) * | 2020-08-25 | 2022-03-03 | 西安西电开关电气有限公司 | Switching device and arc extinguishing chamber thereof |
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140520 Granted publication date: 20050706 |