CN203966951U - 800kV gas-insulated metal enclosed switchgear heavy current breaker - Google Patents
800kV gas-insulated metal enclosed switchgear heavy current breaker Download PDFInfo
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- CN203966951U CN203966951U CN201420361893.8U CN201420361893U CN203966951U CN 203966951 U CN203966951 U CN 203966951U CN 201420361893 U CN201420361893 U CN 201420361893U CN 203966951 U CN203966951 U CN 203966951U
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- radome
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Abstract
A kind of 800kV gas-insulated metal enclosed switchgear heavy current breaker, it comprises metal shell, two main fractures, resistance fracture, insulating supporting, insulated tension pole, fracture is all pressed shunt capacitance, switching-on resistance, radome, pressure relief device, it is characterized in that circuit breaker comprises two main fractures and a resistance fracture, main fracture two ends are provided with fracture and all press shunt capacitance, switching-on resistance and the parallel connection of resistance fracture, main fracture and the series connection of resistance fracture, be provided with the radome that can improve insulation against ground and fracture insulation property at the two ends of main fracture and resistance fracture, be provided with the insulating supporting of the weight that supports arc control device at the end face of housing, insulated tension pole is connected with radome, be provided with in the lower end of metal shell and prevent in fault current situation SF in metal shell
6the pressure relief device that gas pressure is too high, the utlity model has through-current capability strong, cut-off that capacity is large, the feature such as compact conformation, insulation level are high, dependable performance, be mainly used in the electric power system of 750kV electric pressure.
Description
Technical field
The utility model relates to ultra-high voltage high-current circuit breaker technical field, particularly a kind of 800kV gas-insulated metal enclosed switchgear heavy current breaker.
Background technology
Circuit breaker is point combination switch of controlling electric loop, if if the title sulfur hexafluoride breaker of the title air circuit taking air as arc-extinguishing medium taking SF6 gas as arc-extinguishing medium, circuit breaker is generally selected with rated current (load), as the master switch of electric loop.Use the Main Function of circuit breaker: 1. switch on and off under normal circumstances zero load and load current in high-tension circuit, 2. in the time that breaking down, system can match with protective device and automatics, disengagement failure electric current rapidly, Accident prevention expands, thereby guarantee system safety operation, high-voltage alternating sulfur hexafluoride breaker is in electric power system, to be used for the visual plant of the normal working line of switching or faulty line, along with the continuous expansion of NORTHWEST CHINA area 750kV trunk electricity power engineering construction scale and networking scope, and the lasting construction of extra-high voltage direct-current transmission project, electric power system has proposed large electric current to circuit breaker, jumbo requirement, the circuit breaker of conventional 5000A through-current capability cannot meet the requirement of high current power system very soon.
Summary of the invention
The purpose of this utility model is to provide that a kind of through-current capability is strong, to cut-off capacity large, is applied to the 800kV gas-insulated metal enclosed switchgear heavy current breaker in the electric power system of 750kV electric pressure.
The utility model is to realize like this, it comprises metal shell, two main fractures, resistance fracture, insulating supporting, insulated tension pole, fracture is all pressed shunt capacitance, switching-on resistance, radome, pressure relief device, it is characterized in that circuit breaker comprises two main fractures and a resistance fracture, main fracture two ends are provided with fracture and all press shunt capacitance, switching-on resistance and the parallel connection of resistance fracture, main fracture and the series connection of resistance fracture, be provided with the radome that can improve insulation against ground and fracture insulation property at the two ends of main fracture and resistance fracture, be provided with the insulating supporting of the weight that supports arc control device at the end face of housing, insulated tension pole is connected with radome, be provided with in the lower end of metal shell and prevent in fault current situation SF in metal shell
6the pressure relief device that gas pressure is too high.
The utlity model has through-current capability strong, cut-off that capacity is large, the feature such as compact conformation, insulation level are high, dependable performance, be mainly used in the electric power system of 750kV electric pressure.
Brief description of the drawings
Below in conjunction with accompanying drawing, the utility model is further described;
Fig. 1 is the structural representation of 800kV gas-insulated metal enclosed switchgear heavy current breaker.
Embodiment
This 800kV gas-insulated metal enclosed switchgear heavy current breaker comprises metal shell 1, two main fractures 2, resistance fracture 3, insulating supporting 4, insulated tension pole 5, fracture is all pressed shunt capacitance 6, switching-on resistance 7, radome 8 and pressure relief device 9, circuit breaker comprises two main fractures 2 and a resistance fracture 3, main fracture 2 two ends are provided with fracture and all press shunt capacitance 6, switching-on resistance 7 and 3 parallel connections of resistance fracture, main fracture 2 and resistance fracture 3 are connected, be provided with the radome 8 that can improve insulation against ground and fracture insulation property at the two ends of main fracture 2 and resistance fracture 3, be provided with the insulating supporting 4 of the weight that supports arc control device at the end face of housing 1, insulated tension pole 5 is connected with radome 8, be provided with in the lower end of metal shell 1 and prevent in fault current situation SF in metal shell
6the pressure relief device 9 that gas pressure is too high.It can meet the through-flow needs of large electric current of rated current 6300A.Be provided with suitable radome.For supporting the weight of arc control device, housing two ends are provided with suitable insulating supporting.The SF of insulation and arc-extinguishing medium adopting suitable pressure
6gas.For preventing its SF in metal shell in fault current situation
6gas pressure is too high, is provided with suitable pressure relief device.Metal shell can adopt aluminium sheet welding and cast aluminium manufacture.
Claims (1)
1. a 800kV gas-insulated metal enclosed switchgear heavy current breaker, it comprises metal shell, two main fractures, resistance fracture, insulating supporting, insulated tension pole, fracture is all pressed shunt capacitance, switching-on resistance, radome, pressure relief device, it is characterized in that, circuit breaker comprises two main fractures and a resistance fracture, main fracture two ends are provided with fracture and all press shunt capacitance, switching-on resistance and the parallel connection of resistance fracture, main fracture and the series connection of resistance fracture, be provided with the radome that can improve insulation against ground and fracture insulation property at the two ends of main fracture and resistance fracture, be provided with the insulating supporting of the weight that supports arc control device at the end face of housing, insulated tension pole is connected with radome, be provided with in the lower end of metal shell and prevent in fault current situation SF in metal shell
6the pressure relief device that gas pressure is too high.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420361893.8U CN203966951U (en) | 2014-07-02 | 2014-07-02 | 800kV gas-insulated metal enclosed switchgear heavy current breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420361893.8U CN203966951U (en) | 2014-07-02 | 2014-07-02 | 800kV gas-insulated metal enclosed switchgear heavy current breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203966951U true CN203966951U (en) | 2014-11-26 |
Family
ID=51927503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420361893.8U Active CN203966951U (en) | 2014-07-02 | 2014-07-02 | 800kV gas-insulated metal enclosed switchgear heavy current breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203966951U (en) |
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2014
- 2014-07-02 CN CN201420361893.8U patent/CN203966951U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 115009 Liaoning city of Jinzhou province Yingkou economic and Technological Development Zone Xiongyue town Patentee after: New northeast electric group high voltage switch equipment Co., Ltd. Address before: 110027 No. 14, five, road 5, Shenyang economic and Technological Development Zone, Shenyang, Liaoning Patentee before: High-pressure Switch Co., Ltd., NHVS Group |
|
| CP03 | Change of name, title or address |