CN202721096U - 72.5 kilovolt double frequency circuit breaker - Google Patents
72.5 kilovolt double frequency circuit breaker Download PDFInfo
- Publication number
- CN202721096U CN202721096U CN 201220385692 CN201220385692U CN202721096U CN 202721096 U CN202721096 U CN 202721096U CN 201220385692 CN201220385692 CN 201220385692 CN 201220385692 U CN201220385692 U CN 201220385692U CN 202721096 U CN202721096 U CN 202721096U
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- contact
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- moving
- arc
- air cylinder
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Abstract
The utility model relates to a 72.5 kilovolt double frequency circuit breaker. The circuit breaker comprises an arc extinguishing chamber and a pillar chamber. The arc extinguishing chamber mainly comprises an arc extinguishing chamber porcelain bushing, a static contact assembly, a moving contact assembly, a nozzle and an air cylinder. The static contact assembly and the air cylinder are installed on static and moving wiring seats on two ends of the arc extinguishing chamber porcelain bushing respectively. A static arc contact of a static arc contact assembly is installed on a center of the static wiring seat. A static main contact of the static arc contact assembly is installed on an outer side of the static wiring seat. A piston rod of the air cylinder is connected with a flange. The flange is connected with the moving contact assembly. An electric contact distance of the static arc contact and a moving arc contact along an axis direction of the arc extinguishing chamber is 30-3mm. A stroke of the moving contact assembly along the axis direction of the arc extinguishing chamber is 130-133mm. An opening breaking speed is increased. During the opening, an opening range is increased. An interrupting success rate is increased. An on-and-off ability during a short circuit state, capacitive current interruption, alternating-current motor and alternating-current electromagnetic device interruption are realized smoothly.
Description
Technical field
The utility model relates to a kind of circuit breaker, particularly a kind of 72: 5 kilovolts of double frequency circuit breakers.
Background technology
Circuit breaker is one of electric equipments of transformer station.When not only normally moving in system, it can cut off and connect high-tension line and various zero load and load current; and when system breaks down; interaction energy by protective relaying device excises various overload electric currents and short circuit current, the generation of Accident prevention scope and expansion automatically, rapidly, reliably.Sulfur hexafluoride breaker is to utilize sulfur hexafluoride gas to do the novel switched of dielectric and arc-extinguishing medium.Sulfur hexafluoride gas is colourless, tasteless, nontoxic, and non-flammable inert gas has very high dielectric strength and good arc extinction performance, and dielectric strength is considerably beyond traditional insulating gas.Therefore, it is used for electric power system, can improve reliability and the fail safe of electric power system.
Conventional circuit breaker is the single-frequency circuit breaker, namely is only applicable to the electrical network of 50Hz and 60Hz, uses to be subject to certain limitation.Circuit breaker manufacturing enterprise needs separately to produce the circuit breaker without frequency when producing, in order to adapt to American-European, Asian market, cause the product component kind to increase, and has increased manufacturing cost.
Summary of the invention
The technical problems to be solved in the utility model provides 72: 5 kilovolts of double frequency circuit breakers of a kind of 50Hz of being applicable to and 60Hz electrical network.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of 72: 5 kilovolts of double frequency circuit breakers, comprise arc control device and a column compartment, arc control device mainly comprise interrupting porcelain insulator, static contact component, moving contact component, nozzle and air cylinder, static contact component and air cylinder are installed in respectively the quiet of interrupting porcelain insulator two ends, on the moving junction block, the static arc contact of static arc contact assembly is installed in quiet junction block center, the quiet main contact of static arc contact assembly is installed in the outside of quiet junction block, the piston rod adpting flange of air cylinder, connect moving contact component on the flange, the moving main contact of moving contact component is installed in to cooperate on the periphery of flange and with flange and consists of the air cylinder piston, the moving arcing contact of moving contact component is installed in the center of flange, connects nozzle on the moving main contact; Column compartment mainly comprises column compartment insulator and an insulated tension pole, and insulated tension pole is connected with the piston rod of air cylinder, and its innovative point is: described static arc contact and moving arcing contact electrically contact apart from being 30～33mm the arc control device axis direction; Described moving contact component, nozzle are 130～133mm at the stroke of arc control device axis direction.
The utility model has the advantage of: static arc contact and moving arcing contact the arc control device axis direction electrically contact the distance be 30～33mm; Moving contact component reaches 130～133mm at the stroke of arc control device axis direction, improves the separating brake just-off speed, when the arc extinguishing desired point, open apart from increasing, increased dielectric strength, increased and cut-off success rate, realized smoothly that short circuit is closed to run the tests such as disconnected, that capacity current cut-offs jointly.
Description of drawings
Fig. 1 is 72: 5 kilovolts of double frequency breaker structure schematic diagrames of the utility model.
Embodiment
As shown in Figure 1, breaker body comprises arc control device and a column compartment.
Above-mentioned arc control device mainly comprise interrupting porcelain insulator 1, static contact component, moving contact component, nozzle 10 and air cylinder 6.Quiet junction block 2, moving junction block 3 are installed respectively in interrupting porcelain insulator 1 two ends, at interrupting porcelain insulator 1 interior static contact component and the moving contact component of arranging, static contact component is installed on the quiet junction block 2, it comprises static arc contact 4, quiet main contact 5, static arc contact 4 is installed in quiet junction block 2 inner centers, and quiet main contact 5 is installed on the quiet junction block 2 inner circumferencial directions.
Air cylinder 6 is installed on the moving junction block 3, piston rod 12 adpting flanges 7 of air cylinder 6, connect moving contact component on the flange 7, moving contact component comprises moving arcing contact 8 and moving main contact 9, moving arcing contact 8 is installed in flange 7 centers, moving main contact 9 is installed on the periphery of flange 7 and with flange 7 and cooperates formation air cylinder piston, and nozzle 10 is connected with moving main contact 9.
Prop up column compartment and mainly comprise column compartment insulator 11 and an insulated tension pole 13, column compartment insulator 11 an interior insulated tension pole 13 that arrange, insulated tension pole 13 1 ends are connected with piston rod 12, and the other end is connected with operating mechanism.
Static arc contact 4 is 30～33mm with moving arcing contact 8 in the distance h that electrically contacts of arc control device axis direction; Moving contact component, nozzle 10 are 130～133mm at the stroke H of arc control device axis direction.
Claims (1)
1. 72: 5 kilovolts of double frequency circuit breakers, comprise arc control device and a column compartment, arc control device mainly comprise interrupting porcelain insulator, static contact component, moving contact component, nozzle and air cylinder, static contact component and air cylinder are installed in respectively the quiet of interrupting porcelain insulator two ends, on the moving junction block, the static arc contact of static arc contact assembly is installed in quiet junction block center, the quiet main contact of static arc contact assembly is installed in the outside of quiet junction block, the piston rod adpting flange of air cylinder, connect moving contact component on the flange, the moving main contact of moving contact component is installed in to cooperate on the periphery of flange and with flange and consists of the air cylinder piston, the moving arcing contact of moving contact component is installed in the center of flange, connects nozzle on the moving main contact; Column compartment mainly comprises column compartment insulator and an insulated tension pole, and insulated tension pole is connected with the piston rod of air cylinder, it is characterized in that: described static arc contact and moving arcing contact electrically contact apart from being 30～33mm the arc control device axis direction; Described moving contact component, nozzle are 130～133mm at the stroke of arc control device axis direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220385692 CN202721096U (en) | 2012-08-06 | 2012-08-06 | 72.5 kilovolt double frequency circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220385692 CN202721096U (en) | 2012-08-06 | 2012-08-06 | 72.5 kilovolt double frequency circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202721096U true CN202721096U (en) | 2013-02-06 |
Family
ID=47622908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220385692 Expired - Fee Related CN202721096U (en) | 2012-08-06 | 2012-08-06 | 72.5 kilovolt double frequency circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202721096U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109616376A (en) * | 2018-12-25 | 2019-04-12 | 江苏省如高高压电器有限公司 | A kind of arc quenching chamber structure of 72.5KV pot type AC circuit breaker |
-
2012
- 2012-08-06 CN CN 201220385692 patent/CN202721096U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109616376A (en) * | 2018-12-25 | 2019-04-12 | 江苏省如高高压电器有限公司 | A kind of arc quenching chamber structure of 72.5KV pot type AC circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130206 Termination date: 20150806 |
|
| EXPY | Termination of patent right or utility model |