CN204011251U - Plateau type indoor high-voltage vacuum circuit breaker - Google Patents
Plateau type indoor high-voltage vacuum circuit breaker Download PDFInfo
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- CN204011251U CN204011251U CN201420508281.7U CN201420508281U CN204011251U CN 204011251 U CN204011251 U CN 204011251U CN 201420508281 U CN201420508281 U CN 201420508281U CN 204011251 U CN204011251 U CN 204011251U
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- contact arm
- circuit breaker
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- mume flower
- wire outlet
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Abstract
A kind of plateau type indoor high-voltage vacuum circuit breaker is provided, there is breaker operation mechanism, the insulating cylinder of in-built arc control device, contact arm and Mume flower contact, insulating cylinder is fixed on breaker operation mechanism one side upper end, insulating cylinder is fixedly connected with contact arm one end, the contact arm other end is fixedly connected with upper wire outlet seat with Mume flower contact and Mume flower contact is placed in upper wire outlet seat, contact arm and upper wire outlet seat outer surface holding integrated formula insulating sleeve, the axial retainer ring spacing that is arranged on contact arm end face for integral type insulating sleeve end face, the creepage distance of the insulating case being set with on the insulated tension pole of arc control device is 520mm, the centre-to-centre spacing of Mume flower contact is 310mm.The utility model improves by the integral type insulating sleeve of the creepage distance to Mume flower contact centre-to-centre spacing, insulated tension pole and contact arm and upper wire outlet seat outer surface, the insulation level of circuit breaker is greatly improved, the body that reduced to open circuit is long-pending, has improved the reliability of operation under high height above sea level condition of circuit breaker.
Description
Technical field
The utility model belongs to technical field of vacuum switches, is specifically related to a kind of plateau type indoor high-voltage vacuum circuit breaker, can support the use in height above sea level the 12kV frequency of 4000 meters in the electrical power trans mission/distribution system of 50 (60) Hz.
Background technology
High-pressure vacuum breaker is being undertaken the protection such as overload, short circuit of power equipment and the important task of controlling in high-voltage power supply and distribution system.At present, in the indoor distribution system of 12kV, taking KYN28A-12 switch cubicle (armored type withdraw-type AC metal closed switch cabinet) as main flow cabinet type, thereby handcart-type ZN63A matching used with it (VS1)-12 type series indoor high-voltage vacuum circuit breaker is also popularized by large area.Widely used plateau type handcart-type high-voltage vacuum circuit breaker VS1-12 series in current domestic distribution system, there is following weak point: the one, for meeting the insulation level of circuit breaker under high height above sea level condition, circuit breaker need be by circuit breaker main conductive circuit and the circuit breaker metal grounding parts distance of positions from increase, meet its insulation level, increase cushion block at insulating cylinder installed surface, cause circuit breaker volume after completing to increase and circuit breaker stability reduction in operating process; The 2nd, accepted standard insulated tension pole carries out pyrocondensation processing to it on its basis, can not be completely and insulated tension pole body form one, although increased creepage distance, but between pull bar and heat-shrinkable T bush, still there is air gap, make to form non-uniform electric field between charged position and metal ground connection position, reduce reliability of operation; The 3rd, what adopt in Mume flower contact part is heat-shrinkable T bush insulating material, under the effect of severe running environment and electrochemical corrosion, the aging speed of heat-shrinkable T bush is accelerated, thereby the safe operation of electrical network is threatened.Above-mentioned defect has restricted the useful life of high-pressure vacuum breaker in high altitude localities, is therefore necessary to propose to improve.
Utility model content
The technical problem that the utility model solves: a kind of plateau type indoor high-voltage vacuum circuit breaker is provided, contact arm and on wire outlet seat outer surface be set with the integral type insulating sleeve made from epoxy resin, and the centre-to-centre spacing that makes the Mume flower contact on insulating cylinder is 310mm, the air line distance that makes the epoxy resin insulating case being set with on the insulated tension pole of arc control device is 188mm, and creepage distance is 520mm.
The technical solution adopted in the utility model: plateau type indoor high-voltage vacuum circuit breaker, there is breaker operation mechanism, the insulating cylinder of in-built arc control device, contact arm and Mume flower contact, described insulating cylinder is fixed on breaker operation mechanism one side upper end, described insulating cylinder is fixedly connected with contact arm one end, the described contact arm other end is fixedly connected with upper wire outlet seat with Mume flower contact and Mume flower contact is placed in upper wire outlet seat, described contact arm and upper wire outlet seat outer surface holding integrated formula insulating sleeve, the axial retainer ring spacing that is arranged on contact arm end face for described integral type insulating sleeve end face, the air line distance of the insulating case being set with on the insulated tension pole of described arc control device is 188mm, creepage distance is 520mm, the centre-to-centre spacing of described Mume flower contact is 310mm.
Further, described integral type insulating sleeve adopts epoxy resin to make.
Further, described insulating case adopts epoxy resin to make.
The utility model advantage compared with prior art:
1, adopt plateau type special isolation cylinder, the centre-to-centre spacing that is Mume flower contact increases to 310mm, makes circuit breaker meet the insulation level under high height above sea level condition, and needn't increase the annexes such as cross-over block, reduce the volume of circuit breaker, improved the stability of breaker operator;
2, adopting air line distance is 188mm, the insulated tension pole that creepage distance is 520mm, and its 1min industrial frequency withstand voltage can reach 60kV, needn't carry out pyrocondensation to it and process the insulating requirements that just can meet under high height above sea level condition;
3, adopt epoxy resin sheath to replace heat-shrinkable T bush material, make its corrosion-resistant and ageing resistance raising, improved the reliability service of electrical network.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Embodiment
Below in conjunction with accompanying drawing 1, a kind of embodiment of the present utility model is described.
Plateau type indoor high-voltage vacuum circuit breaker, there is circuit breaker operation mechanism 1, the insulating cylinder 2 of in-built arc control device 6, contact arm 3 and Mume flower contact 4, described insulating cylinder 2 is fixed on operating mechanism 1 one side upper ends, described insulating sleeve 2 is fixedly connected with contact arm 3 one end, described contact arm 3 other ends are fixedly connected with upper wire outlet seat 5 with Mume flower contact 4 and Mume flower contact 4 is placed in upper wire outlet seat 5, described contact arm 3 and upper wire outlet seat 5 outer surface holding integrated formula insulating sleeves 7, described integral type insulating sleeve 7 adopts epoxy resin to make, integral type insulating sleeve 7 end faces are spacing with the axial back-up ring 8 that is arranged on contact arm 3 end faces, on the insulated tension pole 9 of described arc control device 6, the air line distance of the insulating case 10 of suit is 188mm, creepage distance is 520mm, described insulating case 10 adopts epoxy resin to make, the centre-to-centre spacing of described Mume flower contact 4 is 310mm.
Arc control device 6 are assembled and adopt M10*45 soket head cap screw to be fixedly mounted in insulating cylinder 2, again mounted insulating cylinder 2 is assembled and be fixedly mounted on breaker operation mechanism 1 one side end faces with the soket head cap screw of M10*25, integral type insulating sleeve 7 is installed on contact arm 3 and upper wire outlet seat 5 outer surfaces again, and adopts φ 50 shaft block rings 8 spacing.When circuit breaker moves local height above sea level and exceedes 1000 meters, adopt formula:
K=1/ (1.1-H*10
-3), circuit breaker industrial frequency withstand voltage=48*K
K industrial frequency withstand voltage correction factor
H circuit breaker moves on-the-spot height above sea level
The resistance test of circuit breaker detects according to revised numerical value.
In sum, improve by the creepage distance of Mume flower contact 4 centre-to-centre spacing on Switch Insulation Cylinder 2, insulated tension pole and the integral type insulating sleeve 7 of contact arm 3 and upper wire outlet seat 5 outer surfaces, the insulation level of circuit breaker is greatly improved, the body that reduced to open circuit is long-pending, has improved the reliability of operation under high height above sea level condition of circuit breaker.
Above-described embodiment, is preferred embodiment of the present utility model, is not used for limiting the utility model practical range, and the equivalence of being done with content described in the utility model claim therefore all changes, within all should being included in the utility model claim scope.
Claims (3)
1. plateau type indoor high-voltage vacuum circuit breaker, there is breaker operation mechanism (1), the insulating cylinder (2) of in-built arc control device (6), contact arm (3) and Mume flower contact (4), described insulating cylinder (2) is fixed on breaker operation mechanism (1) one side upper end, described insulating cylinder (2) is fixedly connected with contact arm (3) one end, described contact arm (3) other end is fixedly connected with upper wire outlet seat (5) with Mume flower contact (4) and Mume flower contact (4) is placed in upper wire outlet seat (5), it is characterized in that: described contact arm (3) and upper wire outlet seat (5) outer surface holding integrated formula insulating sleeve (7), described integral type insulating sleeve (7) end face is spacing with the axial back-up ring (8) that is arranged on contact arm (3) end face, the air line distance of the insulating case (10) of the upper suit of insulated tension pole (9) of described arc control device (6) is 188mm, creepage distance is 520mm, the centre-to-centre spacing of described Mume flower contact (4) is 310mm.
2. plateau type indoor high-voltage vacuum circuit breaker according to claim 1, is characterized in that: described integral type insulating sleeve (7) adopts epoxy resin to make.
3. plateau type indoor high-voltage vacuum circuit breaker according to claim 1 and 2, is characterized in that: described insulating case (10) adopts epoxy resin to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420508281.7U CN204011251U (en) | 2014-09-04 | 2014-09-04 | Plateau type indoor high-voltage vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420508281.7U CN204011251U (en) | 2014-09-04 | 2014-09-04 | Plateau type indoor high-voltage vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204011251U true CN204011251U (en) | 2014-12-10 |
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ID=52051212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420508281.7U Active CN204011251U (en) | 2014-09-04 | 2014-09-04 | Plateau type indoor high-voltage vacuum circuit breaker |
Country Status (1)
| Country | Link |
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| CN (1) | CN204011251U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390331A (en) * | 2015-12-14 | 2016-03-09 | 法乐绮电气(上海)有限公司 | High-voltage vacuum circuit breaker |
| CN106298359A (en) * | 2016-08-30 | 2017-01-04 | 安徽中电兴发与鑫龙科技股份有限公司 | A kind of plateau vacuum circuit breaker |
-
2014
- 2014-09-04 CN CN201420508281.7U patent/CN204011251U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390331A (en) * | 2015-12-14 | 2016-03-09 | 法乐绮电气(上海)有限公司 | High-voltage vacuum circuit breaker |
| CN105390331B (en) * | 2015-12-14 | 2019-03-05 | 法乐绮电气(上海)有限公司 | A kind of high-pressure vacuum breaker |
| CN106298359A (en) * | 2016-08-30 | 2017-01-04 | 安徽中电兴发与鑫龙科技股份有限公司 | A kind of plateau vacuum circuit breaker |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |