CN102664119A - 40.5KV single-phase outdoor high-voltage vacuum circuit breaker - Google Patents
40.5KV single-phase outdoor high-voltage vacuum circuit breaker Download PDFInfo
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- CN102664119A CN102664119A CN2012101088025A CN201210108802A CN102664119A CN 102664119 A CN102664119 A CN 102664119A CN 2012101088025 A CN2012101088025 A CN 2012101088025A CN 201210108802 A CN201210108802 A CN 201210108802A CN 102664119 A CN102664119 A CN 102664119A
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Abstract
The invention relates to a 40.5KV single-phase outdoor high-voltage vacuum circuit breaker. The 40.5KV single-phase outdoor high-voltage vacuum circuit breaker is in a general structure of discrete insulator pillar, wherein the insulator pillar is divided into an upper part and a lower part, and is internally provided with a vacuum arcing chamber, an electric conducting contact, a contact spring and an insulating pull rod, the insulator pillar is arranged at the center of the upper part of a rack, and an operation box is arranged at the center of the lower part of the rack. A permanent magnet operating mechanism is arranged inside the operation box, an output connecting lever of the permanent magnet operating mechanism is connected with a transmission connecting lever of the insulator pillar through a movable connecting rod whose length can be adjusted. According to the 40.5KV single-phase outdoor high-voltage vacuum circuit breaker, the workload for the maintenance of the operating mechanism of the circuit breaker can be effectively reduced, and the operating reliability and the service life of the operating mechanism can be improved and prolonged; and the consistency and the repeatability of the closing time and the opening time of the breaker can be improved, so that the breaker can be applied to a single-phase, two-phase or three-phase circuit, and to a power transmission and distribution system having accurate and opening and closing time control requirements, in particular to the power transmission and distribution system having the requirement of the three-phase transfer operating mode.
Description
Technical field
The present invention relates to a kind of other outdoor high-voltage vacuum breaker of 40.5KV level.
Background technology
At present, in the prior art, other outdoor high-voltage vacuum breaker of 40.5KV level all is to be furnished with circuit breaker spring operating mechanism, three-phase integrated.Adopt the outdoor high-voltage vacuum breaker of spring operating mechanism,, make that its maintenance workload is big, reliability is relatively poor and the life-span is shorter because the design feature of its operating mechanism has determined its moving component not only to be easy to wearing and tearing; And be furnished with the high-pressure vacuum breaker of this spring operating mechanism, and the consistency of its on/off switch time is relatively poor, and particularly the on/off switch time is repeated relatively poor; And the structure of this circuit breaker all is three-phase integrated, and working method also is three to link.Therefore; This outdoor high-voltage vacuum breaker can only whole be applied in the electrical power trans mission/distribution system of three-phase combined operation mode; Be applied to uniline and can not take apart, or have that accurately fast on/off switch time control requires, particularly have in the electrical power trans mission/distribution system that three-phase transfer working method requires.
Summary of the invention
The object of the invention just provides a kind of 40.5KV outdoor high-voltage vacuum breaker permanent-magnet manipulating mechanism, phase structure that adopts, and to reduce the operating mechanism maintenance workload of circuit breaker, improves the functional reliability and the service life of its operating mechanism; Improve consistency and the repeatability of circuit-breaker switching on-off time, make it to be applied to a phase, two mutually or in the three-phase line and can be applied to have accurately that on/off switch time control fast requires, particularly have in the electrical power trans mission/distribution system that three-phase transfer working method requires.
For realizing above-mentioned purpose, the present invention adopts following technical scheme to realize:
The outdoor high-voltage vacuum breaker of a kind of 40.5KV, its general structure are single-phase discrete insulator column support type, and the insulator pillar is divided into two parts up and down; Vacuum interrupter, conductive contact are housed in the last insulator, in the following insulator touch spring and insulated tension pole are housed, the top of last insulator is sealed by end plate, upper wiring board and connector; The connection place of insulator is by terminal block and upper and lower connector are sealed after connecting down up and down; The bottom of following insulator is connecting a transmission case, and transmission case is made up of casing, end cap and bearing and horizontal drive shaft and divide-shut brake connecting lever thereof etc., and the insulator pillar is contained on the frame; The transmission case that insulator props up the column bottom has reached the inside of frame; Two footing supports are housed on the frame, transmission crank arm and buffering connecting lever are housed respectively on the power transmission shaft of transmission case, the output toggle arm of its transmission crank arm and operating mechanism links; And operating mechanism is positioned at the control box of frame lower, it is characterized in that:
(a) the insulator pillar is positioned at the center of upper rack, and control box is positioned at the center of frame lower, and the footing support is positioned at the both sides of frame lower;
(b) operating mechanism be one by support and be contained in the driving the transmission mechanism that connecting lever, output toggle arm and extension spring connecting lever etc. constitute and be contained in the permanent magnet mechanism of mid-stent and be contained in the permanent-magnet manipulating mechanism that the tripping spring in the support outside is formed of support top by bearing, splined shaft, divide-shut brake;
(c) permanent magnet mechanism on the permanent-magnet manipulating mechanism and the divide-shut brake on the transmission mechanism drive connecting lever be through two ends have positive left-hand thread screw thread screw rod and coupling head and stationary links be linked together.
Compared with prior art, advantage of the present invention is:
1) adopts permanent-magnet manipulating mechanism to replace after the spring operating mechanism,, do not have the machinery wearing and tearing because the permanent-magnet manipulating mechanism employing is the permanent magnetism locker; Mechanical lock buckle device in the spring operating mechanism; Permanent-magnet manipulating mechanism works together more stable, and performance parameter is difficult for changing, and maintenance workload reduces greatly; And functional reliability increases greatly, and mechanical endurance is therefore also longer.
2) adopt permanent-magnet manipulating mechanism to replace after the spring operating mechanism, because the performance of permanent-magnet manipulating mechanism is highly stable, therefore, the consistency of the branch wire time of circuit breaker is very good, and repeatability is also very good.Make circuit breaker can be applied to have in the system of accurate Fast Time control requirement.
3) because this circuit breaker has adopted the phase structure mode, therefore, this circuit breaker can be applied to a phase, two mutually or in the circuit of three-phase neatly, also can three combines to be applied to have in the electrical power trans mission/distribution system that three-phase transfer working method requires.
Description of drawings
Fig. 1 is the structural representation of the single-phase outdoor high-voltage vacuum breaker of 40.5KV.
Fig. 2 is the structural representation of insulator pillar and permanent-magnet manipulating mechanism.
Fig. 3 is the structural representation of transmission case.
Embodiment
Referring to Fig. 1, Fig. 2 and Fig. 3, the single-phase outdoor high-voltage vacuum breaker of 40.5KV of the present invention, its general structure is single-phase discrete insulator column support type.The insulator pillar is contained on the frame 10; The insulator pillar is divided into two parts up and down; Seal with end cap 1 and upper wiring board 2 and connector 3 thereof the upper end of last insulator 4; The top of the bottom of last insulator 4 and following insulator 8 links up with connector 7 with following terminal block 6 and connector 5 thereof, and vacuum interrupter 13, conductive contact 14, touch spring 15 and insulated tension pole 16 are housed in the insulator up and down successively.The bottom of following insulator 8 links up with connector 9 and transmission case 17.Transmission case 17 is inlaid on the frame 10.The lower end of insulated tension pole 16 has reached the inside of transmission case 17.A horizontal drive shaft 29 is arranged in the cavity of transmission case 17; A divide-shut brake connecting lever 27 is arranged on the power transmission shaft 29; There is a hole end of divide-shut brake connecting lever 27; Also there is a hole bottom that reaches the insulated tension pole 16 here, the hole on this hole and the divide-shut brake connecting lever 27 with a bearing pin 30 together.Wear in public the bearing 31 of the two ends of power transmission shaft 29 from two end caps 28 of transmission case 17.The two ends of power transmission shaft 29 are equipped with transmission crank arm 22 and buffering connecting lever 18 respectively.Buffer is equipped with in the place of corresponding buffering connecting lever 18 on the frame 10.
The structure that embodies characteristic of the present invention is: the insulator pillar of this circuit breaker is positioned at the center on frame 10 tops, is fixed by bolts on the frame 10.Control box 11 then is positioned at the center of frame 10 bottoms, also is to be fixed by bolts on the frame 10.This circuit breaker has two footing supports 12, and footing support 12 is positioned at the both sides of frame 10 bottoms.A permanent-magnet manipulating mechanism is arranged in control box 11.This permanent-magnet manipulating mechanism has the mechanism rack of " H " shape, and in order to increase structural strength, the entire mechanism support is welded on another piece iron plate.A hole is respectively arranged at the top at two sidewalls of mechanism rack, and bearing is housed on the hole.Be installed with a splined shaft on the bearing, a divide-shut brake be housed on the splined shaft drive connecting lever 19, output toggle arm 24 and extension spring connecting lever 20.These bearings, splined shaft, divide-shut brake drive the transmission mechanism that connecting lever 19, output toggle arm 24 and extension spring connecting lever 20 etc. have constituted permanent-magnet manipulating mechanism.Wherein the transmission crank arm 22 of output toggle arm 24 and insulator pillar links up through the movable link rod 23 that can regulate length; A tripping spring 21 in extension spring connecting lever 20 first line of a couplet, and the other end of tripping spring 21 has hung on the sidewall of permanent-magnet manipulating mechanism support.On the horizontal support plate in the middle part of the mechanism rack of " H " shape; Lifting a permanent magnet mechanism 26; The output push rod of permanent magnet mechanism 26 has extended upwardly from the hole at horizontal support plate middle part; And have the screw rod 25 of positive left-hand thread screw thread and the connecting rod of a coupling head and a regular length through two ends, drive connecting lever 19 with divide-shut brake and link up.
What permanent magnet mechanism adopted is matured product of the prior art, and it can be the permanent magnet mechanism of bi-stable type, also can be the permanent magnet mechanism of monostable type; And the inner coil of permanent magnet mechanism promptly can be the twin coil mode, also can be the unicoil mode.The permanent magnet mechanism of this version all has detailed introduction and designing and calculating on a lot of professional magazines.
The single-phase outdoor high-voltage vacuum breaker of 40.5KV of the present invention, its electrical control gear are to be the power electronics control device of core with the IGBT device.The power of IGBT device is as the criterion can satisfy the needed electric current and voltage of permanent-magnet manipulating mechanism, is equipped with commercially available respective drive circuit board and+15V stabilized voltage power supply again.And the collector electrode working power of IGBT device adopts is accumulation power supply, is made up of several DC electrolytic condensers and corresponding rectification circuit plate.If what permanent magnet mechanism adopted is the work of unicoil mode, the IGBT device in its electric control system will adopt four and the bridge circuit that will be connected into " H " shape, and the permanent magnet mechanism coil is connected on the centre of bridge circuit; If what permanent magnet mechanism adopted is the work of twin coil mode, the IGBT device in its electric control system is just as long as adopt two, and a coil of every IGBT and permanent magnet mechanism to be connected into the common series circuit just passable.
The single-phase outdoor high-voltage vacuum breaker of 40.5KV of the present invention; Its course of work is such: when the electrical control gear of circuit breaker is received reclosing command; Just drive the IGBT device of closing circuit through the corresponding driving circuit board; It is electric that the permanent magnet mechanism closing coil of circuit breaker is got, and permanent magnet mechanism begins action.At this moment, the output push rod of permanent magnet mechanism 26 is through screw rod 25 and coupling head and stationary links drives divide-shut brake driving connecting lever 19, extension spring connecting lever 20 moves upward, and output toggle arm 24 moves downward.Output toggle arm 24 drives transmission crank arm 22 through movable link rod 23 and also moves downward; And the divide-shut brake connecting lever 27 that the horizontal drive shaft 29 of transmission crank arm 22 through transmission case 17 drives on it moves upward with insulated tension pole 16, touch spring 15 in the insulator pillar; Closed and rely on the permanent magnetism confining force of permanent magnet mechanism until vacuum interrupter 13; Stably remain on the closing position, so far, making process finishes.And this moment, tripping spring 21 since receive extension spring connecting lever 20 to upper pulling force and energy storage.Receive separating brake when instruction when the electrical control gear of circuit breaker, just drive the IGBT device of sub-gate circuit through the corresponding driving circuit board, it is electric that the permanent magnet mechanism switching winding of circuit breaker is got, and permanent magnet mechanism begins action.At this moment, the output push rod of permanent magnet mechanism 26 is through screw rod 25 and coupling head and stationary links drives divide-shut brake driving connecting lever 19, extension spring connecting lever 20 moves downward, and output toggle arm 24 moves upward.Output toggle arm 24 drives transmission crank arm 22 through movable link rod 23 and also moves upward; And the divide-shut brake connecting lever 27 that the horizontal drive shaft 29 of transmission crank arm 22 through transmission case 17 drives on it moves downward with insulated tension pole 16, touch spring 15 in the insulator pillar; Opened and relied on the pulling force of tripping spring 21 in 13 minutes until vacuum interrupter; Stably remain on the separating brake position, so far, the separating brake process finishes.
Compared with prior art, advantage of the present invention is: after circuit breaker has adopted permanent-magnet manipulating mechanism to replace spring operating mechanism, because the permanent-magnet manipulating mechanism employing is the permanent magnetism locker; There are not the machinery wearing and tearing, the mechanical lock buckle device in the spring operating mechanism, permanent-magnet manipulating mechanism works together more stable; Performance parameter is difficult for changing; Maintenance workload reduces greatly, and functional reliability increases greatly, and mechanical endurance is therefore also longer; Adopt permanent-magnet manipulating mechanism to replace after the spring operating mechanism, because the performance of permanent-magnet manipulating mechanism is highly stable, therefore, the branch wire time consistency of circuit breaker is very good, and repeatability is also very good; Again because this circuit breaker has adopted the phase structure mode; Therefore; This circuit breaker can be applied in a phase, two phases or the three-phase line flexibly; Also can three combine, make it to be applied to have in the occasion that accurate Fast Time control requires, particularly be applied in and have in the electrical power trans mission/distribution system that three-phase transfer working method requires.
Claims (5)
1. the single-phase outdoor high-voltage vacuum breaker of a 40.5KV, its general structure is single-phase discrete insulator column support type, the insulator pillar is divided into two parts up and down; Vacuum interrupter, conductive contact are housed in the last insulator, in the following insulator touch spring and insulated tension pole are housed, the top of last insulator is sealed by end plate, upper wiring board and connector; The connection place of insulator is by terminal block and upper and lower connector are sealed after connecting down up and down; The bottom of following insulator is connecting a transmission case, and transmission case is made up of casing, end cap and bearing and horizontal drive shaft and divide-shut brake connecting lever thereof, and the insulator pillar is contained on the frame; The transmission case that insulator props up the column bottom has reached the inside of frame; Two footing supports are housed on the frame, transmission crank arm and buffering connecting lever are housed respectively on the power transmission shaft of transmission case, the output toggle arm of its transmission crank arm and operating mechanism links; Operating mechanism is positioned at the control box of frame lower, it is characterized in that:
(a) the insulator pillar is positioned at the center of upper rack, and control box is positioned at the center of frame lower, and the footing support is positioned at the both sides of frame lower;
(b) operating mechanism be one by support and be contained in the driving the transmission mechanism that connecting lever, output toggle arm and extension spring connecting lever constitute and be contained in the permanent magnet mechanism of mid-stent and be contained in the permanent-magnet manipulating mechanism that the tripping spring in the support outside is formed of support top by bearing, splined shaft, divide-shut brake;
(c) permanent magnet mechanism on the permanent-magnet manipulating mechanism and the divide-shut brake on the transmission mechanism drive connecting lever be through two ends have positive left-hand thread screw thread screw rod and coupling head and stationary links be linked together.
2. the single-phase outdoor high-voltage vacuum breaker of 40.5KV according to claim 1, it is characterized in that: the permanent magnet mechanism that is adopted is a bistable-state permanent magnet mechanism, or Monostable permanent magnetic mechanism.
3. the single-phase outdoor high-voltage vacuum breaker of 40.5KV according to claim 1 and 2, it is characterized in that: the permanent magnet mechanism that is adopted is unicoil mode or twin coil mode.
4. the single-phase outdoor high-voltage vacuum breaker of 40.5KV according to claim 1 and 2 is characterized in that: the tripping spring that is contained in the support outside can be one, also can be more than two or two.
5. the single-phase outdoor high-voltage vacuum breaker of 40.5KV according to claim 3 is characterized in that: the tripping spring that is contained in the support outside can be one, also can be more than two or two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101088025A CN102664119A (en) | 2012-04-14 | 2012-04-14 | 40.5KV single-phase outdoor high-voltage vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101088025A CN102664119A (en) | 2012-04-14 | 2012-04-14 | 40.5KV single-phase outdoor high-voltage vacuum circuit breaker |
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| CN102664119A true CN102664119A (en) | 2012-09-12 |
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| CN2012101088025A Pending CN102664119A (en) | 2012-04-14 | 2012-04-14 | 40.5KV single-phase outdoor high-voltage vacuum circuit breaker |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5912604A (en) * | 1997-02-04 | 1999-06-15 | Abb Power T&D Company, Inc. | Molded pole automatic circuit recloser with bistable electromagnetic actuator |
| CN2919502Y (en) * | 2006-07-10 | 2007-07-04 | 沈阳工业大学 | Parted phase permanent magnetism mechanism vacuum circuit breaker |
| CN101075509A (en) * | 2007-06-26 | 2007-11-21 | 西安交通大学 | High-voltage vacuum circuit breaker with mono-fracture voltage to 252kV |
| CN101582347A (en) * | 2009-03-24 | 2009-11-18 | 童建朋 | Permanent magnet type 35KV vacuum circuit breaker |
| CN202067720U (en) * | 2011-05-19 | 2011-12-07 | 山东鼎鑫电气科技有限公司 | Vacuum circuit breaker for three-phase AC outdoor high voltage |
| CN202662521U (en) * | 2012-04-14 | 2013-01-09 | 鞍山北科电气有限公司 | 40.5 KV Single-phase outdoor high-voltage vacuum circuit breaker |
-
2012
- 2012-04-14 CN CN2012101088025A patent/CN102664119A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5912604A (en) * | 1997-02-04 | 1999-06-15 | Abb Power T&D Company, Inc. | Molded pole automatic circuit recloser with bistable electromagnetic actuator |
| CN2919502Y (en) * | 2006-07-10 | 2007-07-04 | 沈阳工业大学 | Parted phase permanent magnetism mechanism vacuum circuit breaker |
| CN101075509A (en) * | 2007-06-26 | 2007-11-21 | 西安交通大学 | High-voltage vacuum circuit breaker with mono-fracture voltage to 252kV |
| CN101582347A (en) * | 2009-03-24 | 2009-11-18 | 童建朋 | Permanent magnet type 35KV vacuum circuit breaker |
| CN202067720U (en) * | 2011-05-19 | 2011-12-07 | 山东鼎鑫电气科技有限公司 | Vacuum circuit breaker for three-phase AC outdoor high voltage |
| CN202662521U (en) * | 2012-04-14 | 2013-01-09 | 鞍山北科电气有限公司 | 40.5 KV Single-phase outdoor high-voltage vacuum circuit breaker |
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Application publication date: 20120912 |