CN202816785U - A 40.5kV outdoor high-voltage vacuum circuit breaker with three respectively-motioned phases - Google Patents

A 40.5kV outdoor high-voltage vacuum circuit breaker with three respectively-motioned phases Download PDF

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Publication number
CN202816785U
CN202816785U CN 201220157852 CN201220157852U CN202816785U CN 202816785 U CN202816785 U CN 202816785U CN 201220157852 CN201220157852 CN 201220157852 CN 201220157852 U CN201220157852 U CN 201220157852U CN 202816785 U CN202816785 U CN 202816785U
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operating
insulator
transmission
circuit breaker
phase
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CN 201220157852
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王忠良
庄小奕
何平
王春岩
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AN'SHAN BEIKE ELECTRICAL Co Ltd
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AN'SHAN BEIKE ELECTRICAL Co Ltd
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Abstract

Provided is a 40.5kV outdoor high-voltage vacuum circuit breaker with three respectively-motioned phases. The overall structure of the vacuum circuit breaker is a three-phase discrete ceramic sleeve pillar. Each ceramic sleeve pillar contains an upper part and a lower part and is internally equipped with a vacuum arc-extinguishing chamber, a conductive contact, a contact spring, and an insulating pull rod. The three-phase ceramic sleeve pillars are mounted on one common rack which is equipped with four footing supports and three operating boxes. Each operating box is equipped with an operating mechanism and each operating mechanism is just connected with the transmission crank arm of the ceramic pillar on the operating mechanism. A permanent magnetic mechanism may be bistable or may be monostable. The advantages of the 40.5kV outdoor high-voltage vacuum circuit breaker with three respectively-motioned phases are that maintenance workload of the operating mechanisms of the circuit breaker can be reduced, that work reliability and service life of the operating mechanisms are increased, and that consistency and repeatability of the opening and closing time of the circuit breaker are increased so that the circuit breaker can be used in a power transmission and distribution system which has accurate and fast breaker opening and closing time controlling requirement and which especially uses a breaker opening and closing working manner with three respectively-motioned phases.

Description

The three-phase separate dynamic formula outdoor high-voltage vacuum breaker of a kind of 40.5KV
Technical field
The utility model 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, its product structure all are the spring actuator mechanism circuit-breakers of three-phase ganged formula.Latest edition " in the high voltage electric appliance handbook (Chinese Xi'an High-Voltage Electrical Appliances research institute 2008 publish), announced the product informations such as the performance parameter of the typical outdoor high-voltage vacuum breakers such as ZW7-40.5 type, ZW30-40.5 type and overall structure.Adopt the outdoor high-voltage vacuum breaker of spring operating mechanism, because the design feature of its operating mechanism has determined that its moving component not only is easy to wearing and tearing, make that its maintenance workload is large, reliability is relatively poor and the life-span is shorter; 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.Therefore, this outdoor high-voltage vacuum breaker can only be applied in the less demanding electrical power trans mission/distribution system, and can not be applied to have accurately that fast on/off switch time control requires, particularly to require the on/off switch working method be in the electrical power trans mission/distribution system of three-phase transfer.
Summary of the invention
The purpose of this utility model provide a kind of adopt permanent-magnet manipulating mechanism, have the start building outdoor high-voltage vacuum breaker of 40.5KV of the mode of doing of three-phase separate, to reduce the operating mechanism maintenance workload of circuit breaker, improve 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 in have accurately that fast on/off switch time control requires, particularly the on/off switch working method is in the electrical power trans mission/distribution system of three-phase transfer.
For achieving the above object, the utility model adopts following technical scheme to realize:
The three-phase separate dynamic formula outdoor high-voltage vacuum breaker of a kind of 40.5KV, its general structure is the discrete insulator column support type of three-phase, the insulator pillar is divided into up and down two parts, in the upper insulator vacuum interrupter is housed, conductive contact, in the lower insulator touch spring and insulated tension pole are housed, the top of upper insulator is by end plate, upper wiring board and connector seal, the connection place of insulator is reached by lower terminal block up and down, lower link seals after connecting, the bottom of lower insulator is connecting a transmission case, transmission case is by casing, the compositions such as end cap and bearing and horizontal drive shaft and divide-shut brake connecting lever thereof, three-phase insulator pillar is contained on the common frame, the transmission case that each phase insulator props up the column bottom all reaches the inside of frame, footing support is housed on the frame, transmission crank arm and buffering connecting lever are housed respectively on the power transmission shaft of three transmission cases, 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) bottom of frame is connected with three control boxs altogether, and each control box is positioned at below its corresponding insulator pillar, and an operating mechanism is housed in each control box, each operating mechanism only and the transmission crank arm of the insulator pillar above it link;
(b) operating mechanism be one by support and be contained in driving the transmission mechanism that connecting lever, output toggle arm and extension spring connecting lever etc. consist of 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 forms by bearing, splined shaft, divide-shut brake of support top;
(c) to drive connecting lever be to be linked together with the screw rod of positive left-hand thread screw thread and coupling head and a stationary links by two ends for the permanent magnet mechanism on the permanent-magnet manipulating mechanism and the divide-shut brake on the transmission mechanism;
(d) have four footing supports on the frame, it lays respectively at the two ends of frame and the both sides of intermediary operation case.
Compared with prior art, the utility model has the advantages that:
1) adopt permanent-magnet manipulating mechanism to replace after the spring operating mechanism, because what permanent-magnet manipulating mechanism adopted is the permanent magnetism locker, the machinery-free wearing and tearing, 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 accurately in the system that time control requires fast.
3) because this circuit breaker has adopted three-phase separate to start building to do mode, therefore, this circuit breaker can be applied in the electrical power trans mission/distribution system with phase-controlled requirement.
Description of drawings
Fig. 1 is the structural representation of 40.5KV outdoor high-voltage vacuum breaker.
Fig. 2 is the structural representation of transmission case.
Fig. 3 is the structural representation of insulator pillar and permanent-magnet manipulating mechanism.
Embodiment
Referring to Fig. 1, Fig. 2 and Fig. 3, the three-phase separate dynamic formula outdoor high-voltage vacuum breaker of 40.5KV of the present utility model, its general structure is similar to existing product, is the discrete insulator column support type of three-phase.Three-phase insulator pillar is contained on the common frame 10, each phase insulator pillar is divided into up and down two parts, the upper end of upper insulator 4 seals with end cap 1 and upper wiring board 2 and connector 3 thereof, the top of the bottom of upper insulator 4 and lower insulator 8 links up with lower terminal block 6 and connector 5 thereof and connector 7, 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 lower 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 insulated tension pole 16 herein, and the hole on this hole and the divide-shut brake connecting lever 27 has been associated in together with a bearing pin 30.Wear in public the bearing 31 of the two ends of power transmission shaft 29 from two end caps 28 of transmission case 17.Transmission crank arm 22 and buffering connecting lever 18 are equipped with respectively in two ends on the power transmission shaft 29 of each phase.Buffer is equipped with in the place of corresponding buffering connecting lever 18 on the frame 10.
The above is the general structure of 40.5KV outdoor high-voltage vacuum breaker of the present utility model, and each phase of circuit breaker that is characterised in that of the present utility model all is furnished with an independently operating mechanism, and the independent operating mechanism of institute's adapted is a kind of permanent-magnet manipulating mechanism.
Specifically, be connected with exactly three control boxs 11 in the bottom of frame 10, and three control boxs 11 lay respectively at three-phase insulator pillar below.A permanent-magnet manipulating mechanism is housed in each control box 11.And four footing supports 12 are housed on frame 10 altogether, and two two ends that are contained in frame 10 wherein, two other is contained in the both sides of intermediary operation case 11.Permanent-magnet manipulating mechanism has the mechanism rack of " H " shape, and in order to increase structural strength, whole mechanism rack 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 consisted of permanent-magnet manipulating mechanism.Wherein the transmission crank arm 22 of output toggle arm 24 and the insulator pillar of each phase links up by 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 ejector pin of permanent magnet mechanism 26 has extended upwardly out from the hole at horizontal support plate middle part, and pass through two ends with the screw rod 25 of positive left-hand thread screw thread and the connecting rod of coupling head and a regular length, 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 coil of permanent magnet mechanism inside namely can be the twin coil mode, also can be the unicoil mode.The permanent magnet mechanism of this version has detailed introduction and designing and calculating on a lot of professional magazines.
40.5KV outdoor high-voltage vacuum breaker of the present utility model, its electric control system adopts is three to overlap independently electrical control gear, controls respectively the permanent-magnet manipulating mechanism of each phase.This device forms take the IGBT device as kernel control chip.The power of IGBT device is as the criterion can satisfy the needed electric current and voltage of permanent-magnet manipulating mechanism, be equipped with again commercially available respective drive circuit board and+the 15V stabilized voltage power supply.Be accumulation power supply and the collector electrode working power of IGBT device adopts, formed by 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 will be connected into the bridge circuit of " 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 common series circuit just passable.
40.5KV outdoor high-voltage vacuum breaker of the present utility model, its course of work is such: when each phase electrical control gear of circuit breaker is received reclosing command, just drive the IGBT device of closing circuit by corresponding drive 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 ejector pin of permanent magnet mechanism 26 is by 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 by movable link rod 23 and also moves downward, and divide-shut brake connecting lever 27 and the insulated tension pole 16 in the insulator pillar, touch spring 15 that the horizontal drive shaft 29 of transmission crank arm 22 by transmission case 17 drives on it move upward, until vacuum interrupter 13 is closed and rely on the permanent magnetism confining force of permanent magnet mechanism, stably remain on the closing position, so far, making process finishes.And this moment, tripping spring 21 since be subject to extension spring connecting lever 20 to upper pulling force and energy storage.When each phase electrical control gear of circuit breaker is received the separating brake instruction, just drive the IGBT device of sub-gate circuit by corresponding drive 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 ejector pin of permanent magnet mechanism 26 is by 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 by movable link rod 23 and also moves upward, and divide-shut brake connecting lever 27 and the insulated tension pole 16 in the insulator pillar, touch spring 15 that the horizontal drive shaft 29 of transmission crank arm 22 by transmission case 17 drives on it move downward, until vacuum interrupter 13 separates and relies on the pulling force of tripping spring 21, stably remain on the open position, so far, the separating brake process finishes.

Claims (4)

1. the three-phase separate dynamic formula outdoor high-voltage vacuum breaker of a 40.5KV, its general structure is the discrete insulator column support type of three-phase, the insulator pillar is divided into up and down two parts, in the upper insulator vacuum interrupter is housed, conductive contact, in the lower insulator touch spring and insulated tension pole are housed, the top of upper insulator is by end plate, upper wiring board and connector seal, up and down insulator and the connection place by lower terminal block and on, lower link seals after connecting, the bottom of lower insulator is connecting a transmission case, transmission case is by casing, end cap and bearing and horizontal drive shaft and divide-shut brake connecting lever thereof form, three-phase insulator pillar is contained on the common frame, the transmission case that each phase insulator props up the column bottom all reaches the inside of frame, footing support is housed on the frame, transmission crank arm and buffering connecting lever are housed respectively on the power transmission shaft of three transmission cases, 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) bottom of frame is connected with three control boxs altogether, and each control box is positioned at below the corresponding insulator pillar, and an operating mechanism is housed in each control box, each operating mechanism only and the transmission crank arm of the insulator pillar of its correspondence link;
(b) operating mechanism be one by support and be contained in driving the transmission mechanism that connecting lever, output toggle arm and extension spring connecting lever consist of 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 forms by bearing, splined shaft, divide-shut brake of support top;
(c) to drive connecting lever be to be linked together with the screw rod of positive left-hand thread screw thread and coupling head and a stationary links by two ends for the permanent magnet mechanism on the permanent-magnet manipulating mechanism and the divide-shut brake on the transmission mechanism;
(d) have four footing supports on the frame, it lays respectively at the two ends of frame and the both sides of intermediary operation case.
2. the three-phase separate dynamic formula outdoor high-voltage vacuum breaker of 40.5KV according to claim 1, it is characterized in that: the permanent magnet mechanism that adopts is bistable-state permanent magnet mechanism, or Monostable permanent magnetic mechanism.
3. the three-phase separate dynamic formula outdoor high-voltage vacuum breaker of 40.5KV according to claim 2, it is characterized in that: the permanent magnet mechanism that adopts is the unicoil mode, or the twin coil mode.
4. according to claim 1 to the three-phase separate dynamic formula outdoor high-voltage vacuum breaker of 3 each described 40.5KV, it is characterized in that: the described tripping spring that is contained in the support outside can be one, also can be more than two or two.
CN 201220157852 2012-04-14 2012-04-14 A 40.5kV outdoor high-voltage vacuum circuit breaker with three respectively-motioned phases Active CN202816785U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102623232A (en) * 2012-04-14 2012-08-01 鞍山北科电气有限公司 Three-phase transferring outdoor high voltage vacuum breaker of 40.5 KV
CN104347323A (en) * 2013-07-23 2015-02-11 株式会社东芝 Gas circuit breaker
CN105513913A (en) * 2015-12-07 2016-04-20 中国电力科学研究院 High-voltage circuit breaker adopting built-in type operating mechanism

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102623232A (en) * 2012-04-14 2012-08-01 鞍山北科电气有限公司 Three-phase transferring outdoor high voltage vacuum breaker of 40.5 KV
CN104347323A (en) * 2013-07-23 2015-02-11 株式会社东芝 Gas circuit breaker
CN105513913A (en) * 2015-12-07 2016-04-20 中国电力科学研究院 High-voltage circuit breaker adopting built-in type operating mechanism

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