CN102064038B - Intelligent circuit breaker with phase selection function - Google Patents
Intelligent circuit breaker with phase selection function Download PDFInfo
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- CN102064038B CN102064038B CN 201110020400 CN201110020400A CN102064038B CN 102064038 B CN102064038 B CN 102064038B CN 201110020400 CN201110020400 CN 201110020400 CN 201110020400 A CN201110020400 A CN 201110020400A CN 102064038 B CN102064038 B CN 102064038B
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- permanent magnet
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses an intelligent circuit breaker with the phase selection function, which comprises a shell and a phase selection device in the shell, wherein the phase selection device comprises bistable permanent magnet mechanisms and a yoke plate mechanism, the bistable permanent magnet mechanisms are three groups of electromagnetic mechanisms, and each transmission rod is simultaneouslyengaged to or disengaged from the yoke plate mechanism to realize the simultaneous advancing and retreating opening/closing or single-phase advancing and retreating opening/closing of a three-phase circuit. By adopting the novel bistable permanent magnet mechanisms and the yoke plate mechanism, the intelligent circuit breaker not only has synchronous on and off capability but also has split-phaseselection on and off capability, and can be used as a reclosing device by equipping a reclosing controller; and the intelligent circuit breaker can also be used as an opening switch by equipping an intelligent controller. Meanwhile, the mechanisms are loaded into an SF6 air tank shell to avoid pollution and rusting by the external environment; and the switch shell is subjected to frosting and solid insulation heat isolating treatment so as to increase the insulating property and reduce the size of the switch, and the internal and external connection part of the switch is subjected to double-layer sealing treatment, thus the service life of the switch can be prolonged to more than 30,000 times, and the switch is applicable to frequent operation.
Description
Technical field
The present invention discloses a kind of intelligent breaker with phase-selecting function, divides by International Patent Classification (IPC) (IPC) to belong to circuit breaker manufacturing technology field, especially relates to a kind of Threephase common-box intelligent breaker that possesses synchronous break-make and phase-splitting gating cutting capacity.
Background technology
Circuit breaker is divided into primary cut-out and low-voltage circuit breaker by its scope of application, wherein, and primary cut-out (or claiming high-pressure vacuum switch); Be divided into the vertical and Threephase common-box of three-phase separate by the Structural Tectonics form; Be electric control appliance main in the power transmission and transformation line, when electric power system normally moved, it can cut off and connect zero load and the load current of circuit and various electric equipments; When system broke down, it and relay protection and control circuit cooperated, rapid cutting-off of short-circuit fault current, and preventing expansion accident scope, so the quality of primary cut-out work, directly have influence on the safe operation of electric power system.
Existing Threephase common-box outdoor vacuum circuit breaker is to drive 3 phase contact mechanisms by one group of electromagnet, reaches 3 and divides mutually/close a floodgate; In order to strengthen its fail safe, the distance between breaker body and the shell is larger, and especially distance is larger between shell roof and the vacuum bubbles (vacuum interrupter), thereby causes overall dimensions large, and production cost is high and install inconvenient; Because housing is exposed in the atmosphere, the housing internal-external temperature difference is larger during work, easily produces condensation.
Existing outdoor breaker generally is to advance simultaneously three-phase circuit by electromagnetic mechanism, reach three-phase and close a floodgate simultaneously or separating brake, but break-make is large to the impact of electrical network when circuit breaker, and affect useful life; Present electromagnetic mechanism generally comprises a permanent magnet and solenoid, behind the coil electricity, change into mechanical force control circuit closure or disconnection by electromagnetism, when attracting state is operating state, realize by permanent magnet, yet, because can weakening, for a long time use of magnetic of permanent magnet disappears, have influence on the normal use of circuit breaker.
Existing gas filling circuit breaker generally is the sulphur hexafluoride (SF6) that is filled with insulation function between breaker body and its shell, to improve its security performance.At present, the shell nozzle position sealing property of circuit breaker is relatively poor, potential safety hazard easily occurs.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of rational in infrastructure, safe and reliable, intelligent breaker with phase-selecting function, the three-phase circuit of this circuit breaker can be same the time-division/combined floodgate reaches synchronous on-off function, also can select single-phase minute/close a floodgate and realize the disconnected function of phase-splitting gating.
For achieving the above object, the present invention is achieved by the following technical solutions:
A kind of intelligent breaker with phase-selecting function comprises:
One housing;
One choosing is device mutually, it is arranged in the housing, advance and retreat minute when control circuit breaker three-phase circuit is installed in this choosing mutually/close a floodgate or single-phase advance and retreat are divided/closed a floodgate, described choosing mutually device comprises bistable-state permanent magnet mechanism and yoke plate mechanism, bistable-state permanent magnet mechanism is three groups of electromagnetic mechanisms, each drive link fastens with yoke plate mechanism simultaneously or breaks away from when realizing three-phase circuit advance and retreat minute/close a floodgate or single-phase advance and retreat are divided/closed a floodgate, and single-phase advance and retreat are divided/closed a floodgate is to select phase in three-phase circuit cycle zone at zero point separately;
The benefit magnetic mechanism that each group electromagnetic mechanism of described bistable-state permanent magnet mechanism comprises deciliter electromagnet and is arranged at its inner chamber, this benefit magnetic mechanism consists of by permanent magnet and around thereon coil windings, mend the magnetic of magnetic mechanism and the magnetic homopolarity of permanent magnet, described coil windings is the benefit magnetic coil that twines in permanent magnet week side, and its two end electrodes is connected on the out control circuit.
Further, described choosing is installed mutually with the outer phase-controlled device of Shell of circuit breaker and is connected, and control it by the phase-controlled device and advance and retreat simultaneously minute/combined floodgate or single-phase advance and retreat divide/close a floodgate.
Further, described yoke plate mechanism comprises in the lump connecting plate and electromagnet, and connecting plate is provided with the bayonet socket of transmission rod with each group electromagnetic mechanism, should and connecting plate can move up and down to fasten simultaneously with each drive link or break away from, and and connecting plate by its oscilaltion of magnet control.
Further, housing one side opening is by end cap seal, also be provided with six outlet pole ports on the housing and by the control circuit end cap seal, the end cap of described housing one side and housing junction and six two-stage seal ring seals that outlet pole port junction all adopts to be made by unlike material.
Further, described housing be provided with the control circuit breaker drive link, it adopts the double-layer seal ring of unlike material to seal with the housing wall junction.
Further, at least one is cavity ring for described sealing ring, and sealing ring is rubber ring or the falope ring that unlike material is processed into.
Further, described inner walls is done texturing and is processed, and at inner walls and the solid sealing body insulating barrier of connector and thermal insulation layer, connector is positioned at the parts of housing for the bolt that is connected with three-phase circuit terminal post and end cap, under the constant prerequisite of breaker body, reduce the spacing of breaker body and shell, and then whole device volume is diminished.
The present invention adopts novel bistable state three-winding permanent magnet mechanism and yoke plate mechanism, synchronous make-break capacity is namely arranged, possess phase-splitting gating cutting capacity again, is equipped with reclosing controller and can be used as automatic circuit; Be equipped with intelligent controller and can be used as again demarcation switch.Simultaneously mechanism is packed in the SF6 gas tank, with pollution and the corrosion of avoiding external environment; Split the pass inner housing and do texturing and solid insulation processing, improve insulation property, dwindle volume of switch, outer connection part is done the double-layer seal processing inside the Pass splitting, and prolongs switch life, and permanent magnet is done reinforcement benefit magnetic, improves reliability; Realize non-maintaining, long-life, volume is little, lightweight, disjunction is strong, the function of optional phase break-make; Rated current reaches 25KA up to 1250A, drop-out current, reaches mechanical endurance 30000 times, and open and close times reaches 60 times, reaches for domestic like product is first, can satisfy the user demand at large load networking; But the phase-splitting gating is disconnected, reclosing, carry out fault location, relaying protection, remote monitoring and distant place communication, and intelligent management is realized distribution automation, intellectuality.
Description of drawings
Fig. 1 is structural entity figure of the present invention.
Fig. 2 is that the present invention selects phase mechanism Local map.
Fig. 3 is cutaway view of the present invention.
Fig. 4 is that housing end plug of the present invention is in conjunction with schematic diagram.
Fig. 5 is the local enlarged side views of the present invention's two sealing rings.
Embodiment
The invention will be further described below in conjunction with accompanying drawing:
Embodiment: see also Fig. 1 to Fig. 4, a kind of intelligent breaker with phase-selecting function comprises
One housing 1, the wiring terminal post 11,12,13 of the three-phase circuit that stretches out on the housing;
One choosing installs 2 mutually, it is arranged in the housing 1, this choosing is same time-division of device control circuit breaker three-phase circuit/combined floodgates or single-phase minute/combined floodgate mutually, described choosing mutually device comprises bistable-state permanent magnet mechanism 21 and yoke plate mechanism 22, bistable-state permanent magnet mechanism is three groups of electromagnetic mechanisms 211,212,213, each drive link 2110,2120,2130 fastens with yoke plate mechanism 22 simultaneously or breaks away from when realizing three-phase circuit advance and retreat minute/close a floodgate or single-phase advance and retreat are divided/closed a floodgate, and single-phase advance and retreat are divided/closed a floodgate is to select phase in three-phase circuit cycle zone at zero point separately.
The present invention selects phase mechanism 2 and Shell of circuit breaker 1 outer phase-controlled device to be connected, and control it by the phase-controlled device and advance and retreat simultaneously minute/combined floodgate or single-phase advance and retreat divide/close a floodgate.
See also Fig. 1 and Fig. 2, yoke plate mechanism 22 comprises in the lump connecting plate 221 and electromagnet, and connecting plate is provided with the bayonet socket with each electromagnetic mechanism transmission rod, should and connecting plate can move up and down to fasten simultaneously with each drive link or break away from, and and connecting plate by its oscilaltion of magnet control.
See also Fig. 3, described electromagnetic mechanism comprises deciliter electromagnet 41 and is arranged at the benefit magnetic mechanism 42 of its inner chamber, and this benefit magnetic mechanism consists of by permanent magnet 421 and around thereon coil windings 422, mends the magnetic of magnetic mechanism and the magnetic homopolarity of permanent magnet.Described coil windings 422 is for twining in the benefit magnetic coil of permanent magnet week side, and its two end electrodes is connected on the out control circuit.Electromagnetic mechanism one end connects with vacuum interrupter 6 by insulated tension pole 5.
See also Fig. 4, described housing 1 side opening part is provided with end cap 14, and end cap and housing junction are provided with the first sealing ring 31 and the second sealing ring 32 forms the two-stage hermetically-sealed construction, and Fig. 5 is the local enlarged side view of two sealing rings.The end cap edge is along being circumferentially with some through holes, and housing 1 is provided with corresponding screwed hole, is provided with the second sealing ring pad between end cap and the housing connecting hole, and screw closes through end cap through hole and bolt successively and is anchored on the housing.The first sealing ring, the second sealing ring are arranged at the annular groove junction at end cap and shell nozzle edge, and above-mentioned seal ring set is in convex 141 roots of end cap.In addition, housing is provided with six outlet pole ports ( link terminal post 11,12,13 positions) and three-phase circuit end cap seal, described end cap and housing junction and six two-stage seal ring seals that outlet pole port junction all adopts to be made by unlike material.Housing be provided with control circuit breaker drive link, the double-layer seal ring sealing of unlike material is adopted in itself and housing wall junction, and above-mentioned sealing ring selects respectively unlike material to process, and material can be selected rubber or silica gel, purpose is to strengthen sealing effectiveness, increases the service life.
Inner walls of the present invention is done texturing and is processed, and is provided with insulated thermal insulating layer in inner walls, under the constant prerequisite of breaker body, reduces the spacing of breaker body and shell, and then whole device volume is diminished.
Key technology:
A, integrated design technology make permanent magnet mechanism, manual-operating mechanism and permanent magnetic controller more reliable, more effective coupling;
The designing and calculating allowance of B, permanent magnet mechanism and anti-clamping stagnation technique improve mechanical endurance;
The research and development of C, phase-selecting function, design;
The design of D, permanent magnetic controller and programming, manufacturing, the research and development five distant functions of intelligent recloser controller;
The research and development that E, breaking capacity develop skill, the research and development of insulated part small distance, anti-aging research;
The sealing research of F, SF6 aeration tank is Ji Fang Seepage leaks measure, miniaturization treatment technology;
G, control unit are fitted with hand-operating device, can carry out the locality operation, also can carry out the telemechanical operation.
2, innovative point of the present invention
Vacuum circuit-breaker of the present invention adopts novel bistable state three-winding permanent magnet mechanism and manual pull operation mechanism, synchronous make-break capacity is namely arranged, possess phase-splitting gating cutting capacity again, is equipped with reclosing controller and can be used as again automatic circuit; Simultaneously mechanism being packed into is filled with in the SF6 gas tank, with pollution and the corrosion of avoiding external environment, realizes non-maintaining, long-life, volume is little, lightweight, disjunction is strong, the function of optional phase; This novel evacuated switch rated current reaches 25KA up to 1250A, amount drop-out current, reaches mechanical endurance 30000 times; Reach for domestic like product is first, can satisfy the user demand at large load networking; This Novel vacuum circuit breaker distribution pressure, current sensor and electronic controller, but the phase-splitting gating is disconnected, reclosing, carry out fault location, relaying protection supervision and distant place communication, realizes distribution automation.This Novel vacuum circuit breaker will become and have electrical network renewal product leading domestic, international most advanced level.
This project innovation point is as follows:
1, joins simultaneously bistable state three-winding permanent magnet mechanism or electromagnetic mechanism and manual pull operation mechanism, synchronous make-break capacity is namely arranged, possess phase-splitting gating cutting capacity again; Be equipped with reclosing controller and can be used as again automatic circuit.So that equipment under any operating mode, all can operate, guarantee that equipment can round-the-clock running.
2, vacuum circuit-breaker (automatic circuit) installs SF6 gas inflated case additional, makes arc extinction performance more fully reliable, in the prolonged mechanical life-span, guarantees the equipment maintenance-free.
This project adopts airtight case structure, with cut-offfing in the casing that the unit vacuum interrupter places SF6 gas of vacuum circuit-breaker (automatic circuit).SF6 gas has good arc extinction performance, and arc voltage was low especially when electric arc burnt in SF6, and burning time is also short, and contact burning is slight.When hidden danger or defect leakage appear in the vacuum arc control device.When arc extinction performance was weakened, SF6 gas can replenish arc extinguishing, without fire hazard, reached the breaker arc extinguishing performance more fully reliable.Simultaneously operating mechanism is placed in the airtight SF6 aeration tank, because the good dielectric of SF6 gas tool, can prevent that locking mechanism and driving member are subject to the pollution of external environment and the phenomenon such as corrosion, lubrication failure, mechanical action are dumb, clamping stagnation, the prolonged mechanical life-span, can reach 30000 times, be suitable for frequent operation.
Project Product is trial-produceed successfully, and through the test authentication of Tohoku Electric Power electric apparatus quality testing laboratory, technical indicator reaches domestic and international related standards, and technical performance reaches leading domestic level; December 27 in 2010, Nikkei Fujian Province economic and commercial committee, electric power saving Industrial Development Bureau organized expert appraisal, formed expert opinion as follows:
This Novel vacuum circuit breaker reaches domestic like product top standard.The novel switched of alternative imported product.The production technology of company, tooling device, checkout equipment is complete, and it is all qualified that evaluation committee takes a sample test some projects in test group scene, reaches leading domestic level.
Project Product adopts advanced permanent-magnet operating mechanism, Stainless Steel Shell:
A, integrated design technology make permanent magnet mechanism, manual-operating mechanism and permanent magnetic controller more reliable, more effective coupling;
The designing and calculating allowance of B, permanent magnet mechanism and anti-clamping stagnation technique improve mechanical endurance;
The research and development of C, phase-selecting function, design;
The design of D, permanent magnetic controller and programming, manufacturing, the research and development five distant functions of intelligent recloser controller;
The research and development that E, breaking capacity develop skill, the research and development of insulated part small distance, anti-aging research;
The sealing research of F, SF6 aeration tank is Ji Fang Seepage leaks measure, miniaturization treatment technology;
G, control unit are fitted with hand-operating device, can carry out the locality operation, also can carry out the telemechanical operation.
The above record, only for utilizing the embodiment of this origination techniques content, modification, variation that any those skilled in the art use this creation to do all belong to the claim that this creation is advocated, and are not limited to those disclosed embodiments.
Claims (6)
1. intelligent breaker with phase-selecting function is characterized in that comprising:
One housing;
One choosing is device mutually, it is arranged in the housing, advance and retreat minute when control circuit breaker three-phase circuit is installed in this choosing mutually/close a floodgate or single-phase advance and retreat are divided/closed a floodgate, described choosing mutually device comprises bistable-state permanent magnet mechanism and yoke plate mechanism, bistable-state permanent magnet mechanism is three groups of electromagnetic mechanisms, each drive link fastens with yoke plate mechanism simultaneously or breaks away from when realizing three-phase circuit advance and retreat minute/close a floodgate or single-phase advance and retreat are divided/closed a floodgate, and single-phase advance and retreat are divided/closed a floodgate is to select phase in three-phase voltage cycle zone at zero point separately;
The benefit magnetic mechanism that each group electromagnetic mechanism of described bistable-state permanent magnet mechanism comprises deciliter electromagnet and is arranged at its inner chamber, this benefit magnetic mechanism consists of by permanent magnet and around thereon coil windings, mend the magnetic of magnetic mechanism and the magnetic homopolarity of permanent magnet, described coil windings is the benefit magnetic coil that twines in permanent magnet week side, and its two end electrodes is connected on the out control circuit.
2. the intelligent breaker with phase-selecting function according to claim 1 is characterized in that: described choosing is installed mutually with the outer phase-controlled device of Shell of circuit breaker and is connected, and control it by the phase-controlled device and advance and retreat simultaneously minute/combined floodgate or single-phase advance and retreat divide/close a floodgate.
3. the intelligent breaker with phase-selecting function according to claim 1, it is characterized in that: described yoke plate mechanism comprises in the lump connecting plate and electromagnet, and connecting plate is provided with the bayonet socket of organizing the transmission rod of electromagnetic mechanism with each, should and connecting plate can move up and down to fasten simultaneously with each drive link or break away from, and and connecting plate by its oscilaltion of magnet control.
4. the intelligent breaker with phase-selecting function according to claim 1, it is characterized in that: housing one side opening is by end cap seal, also be provided with six outlet pole ports on the housing and by the control circuit end cap seal, the end cap of described housing one side and housing junction and six two-stage seal ring seals that outlet pole port junction all adopts to be made by unlike material.
5. the intelligent breaker with phase-selecting function according to claim 4 is characterized in that: at least one is cavity ring described sealing ring, and sealing ring is rubber ring or the falope ring that unlike material is processed into.
6. the intelligent breaker with phase-selecting function according to claim 1 is characterized in that: described inner walls is done texturing and is processed, and is provided with the solid insulation thermal insulation layer in inner walls and connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110020400 CN102064038B (en) | 2011-01-18 | 2011-01-18 | Intelligent circuit breaker with phase selection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110020400 CN102064038B (en) | 2011-01-18 | 2011-01-18 | Intelligent circuit breaker with phase selection function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102064038A CN102064038A (en) | 2011-05-18 |
| CN102064038B true CN102064038B (en) | 2013-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110020400 Expired - Fee Related CN102064038B (en) | 2011-01-18 | 2011-01-18 | Intelligent circuit breaker with phase selection function |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104517777B (en) * | 2013-09-30 | 2016-05-25 | 景德镇景光精盛电器有限公司 | Any phase-change switch of a kind of permanent magnet vacuum |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2671111Y (en) * | 2003-12-29 | 2005-01-12 | 湖南电器研究所 | Separated permanent magnetic vacuum breaker |
| CN2859791Y (en) * | 2006-01-06 | 2007-01-17 | 湛江高压电器有限公司 | Outdoor high-voltage AC vacuum breaker |
| CN200944370Y (en) * | 2006-09-18 | 2007-09-05 | 河南森源电气股份有限公司 | Double sealing structure for sulfur hexafluoride breaker |
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2011
- 2011-01-18 CN CN 201110020400 patent/CN102064038B/en not_active Expired - Fee Related
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Granted publication date: 20130410 Termination date: 20190118 |