CN204669084U - A kind of induction energy fetching formula outdoor intelligent breaker - Google Patents
A kind of induction energy fetching formula outdoor intelligent breaker Download PDFInfo
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- CN204669084U CN204669084U CN201520356947.6U CN201520356947U CN204669084U CN 204669084 U CN204669084 U CN 204669084U CN 201520356947 U CN201520356947 U CN 201520356947U CN 204669084 U CN204669084 U CN 204669084U
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Abstract
The utility model provides a kind of induction energy fetching formula outdoor intelligent breaker, comprise breaker body, described body is arranged power module, control module and sampling module, described control module is connected with power module respectively with described sampling module, described control module comprises singlechip controller, signal processing module and intelligent drives controller, is connected between described control module with described sampling module by transport module; Described power module comprises induction energy fetching device and batteries.This device can realize cut-offfing line load and isolated fault function, realizes control operation on the spot and realizes remote control operation by the instruction of front-end acquisition device receiving system; Performance data collection can not only be completed, i.e. the data such as Real-time Collection circuit three-phase current, voltage, circuit-breaker status; Long-range fault alarm can also be realized, by detection line phase fault, single phase ground fault send fault message to automation main website.
Description
Technical field
The utility model relates to outdoor breaker equipment technical field, particularly relates to a kind of induction energy fetching formula outdoor intelligent breaker.
Background technology
Along with the progress of expanding economy, society, the raising of science and technology and the level of IT application, the exploitation of the energy, the coordinated development of electrical network are faced with new problem and new challenge.Rely on present information, communication and control technology, improve the trend that electrical network intelligent level is future development.For this reason, each power supply enterprise all accelerates the step generation of electric network information, automation, interactive construction, dragon its in distribution network automated, upgrading work is very urgent.
In the construction of distribution automation system, the low-tension supply problem of automation equipment is a large bottleneck of lines escalation transformation always; Conventional scheme electromagnetic potential transformer power taking, in engineering pass is executed, need independent lifting, wiring, both increased engineering construction amount, easily there is wiring error in sky again; Also have scheme to be utilize high-tension current inductor or solar panel power taking, but this scheme may be subject to the impact of weather and load variations in actual use, power supply supply is unstable, limits the development of power distribution automation.
Current general outdoor primary cut-out is formed by normal circuit breaker, controller, power transformer, the switch of this pattern, during the control wiring of power transformer first and second terminal box, controller is all exposed to outdoor severe cold, extremely hot, strong wind, thunderstorm, failure rate is high, poor reliability.During conducting transmission line maintenance, need divide-shut brake manually, automaticity is low, is difficult to the basic demand reaching intelligent grid.When after 10KV line outage, when comprising the transient fault that some cause due to weather, passage reason, also must carry out artificial inspection and carry out the localization of faults and fault type carries out malfunction elimination, then manual reclosing is carried out, restore electricity, the shortcoming of this troubleshooting pattern is that the handling failure time is longer, and economic benefit and social benefit are not mated, and limit the development of distribution automation.
So outdoor high voltage circuit breaker, as one of control and protection equipment most important in electric power system, is faced with and gets source inconvenience, high-tension current inductor and easily open by mistake the shortcomings such as road, breaking-closing operating driving mechanism resistance to impact are weak; If reequiped on the basis of plain edition outdoor vacuum circuit breaker merely, just need to install the equipment such as power subsystem, current transformer, automation data interface and front-end acquisition device additional, the number of devices related to is more, organizes and coordinates complexity, and in-site installation quantities is large.
Application number is that the utility model of 200920277443.X provides a kind of outdoor permanent magnetic high-voltage possessing manual rapid closing function, the closing operation device comprising case shell and be connected with the main shaft arranged in case shell, manual switching-off device, vacuum assistant switch and vacuum arc-extinguishing device, described closing operation device is manual rapid closing operating means, comprise power input mechanism, by the transmission mechanism that bearing is connected with power input mechanism, the driving mechanism be connected by bearing with transmission mechanism and stored energy mechanism, wherein, driving mechanism is connected with described main shaft and stored energy mechanism respectively, power input mechanism is connected to resetting device, transmission mechanism is connected to solid force mechanisms.The utility model has manual rapid closing operating means; can on-load closing by hand; and when without operating power; also electric current three-stage protection function can be realized; therefore the utility model meets power system operation regulatory requirements completely; for realizing built on stilts distribution automation as early as possible, play positive facilitation.
Application number be 201020649867.7 utility model disclose a kind of outdoor high-voltage alternating-current vacuum breaker, comprise breaker body, be connected to the current transformer on breaker body and isolating switch, and voltage transformer, described voltage transformer and breaker body are arranged on same bearing, voltage transformer respectively by insulated cable connecting breaker body and current transformer, thus forms an organic whole.Described breaker body adopts the pole structure of three phase separation, is arranged on three-phase primary circuit in the insulating sleeve of each phase, single-phase when breaking down, and can not cause three-phase shortcircuit.Further, electric conductor is all arranged in described insulating sleeve, and insulation property improve greatly.Secondary connection is optimized, and former aviation socket is changed to terminal box, for ease of maintenaince, is more applicable to automation distribution.The utility model vibrational power flow is ingenious, and by outdoor voltage transformer and the integral formula structure of circuit breaker design, before solving, the power supply of circuit breaker distribution automation gathers a difficult problem.
In order to accelerate the paces that grid automation is built, reducing site operation amount, increasing work efficiency, in conjunction with power supply administration's power distribution network management work actual conditions, we need a kind of integrated tripper that can realize self-energizing, certainly monitoring, certainly control.
Utility model content
The purpose of this utility model is to solve the problems of the technologies described above, a kind of induction energy fetching formula outdoor intelligent breaker is provided, be mainly used in cut-offfing overload current, short circuit current and realizing line fault monitoring, judgement, process, volume is little, lightweight, facilitates site operation, I&M.
For achieving the above object, the technical scheme that the utility model adopts is: a kind of induction energy fetching formula outdoor intelligent breaker, comprise breaker body, described body is arranged power module, control module and sampling module, described control module is connected with power module respectively with described sampling module, described control module comprises singlechip controller, signal processing module and intelligent drives controller, is connected between described control module with described sampling module by transport module; Described power module comprises induction energy fetching device and batteries, and described induction energy fetching device comprises the rectification stable pressuring unit of plate condenser and connection thereof, and described plate condenser is arranged in the alternating electric field of high-voltage operation circuit.
Described signal processing module is arranged in circuit breaker base, the buck converter comprising low-voltage current mutual inductor and connect.
Described intelligent drives controller is arranged on the spring energy-storage operating mechanism of breaker body, comprise condenser voltage testing circuit and divide-shut brake control module, described divide-shut brake control module comprises storage capacitor and device for power switching, and described divide-shut brake control module is connected with sampling module.
Described sampling module comprises line current detection module, line voltage distribution detection module and on off state detection module.
Described transport module comprises serial interface unit, and described serial interface unit comprises RS485 bus.
Described breaker body periphery arranges isolating switch, and described body and described isolating switch arrange mechanical interlocks.
As the intelligent kernel parts of the outdoor open circuit supervising device of power distribution network, control module comprises singlechip controller, signal processing module and intelligent drives controller, wherein, singlechip controller comprises singlechip chip and data acquisition unit, realizes reception and the transmission of remote signal; Control command, parameter and drive singal Long-range links can be transferred to signal processing module and intelligent drives controller by singlechip controller.
Signal processing module is mainly in order to tackle normal circuit breaker when replacing device processed, likely there is the situation that Current Transformer Secondary is opened a way, at this moment current transformer primary current all becomes exciting current, the magnetic flux density of iron core is made sharply to increase, thus induce the induced potential up to thousands of volt in secondary winding, danger may be caused to operating personnel, the utility model device is through safety and Protection, the outlet of all current transformers all have passed through the two times transfer process of low-voltage current mutual inductor and buck converter in base, thoroughly can avoid the problem of the mutual device second open circuit of electric current, ensure the safety of mounting operator.
Intelligent drives controller is mainly used in performance and the voltage of monitoring breaker energy storage capacitor, when voltage is lower than preset value, by power module be capacitor charging, otherwise then stop charging, monitor electrical network parameter and circuit-breaker status simultaneously, corresponding parameter display is exported, be convenient between open circuit supervising device through the interconnected and compositing area network of transmission, in the network by the host computer interface of Surveillance center control circuit breaker point, close a floodgate, the operation conditions of each circuit breaker in monitoring network simultaneously.
Open circuit supervising device of the present utility model is compared to traditional distribution primary cut-out, by breaker body, get energy unit, measuring unit and front-end acquisition device etc. have carried out integrated design, energy taking device provides low-voltage supply, current transformer gathers current signal, cable communication line input front end harvester is passed through together with breaker control signal after two times transfer, front-end acquisition device is after signal filtering process, by communication module, signal is reached system background, as line failure, front-end acquisition device can control circuit breaker trip according to predetermined control strategy, isolated fault, also receive Background control instruction by front-end acquisition device and breaking-closing operating is carried out to circuit breaker.
The beneficial effects of the utility model are mainly in the following aspects:
1) carry high pressure energy taking device, provide low-tension supply for each element of device runs.
By installing high-voltage capacitance energy taking device on circuit breaker base additional, make circuit breaker integrated with energy taking device.Energy taking device adopts circuit dividing potential drop way to take power, or induction energy fetching mode, not by weather, load current variable effect, all can provide reliably working power supply for power unit, reliable and stable.
2) facilitate in-site installation, stop field connection mistake.
Adopt sealing type overhead transmission line vacuum circuit-breaker, volume is little, lightweight, does not need to connect other supply unit, once lifting circuit breaker can construct complete, short construction period, reduces interruption duration: all secondary lines complete in factory, reduces the risk of site operation wiring error.
3) Real-time Collection function summation current transformer open circuit safety and Protection is possessed.
The real-time detection line load current of sampling module, voltage, circuit-breaker status and the information such as single phase ground fault, phase fault, can sweep receipts system command, the long-range control carrying out circuit breaker; The outlet of all high-tension current inductors all have passed through the conversion process of two-level current instrument transformer in base, signal processing module is responsible for current transformer signal, be converted to secondary weak electric signal, high-tension current inductor can be thoroughly avoided to open a way the security incident caused, when front-end acquisition device is not installed, do not need to consider that high-tension current inductor opens by mistake the risk on road, reduce site operation misoperation fault.
4) possess and isolate cut-off point as seen.
This device, by installing switch isolation switch additional, defines the combined electrical apparatus of vacuum circuit-breaker and isolating switch, adds and isolate cut-off point as seen, and has reliable chain operation, improves functional reliability and the security performance of this device.
The utility model can out of doors AC outage when, energy storage device is utilized to switch fast, fault message is sent to upper level monitor supervision platform in time, and under the condition of satisfied telegram in reply, safe power transmission can be realized by Long-distance Control, reduce interruption duration to greatest extent, solve the failure rate that common on-pole switch long term exposure causes out of doors high, poor reliability problem, economic benefit and good service social benefit obvious, simultaneously for distribution runs automation and specialization provides effective supplementary means, improve production management level.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model device.
Fig. 2 is the voltage stabilizing circuit figure that the utility model installation's power source gets energy module.
Fig. 3 is the condenser voltage testing circuit figure of the utility model device intelligent drives controller.
Embodiment
As shown in Figure 1 to Figure 3, a kind of induction energy fetching formula outdoor intelligent breaker, comprise breaker body, body is arranged power module, control module and sampling module, control module is connected with power module respectively with sampling module, control module comprises singlechip controller 13, signal processing module 14 and intelligent drives controller 15, is connected between control module with sampling module 16 by transport module; Power module comprises induction energy fetching device and batteries 17, the rectification stable pressuring unit 2 that induction energy fetching device comprises plate condenser 1 and connects, and plate condenser is arranged in the alternating electric field of high-voltage operation circuit.
Signal processing module is arranged in circuit breaker base, the buck converter 12 comprising low-voltage current mutual inductor 11 and connect, the process output signal of energy taking device and the output signal of high-tension current inductor.
Intelligent drives controller is arranged on spring energy-storage operating mechanism, comprises condenser voltage testing circuit 3 and divide-shut brake control module, and divide-shut brake control module comprises storage capacitor 4 and device for power switching 5, and divide-shut brake control module is connected with sampling module.
Sampling module comprises line current detection module 6, line voltage distribution detection module 7 and on off state detection module 8.
Transport module 9 comprises serial interface unit, and serial interface unit comprises RS485 module.
Breaker body periphery arranges isolating switch 10, and body and isolating switch arrange mechanical interlocks.
In the specific implementation, open circuit supervising device adopts three-phase column support type structure, there is break performance reliable and stable, without burning and explosion hazard, safety, non-maintaining, volume is little, the features such as lightweight and long service life, adopt full-closed structure, good seal performance, there is protection against the tide, anti-condensation performance, be adapted to severe cold or the use of hot humid area especially, three-phase pillar inside increases full skirt, cut off the direct range of primary circuit and casing, creepage distance is increased greatly, the outsourcing of outside primary line terminal increases climbs full skirt, outside fracture creepage distance is made to increase to more than 600MM, meet height above sea level less than 3500 meters area to use, install outdoor disconnector additional and circuit breaker forms integration, circuit breaker and isolating switch have reliable mechanical interlocks.
Power module comprises energy taking device and batteries, and energy taking device is induction energy fetching device, comprises the rectification stable pressuring unit of plate condenser and connection thereof, and plate condenser is arranged in the alternating electric field of high-voltage operation circuit.Induction energy fetching technology is applied in device, on the one hand, decrease complexity and the degree of difficulty of supply source, can make rational use of resources, on the other hand, in the power supply unit of induction energy fetching, add rectification stable pressuring unit, rectification stable pressuring unit comprises rectifier and reducing transformer, this power conversion, by collecting the high-tension line coupling energy produced in electric field environment, is become the output of well-tuned, for power supply component assembly provides energy by low-loss rectifier and efficient voltage reducing type transducer; Voltage regulation unit can effectively be avoided circuit element to get under big current absorbing energy surplus and scaling loss power circuit by unit; reduce the caloric value of power supply; and unnecessary absorbing energy effectively is stored; rectification stable pressuring unit can also connect protection electric capacity; can prevent getting energy unit saturated, and enable to get and can send momentary high power by unit, strengthen draw-out power supply carrying load ability and adaptive capacity.
As the intelligent kernel parts of the outdoor open circuit supervising device of power distribution network, control module comprises singlechip controller, signal processing module and intelligent drives controller, wherein, singlechip controller comprises singlechip chip and data acquisition unit, singlechip chip is as microprocessor, need that there is higher performance, to realize the real-time measurement of external signal and to reach sensitive control ability.Therefore can adopt classics 8 single-chip microcomputer PICl6F877 of Microchip company, its inside is changed with several functions module: A/D, and PWM controls, timer etc., be a kind of numerous function i ntegration to chip together, realize hardware circuit software implementation, reduce costs, improve system reliability.
Signal processing module is mainly in order to tackle normal circuit breaker when replacing device processed, likely there is the situation that Current Transformer Secondary is opened a way, at this moment current transformer primary current all becomes exciting current, the magnetic flux density of iron core is made sharply to increase, thus induce the induced potential up to thousands of volt in secondary winding, danger may be caused to operating personnel, the utility model device is through safety and Protection, the outlet of all current transformers all have passed through the two times transfer process of low-voltage current mutual inductor and buck converter in base, thoroughly can avoid the problem of the mutual device second open circuit of electric current, ensure the safety of mounting operator.
Intelligent drives controller mainly comprises voltage detection module, storage capacitor and device for power switching, and for monitoring performance and the voltage of breaker energy storage capacitor, be in the operating mechanism of primary cut-out, condenser voltage testing circuit comprises linear optical coupling; Under linear optical coupling is operated in photovoltage pattern, the linearity can reach 12 precision, and operating frequency is 40kHz to the maximum.Voltage on energy storage capacitor, by electric resistance partial pressure, obtains the voltage signal that amplitude is less than 15V, and this signal is input linear light-coupled isolation hop after follower drives.First the voltage signal exported at secondary side passes through RC circuit filtering high-frequency signal, then through ferrite bean L2 filtering digital noise, finally inputs singlechip chip; Device for power switching is insulated gate bipolar transistor, and its operation principle is: driver carries out Real-Time Monitoring to storage capacitor voltage.If undertension, charge: the separating brake that control far away/nearly control or host computer transmit if receive or reclosing command, first judge whether the whether correct condenser voltage in the position of circuit breaker reaches preset value.Conform to, drive that IGBT carries out point, closing operation.When arrival point, closing position or to have exceeded point, the combined floodgate predetermined registration operation time then turns off IGBT immediately, stops dividing, closing operation, circuit breaker position is uploaded to upper control module.So this special working mechanism requires that real-time is stronger, particularly dividing, in making process.Accurate commutation control need be realized, in practical operation, when voltage is lower than preset value, be capacitor charging by power module, otherwise then stop charging, monitor electrical network parameter and circuit-breaker status simultaneously, corresponding parameter display is exported, be convenient to through the interconnected and compositing area network of transmission between open circuit supervising device, in the network by the host computer interface of Surveillance center control circuit breaker point, close a floodgate, the operation conditions of each circuit breaker in monitoring network simultaneously.
Transport module comprises serial communication unit, serial communication unit comprises RS485 serial communication interface circuit, when circuit breaker forms monitoring circuit breaker network, device will upload on middle control main frame the status signal of the parameter of electrical network, capacitance voltage value, circuit breaker in time, because distance is larger, so industrial conventional Rs-485 can be adopted to communicate, there is transmission range length, speed is higher, level capacitive is good, flexible and convenient to use, with low cost and reliability advantages of higher, all have a wide range of applications in many fields such as intelligent management, On-line Control, geological prospectings.
Open circuit supervising device of the present utility model is compared to traditional distribution primary cut-out, by breaker body, get energy unit, measuring unit and front-end acquisition device etc. have carried out integrated design, energy taking device provides low-voltage supply, current transformer gathers current signal, cable communication line input front end harvester is passed through together with breaker control signal after two times transfer, front-end acquisition device is after signal filtering process, by communication module, signal is reached system background, as line failure, front-end acquisition device can control circuit breaker trip according to predetermined control strategy, isolated fault, also receive Background control instruction by front-end acquisition device and breaking-closing operating is carried out to circuit breaker.
Claims (6)
1. an induction energy fetching formula outdoor intelligent breaker, comprise breaker body, it is characterized in that: described body is arranged power module, control module and sampling module, described control module is connected with power module respectively with described sampling module, described control module comprises singlechip controller, signal processing module and intelligent drives controller, is connected between described control module with described sampling module by transport module; Described power module comprises induction energy fetching device and batteries, and described induction energy fetching device comprises the rectification stable pressuring unit of plate condenser and connection thereof, and described plate condenser is arranged in the alternating electric field of high-voltage operation circuit.
2. a kind of induction energy fetching formula outdoor intelligent breaker as claimed in claim 1, is characterized in that: described signal processing module is arranged in circuit breaker base, the buck converter comprising low-voltage current mutual inductor and connect.
3. a kind of induction energy fetching formula outdoor intelligent breaker as claimed in claim 1, it is characterized in that: described intelligent drives controller is arranged on the spring energy-storage operating mechanism of breaker body, comprise condenser voltage testing circuit and divide-shut brake control module, described divide-shut brake control module comprises storage capacitor and device for power switching, and described divide-shut brake control module is connected with sampling module.
4. a kind of induction energy fetching formula outdoor intelligent breaker as claimed in claim 1, is characterized in that: described sampling module comprises line current detection module, line voltage distribution detection module and on off state detection module.
5. a kind of induction energy fetching formula outdoor intelligent breaker as claimed in claim 1, it is characterized in that: described transport module comprises serial interface unit, described serial interface unit comprises RS485 bus.
6. a kind of induction energy fetching formula outdoor intelligent breaker as claimed in claim 1, it is characterized in that: described breaker body periphery arranges isolating switch, described body and described isolating switch arrange mechanical interlocks.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520356947.6U CN204669084U (en) | 2015-05-29 | 2015-05-29 | A kind of induction energy fetching formula outdoor intelligent breaker |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520356947.6U CN204669084U (en) | 2015-05-29 | 2015-05-29 | A kind of induction energy fetching formula outdoor intelligent breaker |
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| CN204669084U true CN204669084U (en) | 2015-09-23 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108879951A (en) * | 2018-06-29 | 2018-11-23 | 国网河南省电力公司平顶山供电公司 | A kind of high-voltage circuitbreaker realizing cyclization and determining |
| CN110323085A (en) * | 2019-06-18 | 2019-10-11 | 贵州电网有限责任公司 | A kind of isolation switch device with vacuum circuit breaker linkage separating brake |
| CN111105945A (en) * | 2018-10-26 | 2020-05-05 | 平高集团有限公司 | Control system for direct current switch cabinet |
-
2015
- 2015-05-29 CN CN201520356947.6U patent/CN204669084U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108879951A (en) * | 2018-06-29 | 2018-11-23 | 国网河南省电力公司平顶山供电公司 | A kind of high-voltage circuitbreaker realizing cyclization and determining |
| CN111105945A (en) * | 2018-10-26 | 2020-05-05 | 平高集团有限公司 | Control system for direct current switch cabinet |
| CN110323085A (en) * | 2019-06-18 | 2019-10-11 | 贵州电网有限责任公司 | A kind of isolation switch device with vacuum circuit breaker linkage separating brake |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150923 Termination date: 20160529 |