CN202405192U - Intelligent circuit breaker - Google Patents
Intelligent circuit breaker Download PDFInfo
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- CN202405192U CN202405192U CN2011205530275U CN201120553027U CN202405192U CN 202405192 U CN202405192 U CN 202405192U CN 2011205530275 U CN2011205530275 U CN 2011205530275U CN 201120553027 U CN201120553027 U CN 201120553027U CN 202405192 U CN202405192 U CN 202405192U
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- circuit breaker
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Abstract
The utility model provides an intelligent circuit breaker. The intelligent circuit breaker is characterized by comprising temperature detection elements, current transformers, vacuum degree detection elements, contact abrasion detection elements of vacuum arc extinguish chambers, a circuit breaker over-travel detection element and a movable contact inserting depth detection element which are connected with an intelligent control device through an optical cable; the temperature detection elements are arranged on surfaces of six movable contact contacting parts; three current transformers are connected with a lower contact arm of the circuit breaker in series; the vacuum degree detection elements are arranged on ceramic arms of three vacuum arc extinguish chambers; the contact abrasion detection elements of the vacuum arc extinguish chambers and the circuit breaker over-travel detection element are arranged on a shell at the lower side of an insulating pull rod; the movable contact inserting depth detection element is arranged on a framework of the circuit breaker; and the intelligent control device is arranged on a panel of the circuit breaker. The intelligent circuit breaker has the advantages of high intelligent degree, simple structure, convenience for operation and maintenance, low construction cost, reliability for operation and the like; and the intelligent circuit breaker can be widely applied to a 3-35-KV electrical power system for power generation, power transformation and power utilization enterprises and can replace all vacuum circuit breakers, oil circuit breakers and the like.
Description
Technical field
The utility model relates to circuit breaker, is a kind of intelligent breaker.
Background technology
Along with scientific technological advance and people to the high performance pursuit of electric product; That the research and development of high-voltage electrical apparatus product are also being followed always is non-maintaining, highly reliable, miniaturization, integrated, intelligentized principle; Serve as theme with the core devices of high-tech content and new technology, new technology, new material and to develop, and demonstrate the characteristics of some renewals.
Circuit breaker is the visual plant that plays control and protective effect in the power system operation; Also be unique equipment of realizing electric function with mechanical movement in the power transmission and transforming equipment; The primary substation in power plant during power supply is built, enterprises such as all kinds of transformer stations of power grid construction and power transmission engineering and metallurgy, mine, oil all need a large amount of high voltage switchgears.
The intellectuality of circuit breaker is the work of a update; It relates to the technological progress and the innovation and development in a lot of fields; Like aspects such as sensing technology, microelectric technique, computer technology, information technology and circuit breaker itself and operating mechanisms, need more the input and exploitation.But, can look forward to, along with the continuous development of intelligent electrical network, the intelligent breaker of superior performance can replace traditional circuit breaker at last, and is familiar with and likes by people.
To electric power system at present both at home and abroad to the demand of intelligent artifact with to the whole intelligentized prospects of following electric utility; The intelligent breaker of my company's independent research and production; This product can remedy circuit breaker parameters in running and change not known deficiency (as: contact contact temperature, arc control device vacuum degree, overtravel, the arc control device contact degree of wear, moving contact insertion depth etc.); Improve the circuit breaker operational reliability, avoided the generation of circuit breaker failure.
Intelligent breaker is applicable to the 3-35KV electric power system of generating, power transformation and electricity consumption enterprise, products such as alternative all vacuum circuit-breakers, oil circuit breaker.
The utility model content
The utility model technical problem to be solved is; Overcome existing circuit breaker only after fault takes place just by deficiency that the people knew; Provide that a kind of intelligent degree is high, simple in structure, convenient operating maintenance, cost be low, reliable, the intelligent breaker of applied range.
Solving the technical scheme that its technical problem adopts is: a kind of intelligent breaker; It is characterized in that: it comprises that detector unit, current transformer, vacuum degree detecting element, vacuum arc-extinguishing chamber contact abrasion detection element, circuit breaker overtravel detecting element and moving contact insertion depth detecting element are connected with intelligence controlling device through optical cable; Described detector unit is arranged on the surface of six moving contact contacts site; Described three current transformers are connected under the circuit breaker on the contact arm; Described vacuum degree detecting element is arranged on three vacuum interrupter pottery arms; Described vacuum arc-extinguishing chamber contact abrasion detection element and circuit breaker overtravel detecting element all are arranged on the housing of insulated tension pole downside; Described moving contact insertion depth detecting element is arranged on the circuit breaker frame, and described intelligence controlling device is arranged on the circuit breaker panel.
Described intelligence controlling device comprises current transformer Ia, Ib, Ic; The mutually upper and lower contact Ta1 of the A of moving contact, Ta2, the mutually upper and lower contact Tb1 of B, Tb2, the mutually upper and lower contact Tc1 of C, Tc2 and A, B, C be separately vacuum degree and 16 road analog signalses input of sending into connected multi-analog collection and modulate circuit mutually; The function of said multi-analog collection and modulate circuit is; Adopt model TR1102-1C detection to press the output type voltage changer and detect respectively with model TR0102-1C voltage output type power pack measuring voltage current signal; And amplify the standard signal of nursing one's health through over commutation, filtering, computing and send into the model LPC2157 single-chip microcomputer that is connected, model LPC2157 single-chip microcomputer function is analog acquisition, data preliminary treatment, temperature acquisition, liquid crystal display, parameter configuration, communication and command process; Model LPC2157 single-chip microcomputer is connected with model MAX232 chip for driving chip, model RS485 bus respectively through coupled two model TLP52 optocouplers that connect, and model RS485 bus is connected with the long distance control system of uploading; With circuit breaker run location, circuit-breaker testing position, breaker closing state, breaker open operation state, breaker closing signal, breaker open operation signal, circuit breaker A phase overtravel, circuit breaker B phase overtravel, circuit breaker C phase overtravel, contact of breaker insertion depth, vacuum interrupter A wear and tear mutually, vacuum interrupter B weares and teares mutually, vacuum interrupter C wearing and tearing mutually, mechanical endurance, 48 way switch amount signals are sent into model EPM240T100 switch control chip through solid-state relay or optical cable; The 24 way switch amounts output signal of model EPM240T100 switch control chip is indicated warning through switching value output driving circuit control circuit breaker reverse relay, circuit breaker forward relay, breaker closing coil, switching winding, test position indication, run location indication, transition alarm, overtemperature alarm, vacuum degree alarm, overtravel alarm, the alarm of contact insertion depth, anti-jump alarm, broken string alarm, overtime alarm, contact wearing and tearing alarm and life-span alarm; Model EPM240T100 switch control chip is connected the monitoring of completion status amount and the realization of logic function through model 6N137 high speed photo coupling with model LPC2157 single-chip microcomputer.
The intelligent breaker of the utility model compared with prior art; Because the detector unit that adopts, current transformer, vacuum degree detecting element, vacuum arc-extinguishing chamber contact abrasion detection element, circuit breaker overtravel detection unit and moving contact insertion depth detecting element are contactless element and match with intelligence controlling device; Both avoided because of circuit breaker is in operation because parameter changes the generation of caused various faults, avoided again because circuit breaker failure causes power failure and because the generation of great production and the equipment breakdown of causing that have a power failure to electric power system.It is high that this product has intelligent degree, simple in structure, operation, easy to maintenance, and advantage such as cost is low, and is reliable, adaptable across the 3-35KV electric power system of generating, power transformation and electricity consumption enterprise, and alternative all vacuum circuit-breakers, oil circuit breaker etc.
Description of drawings
Fig. 1 looks sketch map for the structure master of intelligent breaker of the present invention;
Fig. 2 looks sketch map for the right side of Fig. 1;
Fig. 3 is analog signals 41 block diagrams of intelligence controlling device 7;
Fig. 4 is switching value signal 42 block diagrams of intelligence controlling device 7;
Fig. 5 is the schematic block circuit diagram of intelligence controlling device 7 among Fig. 3;
Fig. 6 is indication alarm 44 block diagrams;
Fig. 7 is intelligence controlling device 7 multi-analog collections and modulate circuit 11 schematic diagrams;
Fig. 8 is model LPC2157 single-chip microcomputer 40 structural representations of intelligence controlling device 7.
Among the figure; 1 detector unit, 2 current transformers, 3 vacuum degree detecting elements, 4 vacuum arc-extinguishing chamber contact abrasion detection elements, 5 circuit breaker overtravel detecting elements, 6 moving contact insertion depth detecting elements; 7 intelligence controlling devices, 8 circuit breaker panels, 9 circuit breaker frame, 10 long distance control systems, 11 multi-analog collection and modulate circuits; 12 solid-state relays or optical cable, 13 switching value output driving circuits, 14 circuit breaker reverse relay, 15 circuit breaker forward relay, 16 breaker closing coils; 17 switching windings, the indication of 18 test positions, the indication of 19 run locations, 20 transition alarm, the alarm of 21 overtemperatures; The alarm of 22 vacuum degrees, the alarm of 23 overtravels, the alarm of 24 contact insertion depths, 25 anti-jump alarms, 26 broken string alarms; 27 overtime alarms, 28 contacts wearing and tearing alarm, the alarm of 29 life-spans, contact arm under 31 circuit breakers, 32 vacuum interrupters pottery arm; 33 housings, 40 model LPC2157 single-chip microcomputers, 41 analog signalses, 42 switching value signals, 44 indication alarms.
Embodiment
See figures.1.and.2; Intelligent breaker of the present invention comprises that detector unit 1, current transformer 2, vacuum degree detecting element 3, vacuum arc-extinguishing chamber contact abrasion detection element 4, circuit breaker overtravel detecting element 5 and moving contact insertion depth detecting element 6 are connected with intelligence controlling device 7 through optical cable; Described detector unit 1 is arranged on the surface of six moving contact contacts site, also is the mutually upper and lower contact Ta1 of A, Ta2, the mutually upper and lower contact Tb1 of B, Tb2, the mutually upper and lower contact Tc1 of C, the Tc2 of moving contact; Described three current transformers 2 are connected under the circuit breaker on the contact arm 31, also are current transformer Ia, Ib, Ic; Described vacuum degree detecting element 3 is arranged on three vacuum interrupter pottery arms 32, also is on A, B, the C three-phase vacuum interrupter pottery arm 32; Described vacuum arc-extinguishing chamber contact abrasion detection element 4 all is arranged on the housing 33 of insulated tension pole downside with circuit breaker overtravel detecting element 5; Described moving contact insertion depth detecting element 6 is arranged on the circuit breaker frame 9, and described intelligence controlling device 7 is arranged on the circuit breaker panel 8.
With reference to Fig. 3-Fig. 8; Described intelligence controlling device 7 comprises current transformer Ia, Ib, Ic; The mutually upper and lower contact Ta1 of the A of moving contact, Ta2, the mutually upper and lower contact Tb1 of B, Tb2, the mutually upper and lower contact Tc1 of C, Tc2 and A, B, C be separately vacuum degree and 16 road analog signalses 41 input of sending into connected multi-analog collection and modulate circuit 11 mutually; The function of said multi-analog collection and modulate circuit 11 is; Adopt model TR1102-1C detection to press the output type voltage changer and detect respectively with model TR0102-1C voltage output type power pack measuring voltage current signal; And send in 16 road AD converters that the model LPC2157 single-chip microcomputer that is connected carries through the standard signal that over commutation, filtering, computing amplify conditioning, model LPC2157 single-chip microcomputer is accomplished analog acquisition, data preliminary treatment, temperature acquisition, liquid crystal display, parameter configuration, communication and command process; Model LPC2157 single-chip microcomputer is connected with model MAX232 chip for driving chip, model RS485 bus respectively through coupled two model TLP52 optocouplers that connect, and model RS485 bus is connected with the long distance control system of uploading 10; With circuit breaker run location, circuit-breaker testing position, breaker closing state, breaker open operation state, breaker closing signal, breaker open operation signal, circuit breaker A phase overtravel, circuit breaker B phase overtravel, circuit breaker C phase overtravel, contact of breaker insertion depth, vacuum interrupter A wear and tear mutually, vacuum interrupter B weares and teares mutually, vacuum interrupter C wearing and tearing mutually, mechanical endurance, 48 way switch amount signals 42 are connected with model EPM240T100 switch control chip through solid-state relay or optical cable 12; The 24 way switch amounts output signal of model EPM240T100 switch control chip is controlled circuit breaker reverse relay 14, circuit breaker forward relay 15, breaker closing coil 16, switching winding 17 and indication through switching value output driving circuit 13 and is reported to the police 44; Indication is reported to the police and 44 to be comprised test position indication 18, run location indication 19, transition alarm 20, overtemperature alarm 21, vacuum degree alarm 22, overtravel alarm 23, contact insertion depth alarm 24, anti-jump alarm 25, broken string alarm 26, overtime alarm 27, contact wearing and tearing alarm 28 and life-span alarm 29; Model EPM240T100 switch control chip is connected the monitoring of completion status amount and the realization of logic function through model 6N137 high speed photo coupling with model LPC2157 single-chip microcomputer 40.
Described intelligence controlling device 7 comprises model LPC2157 single-chip microcomputer 40 as core component, and the function of model LPC2157 single-chip microcomputer comprises: the output of the realization of control command, monitoring breaker parameters of electric power, temperature acquisition, protection control algolithm, the state of sense switch amount, switching value control and with communicating by letter of long distance control system 10 etc.For guaranteeing control unit reliability and reaction speed, this embodiment has adopted the system configuration of CPLD+ARM.Adopt model LPC2157 single-chip microcomputer can make full use of the advantage of powerful peripheral functionality of this CPU and embedded OS, model LPC2157 single-chip microcomputer is mainly accomplished analog acquisition, data preliminary treatment, temperature acquisition, liquid crystal display, parameter configuration, communication and command process; Simultaneously for the fast detecting of state and the reliability of output execution signal; By the monitoring of CPLD model EPM240T100 switch control chip completion status amount and the realization of logic function, with the output and the external high voltage circuit control of the communicating by letter of ARM, status signal.The said multi-analog collection of intelligence controlling device 7 and modulate circuit 11, MODBUS bus communication drive, LCD drives and the CPLD internal circuit is the circuit that those skilled in the art were familiar with.The collection of 48 way switch amounts adopts CPLD to realize.Because jitter problem often appears in switching value; So the modulate circuit that 48 way switch amount signals pass through separately is connected with model EPM240T100 switch control chip; In modulate circuit, adopt the peak voltage in the electric capacity filtering input signal; Be primarily aimed at High-frequency Interference, and adopt voltage stabilizing didoe to be used for further filtering interference signals, be primarily aimed at low-frequency disturbance.In order to prevent that external signal from influencing the work of internal circuit, adopt high speed photo coupling 6N137 that LPC2157 and physical bus are isolated.The chip for driving of RS232 is selected the U.S. letter model MAX232 of company chip for driving for use; And the chip for driving of RS485 adopts SNLBC184; In order to prevent the entering of interference signal, adopt optocoupler TLP521 in the design simultaneously to isolating between model LPC2157 single-chip microcomputer and RS232 and the RS485 bus driver chip.
The detector unit 1 of the intelligent breaker of the utility model, current transformer 2, vacuum degree detecting element 3, vacuum arc-extinguishing chamber contact abrasion detection element 4, circuit breaker overtravel detecting element 5 and moving contact insertion depth detecting element 6 detected next signals are transferred to intelligence controlling device 7 through optical cable; After intelligence controlling device 7 comparative analysiss, send alarm signal and trip signal respectively.Intelligence controlling device 7 is when sending alarm signal and trip signal; Also this signal is uploaded to long distance control system 10 through the RS485 communication interface; Be total Control Room supervisory control system, thereby reached circuit breaker protection and the effect of diagnosis voluntarily automatically in running.
The unit that intelligent breaker adopted of the utility model, device are easy to get, and detector unit 1, current transformer 2, vacuum degree detecting element 3, vacuum arc-extinguishing chamber contact abrasion detection element 4, circuit breaker overtravel detecting element 5, moving contact insertion depth detecting element 6 are the commercially available prod.Wherein the unit of intelligence controlling device 7, device also are the commercially available prod.
The intelligent breaker of the utility model in use; Detector unit 1, current transformer 2, vacuum degree detecting element 3, vacuum arc-extinguishing chamber contact abrasion detection element 4, circuit breaker overtravel detecting element 5 and moving contact insertion depth detecting element 6 are connected with intelligence controlling device 7 through optical cable, and intelligence controlling device 7 is connected with long distance control system 10.7 of intelligence controlling devices show circuit breaker each item operational factor during operate as normal; As: electric current, temperature, vacuum degree etc.; When parameter during greater than set point, intelligence controlling device will send alarm and trip signal, and fault-signal is stored; The user can transfer at any time, after fault is eliminated, can reset at control panel or total Control Room.The back device that resets will recover normal.
The intelligent breaker of the utility model has: rapidity adds the effect of reliability; Make the interior parameters of circuit breaker all in the monitoring state; No matter be contact of breaker temperature or the indoor vacuum degree of vacuum extinction, and all parameters such as the indoor contact degree of wear of vacuum extinction all are among the monitoring, surpass set point as long as parameters changes; Device itself is just through voice, light mode notifying operation personnel; Thereby avoided only breaking down the back in maintenance or replacing phenomenon, prolonged the useful life of circuit breaker greatly, stopped to give the big economic loss of tool that the user caused because of the generation of circuit breaker internal fault at circuit breaker.
The intelligent breaker of the utility model can be predicted the fault that takes place possibly in advance; And, fault notify the user to carry out maintenance and repair ahead of time before taking place with the form of voice and light; If the user does not handle; When parameter reached set point, intelligence controlling device was out of service from being about to circuit breaker.Thereby avoided the generation of major accident.
The protective feature of the intelligent breaker of the utility model is determined by physical characteristic, does not exist mechanical tripping to do, and reliability is high.
Claims (2)
1. intelligent breaker; It is characterized in that: it comprises that detector unit, current transformer, vacuum degree detecting element, vacuum arc-extinguishing chamber contact abrasion detection element, circuit breaker overtravel detecting element and moving contact insertion depth detecting element are connected with intelligence controlling device through optical cable; Described detector unit is arranged on the surface of six moving contact contacts site; Described three current transformers are connected under the circuit breaker on the contact arm; Described vacuum degree detecting element is arranged on three vacuum interrupter pottery arms; Described vacuum arc-extinguishing chamber contact abrasion detection element and circuit breaker overtravel detecting element all are arranged on the housing of insulated tension pole downside, and described moving contact insertion depth detecting element is arranged on the circuit breaker frame, and described intelligence controlling device is arranged on the circuit breaker panel.
2. intelligent breaker according to claim 1; It is characterized in that: described intelligence controlling device comprises current transformer (Ia, Ib, Ic); The mutually upper and lower contact of the A of moving contact (Ta1, Ta2), the mutually upper and lower contact of B (Tb1, Tb2), the mutually upper and lower contact of C (Tc1, Tc2) and A, B, C be separately vacuum degree and 16 road analog signalses input of sending into connected multi-analog collection and modulate circuit mutually; The function of said multi-analog collection and modulate circuit is; Adopt model TR1102-1C detection to press the output type voltage changer and detect respectively with model TR0102-1C voltage output type power pack measuring voltage current signal; And amplify the standard signal of nursing one's health through over commutation, filtering, computing and send into the model LPC2157 single-chip microcomputer that is connected, model LPC2157 single-chip microcomputer function is analog acquisition, data preliminary treatment, temperature acquisition, liquid crystal display, parameter configuration, communication and command process; Model LPC2157 single-chip microcomputer is connected with model MAX232 chip for driving chip, model RS485 bus respectively through coupled two model TLP52 optocouplers that connect, and model RS485 bus is connected with the long distance control system of uploading; With circuit breaker run location, circuit-breaker testing position, breaker closing state, breaker open operation state, breaker closing signal, breaker open operation signal, circuit breaker A phase overtravel, circuit breaker B phase overtravel, circuit breaker C phase overtravel, contact of breaker insertion depth, vacuum interrupter A wear and tear mutually, vacuum interrupter B weares and teares mutually, vacuum interrupter C wearing and tearing mutually, mechanical endurance, 48 way switch amount signals are sent into model EPM240T100 switch control chip through solid-state relay or optical cable; The 24 way switch amounts output signal of model EPM240T100 switch control chip is indicated warning through switching value output driving circuit control circuit breaker reverse relay, circuit breaker forward relay, breaker closing coil, switching winding, test position indication, run location indication, transition alarm, overtemperature alarm, vacuum degree alarm, overtravel alarm, the alarm of contact insertion depth, anti-jump alarm, broken string alarm, overtime alarm, contact wearing and tearing alarm and life-span alarm; Model EPM240T100 switch control chip is connected the monitoring of completion status amount and the realization of logic function through model 6N137 high speed photo coupling with model LPC2157 single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205530275U CN202405192U (en) | 2011-12-27 | 2011-12-27 | Intelligent circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205530275U CN202405192U (en) | 2011-12-27 | 2011-12-27 | Intelligent circuit breaker |
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|---|---|
| CN202405192U true CN202405192U (en) | 2012-08-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205530275U Withdrawn - After Issue CN202405192U (en) | 2011-12-27 | 2011-12-27 | Intelligent circuit breaker |
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| Country | Link |
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| CN (1) | CN202405192U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522269A (en) * | 2011-12-27 | 2012-06-27 | 日新恒通电气有限公司 | Intelligent circuit breaker |
| CN102929179A (en) * | 2012-11-13 | 2013-02-13 | 宁夏力成电气集团有限公司 | Intelligent modularized permanent magnetic mechanism controller |
| CN103542825A (en) * | 2013-09-24 | 2014-01-29 | 许继集团有限公司 | Breaker travel measuring method and system |
| CN108418175A (en) * | 2018-02-26 | 2018-08-17 | 海宁鼎合工程技术开发有限公司 | A kind of intelligent grid overload current broken circuit protecting equipment of high sensitivity |
| US10147572B2 (en) | 2016-03-11 | 2018-12-04 | Abb Schweiz Ag | Embedded pole and method of assembling same |
| US11908646B2 (en) | 2021-06-16 | 2024-02-20 | Schneider Electric Industries Sas | Breaking device for a medium voltage electrical circuit |
-
2011
- 2011-12-27 CN CN2011205530275U patent/CN202405192U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522269A (en) * | 2011-12-27 | 2012-06-27 | 日新恒通电气有限公司 | Intelligent circuit breaker |
| CN102522269B (en) * | 2011-12-27 | 2016-08-24 | 日新恒通电气有限公司 | Intelligent breaker |
| CN102929179A (en) * | 2012-11-13 | 2013-02-13 | 宁夏力成电气集团有限公司 | Intelligent modularized permanent magnetic mechanism controller |
| CN103542825A (en) * | 2013-09-24 | 2014-01-29 | 许继集团有限公司 | Breaker travel measuring method and system |
| US10147572B2 (en) | 2016-03-11 | 2018-12-04 | Abb Schweiz Ag | Embedded pole and method of assembling same |
| CN108418175A (en) * | 2018-02-26 | 2018-08-17 | 海宁鼎合工程技术开发有限公司 | A kind of intelligent grid overload current broken circuit protecting equipment of high sensitivity |
| CN108418175B (en) * | 2018-02-26 | 2020-01-07 | 温州盛淼工业设计有限公司 | High-sensitivity intelligent power grid overload current circuit breaking protection device |
| US11908646B2 (en) | 2021-06-16 | 2024-02-20 | Schneider Electric Industries Sas | Breaking device for a medium voltage electrical circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120829 Effective date of abandoning: 20160824 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |