CN103346621A - Multifunctional intelligent circuit breaker - Google Patents
Multifunctional intelligent circuit breaker Download PDFInfo
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- CN103346621A CN103346621A CN2013103163773A CN201310316377A CN103346621A CN 103346621 A CN103346621 A CN 103346621A CN 2013103163773 A CN2013103163773 A CN 2013103163773A CN 201310316377 A CN201310316377 A CN 201310316377A CN 103346621 A CN103346621 A CN 103346621A
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Abstract
The invention relates to a multifunctional intelligent circuit breaker. The multifunctional intelligent circuit breaker comprises a circuit breaker body internally installed with a self-powered current transformer, a sampling current transformer, a zero sequence current transformer and a release, a three-phase high-precision current transformer mounted at the output end of the circuit breaker body and an externally installed intelligent controller, wherein the output signals of the sampling current transformer, the zero sequence current transformer and the three-phase high-precision current transformer and the three-phase voltage signals at the input end of the circuit breaker are connected with different input ends of the intelligent controller; and the control end of the release is connected with the output end of the intelligent controller. The intelligent circuit breaker has multiple functions, has complete protection function and can acquire and upload various high-precision field data required by a monitoring center. By adopting the circuit breaker, the monitoring requirement of a smart grid client can be met without using other auxiliary monitoring devices, so that the production cost of distribution equipment is greatly lowered.
Description
Technical field
The present invention relates to a kind of intelligent type low-voltage circuit breaker with multiple function, belong to the switching technique field.
Background technology
Low-voltage circuit breaker is the important electric elements in the low-voltage distribution apparatus, the intellectuality of the construction of intelligent grid and electrical network user side, reliability to distribution system is had higher requirement, objectively promoted the fast development of intelligent low-pressure circuit breaker, plastic casing formula low-voltage intelligent circuit breaker wherein develops rapidly especially, the premium quality product that has occurred multiple different structure has in recent years been made very big contribution for realizing the low-voltage network intellectuality.Present low-voltage intelligent circuit breaker has fairly perfect defencive function, also the service data at scene can be uploaded to center-controlling computer, realizes remote control, remote measurement, remote regulating and remote signalling function.But along with the extensive application of renewable green energy resource and the continuous development of energy conservation level, the field data that communication is uploaded has had more higher requirements, as current with high accuracy (0.2 grade), voltage (0.2 grade), power, power factor, frequency parameter, electric energy (0.5 grade) four-quadrant (active energy (absorption), active energy (release), idle (perception), idle (capacitive)) measuring parameter; Parameters of electric power such as the quality of power supply (harmonic wave) situation.In addition, the residual current data that also need to upload on-the-spot circuit that have are in order to judge whether there is disaster hidden-trouble accordingly.Obviously, only also can't finish the measurement of these parameters with existing intelligent breaker and upload, increasing other auxiliary monitoring device then will certainly significantly increase the cost of controller switching equipment, and make numerous power distribution cabinets, the case product structure bulky complex that becomes, cause bigger financial burden for power department and user.
Summary of the invention
The objective of the invention is to the drawback at prior art, provide a kind of and can satisfy the multifunctional intellectual circuit breaker that the intelligent grid user holds demand for development.
Problem of the present invention realizes with following technical proposals:
A kind of multifunctional intellectual circuit breaker, it comprises built-in self-powered current transformer, sample rate current instrument transformer (three-phase or three-phase and four-line), zero sequence current mutual inductor and the breaker body of release, the three-phase high precision current transformer that is installed in the breaker body output and external intelligent controller; The output signal of described sample rate current instrument transformer, zero sequence current mutual inductor, three-phase high precision current transformer and the three-phase voltage signal of breaker body input connect the different inputs of intelligent controller, the output of the control termination intelligent controller of described release.
Above-mentioned multifunctional intellectual circuit breaker, described intelligent controller comprises primary processor, auxiliary processor, communication module, instrument module, output signal amplifier and four input signal amplifiers, the input of four input signal amplifiers connects the output of sample rate current instrument transformer and zero sequence current mutual inductor respectively, output connects the different input ports of (zero sequence current mutual inductor is by the electric fire disaster monitoring module) auxiliary processor respectively, the output port of the input termination auxiliary processor of described output signal amplifier, its output termination release; The TXD of auxiliary processor and RXD end connect RXD1 and the TXD1 end of primary processor respectively, three current signal inputs of described instrument module connect the output of three-phase high precision current transformer respectively, and three voltage signal inputs connect the three-phase voltage signal of breaker body input respectively; Primary processor is connected with center-controlling computer by communication module.
Above-mentioned multifunctional intellectual circuit breaker, described intelligent controller also comprises LCD and keyboard, described LCD and keyboard connect the distinct interface of primary processor respectively.
Above-mentioned multifunctional intellectual circuit breaker, described intelligent controller also comprises SMS module, described SMS module connects the output port of primary processor.
Above-mentioned multifunctional intellectual circuit breaker, described intelligent controller also comprises the electric fire disaster monitoring module, the input port of the output termination auxiliary processor of described electric fire disaster monitoring module.
Above-mentioned multifunctional intellectual circuit breaker, described intelligent controller is by external accessory power supply and the self-powered current transformer power supply that is arranged in the breaker body.
The present invention integrates multiple function, not only has perfect overload, short circuit, ground connection, electric leakage, mistake, defencive function such as under-voltage, can also gather and upload the required various field datas of Surveillance center.This circuit breaker does not need other auxiliary monitoring device just can satisfy nearly all electrical quantity information gatherings commonly used such as the monitoring requirement of intelligent grid user end and power test, has multiple function, greatly reduces the manufacturing cost of controller switching equipment.
Description of drawings
The present invention is further described below in conjunction with accompanying drawing.
Fig. 1 is structural representation of the present invention;
Fig. 2 is electric theory diagram of the present invention;
Fig. 3 is the electrical schematic diagram of intelligent controller.
Each list of reference numerals is among the figure: 1, breaker body; 2, intelligent controller; 3, high precision current transformer; CPU1, primary processor; CPU2, auxiliary processor; U1, communication module; U2, SMS module; U3, instrument module; LCD, LCD; KB, keyboard; F1～F4, first input signal amplifier～the 4th input signal amplifier; OF, output signal amplifier; TK, release; H, electric fire disaster monitoring module.
Embodiment
Referring to Fig. 1 and Fig. 2, the present invention includes breaker body 1, three-phase high precision current transformer 3 and intelligent controller 2, be provided with release TK, self-powered current transformer, sample rate current instrument transformer, zero sequence current mutual inductor in the breaker body 1.Three-phase high precision current transformer 3 is installed in the output line terminal of breaker body 1.
Referring to Fig. 3, intelligent controller 2 comprises primary processor CPU1, auxiliary processor CPU2, communication module U1, SMS module U2, instrument module U3, LCD LCD, keyboard KB, output signal amplifier OF and four input signal amplifiers.Auxiliary processor CPU2 realizes failure protection function; primary processor CPU1 is responsible for the function except error protection; for example from parameter tuning, the demonstration of auxiliary processor CPU2, upload repertoires such as interface from demonstration and the communication of the high accuracy electrical parameter of instrument module U3.Three-phase high precision current transformer 3 is introduced intelligent controller with high-acruracy survey information, to improve intelligent controller for the display precision of each parameters of electric power.Breaker body 1 inner or external zero sequence current mutual inductor is gathered zero-sequence current information, is connected to auxiliary processor CPU2 by the electric fire disaster monitoring module and realizes that electric fire disaster monitoring is reported to the police or the function of disengagement failure hidden danger circuit.The present invention is multiple functional, can satisfy whole requirements of intelligent grid user end.Simultaneously, produce and use this intelligent breaker to save great amount of manpower and material resources as society, reach energy-conservation, reduce discharging, the purpose of consumption reduction.
Claims (6)
1. multifunctional intellectual circuit breaker, it is characterized in that, it comprises built-in self-powered current transformer, the sample rate current instrument transformer, the breaker body (1) of zero sequence current mutual inductor and release (TK), be installed in the three-phase high precision current transformer of breaker body (1) output and external intelligent controller (2), described sample rate current instrument transformer, zero sequence current mutual inductor, the three-phase voltage signal of the output signal of three-phase high precision current transformer and breaker body (1) input connects the different inputs of intelligent controller (2), the output of the control termination intelligent controller (2) of described release (TK).
2. a kind of multifunctional intellectual circuit breaker according to claim 1, it is characterized in that, described intelligent controller (2) comprises primary processor (CPU1), auxiliary processor (CPU2), communication module (U1), SMS module (U2), instrument module (U3), output signal amplifier (OF) and four input signal amplifiers, the input of four input signal amplifiers connects the output of sample rate current instrument transformer and zero sequence current mutual inductor respectively, output connects the different input ports of auxiliary processor (CPU2) respectively, the output port of the input termination auxiliary processor (CPU2) of described output signal amplifier (OF), it exports termination release (TK); The TXD of auxiliary processor (CPU2) and RXD end connect RXD1 and the TXD1 end of primary processor (CPU1) respectively, three current signal inputs of described instrument module (U3) connect the output of three-phase high precision current transformer respectively, and three voltage signal inputs connect the three-phase voltage signal of breaker body (1) input respectively; Primary processor (CPU1) is connected with center-controlling computer by communication module (U1).
3. a kind of multifunctional intellectual circuit breaker according to claim 2, it is characterized in that, described intelligent controller (2) also comprises LCD (LCD) and keyboard (KB), and described LCD (LCD) and keyboard (KB) connect the distinct interface of primary processor (CPU1) respectively.
4. a kind of multifunctional intellectual circuit breaker according to claim 3 is characterized in that, described intelligent controller (2) also comprises SMS module (U2), and described SMS module (U2) connects the output port of primary processor (CPU1).
5. a kind of multifunctional intellectual circuit breaker according to claim 4, it is characterized in that, described intelligent controller (2) also comprises electric fire disaster monitoring module (H), the input connecting to neutral order current transformer of described electric fire disaster monitoring module (H), the input port of output termination auxiliary processor (CPU2).
6. a kind of multifunctional intellectual circuit breaker according to claim 5 is characterized in that, described intelligent controller (2) is by external accessory power supply and be arranged on the interior self-powered current transformer power supply of breaker body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103163773A CN103346621A (en) | 2013-07-25 | 2013-07-25 | Multifunctional intelligent circuit breaker |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013103163773A CN103346621A (en) | 2013-07-25 | 2013-07-25 | Multifunctional intelligent circuit breaker |
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| CN103346621A true CN103346621A (en) | 2013-10-09 |
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| CN2013103163773A Pending CN103346621A (en) | 2013-07-25 | 2013-07-25 | Multifunctional intelligent circuit breaker |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103794419A (en) * | 2014-01-17 | 2014-05-14 | 上海磊跃自动化设备有限公司 | Intelligent control device for calibration type low-voltage circuit breaker |
| CN104218682A (en) * | 2014-09-30 | 2014-12-17 | 安徽鑫龙电器股份有限公司 | Intelligent circuit breaker |
| CN105429010A (en) * | 2014-09-19 | 2016-03-23 | 无锡阿比利德电力科技有限公司 | Two-component low-voltage outlet wire control cabinet |
| CN106685080A (en) * | 2016-12-09 | 2017-05-17 | 国网北京市电力公司 | Circuit breaker and control system thereof |
| CN115078820A (en) * | 2022-08-19 | 2022-09-20 | 石家庄科林电气股份有限公司 | Saturation processing method for protection current transformer of low-voltage intelligent circuit breaker |
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| CN101106262A (en) * | 2007-01-26 | 2008-01-16 | 西安交通大学 | Dual core intelligent communication control for plastic shell low voltage breaker |
| CN101409467A (en) * | 2008-11-26 | 2009-04-15 | 上海电器科学研究所（集团）有限公司 | Circuit breaker controller |
| CN102130439A (en) * | 2011-03-16 | 2011-07-20 | 天津市鸿远电气设备有限公司 | Leakage protection switch with virtual connection preventing function |
| CN102306437A (en) * | 2011-08-26 | 2012-01-04 | 浙江索德科技有限公司 | Residual current type intelligent electrical fire monitor |
| CN202957190U (en) * | 2012-11-30 | 2013-05-29 | 北海银河开关设备有限公司 | Intelligent circuit breaker |
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2013
- 2013-07-25 CN CN2013103163773A patent/CN103346621A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101106262A (en) * | 2007-01-26 | 2008-01-16 | 西安交通大学 | Dual core intelligent communication control for plastic shell low voltage breaker |
| CN101409467A (en) * | 2008-11-26 | 2009-04-15 | 上海电器科学研究所（集团）有限公司 | Circuit breaker controller |
| CN102130439A (en) * | 2011-03-16 | 2011-07-20 | 天津市鸿远电气设备有限公司 | Leakage protection switch with virtual connection preventing function |
| CN102306437A (en) * | 2011-08-26 | 2012-01-04 | 浙江索德科技有限公司 | Residual current type intelligent electrical fire monitor |
| CN202957190U (en) * | 2012-11-30 | 2013-05-29 | 北海银河开关设备有限公司 | Intelligent circuit breaker |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103794419A (en) * | 2014-01-17 | 2014-05-14 | 上海磊跃自动化设备有限公司 | Intelligent control device for calibration type low-voltage circuit breaker |
| CN105429010A (en) * | 2014-09-19 | 2016-03-23 | 无锡阿比利德电力科技有限公司 | Two-component low-voltage outlet wire control cabinet |
| CN104218682A (en) * | 2014-09-30 | 2014-12-17 | 安徽鑫龙电器股份有限公司 | Intelligent circuit breaker |
| CN104218682B (en) * | 2014-09-30 | 2017-04-19 | 安徽鑫龙电器股份有限公司 | Intelligent circuit breaker |
| CN106685080A (en) * | 2016-12-09 | 2017-05-17 | 国网北京市电力公司 | Circuit breaker and control system thereof |
| CN115078820A (en) * | 2022-08-19 | 2022-09-20 | 石家庄科林电气股份有限公司 | Saturation processing method for protection current transformer of low-voltage intelligent circuit breaker |
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Application publication date: 20131009 |