CN202839480U - Safe intelligent plastic casing breaker - Google Patents
Safe intelligent plastic casing breaker Download PDFInfo
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- CN202839480U CN202839480U CN 201220251634 CN201220251634U CN202839480U CN 202839480 U CN202839480 U CN 202839480U CN 201220251634 CN201220251634 CN 201220251634 CN 201220251634 U CN201220251634 U CN 201220251634U CN 202839480 U CN202839480 U CN 202839480U
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- circuit breaker
- plastic casing
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Abstract
The utility model relates to low voltage protection equipment and specifically relates to a safe intelligent plastic casing breaker. The safe intelligent plastic casing breaker comprises a breaker casing and an intelligent tripper, wherein the intelligent tripper comprises a detection unit used for detecting a current/voltage signal, a hardware anti-interference unit used for carrying out anti-interference processing for the signal of the detection unit and a central processing unit used for receiving a signal of the hardware anti-interference unit and driving a tripper execution unit to have motion according to the signal, the breaker casing is further comprises a shunt tripper module, a control signal output end of the shunt tripper module is connected with the central processing unit, and a control signal input end of the shunt tripper module is connected with a wiring terminal on the breaker casing. The breaker can avoid low reliability and safety of a shunt tripper module in the prior art caused by separation design, and a problem of improved maintenance cost is further solved.
Description
Technical field
The utility model relates to low-voltage variation equipment, specifically a kind of safe and intelligent breaker of plastic casing.
Background technology
Along with the progress of computer technology, information technology, the speeding up the construction of national intelligent grid, power equipment towards can communicate by letter, intelligent, networked future development.Traditional low-voltage circuit breaker can not satisfy the requirement of distribution system, and the low-voltage circuit breaker with intellectuality, modularization, Communica-tion function will be widely used gradually.Therefore, as one of important electric elements in the power supply-distribution system, on the basis of the functions such as the selective protection that realizes distribution system, demonstration, failure logging, self diagnosis, realize that on-the-spot communication becomes the development trend of low-voltage circuit breaker.
Breaker of plastic casing is a kind of of low-voltage circuit breaker, and it generally is comprised of several parts such as intelligent electrical apparatus release, contact system, arc-control device, transmission mechanism, pedestal and shells.Need the far distance controlled breaker open operation, also have additional detachable shunt release module on the part intelligent moulded case circuit breaker, the disclosed a kind of electronic breaker with shunt release module of Chinese utility model patent specification CN202111024U for example, the shunt release module of this circuit breaker can be installed in outside the shell wall of Shell of circuit breaker, and its advantage is to expand the function of circuit breaker under the prerequisite that does not change the Shell of circuit breaker volume.
Yet above-mentioned shunt release module also exists reliability not high in actual use, the problem that security performance can't ensure.This is because the power line that above-mentioned shunt release module is drawn need to manually be connected with the intelligent electrical apparatus release of circuit breaker, add between shunt release module and the Shell of circuit breaker be connected and fixed very infirm, therefore in circuit breaker transportation, installation and abominable environment for use, probably can cause the wiring between shunt release module and the circuit breaker to disconnect, even shunt release module integral body come off.On the one hand, this will directly cause the reliability of circuit breaker and fail safe to reduce; On the other hand, in network system, circuit breaker arranges that scope is wide, quantity is many, if wherein certain shunt release module lost efficacy, detects and maintenance work will be very difficult, so has increased the cost of system maintenance and overhaul of line breaker.Therefore existing shunt release module seems and need not to change existing breaker structure (mould need not be changed), makes simple and conveniently, still brings on the contrary a series of drawback.
Therefore provide a kind of safe, reliability is strong, and can to avoid the safe and intelligent breaker of plastic casing of high maintenance cost be a technical problem that needs to be resolved hurrily.
Summary of the invention
The technical problem that the utility model solves provide a kind of safe, reliability is strong, and can avoid the safe and intelligent breaker of plastic casing of high maintenance cost.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of safe and intelligent breaker of plastic casing, comprise Shell of circuit breaker and the intelligent electrical apparatus release that is arranged in this Shell of circuit breaker, this intelligent electrical apparatus release comprises the detecting unit for detection of electric current and/or voltage signal, be used for the signal of detecting unit is carried out the hardware anti-interference unit of anti-interference process, and the CPU that is used for receiving this hardware anti-interference cell signal and drives accordingly the action of dropout performance element, also be provided with shunt release module in the described Shell of circuit breaker, the control signal output of this shunt release module is connected with described CPU, and the control signal input of this shunt release module is connected with binding post on the described Shell of circuit breaker.
One of improve: described detecting unit is the current/voltage instrument transformer, and described CPU is the CPU with the A/D conversion.
Two of improvement: described intelligent electrical apparatus release also comprises the communication module that is connected with described CPU.
Three of improvement: described intelligent electrical apparatus release also comprises display unit and the key-press input unit that is connected with described CPU, and this display unit and key-press input unit are arranged on the outer surface of described Shell of circuit breaker.
Compared with prior art, beneficial effect is: shunt release module of the present utility model is arranged on the inside of Shell of circuit breaker.The control signal output of shunt release directly can be connected with the CPU of intelligent electrical apparatus release in the circuit breaker production phase, because the useful space in the Shell of circuit breaker is limited, therefore shunt release module is designed to a special shape and makes it reliably to link with the performance element of threading off, shunt release module can be fixed in the Shell of circuit breaker very securely simultaneously.Reliability and the fail safe reduction that can avoid thus existing shunt release module to cause because adopting separation design, and the problem that increases the Maintenance and Repair cost.
Description of drawings
Fig. 1 is the principle schematic of embodiment.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
The safe and intelligent breaker of plastic casing of present embodiment comprises Shell of circuit breaker 10 and the intelligent electrical apparatus release that is arranged in this Shell of circuit breaker 10.As shown in Figure 1, this intelligent electrical apparatus release comprises detecting unit 1, hardware anti-interference unit 2 and the CPU 3 for electric current and/or voltage signal, the signal of 3 pairs of hardware anti-interference unit of CPU carries out Software Anti-interference and signal is processed, compares, judged, and drives dropout performance element 4 according to judged result.Adopting the advantage of intelligent electrical apparatus release is that it can provide three sections even four segment protects, and operating value is accurate, and can regulate.If can also be connected with host computer after installing communication module additional, carry out Long-distance Control.Substantially not influenced by ambient temperature.In addition, because circuit breaker is operated in the comparatively abominable electromagnetic environment, the strong jamming meeting makes system monitor out of control, breaks away from normal execution sequence, even sends wrong control signal, causes the misoperation of circuit breaker.Therefore the interference free performance of release has determined that to a great extent can circuit breaker work and its accuracy of action and reliability.In order to guarantee the system works reliability, the Anti-Jamming Technique that the safe and intelligent circuit breaker of present embodiment adopts soft and hardware to combine.
In addition, also be provided with shunt release module 5 in the Shell of circuit breaker 10 of present embodiment, the control signal output of this shunt release module 5 is connected with the CPU 3 of intelligent electrical apparatus release, and the control signal input of this shunt release module 5 is connected with binding post on the Shell of circuit breaker 10.Because shunt release module 5 is arranged on the inside of Shell of circuit breaker 10.The control signal output of shunt release can be connected with the CPU 3 of intelligent electrical apparatus release in the circuit breaker production phase, the shunt release module 5 that is designed to special shape can reliably link with the dropout performance element, and shunt release module 5 can be fixed in the Shell of circuit breaker 10 very securely simultaneously.Reliability and the fail safe reduction that can avoid thus existing shunt release module 5 to cause because adopting separation design, and the problem that increases the Maintenance and Repair cost.
In addition, detecting unit 1 is the current/voltage instrument transformer, CPU 3 is the CPU with the A/D conversion, and this CPU can change and process the control signal of described current/voltage instrument transformer and described shunt release module 5, and this signal can drive the dropout performance element.The analog signal that the CPU that changes with A/D inputs detecting unit 1 transfers digital signal to; carry out logical operation and processing for single-chip microcomputer; operation result and preset value compare and judge whether to thread off; determine that then operate time and output meet the logic level signal of default protection if thread off; this signal can drive the dropout performance element and carry out the action of threading off; make circuit breaker tripping, the disengagement failure circuit.
Further, for expanding the remote control function of present embodiment, intelligent electrical apparatus release also comprises the communication module 6 that is connected with CPU 3.Intelligent electrical apparatus release also comprises display unit and the key-press input unit that is connected with CPU 3, and this display unit and key-press input unit are arranged on the outer surface of Shell of circuit breaker 10.
Claims (4)
1. safe and intelligent breaker of plastic casing, comprise Shell of circuit breaker and the intelligent electrical apparatus release that is arranged in this Shell of circuit breaker, this intelligent electrical apparatus release comprises the detecting unit for detection of the current/voltage signal, be used for the signal of detecting unit is carried out the hardware anti-interference unit of anti-interference process, and the CPU that is used for receiving this hardware anti-interference cell signal and drives accordingly the action of dropout performance element, it is characterized in that: also be provided with shunt release module in the described Shell of circuit breaker, the control signal output of this shunt release module is connected with described CPU, and the control signal input of this shunt release module is connected with binding post on the described Shell of circuit breaker.
2. safe and intelligent breaker of plastic casing according to claim 1, it is characterized in that: described detecting unit is the current/voltage instrument transformer, described CPU is the CPU with the A/D conversion.
3. safe and intelligent breaker of plastic casing according to claim 1, it is characterized in that: described intelligent electrical apparatus release also comprises the communication module that is connected with described CPU.
4. according to claim 1 to 3 arbitrary described safe and intelligent breaker of plastic casing, it is characterized in that: described intelligent electrical apparatus release also comprises display unit and the key-press input unit that is connected with described CPU, and this display unit and key-press input unit are arranged on the outer surface of described Shell of circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220251634 CN202839480U (en) | 2012-05-31 | 2012-05-31 | Safe intelligent plastic casing breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220251634 CN202839480U (en) | 2012-05-31 | 2012-05-31 | Safe intelligent plastic casing breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202839480U true CN202839480U (en) | 2013-03-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220251634 Expired - Fee Related CN202839480U (en) | 2012-05-31 | 2012-05-31 | Safe intelligent plastic casing breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202839480U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106959639A (en) * | 2017-04-10 | 2017-07-18 | 北京德威特继保自动化科技股份有限公司 | Low-voltage intelligent is switched and its board processing method, storage medium and processor |
| CN112017873A (en) * | 2020-08-25 | 2020-12-01 | 王云保 | Circuit breaker integrated with wireless temperature measuring sensor |
-
2012
- 2012-05-31 CN CN 201220251634 patent/CN202839480U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106959639A (en) * | 2017-04-10 | 2017-07-18 | 北京德威特继保自动化科技股份有限公司 | Low-voltage intelligent is switched and its board processing method, storage medium and processor |
| CN112017873A (en) * | 2020-08-25 | 2020-12-01 | 王云保 | Circuit breaker integrated with wireless temperature measuring sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20130531 |