CN201789279U - Special overvoltage protection device for low-voltage universal circuit breaker - Google Patents
Special overvoltage protection device for low-voltage universal circuit breaker Download PDFInfo
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- CN201789279U CN201789279U CN2010205282001U CN201020528200U CN201789279U CN 201789279 U CN201789279 U CN 201789279U CN 2010205282001 U CN2010205282001 U CN 2010205282001U CN 201020528200 U CN201020528200 U CN 201020528200U CN 201789279 U CN201789279 U CN 201789279U
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Abstract
The utility model discloses a special overvoltage protection device for a low-voltage universal circuit breaker, which comprises an analysis processing module, a sampling module, a setting module, an executing module and a power module, wherein the sampling module is used for acquiring voltage parameters of a three-phase circuit, the setting module is used for providing voltage parameter set values for the analysis processing module, the executing module is used for controlling tripping action of the circuit breaker, and the power module is provided with a first voltage output end and a second voltage output end. Besides, the first voltage output end and the second voltage output end of the power module are respectively connected with the analysis processing module and the executing module; an input end of the sampling module is connected with the three-phase circuit; and an output end of the sampling module, an output end of the setting module and an input end of the executing module are respectively connected with the analysis processing module. The special overvoltage protection device is flexible and simple in arrangement and can conveniently form a circuit breaking protection system with complete functions together with an existing low-voltage universal circuit breaker. Compared with a high-grade low-voltage universal circuit breaker with an overvoltage protection function, the special overvoltage protection device has the advantage of capability of greatly reducing the cost of the device.
Description
Technical field
The utility model relates to a kind of matching component of low pressure all-purpose circuit breaker, the special-purpose overvoltage protection of particularly a kind of low pressure all-purpose circuit breaker.
Background technology
China is vast in territory; hydropower resources are abundant; the village small station spreads all over the place; but owing to lack effective pressure regulation means; so voltage fluctuation is more frequent, the overvoltage accident is many, therefore; numerous rural subscribers wish that the low pressure all-purpose circuit breaker can install overvoltage protection, damage power consumption equipment to prevent overvoltage.
Yet at present domestic or low pressure all-purpose circuit breaker that foreign enterprise produces only at the controller of high type, just has over-voltage protection function, this high type low pressure all-purpose circuit breaker, and price is higher, and the general user is difficult to bear.
Summary of the invention
For addressing the above problem, the utility model provides a kind of low pressure all-purpose circuit breaker special-purpose overvoltage protection, and it can become to realize originally over-voltage protection function with lower with the supporting use of circuit breaker.
The utility model is that the technical scheme that its problem of solution is adopted is:
The special-purpose overvoltage protection of low pressure all-purpose circuit breaker; comprise analysis and processing module; be used to gather the sampling module of three-phase circuit voltage parameter; be used for providing the module of adjusting of voltage parameter set point to analysis and processing module; be used to control the Executive Module of circuit breaker tripping action and be provided with first voltage output end and the power module of second voltage output end; first voltage output end of described power module; second voltage output end respectively with analysis and processing module; Executive Module connects; the input of described sampling module is connected with three-phase circuit, sampling module; the output of the module of adjusting and the input of Executive Module link to each other with analysis and processing module respectively.
Preferably, this overvoltage protection also comprises the display module that is used to show the three-phase circuit voltage parameter, and the input of described display module is connected with analysis and processing module.
Preferably, this overvoltage protection also comprises alarm module, and the input of described alarm module is connected with analysis and processing module.Described alarm module comprises alarm lamp and buzzer circuit, and the input of described alarm lamp and buzzer circuit is connected with analysis and processing module respectively.
Preferably, described sampling module comprises signal processing circuit and three single-phase transformers that are respectively applied for collection three-phase circuit voltage parameter, and the output of single-phase transformer is connected with analysis and processing module by signal processing circuit.
The utility model detects the associated voltage parameter of three-phase circuit by sampling module; the voltage parameter that detection obtains is sent in the analysis and processing module and analyzes comparison with the voltage setting value that module preset by adjusting; when voltage parameter is higher than set point, show and occur the overvoltage phenomenon in the three-phase circuit; analysis and processing module is in time to Executive Module output control signal; the dropout machinery that Executive Module in time the orders about circuit breaker separating brake action of threading off; realize overvoltage protection, thereby guarantee to be connected to the safe in utilization of power consumption equipment on this three-phase circuit.The utility model flexible configuration is simple, can be easily and the complete open circuit protection system of existing low pressure all-purpose circuit breaker composition function, to compare with the high type low pressure all-purpose circuit breaker that carries over-voltage protection function, and its cost can reduce greatly.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples:
Fig. 1 is the block diagram of system of the present utility model.
Embodiment
With reference to Fig. 1; the special-purpose overvoltage protection of low pressure all-purpose circuit breaker of the present utility model; comprise analysis and processing module 1; be used to gather the sampling module 2 of three-phase circuit voltage parameter; be used for providing the module 3 of adjusting of voltage parameter set point to analysis and processing module 1; be used to control the Executive Module 4 of circuit breaker tripping action and the power module 5 that is provided with first voltage output end 6 and second voltage output end 7; first voltage output end 6 of described power module 5; second voltage output end 7 respectively with analysis and processing module 1; Executive Module 4 connects; the input of described sampling module 2 is connected with three-phase circuit, sampling module 2; the input of the output of the module of adjusting 3 and Executive Module 4 links to each other with analysis and processing module 1 respectively.
Power module 5 of the present utility model is generally powered by transformer, its behind over commutation by first voltage output end 6 and second voltage output end 7 to externally fed.Analysis and processing module 1 can adopt single-chip microcomputer, DSP etc. to make, its working power utilizes first voltage output end 6 of power module 5 to provide, when analysis and processing module 1 adopted single-chip microcomputer to be core, first voltage output end 6 of power module 5 is exported was generally the 5V direct voltage.The phase voltage parameter that is generally every circuitry phase that sampling module 2 is sampled, sampling module 2 preferably includes signal processing circuit and three single-phase transformers, the output of single-phase transformer is connected with analysis and processing module 1 by signal processing circuit, single-phase transformer is respectively applied for gathers the three-phase circuit voltage parameter, signal processing circuit is used for processing such as filtering, amplification are carried out in the output of single-phase transformer, and the sampled signal that obtains is at last promptly sent into analysis and processing module 1 and handled.The module of adjusting 3 is used for providing the voltage parameter set point to analysis and processing module 1, the phase voltage size that is generally every phase that this voltage parameter set point is limited.Executive Module 4 generally is made up of relay circuit; this relay circuit generally comprises switching tube and carries out relay; wherein switching tube be connected to second voltage output end 7(voltage output size after relay coil is connected and be generally 12V) and ground between; the control signal of control end of switching tube receiving and analyzing processing module 1; when judging the detection voltage parameter in the analysis and Control module 1 greater than set point; the 1 control switch pipe conducting of analysis and Control module; the relay coil energising; cause the relay contact action; thereby make the circuit breaker tripping coil electricity; make circuit breaker take off the thread off separating brake action of mouthful machinery, realize over-voltage protection function.When practical application, Executive Module 4 is except being provided for finishing the relay circuit of automatic dropout task, its inside can also further be provided with the relay circuit that is used to finish the hand tripping task, is used for can realizing hand tripping controlled function to circuit breaker by operating this relay circuit.
Except above-mentioned composition structure, the utility model also preferably includes the display module 8 that is used to show the three-phase circuit voltage parameter, and the input of described display module 8 is connected with analysis and processing module 1.This display module 8 generally comprises with three-phase circuit distinguishes three groups of corresponding charactrons, is used to each the phase voltage parameter that shows that detection obtains.In addition, the utility model also preferably includes alarm module 9, and the input of described alarm module 9 is connected with analysis and processing module 1, further, alarm module 9 preferably includes alarm lamp and buzzer circuit, and the input of alarm lamp and buzzer circuit is connected with analysis and processing module 1 respectively.The voltage parameter that obtains when detection near or during greater than voltage setting value, analysis and Control module 1 can be to alarm module 9 output alarm signals, order about alarm lamp and flash and make the buzzer in the buzzer circuit send alarm sound, notify the staff to handle.
Claims (5)
1. the special-purpose overvoltage protection of low pressure all-purpose circuit breaker; it is characterized in that comprising analysis and processing module (1); be used to gather the sampling module (2) of three-phase circuit voltage parameter; be used for providing the module of adjusting (3) of voltage parameter set point to analysis and processing module (1); be used to control the Executive Module (4) of circuit breaker tripping action and be provided with first voltage output end (6) and the power module (5) of second voltage output end (7); first voltage output end (6) of described power module (5); second voltage output end (7) respectively with analysis and processing module (1); Executive Module (4) connects; the input of described sampling module (2) is connected with three-phase circuit, sampling module (2); the input of the output of the module of adjusting (3) and Executive Module (4) links to each other with analysis and processing module (1) respectively.
2. the special-purpose overvoltage protection of low pressure all-purpose circuit breaker according to claim 1; it is characterized in that also comprising the display module (8) that is used to show the three-phase circuit voltage parameter, the input of described display module (8) is connected with analysis and processing module (1).
3. the special-purpose overvoltage protection of low pressure all-purpose circuit breaker according to claim 1 is characterized in that also comprising alarm module (9), and the input of described alarm module (9) is connected with analysis and processing module (1).
4. the special-purpose overvoltage protection of low pressure all-purpose circuit breaker according to claim 3; it is characterized in that described alarm module (9) comprises alarm lamp and buzzer circuit, the input of described alarm lamp and buzzer circuit is connected with analysis and processing module (1) respectively.
5. the special-purpose overvoltage protection of low pressure all-purpose circuit breaker according to claim 1; it is characterized in that described sampling module (2) comprises signal processing circuit and three single-phase transformers that are respectively applied for collection three-phase circuit voltage parameter, the output of single-phase transformer is connected with analysis and processing module (1) by signal processing circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205282001U CN201789279U (en) | 2010-09-14 | 2010-09-14 | Special overvoltage protection device for low-voltage universal circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205282001U CN201789279U (en) | 2010-09-14 | 2010-09-14 | Special overvoltage protection device for low-voltage universal circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201789279U true CN201789279U (en) | 2011-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205282001U Expired - Fee Related CN201789279U (en) | 2010-09-14 | 2010-09-14 | Special overvoltage protection device for low-voltage universal circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201789279U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104091732A (en) * | 2014-03-12 | 2014-10-08 | 国家电网公司 | Special-purpose circuit breaker of low-voltage anti-islanding device |
| CN107749610A (en) * | 2017-10-23 | 2018-03-02 | 湖北霞光电力设备有限公司 | A kind of high-low pressure and with the breaker of intelligent alarm |
-
2010
- 2010-09-14 CN CN2010205282001U patent/CN201789279U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104091732A (en) * | 2014-03-12 | 2014-10-08 | 国家电网公司 | Special-purpose circuit breaker of low-voltage anti-islanding device |
| CN104091732B (en) * | 2014-03-12 | 2018-06-01 | 国家电网公司 | A kind of definite purpose circuit breaker of low pressure anti-islanding device |
| CN107749610A (en) * | 2017-10-23 | 2018-03-02 | 湖北霞光电力设备有限公司 | A kind of high-low pressure and with the breaker of intelligent alarm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GUANGDONG NANGUAN ELECTRIC CO., LTD. Free format text: FORMER NAME: FOSHAN NANDIAN SWITCH CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 528000 Guangdong Province Nanhai District of Foshan city streets Guicheng Pingzhou Pingxi Industrial Zone A block two Patentee after: GUANGDONG NANGUAN ELECTRICAL CO., LTD. Address before: 528000 Guangdong Province, Foshan City Hengda GUI LAN Lu Industrial Zone Q block No. 3 Patentee before: Foshan Nandian Switch Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20190914 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |