CN106292419B - A kind of measuring-controlling and analyzing system based on arc-extinguishing harmonic-eliminating cabinet - Google Patents
A kind of measuring-controlling and analyzing system based on arc-extinguishing harmonic-eliminating cabinet Download PDFInfo
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- CN106292419B CN106292419B CN201610583973.1A CN201610583973A CN106292419B CN 106292419 B CN106292419 B CN 106292419B CN 201610583973 A CN201610583973 A CN 201610583973A CN 106292419 B CN106292419 B CN 106292419B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24024—Safety, surveillance
Abstract
The invention discloses a kind of measuring-controlling and analyzing systems based on arc-extinguishing harmonic-eliminating cabinet, including voltage transformer, current transformer, signal regulating device, analog-digital converter, central controller, data processing module, leakage meter, failure detector, communication module, GPRS module, silicon-controlled, extinguishing arc control system, arc arrester, man-machine interaction unit.All kinds of overvoltage can be restricted to lower level by the present invention; the insulation fault caused by overvoltage is set to be greatly reduced; its extinguishing arc and the mechanism of over-voltage are unrelated with the size of electric network capacitance and current, thus its protective value is not influenced by the change of power system operating mode and power grid are widened；And the function of its limitation arc grounding over-voltage is more preferable than installing arc suppression coil, more perfect；System is without being reconfigured special harmonic elimination apparatus, and its effect is more preferable.
Description
Technical field
The invention belongs to field of power more particularly to a kind of measuring-controlling and analyzing systems based on arc-extinguishing harmonic-eliminating cabinet.
Background technology
In 3~35kV power grids of neutral non-effective grounding, in addition to lightning surge, be grounded by single-phase indirect arc and
Overvoltage caused by resonance is the most frequent, and has higher amplitude and longer duration, is made to the interior insulation of electrical equipment
At the damage of accumulation property, causes to puncture over the ground in external insulation weak spot or alternate flashover, initiation short circuit accident cause gapless to aoxidize
Zinc Explosion of on Arrester etc..
Currently, the major measure of limitation arc grounding over-voltage is still by neutral point of electric network through grounding through arc.But disappear
Arc coil can not limit intermittent arcing ground over-voltage, or even because of the presence of arc suppression coil, and arc reignition may restore
The voltage maximum moment just occurs, and makes arc grounding over-voltage higher.Arc suppression coil is unable to the high fdrequency component in compensation of ground electric current
And active component, the indirect arc earth fault of high frequency cannot be eliminated, and when active component is more than certain value, fault point ground connection
Electric arc is equally unable to self-extinguishment.Practical operating experiences also turn out, in 3~35KV power grids of neutral by arc extinction coil grounding, by
The accident that arc grounding and resonance cause happens occasionally.
Invention content
It is an object of the invention to overcome problem above of the existing technology, a kind of survey based on arc-extinguishing harmonic-eliminating cabinet is provided
Analysis system is controlled, above-mentioned all kinds of overvoltage can be limited, and can accurately select the earth fault line of system, effectively
Ground improves the safety in operation and power supply reliability of above system.
To realize above-mentioned technical purpose and the technique effect, the invention is realized by the following technical scheme：
A kind of measuring-controlling and analyzing system based on arc-extinguishing harmonic-eliminating cabinet, including voltage transformer, current transformer, signal condition dress
It sets, analog-digital converter, central controller, data processing module, leakage meter, failure detector, communication module, GPRS
Module, silicon-controlled, extinguishing arc control system, arc arrester, man-machine interaction unit；
Wherein, network voltage, electric current are converted into standardization low-voltage, low electricity by the voltage transformer with current transformer
Voltage, current information are sent to signal regulating device after stream；
The signal regulating device carries out voltage, current information feedback information is sent to analog-to-digital conversion after classification conditioning
Device；
The analog-digital converter is sent to center after the feedback information from signal regulating device is converted into digital signal
Controller；
The central controller carries out after analyzing processing to coming from the digital signal in analog-digital converter by voltage, electric current
Data information is sent to memory module and carries out ephemeral data deposit；
Leakage current test information and fault detection information are sent to number by the leakage meter with failure detector
The digital signal that can be identified according to central controller is converted into after processing module progress data processing；
The central controller carries out the data-signal in data processing module, analog-digital converter, memory module
It compares and processing information is respectively sent to communication module, silicon-controlled, extinguishing arc control system, the extinguishing arc control system control after analyzing
Arc arrester processed reduces earth current, extinguishes electric arc；
Wherein, the communication module carries out two-way communication link with central controller, and communication module receives from center control
The GPRS module of access Internet network is sent information to after the processing information of device processed；
The GPRS module is sent to client after receiving the data information from communication module and is handed over client
It connects；
The man-machine interaction unit carries out data connection using way communication and central controller；
The man-machine interaction unit is respectively sent to alarm module, display after receiving the data information from central controller
Module, the man-machine interaction unit are also associated with Keysheet module, by being sent to after processing is identified to artificial input information
Central controller, while realtime curve is carried out by display module.
Further, the man-machine interaction unit is also associated with clock module, and the man-machine interaction unit is to coming from keyboard
The clock input information of module is sent to clock module after being handled.
Further, the client includes PC machine and mobile phone, and the PC machine carries out real time data with mobile phone by network
Connection, and central controller is fed back to by communication module in time.
The beneficial effects of the invention are as follows：
All kinds of overvoltage can be restricted to lower level by the present invention, and the insulation fault caused by overvoltage is made greatly to subtract
Few, the mechanism of extinguishing arc and over-voltage is unrelated with the size of electric network capacitance and current, thus its protective value is not transported by power grid
The change of line mode and the widened influence of power grid；And it limits the function of arc grounding over-voltage more than installing arc suppression coil
It is good, more perfect；System is without being reconfigured special harmonic elimination apparatus, and its effect is more preferable；Improve the real-time and standard for obtaining data
True property；Quick action greatly shortens the duration of single-phase earthing electric arc；Extinguish electric arc after action immediately, and can effectively limit
Arc grounding over-voltage processed.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and is constituted part of this application, this hair
Bright illustrative embodiments and their description are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the structure diagram of the present invention.
Specific implementation mode
It is below with reference to the accompanying drawings and in conjunction with the embodiments, next that the present invention will be described in detail.
A kind of measuring-controlling and analyzing system based on arc-extinguishing harmonic-eliminating cabinet as shown in Figure 1, including voltage transformer, Current Mutual Inductance
Device, signal regulating device, analog-digital converter, central controller, data processing module, leakage meter, failure detector,
Communication module, GPRS module, silicon-controlled, extinguishing arc control system, arc arrester, man-machine interaction unit；
Wherein, after network voltage, electric current are converted into standardization low-voltage, low current by voltage transformer with current transformer
Voltage, current information are sent to signal regulating device；
Signal regulating device carries out voltage, current information feedback information is sent to analog-digital converter after classification conditioning；
Feedback information from signal regulating device is converted into being sent to central control after digital signal by analog-digital converter
Device；
Central controller carries out after analyzing processing to coming from the digital signal in analog-digital converter by voltage, current data
Information is sent to memory module and carries out ephemeral data deposit；
Leakage current test information and fault detection information are sent at data by leakage meter with failure detector
Reason module is converted into the digital signal that central controller can identify after carrying out data processing；
Data-signal in data processing module, analog-digital converter, memory module is compared central controller
Processing information is respectively sent to communication module, silicon-controlled, extinguishing arc control system after analysis, extinguishing arc control system controls arc arrester
Reduce earth current, extinguishes electric arc；
Wherein, communication module carries out two-way communication link with central controller, and communication module receives to come from central controller
Processing information after send information to access Internet network GPRS module；
GPRS module is sent to client after receiving the data information from communication module and interacts company with client
It connects；
Man-machine interaction unit carries out data connection using way communication and central controller；
Man-machine interaction unit is respectively sent to alarm module, display mould after receiving the data information from central controller
Block, man-machine interaction unit are also associated with Keysheet module, by being sent to central control after processing is identified to artificial input information
Device processed, while realtime curve is carried out by display module.
Wherein, man-machine interaction unit is also associated with clock module, and man-machine interaction unit is defeated to the clock from Keysheet module
Enter after information is handled and is sent to clock module.
Wherein, client includes PC machine and mobile phone, and PC machine carries out real time data by network with mobile phone and connect, and leads in time
It crosses communication module and feeds back to central controller.
All kinds of overvoltage can be restricted to lower level by the present invention, and the insulation fault caused by overvoltage is made greatly to subtract
Few, the mechanism of extinguishing arc and over-voltage is unrelated with the size of electric network capacitance and current, thus its protective value is not transported by power grid
The change of line mode and the widened influence of power grid；And it limits the function of arc grounding over-voltage more than installing arc suppression coil
It is good, more perfect；System is without being reconfigured special harmonic elimination apparatus, and its effect is more preferable；Improve the real-time and standard for obtaining data
True property；Quick action greatly shortens the duration of single-phase earthing electric arc；Extinguish electric arc after action immediately, and can effectively limit
Arc grounding over-voltage processed.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.
Claims (3)
1. all kinds of overvoltage are restricted to lower level by a kind of measuring-controlling and analyzing system based on arc-extinguishing harmonic-eliminating cabinet, feature exists
In：Including voltage transformer, current transformer, signal regulating device, analog-digital converter, central controller, data processing module,
Leakage meter, failure detector, communication module, GPRS module, silicon-controlled, extinguishing arc control system, arc arrester, man-machine friendship
Mutual unit；
Wherein, after network voltage, electric current are converted into standardization low-voltage, low current by the voltage transformer with current transformer
Voltage, current information are sent to signal regulating device；
The signal regulating device carries out voltage, current information feedback information is sent to analog-digital converter after classification conditioning；
Feedback information from signal regulating device is converted into being sent to central control after digital signal by the analog-digital converter
Device；
The central controller carries out after analyzing processing to coming from the digital signal in analog-digital converter by voltage, current data
Information is sent to memory module and carries out ephemeral data deposit；
Leakage current test information and fault detection information are sent at data by the leakage meter with failure detector
Reason module is converted into the digital signal that central controller can identify after carrying out data processing；
Data-signal in data processing module, analog-digital converter, memory module is compared the central controller
Processing information is respectively sent to communication module, silicon-controlled, extinguishing arc control system after analysis, the extinguishing arc control system control disappears
Arc device reduces earth current, extinguishes electric arc；
Wherein, the communication module carries out two-way communication link with central controller, and communication module receives to come from central controller
Processing information after send information to access Internet network GPRS module；
The GPRS module is sent to client after receiving the data information from communication module and interacts company with client
It connects；
The man-machine interaction unit carries out data connection using way communication and central controller；
The man-machine interaction unit is respectively sent to alarm module, display mould after receiving the data information from central controller
Block, the man-machine interaction unit be also associated with Keysheet module, by being sent to after processing is identified to artificial input information
Controller is entreated, while realtime curve is carried out by display module.
2. a kind of measuring-controlling and analyzing system based on arc-extinguishing harmonic-eliminating cabinet according to claim 1, it is characterised in that：It is described man-machine
Interactive unit is also associated with clock module, and the man-machine interaction unit handles the clock input information from Keysheet module
After be sent to clock module.
3. a kind of measuring-controlling and analyzing system based on arc-extinguishing harmonic-eliminating cabinet according to claim 1, it is characterised in that：The client
End includes PC machine and mobile phone, and the PC machine carries out real time data by network with mobile phone and connect, and anti-by communication module in time
It is fed to central controller.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610583973.1A CN106292419B (en) | 2016-07-22 | 2016-07-22 | A kind of measuring-controlling and analyzing system based on arc-extinguishing harmonic-eliminating cabinet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610583973.1A CN106292419B (en) | 2016-07-22 | 2016-07-22 | A kind of measuring-controlling and analyzing system based on arc-extinguishing harmonic-eliminating cabinet |
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| Publication Number | Publication Date |
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| CN106292419A CN106292419A (en) | 2017-01-04 |
| CN106292419B true CN106292419B (en) | 2018-07-24 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202309066U (en) * | 2011-10-11 | 2012-07-04 | 合肥伟创电力技术有限公司 | Intelligent fast arc-extinction harmonic-extinction line selection and overvoltage protection device |
| CN202676797U (en) * | 2012-04-12 | 2013-01-16 | 安徽龙波电气有限公司 | Arc extinction resonance extinction and overvoltage protection device on-line monitoring system |
| CN203103948U (en) * | 2012-12-24 | 2013-07-31 | 上海合凯电气科技有限公司 | Controller for arc extinction and over-voltage protection device |
| CN203119619U (en) * | 2012-10-12 | 2013-08-07 | 姚如昕 | Microcomputer harmonic elimination device |
| CN104078967A (en) * | 2014-06-11 | 2014-10-01 | 安徽三和电力技术有限公司 | Arc extinction, resonance elimination, line selection and over voltage protection system |
| CN203967750U (en) * | 2014-07-03 | 2014-11-26 | 新疆特变电工自控设备有限公司 | A kind of arc-extinguishing harmonic-eliminating integrated cabinet |
-
2016
- 2016-07-22 CN CN201610583973.1A patent/CN106292419B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202309066U (en) * | 2011-10-11 | 2012-07-04 | 合肥伟创电力技术有限公司 | Intelligent fast arc-extinction harmonic-extinction line selection and overvoltage protection device |
| CN202676797U (en) * | 2012-04-12 | 2013-01-16 | 安徽龙波电气有限公司 | Arc extinction resonance extinction and overvoltage protection device on-line monitoring system |
| CN203119619U (en) * | 2012-10-12 | 2013-08-07 | 姚如昕 | Microcomputer harmonic elimination device |
| CN203103948U (en) * | 2012-12-24 | 2013-07-31 | 上海合凯电气科技有限公司 | Controller for arc extinction and over-voltage protection device |
| CN104078967A (en) * | 2014-06-11 | 2014-10-01 | 安徽三和电力技术有限公司 | Arc extinction, resonance elimination, line selection and over voltage protection system |
| CN203967750U (en) * | 2014-07-03 | 2014-11-26 | 新疆特变电工自控设备有限公司 | A kind of arc-extinguishing harmonic-eliminating integrated cabinet |
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| CN106292419A (en) | 2017-01-04 |
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