CN201601481U - Arc light protecting device - Google Patents
Arc light protecting device Download PDFInfo
- Publication number
- CN201601481U CN201601481U CN2009202828001U CN200920282800U CN201601481U CN 201601481 U CN201601481 U CN 201601481U CN 2009202828001 U CN2009202828001 U CN 2009202828001U CN 200920282800 U CN200920282800 U CN 200920282800U CN 201601481 U CN201601481 U CN 201601481U
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- arc light
- arc
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Abstract
The utility model relates to an arc light protecting device, which has extremely fast action speed, wherein integral protection action time is within few milliseconds and is faster than that of a technical scheme of traditional bus protection. The arc light protecting device comprises an ultraviolet sensor, an arc light insert, an interface FPGA, a current detection insert, an output loop and a DSP, the interface FPGA is directly hung on a bus of the DSP, the output loop is directly connected with an IO interface of the DSP, the current detection insert is connected with an AD module inside the DSP, the arc light insert comprises an optical-to-electrical converter, a comparator and an arc light FPGA, the arc light insert is connected with the DSP through the interface FPGA, and the DSP sends a tripping signal to the output loop to remove a wire inlet circuit breaker at a power source by detecting short circuit current and action information from the arc light sensor and processing and judging acquired data.
Description
Technical field
The utility model relates to and belongs to field of relay protection in power, particularly a kind of arc protection device that is used for quick bus protection.
Background technology
Bus compiles and the hinge that distributes as electric energy, occupies extremely important status in electric power system.The bus reliability of operation will directly have influence on the reliability of whole electrical network.The busbar short-circuit fault will make accident enlarge if can not in time excise, and destroy the stable operation of electric power system, cause disintegrating of electrical network.On the bus of present domestic 220kV and above electric pressure,, generally all be equiped with special quick bus protection, in order to quick excision bus troubles inside the sample space for satisfying the power system transient stability requirement.The bus of 110kV electric pressure is looked its significance level and complexity, the bus protection that some installing is special, and what have does not then adorn.The bus of 35kV and following electric pressure goes out number of lines what, complexity owing to there is not stable problem regardless of it, does not generally install bus protection, and busbar fault is by transformer backup protection (overcurrent protection of composite voltage voltage) excision.
The fault of middle voltage bus bar, though can image height do not press or the extra high voltage system busbar fault causes extremely serious disaster consequences such as system's unstability, large-area power-cuts like that, but its harm also is very big, particularly, deal with improperly also and can cause great economic loss in the station service electrical system in some important customer substations and power plant.Under the situation that adopts the cabinet type power distribution equipment of indoor switch, electric arc also may be lighted the device in the switch cubicle, causes fire, and large tracts of land is burnt controller switching equipment, even causes even more serious consequence.If quick protection is housed, protection action immediately in back takes place in fault, and just with failure removal, then fault can be eliminated fast before electric arc is lighted, and power supply can recover rapidly, and loss can reduce greatly.So,,, press for the protection of configure dedicated middle voltage bus bar according to the requirement of rapidity of relay protection in order to guarantee the safe operation of transformer and bus switchgear.
Summary of the invention
The utility model purpose is to solve the present middle voltage bus bar problem of protection fast; improve a kind of arc protection device; this device has very fast responsiveness, and operate time of its a whole set of protection is in several milliseconds, far faster than the technical scheme of traditional bus protection.Arc fault is taking place, and before cabinet internal pressure and temperature sharply increased, the arc protection device just can send the short circuit current that the trip command excision is supplied with, and made the loss of device damage and personnel injury be reduced to minimum.The arc protection device is protected as middle voltage bus bar, also will provide following benefit to distribution system: main transformer that protection is expensive or station transformer are avoided huge short-circuit current rush and are damaged; Prevent to involve the station and use direct current system, avoid accident expansion and the economic loss that causes.
The technical solution of the utility model is: a kind of arc protection device, this device comprises Ultraviolet sensor, arc light plug-in unit, interface FPGA, current detecting plug-in unit, leaves loop and DSP, interface FPGA directly hangs on the bus of DSP, leaving the loop directly is connected with the IO interface of DSP, the current detecting plug-in unit links to each other with the AD module of DSP inside, the arc light plug-in unit comprises opto-electronic conversion, comparator and arc light FPGA, and the arc light plug-in unit links to each other with DSP by interface FPGA;
Ultraviolet sensor is given arc light plug-in unit with light signal by Optical Fiber Transmission by detecting the ultraviolet composition in the arc light;
Photoelectric conversion section in the arc light plug-in unit is converted to the signal of telecommunication with light signal, the signal of telecommunication of this simulation compares the digital signal that obtains arc light information by comparator and threshold level, arc light FPGA carries out the digital signal of arc light after filtering and the time bias, adopts the mode of coding to send to interface FPGA;
Interface FPGA at first decodes and verification to passing the coded message of coming by arc light FPGA, and correct information transmitted is deposited in buffer memory, reads for DSP;
The current detecting plug-in unit is gathered the magnitude of current of power supply point and is input to DSP;
DSP is by detecting short circuit current and from the action message of arc photosensor, and the data of collecting are handled, judged, sends trip signal and gives and leave the lead-in circuit breaker that the loop is used for excising power supply point.
Described arc protection device utilizes above-mentioned plug-in unit to realize arc protection and breaker fail protection function.Device has only and just sends trip command excision lead-in circuit breaker when detecting arc light and overcurrent simultaneously.When lead-in circuit breaker is failed action excision fault, it will start the breaker fail protection logic, send trip command and excise fault to upstream circuit breaker.
As further improvement of the utility model, the described loop of leaving adopts solid-state relay at a high speed to export, and occurs to device tripping operation outlet from detecting arc light, and the time is controlled in the 4ms.
As further improvement of the utility model, described arc protection device also comprises the man-machine interface plug-in unit, and the IO interface of man-machine interface plug-in unit and DSP is connected, and is used for the customization and the parameter of setting device.
As further improvement of the utility model, described arc protection device also comprises the communication interface plug-in unit, and the IO interface of communication interface plug-in unit DSP connects, and is used for the arc protection device is linked to each other with host computer or backstage.
As further improvement of the utility model, described arc protection device comprises the arc light plug-in unit that plurality of parallel is provided with, and is used to expand the access quantity of Ultraviolet sensor.
Advantage of the present utility model is:
1, the arc light detection probe adopts Ultraviolet sensor, can effectively avoid the interference of other light sources;
2, occur to protection and the outlet time be controlled in the 4ms from detecting arc light.
Description of drawings
Fig. 1 is the arc protection apparatus structure block diagram of the utility model embodiment 1.
Embodiment
Be described further below in conjunction with drawings and Examples.
As shown in Figure 1, a kind of arc protection device based on Ultraviolet sensor, this device comprise DSP, interface FPGA, two arc light plug-in units, two current detecting plug-in units, leave relay plug-in unit etc.; Interface FPGA directly hangs on the bus of DSP, leave relay, communication interface plug-in unit and man-machine interface plug-in unit directly is connected with the IO interface of DSP, the current detecting plug-in unit links to each other with the AD module of DSP inside, the arc light plug-in unit comprises opto-electronic conversion, comparator and arc light FPGA, and the arc light plug-in unit links to each other with DSP by interface FPGA.
Ultraviolet sensor is given arc light plug-in unit with light signal by Optical Fiber Transmission by detecting the ultraviolet composition in the arc light.
Photoelectric conversion section in the arc light plug-in unit is converted to the signal of telecommunication with light signal, the signal of telecommunication of this simulation compares the digital signal that obtains arc light information by comparator and threshold level, arc light FPGA carries out the digital signal of arc light after filtering and the time bias, adopts the mode of coding to send to interface FPGA.Each arc light plug-in unit can insert 1-8 Ultraviolet sensor.
Interface FPGA at first decodes and verification to passing the coded message of coming by arc light FPGA, and correct information transmitted is deposited in buffer memory, reads for DSP.
The current detecting plug-in unit is gathered the magnitude of current of power supply point and is input to DSP.
The man-machine interface plug-in unit is used for the customization and the parameter of setting device.
The communication interface plug-in unit is used for linking to each other with the host computer or the backstage of device.
The arc protection device is by detecting short circuit current and from the action message of arc photosensor, and the data of collecting are handled, judged, sends trip signal and gives and leave the lead-in circuit breaker that the relay plug-in unit is used for excising power supply point.
Claims (5)
1. arc protection device, it is characterized in that, this device comprises Ultraviolet sensor, arc light plug-in unit, interface FPGA, current detecting plug-in unit, leaves loop and DSP, interface FPGA directly hangs on the bus of DSP, leaves the loop, directly is connected with the IO interface of DSP, the current detecting plug-in unit links to each other with the AD module of DSP inside, the arc light plug-in unit comprises opto-electronic conversion, comparator and arc light FPGA, and the arc light plug-in unit links to each other with DSP by interface FPGA;
Ultraviolet sensor is given arc light plug-in unit with light signal by Optical Fiber Transmission by detecting the ultraviolet composition in the arc light; Photoelectric conversion section in the arc light plug-in unit is converted to the signal of telecommunication with light signal, the signal of telecommunication of this simulation compares the digital signal that obtains arc light information by comparator and threshold level, arc light FPGA carries out the digital signal of arc light after filtering and the time bias, adopts the mode of coding to send to interface FPGA;
Interface FPGA at first decodes and verification to passing the coded message of coming by arc light FPGA, and correct information transmitted is deposited in buffer memory, reads for DSP;
The current detecting plug-in unit is gathered the magnitude of current of power supply point and is input to DSP;
DSP is by detecting short circuit current and from the action message of arc photosensor, and the data of collecting are handled, judged, sends trip signal and gives and leave the lead-in circuit breaker that the loop is used for excising power supply point.
2. according to right 1 desired arc protection device, it is characterized in that the described loop of leaving adopts solid-state relay at a high speed to export.
3. according to right 1 desired arc protection device, it is characterized in that described arc protection device also comprises the man-machine interface plug-in unit, the IO interface of man-machine interface plug-in unit and DSP is connected, and is used for the customization and the parameter of setting device.
4. according to right 1 desired arc protection device, it is characterized in that described arc protection device also comprises the communication interface plug-in unit, the IO interface of communication interface plug-in unit DSP connects, and is used for the arc protection device is linked to each other with host computer or backstage.
5. according to right 1 desired arc protection device, it is characterized in that described arc protection device comprises the arc light plug-in unit that plurality of parallel is provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202828001U CN201601481U (en) | 2009-12-31 | 2009-12-31 | Arc light protecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202828001U CN201601481U (en) | 2009-12-31 | 2009-12-31 | Arc light protecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201601481U true CN201601481U (en) | 2010-10-06 |
Family
ID=42812541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202828001U Expired - Lifetime CN201601481U (en) | 2009-12-31 | 2009-12-31 | Arc light protecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201601481U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103424664A (en) * | 2012-05-14 | 2013-12-04 | 南京弘毅电气自动化有限公司 | Optical sensor achieving switch cabinet flashover detection |
| CN104237674A (en) * | 2014-08-18 | 2014-12-24 | 安徽罗伯特科技股份有限公司 | Portable arc light protecting calibration device |
| CN104993461A (en) * | 2015-06-23 | 2015-10-21 | 江苏金智科技股份有限公司 | Relay protection device providing electric arc light protection function |
| CN106199294A (en) * | 2016-08-31 | 2016-12-07 | 中铁工程设计咨询集团有限公司 | A kind of arc light protecting device |
| CN106887827A (en) * | 2017-04-07 | 2017-06-23 | 宁波华创锐科智能科技有限公司 | A kind of main control unit for arc protection |
| RU201607U1 (en) * | 2020-09-30 | 2020-12-23 | Общество с ограниченной ответственностью Научно-Производственное Предприятие «ПРОЭЛ» (ООО НПП «ПРОЭЛ») | Arc protection device |
-
2009
- 2009-12-31 CN CN2009202828001U patent/CN201601481U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103424664A (en) * | 2012-05-14 | 2013-12-04 | 南京弘毅电气自动化有限公司 | Optical sensor achieving switch cabinet flashover detection |
| CN104237674A (en) * | 2014-08-18 | 2014-12-24 | 安徽罗伯特科技股份有限公司 | Portable arc light protecting calibration device |
| CN104237674B (en) * | 2014-08-18 | 2017-08-29 | 安徽罗伯特科技股份有限公司 | A kind of portable electric arc protection caliberating device |
| CN104993461A (en) * | 2015-06-23 | 2015-10-21 | 江苏金智科技股份有限公司 | Relay protection device providing electric arc light protection function |
| CN104993461B (en) * | 2015-06-23 | 2017-11-28 | 江苏金智科技股份有限公司 | A kind of protective relaying device that electric arc protection function is provided |
| CN106199294A (en) * | 2016-08-31 | 2016-12-07 | 中铁工程设计咨询集团有限公司 | A kind of arc light protecting device |
| CN106887827A (en) * | 2017-04-07 | 2017-06-23 | 宁波华创锐科智能科技有限公司 | A kind of main control unit for arc protection |
| RU201607U1 (en) * | 2020-09-30 | 2020-12-23 | Общество с ограниченной ответственностью Научно-Производственное Предприятие «ПРОЭЛ» (ООО НПП «ПРОЭЛ») | Arc protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101006 |