CN104953567B - A kind of arc light protection system and method for being used in switch cubicle feed out circuit - Google Patents
A kind of arc light protection system and method for being used in switch cubicle feed out circuit Download PDFInfo
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- CN104953567B CN104953567B CN201510413434.9A CN201510413434A CN104953567B CN 104953567 B CN104953567 B CN 104953567B CN 201510413434 A CN201510413434 A CN 201510413434A CN 104953567 B CN104953567 B CN 104953567B
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Abstract
The invention discloses a kind of arc light protection system and method for being used in switch cubicle feed out circuit, the system includes CPU, arc photosensor, current signal, pure arc light selecting switch, button, 485 communication modules, arc photosensor self-test indicator lamp, action indicator and exit relay；CPU connections arc photosensor, current signal, arc photosensor self-test indicator lamp, action indicator and exit relay；Arc photosensor and current signal input a signal into CPU, and CPU outputs a signal to arc photosensor self-test indicator lamp, action indicator and exit relay；CPU is connected with pure arc light selecting switch, button and 485 communication modules；Invention increases the self-checking function of arc light passage, each corresponding arc photosensor passage of self-test indicator lamp, when the passage accesses arc photosensor, the arc photosensor self-test indicator lamp corresponding with the passage will be lighted, and can intuitively see the access situation of device arc light passage；Can the road feeder line of independent protective 6, individually tripping operation.
Description
Technical field
The invention belongs to protecting electrical power system field, more particularly to a kind of arclight for being used in switch cubicle feed out circuit is protected
Protecting system and method.
Background technology
It is reported that annual switch cubicle just has hundreds of faces to be burned out in China's power system.It is because special without installing mostly
The protection for feed line system of door, fail quick infringement caused by timely cutting off failure.Because being fitted without protection for feed line system, when
When feeder line in switch cubicle occurs short-circuit, just can not timely it find and outage, so that failure further spreads, often
Failure is set to be developed, expand, so as to cause huge economic loss.
A kind of arc light protection system for being used in switch cubicle feed out circuit and method are to detect that arclight is sentenced as protection
According to alert or trip command of just being transmitted messages in the single-phase arcing over the ground of feeder line, early tripping operation is reduced to breakdown loss minimum, the later stage one
As only need to simply recover insulation equipment can just be put into operation again, so as to greatly reduce power off time and maintenance cost,
With very high economic value and very big practical value.
A key link of the protection for feed line as guarantee operation of power networks, the running quality and effect of power network can be improved conscientiously
Rate, therefore the research of feeder line electric arc protection has extremely important realistic meaning.
The line protective devices of the middle-low voltage switch cabinet occurred in the market both for middle voltage bus bar protection, specially
Door for feeder line electric arc light protection technique all in conceptual phase, the technology of existing arc light protective device is deposited in the market
The defects of have：
1. function is relatively simple；
2. the self-checking function without arc light passage；
3. the passage for detecting arc light is less；
4. the feeder protection equipment no current criterion having；
5. even if what is had adds electric current criterion, but the throwing of electric current criterion is moved back and may be selected, it is necessary to and the combination of arc light criterion
Use；
6. it must be used cooperatively with master control, it is impossible to separately protected outlet.
The content of the invention
Goal of the invention：It is used in switch cubicle feed out the arc light protection system and method for circuit the invention provides a kind of,
Arc light protective device is just for bus protection to solve in the prior art, the problem of without for protection for feed line.
Technical scheme：To achieve these goals, the present invention uses following technical scheme：
It is a kind of to be used in switch cubicle feeding out the arc light protection system of circuit, including CPU, arc photosensor, current signal,
Pure arc light selecting switch, button, 485 communication modules, arc photosensor self-test indicator lamp, action indicator and exit relay；
Wherein CPU connections arc photosensor, current signal, arc photosensor self-test indicator lamp, action indicator and outlet
Relay；
Arc photosensor and current signal input a signal into CPU, and CPU outputs a signal to arc photosensor self-test instruction
Lamp, action indicator and exit relay；
CPU is also associated with pure arc light selecting switch, button and 485 communication modules.
Further, the CPU is 32 bit CPUs, has house dog inside it, and CPU master chip has in-line memory, also
Receive transmitter with timer, analog/digital converter ADC, serial peripheral equipment interface SPI, I2C buses, universal synchronous/asynchronous
USART, quick I/O interfaces and communication interface.
Further, the arc photosensor be arranged on switch cubicle bus-bar room in or feeder cabinet cable vault, support 12 tunnels
Arc light inputs, and could support up 6 circuit arc light inputs, and each feeder line accesses 2 arc probes.
Further, the current signal supports 6 road electric current criterion accesses.
Further, the pure arc light selecting switch is 6 road toggle switch.
Further, 485 communication module is furnished with RS-485 communication interfaces, and is equipped with communication indicator lamp.
Further, the arc photosensor self-test indicator lamp is 12 tunnels, and each arc photosensor self-test indicator lamp is corresponding
One arc photosensor passage.
Further, the action indicator includes 6 tripping operation lamps, and each lamp that trips corresponds to two-way arc probe respectively.
Further, the exit relay is provided with No. 6 relay outputs, the road feeder line of independent protective 6, individually tripping operation.
Further, the button is the reset key of signal.
A kind of electric arc light protection method for being used in switch cubicle feed out circuit, when pure arc protection, passes through pure arc first
Light selecting switch exits current protecting function, when any one lonely optical sensor detects arc optical signal, corresponding thereto
Exit relay act and light tripping operation lamp corresponding thereto；
When arc light criterion and electric current criterion are protected, current protecting function is put into by pure arc light selecting switch first,
And current signal is detected；Simultaneously when a lonely optical sensor detects arc optical signal, outlet relay corresponding thereto
Device acts and lights tripping operation lamp corresponding thereto.
Beneficial effect：Invention increases the self-checking function of arc light passage, the corresponding arc light of each self-test indicator lamp passes
Sensor passage, when the passage accesses arc photosensor, the arc photosensor self-test indicator lamp corresponding with the passage will point
It is bright, it can intuitively see the access situation of device arc light passage.And, can be square by self-test lamp when plant failure is investigated
Just, fast and accurately judge whether this partial circuit is normal, improve the ageing of work；To detect arclight as protection
Criterion, alert or trip command of just being transmitted messages in the single-phase arcing over the ground of feeder line, avoids failure from further spreading, is developed, expands, from
And cause huge economic loss；Installation feeder line arc light protecting system can find failure early and tripping is reduced to breakdown loss
Minimum, the later stage typically only needs simply to recover to insulate that just equipment can put into operation again, so as to greatly reduce power off time
And maintenance cost；The system moves back selectable principle using the throwing of electric current criterion, can both combine arc light criterion and be used together,
Pure arc optical signal input criterion can be selected, realizes multi-functional alternative；Arc light passage is increased to 12 tunnels by the system,
12 road arc light inputs are supported, could support up 6 circuits (each feeder line accesses 2 arc probes) arc light input；Possess 6 tunnel relays
Device exports.Can the road feeder line of independent protective 6, individually tripping operation；Can selective tripping fault feeder；The present invention shows for domestic user
Actual conditions, using arclight as Protection criteria, feeder cabinet that trip command breaks down to isolate can be sent out without influenceing
Other outgoing line cabinets under same section of bus, are reduced to breakdown loss minimum, greatly reduce power off time and maintenance cost, tool
There are very high economic value and very big practical value, the current in the market of system and method proposed by the present invention does not occur also,
The technological gap in this field of feeder line electric arc protection is filled up, the present invention has initiative, frontier nature, practicality.
Brief description of the drawings
Fig. 1 is the system principle schematic diagram of the present invention；
Fig. 2 is the electric arc protection logic chart of feeder line 1 of the present invention.
Embodiment
The present invention is further described below in conjunction with the accompanying drawings.
It is a kind of to be used in switch cubicle feeding out the arc light protection system of circuit, including CPU, arc photosensor, current signal,
Pure arc light selecting switch, button, 485 communication modules, arc photosensor self-test indicator lamp, action indicator and exit relay；
Wherein CPU connections arc photosensor, current signal, arc photosensor self-test indicator lamp, action indicator and outlet
Relay；
Arc photosensor and current signal input a signal into CPU, and CPU outputs a signal to arc photosensor self-test instruction
Lamp, action indicator and exit relay；
CPU is also associated with pure arc light selecting switch, button and 485 communication modules.
The CPU is 32 bit CPUs, has house dog inside it, effectively prevents program fleet, and CPU master chip has embedded
Memory, also with timer, analog/digital converter ADC, serial peripheral equipment interface SPI, I2C buses, universal synchronous/asynchronous
Receive transmitter USART, quick I/O interfaces and communication interface, there is remarkable calculating performance and the response of advanced interruption system
Function.
The arc photosensor is arranged in the bus-bar room of switch cubicle or feeder cabinet cable vault, supports 12 road arc light inputs,
6 circuit arc light inputs are could support up, each feeder line accesses 2 arc probes；Arc photosensor gathers for failure arc light, is
Passive arc light detection sensor；When arc fault occurs, illuminance increases considerably, and arc photosensor is directly by optical signal
It is transmitted to feeder line arc light collection protection location.
The current signal supports 6 road electric current criterion accesses, using logic level acquisition mode.Set by toggle switch
Electric current criterion is thrown and moves back pattern.
The function of toggle switch such as following table：
The pure arc light selecting switch is 6 road toggle switch；Moved back by the throwing of 6 road toggle switch control electric current criterions, when
It is now pure arc light criterion when electric current criterion is exited by toggle switch selection.
485 communication module is furnished with RS-485 communication interfaces, can carry out remote control, be led to using the MODBUS of standard
Interrogate agreement.But other agreements can also be realized, and provide a user open communications protocol.And communication indicator lamp is equipped with, and it is logical
News indicator lamp is green light, is flashed when there is communication data.
The arc photosensor self-test indicator lamp is 12 tunnels, and the corresponding arc light of each arc photosensor self-test indicator lamp passes
Sensor passage, arc photosensor self-test indicator lamp are green light, when the passage accesses arc photosensor, corresponding arc light sensor
Device indicator lamp is lighted, and shows as green light Chang Liang；Arc photosensor self-test indicator lamp extinguishes when arc photosensor does not access.
The action indicator includes 6 tripping operation lamps, and each lamp that trips corresponds to two-way arc probe respectively, and tripping operation lamp is red
Lamp, extinguish during normal operation, lighted when protection system has tripping operation to export.
The exit relay is provided with No. 6 relay device outputs, the road feeder line of independent protective 6, individually tripping operation；Jump arc light outlet
The lock time is less than 5ms；6 road independent contacts are outputed, the corresponding relation combined with 12 roads probe：1st, 2 roads probe is corresponding outputs 1；
3rd, 4 roads probe is corresponding outputs 2；5th, 6 roads probe is corresponding outputs 3；7th, 8 roads probe is corresponding outputs 4；9th, 10 roads probe pair
5 should be outputed；11st, 12 roads probe is corresponding outputs 6.
The button is the reset key of signal；When the lamp that trips is lighted, tripping operation lamp is closed by reset key.
A kind of electric arc light protection method for being used in switch cubicle feed out circuit, when pure arc protection, passes through pure arc first
Light selecting switch exits current protecting function, when any one lonely optical sensor detects arc optical signal, corresponding thereto
Exit relay act and light tripping operation lamp corresponding thereto；
When arc light criterion and electric current criterion are protected, current protecting function is put into by pure arc light selecting switch first,
And current signal is detected；Simultaneously when a lonely optical sensor detects arc optical signal, outlet relay corresponding thereto
Device acts and lights tripping operation lamp corresponding thereto.
Feeder line electric arc protection logic:
Logic chart is as shown in Figure 2.By taking the 1st road relay protective scheme as an example, other road logics are identical.
Exit relay action is divided into two kinds of situations：
1st, pure arc protection.Now need to exit the defencive function of electric current 1 by toggle switch, when the sensor of arc light 1 and
The sensor of arc light 2, as long as one of them detects arc optical signal, then tripping operation outlet 1 acts and lights tripping operation lamp 1.
2nd, arc light criterion and electric current criterion are protected.Now need to open the light by dial-up and put into the defencive function of electric current 1, and examine
Current signal is measured；Work as the sensor of arc light 1 and the sensor of arc light 2 simultaneously, as long as one of them detects arc optical signal, then jump
Lock outlet 1 acts and lights tripping operation lamp 1.
The specific method of the present invention：
When arc photosensor is installed on product, CPU lights corresponding arc photosensor self-test indicator lamp.Work on the spot people
As the case may be, by toggle switch, selection exports the concrete form of the actuating of relay, when arc fault occurs, light to member
Illumination increases considerably, during arc photosensor collection arc optical signal, CPU can with according to toggle switch state, current signal state, from
It is dynamic to judge specific relay protective scheme, and light corresponding action indicator in time and send exit relay signal, jump early
Lock, disengagement failure loop, it is reduced to breakdown loss minimum.
After field failure is investigated, staff presses involution button, by system involution, system during failure next time
It will continue to act by relay protective scheme and export.
Described above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (4)
- A kind of 1. arc light protection system for being used in switch cubicle feed out circuit, it is characterised in that：Including CPU, arc photosensor, Current signal, pure arc light selecting switch, button, 485 communication modules, arc photosensor self-test indicator lamp, action indicator and go out Mouth relay；Wherein CPU connections arc photosensor, current signal, arc photosensor self-test indicator lamp, action indicator and outlet relay Device；Arc photosensor and current signal input a signal into CPU, CPU output a signal to arc photosensor self-test indicator lamp, Action indicator and exit relay；CPU is also associated with pure arc light selecting switch, button and 485 communication modules；The arc photosensor is arranged in the bus-bar room of switch cubicle or feeder cabinet cable vault, supports 12 road arc light inputs, at most 6 circuit arc light inputs are supported, each feeder line accesses 2 arc probes；The current signal supports 6 road electric current criterion accesses, and using logic level acquisition mode, electric current is set by toggle switch Criterion is thrown and moves back pattern；The pure arc light selecting switch is 6 road toggle switch, is moved back by the throwing of 6 road toggle switch control electric current criterions, works as electric current It is now pure arc light criterion when criterion is exited by toggle switch selection；The arc photosensor self-test indicator lamp is 12 tunnels, the corresponding arc photosensor of each arc photosensor self-test indicator lamp Passage, arc photosensor self-test indicator lamp are green light, and when the passage accesses arc photosensor, corresponding arc photosensor refers to Show that lamp is lighted, show as green light Chang Liang；Arc photosensor self-test indicator lamp extinguishes when arc photosensor does not access；The action indicator includes 6 tripping operation lamps, and each lamp that trips corresponds to two-way arc probe respectively, and tripping operation lamp is red light, Extinguish during normal operation, lighted when protection system has tripping operation to export；The exit relay is provided with No. 6 relay outputs, the road feeder line of independent protective 6, individually tripping operation；Arc light exports the trip time Less than 5ms；6 road independent contacts are outputed, the corresponding relation combined with 12 roads probe：1st, 2 roads probe is corresponding outputs 1；3rd, 4 Road probe is corresponding to output 2；5th, 6 roads probe is corresponding outputs 3；7th, 8 roads probe is corresponding outputs 4；9th, 10 roads probe is corresponding opens Go out 5；11st, 12 roads probe is corresponding outputs 6；The button is the reset key of signal, and when the lamp that trips is lighted, tripping operation lamp is closed by reset key.
- 2. the arc light protection system according to claim 1 for being used in switch cubicle feed out circuit, it is characterised in that：It is described CPU is 32 bit CPUs, has house dog inside it, CPU master chip has in-line memory, also with timer, analog/digital Converter ADC, serial peripheral equipment interface SPI, I2C buses, universal synchronous/asynchronous receive transmitter USART, quick I/O interfaces and Communication interface.
- 3. the arc light protection system according to claim 1 for being used in switch cubicle feed out circuit, it is characterised in that：It is described 485 communication modules are furnished with RS-485 communication interfaces, and are equipped with communication indicator lamp, and it is green light to communicate indicator lamp, when there is communication Flashed during data.
- It is 4. a kind of based on any described protections for being used in switch cubicle feed out the arc light protection system of circuit of claim 1-3 Method, it is characterised in that：When pure arc protection, current protecting function is exited by pure arc light selecting switch first, when any one lonely light passes When sensor detects arc optical signal, exit relay corresponding thereto acts and lights tripping operation lamp corresponding thereto；When arc light criterion and electric current criterion are protected, current protecting function is put into by pure arc light selecting switch first, and examines Current signal is measured；Simultaneously when a lonely optical sensor detects arc optical signal, exit relay corresponding thereto moves Make and light tripping operation lamp corresponding thereto；After field failure is investigated, involution button is pressed, by system involution, system will continue by protection during failure next time Logical action exports.
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| CN201510413434.9A CN104953567B (en) | 2015-07-14 | 2015-07-14 | A kind of arc light protection system and method for being used in switch cubicle feed out circuit |
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| CN201510413434.9A CN104953567B (en) | 2015-07-14 | 2015-07-14 | A kind of arc light protection system and method for being used in switch cubicle feed out circuit |
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| CN104953567B true CN104953567B (en) | 2017-12-01 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201590653U (en) * | 2009-12-25 | 2010-09-22 | 杭州瑞胜电气有限公司 | Photoelectric arc light protection system |
| CN201590654U (en) * | 2009-12-25 | 2010-09-22 | 杭州瑞胜电气有限公司 | Main control unit of photoelectric arc light protection system |
| CN102298106A (en) * | 2011-05-19 | 2011-12-28 | 河海大学 | FPGA (field programmable gate array)-based arc monitoring system in valve hall |
| CN203589714U (en) * | 2013-11-26 | 2014-05-07 | 成都工百利自动化设备有限公司 | Feeder-line-type electric arc light protection device |
| CN204794054U (en) * | 2015-07-14 | 2015-11-18 | 南京中凯光电技术有限公司 | A arc light protection system that is used for cubical switchboard cooking to go out circuit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08196040A (en) * | 1995-01-13 | 1996-07-30 | Toshiba Corp | Distribution power supply system |
-
2015
- 2015-07-14 CN CN201510413434.9A patent/CN104953567B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201590653U (en) * | 2009-12-25 | 2010-09-22 | 杭州瑞胜电气有限公司 | Photoelectric arc light protection system |
| CN201590654U (en) * | 2009-12-25 | 2010-09-22 | 杭州瑞胜电气有限公司 | Main control unit of photoelectric arc light protection system |
| CN102298106A (en) * | 2011-05-19 | 2011-12-28 | 河海大学 | FPGA (field programmable gate array)-based arc monitoring system in valve hall |
| CN203589714U (en) * | 2013-11-26 | 2014-05-07 | 成都工百利自动化设备有限公司 | Feeder-line-type electric arc light protection device |
| CN204794054U (en) * | 2015-07-14 | 2015-11-18 | 南京中凯光电技术有限公司 | A arc light protection system that is used for cubical switchboard cooking to go out circuit |
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Address after: 210028 A42, building N105, 199 East shogunate Road, Gulou District, Jiangsu, Nanjing Applicant after: NANJING ZHONGKAI OPTOELECTRONICS TECHNOLOGY Co.,Ltd. Address before: 210028 A42, building N105, 199 East shogunate Road, Gulou District, Jiangsu, Nanjing Applicant before: NANJING ZHONGKAI PHOTOELECTRIC TECHNOLOGY Co.,Ltd. |
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Inventor after: Li Xingbin Inventor after: Ma Jun Inventor after: Guo Liran Inventor after: Liu Weihao Inventor after: Jin Chaojie Inventor after: Jiang Yingping Inventor after: Xu Yong Inventor after: Cheng Li Inventor after: Yang Wenying Inventor after: Pan Gaiduo Inventor after: Liu Guihua Inventor after: Tan Longjian Inventor after: Wang Yao Inventor after: Hu Yali Inventor after: Xu Degao Inventor after: Zhang Wei Inventor after: Luo Shidong Inventor after: He Baochang Inventor before: Li Xingbin Inventor before: Ma Jun Inventor before: Guo Liran Inventor before: Liu Weihao Inventor before: Jin Chaojie Inventor before: Jiang Yingping Inventor before: Xu Yong Inventor before: Cheng Li Inventor before: Liu Guihua Inventor before: Tan Longjian Inventor before: Wang Yao Inventor before: Hu Yali Inventor before: Xu Degao Inventor before: Zhang Wei Inventor before: Luo Shidong Inventor before: He Baochang |
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Effective date of registration: 20240503 Address after: Room 106, Building 42, No. 199 Shufu East Road, Gulou District, Nanjing City, Jiangsu Province, 210000 Patentee after: NANJING ZHONGKAI ELECTRIC TECHNOLOGY Co.,Ltd. Country or region after: China Address before: 210028, Building A42, N105, No.199 Shofu East Road, Gulou District, Nanjing City, Jiangsu Province Patentee before: NANJING ZHONGKAI OPTOELECTRONICS TECHNOLOGY Co.,Ltd. Country or region before: China |
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