CN204794054U - A arc light protection system that is used for cubical switchboard cooking to go out circuit - Google Patents
A arc light protection system that is used for cubical switchboard cooking to go out circuit Download PDFInfo
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- CN204794054U CN204794054U CN201520508002.1U CN201520508002U CN204794054U CN 204794054 U CN204794054 U CN 204794054U CN 201520508002 U CN201520508002 U CN 201520508002U CN 204794054 U CN204794054 U CN 204794054U
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- 230000004224 protection Effects 0.000 title claims abstract description 38
- 238000010411 cooking Methods 0.000 title abstract 2
- 238000004891 communication Methods 0.000 claims abstract description 24
- 230000009471 action Effects 0.000 claims abstract description 21
- 238000007689 inspection Methods 0.000 claims description 21
- 239000000523 sample Substances 0.000 claims description 12
- 230000001681 protective effect Effects 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 230000000875 corresponding effect Effects 0.000 description 14
- 230000006870 function Effects 0.000 description 8
- 238000010891 electric arc Methods 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005316 response function Methods 0.000 description 1
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Abstract
The utility model discloses an arc light protection system that is used for cubical switchboard cooking to go out circuit, the system includes CPU, arc light sensor, current signal, pure arc light select switch, button, 485 communication module, arc light sensor self -checking pilot lamp, action pilot lamp and exit relay, CPU connects arc light sensor, current signal, arc light sensor self -checking pilot lamp, action pilot lamp and exit relay, arc light sensor and current signal arrive arc light sensor self -checking pilot lamp, action pilot lamp and exit relay with signal input to CPU, CPU with signal output, CPU is connected with pure arc light select switch, button and 485 communication module, the utility model discloses increase arc light passageway self -checking function, every self -checking pilot lamp corresponds an arc light sensor passageway, when this passageway inserts arc light sensor, will light with the arc light sensor self -checking pilot lamp that this passageway is corresponding, can directly perceivedly see the access condition of device arc light passageway, can independently protect 6 way feeders, alone the tripping operation.
Description
Technical field
The utility model belongs to protecting electrical power system field, particularly a kind of arc light protection system for feeding out circuit in switch cubicle.
Background technology
It is reported, in China's electric power system, annual switch cubicle just has hundreds of face to be burnt.Be because do not install special protection for feed line system mostly, fail to excise timely fast the infringement that fault causes.Because do not install protection for feed line system, when the feeder line in switch cubicle is short-circuited, just cannot find timely and outage, to such an extent as to fault spreads further, often make fault be developed, expand, thus cause huge economic loss.
A kind of arc light protection system for feeding out circuit in switch cubicle and method are to detect that arclight is for Protection criteria; just transmit messages when the single-phase arcing over the ground of feeder line and warn or trip command; tripping operation early makes breakdown loss reduce to minimum; later stage generally only needs simple recovery insulation just equipment can be put into operation again; thus greatly reduce interruption duration and maintenance cost, there is very high economic worth and very large practical value.
Protection for feed line is as the key link ensureing operation of power networks, and conscientiously can improve running quality and the efficiency of electrical network, 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 are all the protections for middle voltage bus bar, specially for the electric arc light protection technique of feeder line all in conceptual phase, the defect that the technology of existing arc light protective device exists in the market has:
1. function ratio is more single;
2. without the self-checking function of arc light passage;
3. the passage detecting arc light is less;
4. the feeder protection equipment no current criterion had;
Even if what 5. have adds electric current criterion, but the throwing of electric current criterion is moved back and can not be selected, and must combinationally use with arc light criterion;
6. must and master control with the use of, can not separately protected outlet.
Utility model content
Utility model object: the utility model provides a kind of arc light protection system for feeding out circuit in switch cubicle, to solve in prior art arc light protective device all only for bus protection, and not for the problem of protection for feed line.
Technical scheme: to achieve these goals, the utility model by the following technical solutions:
For feeding out an arc light protection system for circuit in switch cubicle, comprise CPU, arc photosensor, current signal, pure arc light selector switch, button, 485 communication modules, arc photosensor self-inspection indicator light, action indicator and exit relay;
Wherein CPU connects arc photosensor, current signal, arc photosensor self-inspection indicator light, action indicator and exit relay;
Signal is input to CPU by arc photosensor and current signal, and signal is outputted to arc photosensor self-inspection indicator light, action indicator and exit relay by CPU;
CPU is also connected with pure arc light selector switch, button and 485 communication modules.
Further, described CPU is 32 bit CPUs, there is house dog its inside, the master chip of CPU has in-line memory, also has timer, analog/digital converter ADC, serial peripheral equipment interface SPI, I2C bus, universal synchronous/asynchronous accept transmitter USART, fast I/O interface and communication interface.
Further, in the bus-bar room that described arc photosensor is arranged on switch cubicle or feeder cabinet cable vault, support 12 road arc lights inputs, support at most 6 circuit arc lights inputs, each feeder line accesses 2 arc probe.
Further, described current signal supports 6 road electric current criterion accesses.
Further, described pure arc light selector switch is 6 road toggle switchs.
Further, described 485 communication modules are furnished with RS-485 communication interface, and are equipped with communication indicator light.
Further, described arc photosensor self-inspection indicator light is 12 tunnels, the corresponding arc photosensor passage of each arc photosensor self-inspection indicator light.
Further, described action indicator comprises 6 tripping operation lamps, and each tripping operation lamp is corresponding two-way arc probe respectively.
Further, described exit relay is provided with No. 6 relays and exports, and independent protective 6 road feeder line, trips separately.
Further, described button is the reset key of signal.
Beneficial effect: the utility model adds the self-checking function of arc light passage, the corresponding arc photosensor passage of each self-inspection indicator light, when this passage access arc photosensor, the arc photosensor self-inspection indicator light corresponding with this passage will be lighted, and can see the access situation of auto levelizer arc light passage intuitively.And when plant failure is investigated, can judge that whether this partial circuit is normal easily and fast, accurately by self-inspection lamp, improve the ageing of work; To detect that arclight is for Protection criteria, just transmit messages when the single-phase arcing over the ground of feeder line alert or trip command, avoid fault to spread further, developed, expand, thus cause huge economic loss; Install feeder line arc light protecting system to find fault early and trip to make breakdown loss reduce to minimum, the later stage generally only need simply be recovered to insulate and just equipment can be put into operation again, thus greatly reduces interruption duration and maintenance cost; This system adopts the throwing of electric current criterion to move back selectable principle, both can combine arc light criterion and use together, pure arc optical signal also can be selected to drop into criterion, achieve multi-functional alternative; Arc light passage is increased to 12 tunnels by this system, supports 12 road arc light inputs, supports at most 6 circuit (each feeder line accesses 2 arc probe) arc light inputs; Possess No. 6 relays to export.Can independent protective 6 road feeder line, trip separately; Can selectivity tripping fault feeder; The utility model is for the actual conditions at domestic user scene; take arclight as Protection criteria; other outgoing line cabinet that trip command does not affect under same section of bus to isolate the feeder cabinet that breaks down can be sent out; breakdown loss is made to reduce to minimum; greatly reduce interruption duration and maintenance cost; there is very high economic worth and very large practical value; the market that the system and method that the utility model proposes is current does not also occur; filled up the technological gap in this field of feeder line electric arc protection, the utility model has initiative, frontier nature, practicality.
Accompanying drawing explanation
Fig. 1 is system principle schematic diagram of the present utility model;
Fig. 2 is feeder line 1 electric arc protection logic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
For feeding out an arc light protection system for circuit in switch cubicle, comprise CPU, arc photosensor, current signal, pure arc light selector switch, button, 485 communication modules, arc photosensor self-inspection indicator light, action indicator and exit relay;
Wherein CPU connects arc photosensor, current signal, arc photosensor self-inspection indicator light, action indicator and exit relay;
Signal is input to CPU by arc photosensor and current signal, and signal is outputted to arc photosensor self-inspection indicator light, action indicator and exit relay by CPU;
CPU is also connected with pure arc light selector switch, button and 485 communication modules.
Described CPU is 32 bit CPUs, there is house dog its inside, effectively prevent program fleet, the master chip of CPU has in-line memory, also there is timer, analog/digital converter ADC, serial peripheral equipment interface SPI, I2C bus, universal synchronous/asynchronous accept transmitter USART, fast I/O interface and communication interface, there is remarkable calculated performance and advanced interrupt system response function.
In the bus-bar room that described arc photosensor is arranged on switch cubicle or feeder cabinet cable vault, support 12 road arc lights inputs, support at most 6 circuit arc lights inputs, each feeder line accesses 2 arc probe; Arc photosensor is used for the collection of fault arc light, is passive arc light acquisition sensor; When there is arc fault, illuminance increases considerably, and light signal is directly passed to feeder line arc light and gathered protected location by arc photosensor.
Described current signal supports 6 road electric current criterion accesses, adopts logic level acquisition mode.The throwing of electric current criterion is set by toggle switch and moves back pattern.
The function of toggle switch is as following table:
Described pure arc light selector switch is 6 road toggle switchs; The throwing being controlled electric current criterion by 6 road toggle switchs is moved back, and when electric current criterion is selected to exit by toggle switch, is now pure arc light criterion.
Described 485 communication modules are furnished with RS-485 communication interface, can carry out Long-distance Control, adopt the MODBUS communications protocol of standard.But other agreements also can realize, and provide the communications protocol opened to user.And be equipped with communication indicator light, and communication indicator light is green light, glimmers when there being communication data.
Described arc photosensor self-inspection indicator light is 12 tunnels, the corresponding arc photosensor passage of each arc photosensor self-inspection indicator light, arc photosensor self-inspection indicator light is green light, when this passage access arc photosensor, corresponding arc photosensor indicator light is lighted, and shows as green light Chang Liang; When arc photosensor does not access, arc photosensor self-inspection indicator light extinguishes.
Described action indicator comprises 6 tripping operation lamps, and each tripping operation lamp is corresponding two-way arc probe respectively, and tripping operation lamp is red light, extinguishes during normal operation, lights when protection system has during tripping operation outlet.
Described exit relay is provided with No. 6 relay devices and exports, and independent protective 6 road feeder line, trips separately; The arc light outlet trip time is less than 5ms; 6 road independent contacts are outputed, and to pop one's head in the corresponding relation combined with 12 tunnels: 1st, pop one's head in and correspondingly output 1 in 2 tunnels; 3rd, 4 road probe correspondences output 2; 5th, 6 road probe correspondences output 3; 7th, 8 road probe correspondences output 4; 9th, 10 road probe correspondences output 5; 11st, 12 road probe correspondences output 6.
Described button is the reset key of signal; When the lamp that trips is lighted, close tripping operation lamp by reset key.
A kind of electric arc light protection method for feeding out circuit in switch cubicle, when pure arc protection, first by pure arc light selector switch, current protecting function is exited, when any one lonely light sensors is to arc optical signal, exit relay action corresponding thereto the tripping operation lamp lighted corresponding thereto;
When arc light criterion and electric current criterion are protected, first by pure arc light selector switch, current protecting function is dropped into, and current signal detected; Simultaneously when a lonely light sensors is to arc optical signal, exit relay action corresponding thereto the tripping operation lamp lighted corresponding thereto.
Feeder line electric arc protection logic:
Logic diagram as shown in Figure 2.For the 1st road relay protective scheme, other road logics are identical.
Exit relay action is divided into two kinds of situations:
1, pure arc protection.Now need by toggle switch, electric current 1 defencive function to be exited, when arc light 1 transducer and arc light 2 transducer, as long as one of them detects arc optical signal, then trip outlet 1 action and light tripping operation lamp 1.
2, arc light criterion and electric current criterion are protected.Now need to be opened the light electric current 1 defencive function input by dial-up, and current signal detected; Simultaneously when arc light 1 transducer and arc light 2 transducer, as long as one of them detects arc optical signal, then trip outlet 1 action and light tripping operation lamp 1.
Concrete grammar of the present utility model:
When arc photosensor is installed on product, CPU lights corresponding arc photosensor self-inspection indicator light.Field personnel as the case may be; by toggle switch, select the concrete form of the outlet actuating of relay, when there is arc fault; illuminance increases considerably; when arc photosensor gathers arc optical signal, CPU can follow according to toggle switch state, current signal state, and automatic decision goes out concrete relay protective scheme; and light corresponding action indicator in time and send exit relay signal; trip early, disengagement failure loop, makes breakdown loss reduce to minimum.
After field failure investigation, staff presses involution button, and by system involution, during fault, relay protective scheme action outlet is pressed in continuation by system next time.
The above is only preferred implementation of the present utility model; be noted that for those skilled in the art; under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (10)
1. for feeding out an arc light protection system for circuit in switch cubicle, it is characterized in that: comprise CPU, arc photosensor, current signal, pure arc light selector switch, button, 485 communication modules, arc photosensor self-inspection indicator light, action indicator and exit relay;
Wherein CPU connects arc photosensor, current signal, arc photosensor self-inspection indicator light, action indicator and exit relay;
Signal is input to CPU by arc photosensor and current signal, and signal is outputted to arc photosensor self-inspection indicator light, action indicator and exit relay by CPU;
CPU is also connected with pure arc light selector switch, button and 485 communication modules.
2. the arc light protection system for feeding out circuit in switch cubicle according to claim 1; it is characterized in that: described CPU is 32 bit CPUs; there is house dog its inside; the master chip of CPU has in-line memory, also has timer, analog/digital converter ADC, serial peripheral equipment interface SPI, I2C bus, universal synchronous/asynchronous accept transmitter USART, fast I/O interface and communication interface.
3. the arc light protection system for feeding out circuit in switch cubicle according to claim 1; it is characterized in that: in the bus-bar room that described arc photosensor is arranged on switch cubicle or feeder cabinet cable vault; support 12 road arc light inputs; maximum support 6 circuit arc light inputs, each feeder line accesses 2 arc probe.
4. the arc light protection system for feeding out circuit in switch cubicle according to claim 1, is characterized in that: described current signal supports 6 road electric current criterion accesses.
5. the arc light protection system for feeding out circuit in switch cubicle according to claim 1, is characterized in that: described pure arc light selector switch is 6 road toggle switchs.
6. the arc light protection system for feeding out circuit in switch cubicle according to claim 1, is characterized in that: described 485 communication modules are furnished with RS-485 communication interface, and are equipped with communication indicator light.
7. the arc light protection system for feeding out circuit in switch cubicle according to claim 1, is characterized in that: described arc photosensor self-inspection indicator light is 12 tunnels, the corresponding arc photosensor passage of each arc photosensor self-inspection indicator light.
8. the arc light protection system for feeding out circuit in switch cubicle according to claim 1, is characterized in that: described action indicator comprises 6 tripping operation lamps, and each tripping operation lamp is corresponding two-way arc probe respectively.
9. the arc light protection system for feeding out circuit in switch cubicle according to claim 1, is characterized in that: described exit relay is provided with No. 6 relays and exports, and independent protective 6 road feeder line, trips separately.
10. the arc light protection system for feeding out circuit in switch cubicle according to claim 1, is characterized in that: described button is the reset key of signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520508002.1U CN204794054U (en) | 2015-07-14 | 2015-07-14 | A arc light protection system that is used for cubical switchboard cooking to go out circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520508002.1U CN204794054U (en) | 2015-07-14 | 2015-07-14 | A arc light protection system that is used for cubical switchboard cooking to go out circuit |
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| CN204794054U true CN204794054U (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520508002.1U Expired - Fee Related CN204794054U (en) | 2015-07-14 | 2015-07-14 | A arc light protection system that is used for cubical switchboard cooking to go out circuit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104953567A (en) * | 2015-07-14 | 2015-09-30 | 南京中凯光电技术有限公司 | Arc light protection system and method for feed-out circuit in switch cabinet |
| CN106410739A (en) * | 2016-11-02 | 2017-02-15 | 云南电力试验研究院(集团)有限公司 | Arc protection device and fault diagnosis method thereof |
| 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 |
-
2015
- 2015-07-14 CN CN201520508002.1U patent/CN204794054U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104953567A (en) * | 2015-07-14 | 2015-09-30 | 南京中凯光电技术有限公司 | Arc light protection system and method for feed-out circuit in switch cabinet |
| CN104953567B (en) * | 2015-07-14 | 2017-12-01 | 南京中凯光电科技股份有限公司 | A kind of arc light protection system and method for being used in switch cubicle feed out circuit |
| CN106410739A (en) * | 2016-11-02 | 2017-02-15 | 云南电力试验研究院(集团)有限公司 | Arc protection device and fault diagnosis method thereof |
| 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 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 210028 A42, building N105, 199 East shogunate Road, Gulou District, Jiangsu, Nanjing Patentee after: NANJING ZHONGKAI OPTOELECTRONICS TECHNOLOGY Co.,Ltd. Address before: 210028 A42, building N105, 199 East shogunate Road, Gulou District, Jiangsu, Nanjing Patentee before: NANJING ZHONGKAI PHOTOELECTRIC TECHNOLOGY Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 |
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| CF01 | Termination of patent right due to non-payment of annual fee |