CN201590653U - Photoelectric arc light protection system - Google Patents
Photoelectric arc light protection system Download PDFInfo
- Publication number
- CN201590653U CN201590653U CN200920295015XU CN200920295015U CN201590653U CN 201590653 U CN201590653 U CN 201590653U CN 200920295015X U CN200920295015X U CN 200920295015XU CN 200920295015 U CN200920295015 U CN 200920295015U CN 201590653 U CN201590653 U CN 201590653U
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Abstract
The utility model relates to a photoelectric arc light protection system, and aims to achieve the technical purpose that the provided photoelectric arc light protection system can eliminate arc light failures inside a bus bar and a switch cabinet as soon as the arc light failures exist, so as to ensure the safety production. In order to achieve the purpose, the utility model adopts the technical scheme that the photoelectric arc light protection system comprises the bus bar, the switch cabinet electrically connected with the bus bar, as well as a first circuit breaker, a current transformer, a transformer and a second circuit breaker which are connected with the bus bar in sequence, wherein arc light sensors are distributed in the switch cabinet, and transmits detected light signals to a main control unit and a light module input terminal of an arc light unit through optical fibers; signals detected by a current unit and the arc light unit are transmitted to the main control unit through optical fibers and differential signal data wires; the input terminal of the current unit is connected with the current transformer; and the whole protection system is powered by a power module. The utility model is mainly applied to arc light failure protection of low and medium voltage switch cabinet bus bars in the power industry.
Description
Technical field
The utility model relates to a kind of photoelectric type arclight protection system.Be applicable in the power industry, the protection of the arc fault of low-tension switch cabinet bus.
Background technology
Show that according to early stage foreign statistic data annual per 1000 switch cubicles just have 7 to be damaged, failure rate 0.7%.The probability of rural power distribution net is higher, reaches 1.2%.According to " communication of high-voltage switch gear technology ", singly be the handcart cabinet, China's electric power system year just has 200 multiaspect cabinets to burn.Because the attention of national governments is installed bus and is protected ratio to surpass 95% fast with relevant mandatory file, rules regulation, the Medium voltage switch or circuit breaker on ground such as Russia and America and Europe.External famous switch cubicle manufacturer, as Reyrolle, ABB, Siemens, Schneider, Moeller, Holec etc., wherein low-tension switch cabinet all has supporting use arclight protection system.
In recent years, along with the high speed development of domestic power industry, the number of applications of Medium Voltage Switchgear is more and more, because the middle pressure busbar fault that switch cubicle arc short-circuit fault causes is also increasing; On the other hand; the user is also more and more higher to the reliability requirement of power supply; more domestic experts also emphasize to install the importance of special-purpose middle voltage bus bar protection always; the user wishes also to provide that a kind of cost is lower, principle simple, is applicable to the bus protection of 3KV～35KV; to reduce the infringement of busbar fault to greatest extent, improve power supply reliability to equipment.Under this background, the arclight protection system begins accelerated development in China's application on power system.
Following damaged condition under the various arcing times of external data introduction equipment being caused:
35ms: not significant the damage, generally can behind the check insulation resistance, come into operation.
100ms: damage lessly, before switch cubicle puts into operation once more, need to clean or some possible little repairing.
500ms: device damage is very serious, and personnel at the scene also are subjected to serious injury, must just can put into operation by removable parts equipment again.
Summary of the invention
The technical problems to be solved in the utility model is: at the situation that the time is long, the fault damage envelope is bigger of present domestic breaking arc fault; a kind of photoelectric type arclight protection system is provided; be intended in the very first time that arc fault takes place, to excise the fault of bus and switch cubicle inside; avoid or alleviate infringement switch and upstream transformer equipment and the person; shortening equipment repair time, ensure safety in production.
The technical scheme that the utility model adopted is: photoelectric type arclight protection system; has bus; the switch cubicle that is electrically connected with bus; and the circuit breaker that is connected in turn with bus; current transformer; transformer and another circuit breaker; it is characterized in that: be distributed with arc photosensor in the described switch cubicle; arc photosensor is transmitted to optical module input on main control unit and the arc light unit by optical fiber with detected light signal; the detected signal of described current unit and arc light unit is transferred to main control unit by optical fiber and differential signal data wire; the input of current unit links to each other with current transformer, and power module is whole photoelectric type arclight protection system power supply.
Described optical fiber adopts single core Plasitc fibers optical fiber.
Described arc photosensor is made up of a fiber adapter and the scatter filter that is used for the filtering ring environmental light source.
Described power module is the 12V DC power supplier.
The beneficial effects of the utility model are: during this protection system can guarantee, low-tension switch cabinet when arc fault takes place fast, open failure circuit selectively; duration of fault restriction electric arc fundamentally; eliminate the harm that the short circuit arc light is caused, reduced simultaneously because fault enlarges the heavy economic losses that is caused to personnel, equipment.
Description of drawings
Fig. 1 is a circuit theory schematic diagram of the present utility model.
Embodiment
As shown in Figure 1, the peripheral components of this protection system has bus 6, and switch cubicle 5 is electrically connected with bus, also has circuit breaker 4, current transformer 3, transformer 2 and another circuit breaker 1 with bus is connected in turn in addition.This protection system mainly comprises: be used to manage with the main control unit 10 of control system, be used to manage and the current unit 12 of Control current measuring ability, be used to manage and control the arc light expanded function arc light unit 13, be used for power module 11 to whole photoelectric type arclight protection system power supply, and be used for the optical fiber 7 of transmitting optical signal and be used to detect the arc photosensor of arc light intensity.
Described arc photosensor is distributed in the switch cubicle 5, and arc photosensor is made up of a fiber adapter and the scatter filter that is used for the filtering ring environmental light source.Arc photosensor is transmitted to optical module input on main control unit 10 and the arc light unit 13 by optical fiber 7 with detected light signal, described current unit 12 and arc light unit 13 detected signals are transferred to main control unit 10 by optical fiber and differential signal data wire, and the input of current unit 12 links to each other with current transformer 3.Power module 11 is whole photoelectric type arclight protection system power supply, and power module 11 adopts and satisfies the 12V DC power supplier that system power supply requires.
For guaranteeing robustness and the rapidity of this protection system under the strong electromagnetic condition, single core Plasitc fibers optical fiber is all adopted in the guard signal transmission between main control unit 10, current unit 12, the arc light unit 13.Single core Plasitc fibers optical fiber is easy to install and use, and optical fiber cable transmits anti-electromagnetic interference, does not need special protection sheath or other protection equipment.Optical fiber can be selected full-length or by the customer selecting random length.The response time of arclight protection system minimum has been guaranteed in the use of optical fiber.
This protection system adopts arc light to detect and overcurrent detects two criterion principles; its operation principle is: by the arc light in the arc photosensor detection mesolow switch cubicle; if current unit has detected over-current signal simultaneously, then be judged as and produced the arclight fault by main control unit.In case detect the arclight fault, then this protection system is sent trip command in 1ms, reaches the purpose of protection.This photoelectric type arclight protection system can be by dissimilar terminal box operational mode flexible programmings.
Claims (5)
1. photoelectric type arclight protection system; has bus (6); the switch cubicle that is electrically connected with bus (5); and the circuit breaker (4) that is connected in turn with bus; current transformer (3); transformer (2) and another circuit breaker (1); it is characterized in that: described switch cubicle is distributed with arc photosensor in (5); arc photosensor is transmitted to optical module input on main control unit (10) and arc light unit (13) by optical fiber (7) with detected light signal; the detected signal of described current unit (12) and arc light unit (13) is transferred to main control unit (10) by optical fiber and differential signal data wire; the input of current unit (12) links to each other with current transformer (3), and power module (11) is whole photoelectric type arclight protection system power supply.
2. photoelectric type arclight protection system according to claim 1 is characterized in that: described optical fiber adopts single core Plasitc fibers optical fiber.
3. photoelectric type arclight protection system according to claim 1 and 2 is characterized in that: described arc photosensor is made up of a fiber adapter and the scatter filter that is used for the filtering ring environmental light source.
4. photoelectric type arclight protection system according to claim 1 and 2 is characterized in that: described power module (11) is the 12V DC power supplier.
5. photoelectric type arclight protection system according to claim 3 is characterized in that: described power module (11) is the 12V DC power supplier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920295015XU CN201590653U (en) | 2009-12-25 | 2009-12-25 | Photoelectric arc light protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920295015XU CN201590653U (en) | 2009-12-25 | 2009-12-25 | Photoelectric arc light protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201590653U true CN201590653U (en) | 2010-09-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920295015XU Expired - Fee Related CN201590653U (en) | 2009-12-25 | 2009-12-25 | Photoelectric arc light protection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201590653U (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608494A (en) * | 2012-02-24 | 2012-07-25 | 国电南瑞科技股份有限公司 | Arc light monitoring intelligent component system and monitoring method for medium-low voltage switch of intelligent substation |
| CN102694372A (en) * | 2012-06-01 | 2012-09-26 | 南京师范大学 | Monitoring and arc protecting system for switch cabinet |
| CN102842882A (en) * | 2011-06-20 | 2012-12-26 | 伊顿公司 | Arc flash system for power circuit |
| CN103248017A (en) * | 2013-05-15 | 2013-08-14 | 南京弘毅电气自动化有限公司 | 100-percent fast protection system and method for internal fault of switch cabinet |
| CN103248016A (en) * | 2013-04-24 | 2013-08-14 | 南自晋能自动化有限公司 | Short-wave ultraviolet light bus protection device |
| CN103618295A (en) * | 2013-11-29 | 2014-03-05 | 国家电网公司 | Photoelectric type arc light protecting system |
| CN103812082A (en) * | 2012-11-08 | 2014-05-21 | 李品德 | Novel arc light protection system |
| 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 |
| CN104953559A (en) * | 2015-07-08 | 2015-09-30 | 安徽瑞宏信息科技有限公司 | Intelligent arc light protection system provided with microcomputer |
| CN107425509A (en) * | 2017-08-04 | 2017-12-01 | 昆山帝森克罗德光电技术有限公司 | A kind of arc light protecting device |
| CN109038472A (en) * | 2018-08-10 | 2018-12-18 | 江苏南能电气有限公司 | A kind of photovoltaic box type transformer arc light protecting device |
| CN109390901A (en) * | 2017-08-03 | 2019-02-26 | 施耐德电器工业公司 | Internal arc means of defence, device and the electrical cabinet including it in distribution system |
| CN110752588A (en) * | 2019-11-07 | 2020-02-04 | 国网浙江淳安县供电有限公司 | Protection device based on electric arc and light detection |
-
2009
- 2009-12-25 CN CN200920295015XU patent/CN201590653U/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102842882A (en) * | 2011-06-20 | 2012-12-26 | 伊顿公司 | Arc flash system for power circuit |
| CN102842882B (en) * | 2011-06-20 | 2016-12-21 | 伊顿公司 | Arc flash system for power circuit |
| CN102608494A (en) * | 2012-02-24 | 2012-07-25 | 国电南瑞科技股份有限公司 | Arc light monitoring intelligent component system and monitoring method for medium-low voltage switch of intelligent substation |
| CN102694372A (en) * | 2012-06-01 | 2012-09-26 | 南京师范大学 | Monitoring and arc protecting system for switch cabinet |
| CN103812082A (en) * | 2012-11-08 | 2014-05-21 | 李品德 | Novel arc light protection system |
| CN103248016A (en) * | 2013-04-24 | 2013-08-14 | 南自晋能自动化有限公司 | Short-wave ultraviolet light bus protection device |
| CN103248017B (en) * | 2013-05-15 | 2015-12-23 | 南京弘毅电气自动化有限公司 | Internal faults of switch cabinet 100% rapid protection system and guard method |
| CN103248017A (en) * | 2013-05-15 | 2013-08-14 | 南京弘毅电气自动化有限公司 | 100-percent fast protection system and method for internal fault of switch cabinet |
| CN103618295A (en) * | 2013-11-29 | 2014-03-05 | 国家电网公司 | Photoelectric type arc light protecting system |
| CN104953559A (en) * | 2015-07-08 | 2015-09-30 | 安徽瑞宏信息科技有限公司 | Intelligent arc light protection system provided with microcomputer |
| 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 |
| CN109390901A (en) * | 2017-08-03 | 2019-02-26 | 施耐德电器工业公司 | Internal arc means of defence, device and the electrical cabinet including it in distribution system |
| CN109390901B (en) * | 2017-08-03 | 2023-03-24 | 施耐德电器工业公司 | Internal arc protection method and device in power distribution system and electrical cabinet comprising internal arc protection device |
| CN107425509A (en) * | 2017-08-04 | 2017-12-01 | 昆山帝森克罗德光电技术有限公司 | A kind of arc light protecting device |
| CN109038472A (en) * | 2018-08-10 | 2018-12-18 | 江苏南能电气有限公司 | A kind of photovoltaic box type transformer arc light protecting device |
| CN110752588A (en) * | 2019-11-07 | 2020-02-04 | 国网浙江淳安县供电有限公司 | Protection device based on electric arc and light detection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100922 Termination date: 20121225 |