CN203135421U - Arc light protecting system - Google Patents
Arc light protecting system Download PDFInfo
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- CN203135421U CN203135421U CN 201320124302 CN201320124302U CN203135421U CN 203135421 U CN203135421 U CN 203135421U CN 201320124302 CN201320124302 CN 201320124302 CN 201320124302 U CN201320124302 U CN 201320124302U CN 203135421 U CN203135421 U CN 203135421U
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- 239000000523 sample Substances 0.000 claims abstract description 21
- 238000004891 communication Methods 0.000 claims abstract description 16
- 230000003287 optical effect Effects 0.000 claims description 8
- 239000013307 optical fiber Substances 0.000 claims description 3
- 230000006378 damage Effects 0.000 abstract description 6
- 239000000835 fiber Substances 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 208000014674 injury Diseases 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model relates to an arc light protecting system. The system comprises a main control unit, an arc light probe, a current unit, an arc light expansion unit and an arc light unit. The system adopts a fiber star type connection means. The main control unit is connected with the current unit, the arc light unit and the arc light expansion unit respectively through a single-mode communication cable. The arc light unit and the arc light expansion unit are also connected through a single-mode communication cable. The arc light probe is connected with the main control unit and the arc light unit respectively through a cable. By adopting an arc light detection judging principle and an overcurrent detection judging principle, the system can alleviate the harm of arc light to a human body and further reduce the damage of arc light short circuit faults on equipments. A transformer is prevented from suffering destroyed dynamic stability due to close-range bus faults. The service lifetime of the transformer is thus prolonged. The period of equipment outage caused by arc light faults is shortened. A power supply can be resumed in a rapider way.
Description
Technical field
The utility model relates to a kind of arc protection system.
Background technology
In, when low-voltage bus bar is short-circuited fault, the arclight that produces can cause great injury to equipment and personnel.But the general not quick bus protection of configure dedicated in the present middle voltage bus bar system at home; but the busbar short-circuit fault is excised in the backup protection that relies on the upper level transformer; caused the prolongation of fault clearing time like this; strengthened the degree of injury of equipment; destroying may cause the accident when serious further enlarges, and threatens the stable operation of system.
At present domestic in, the protection of low-voltage bus bar, transformer reserve overcurrent protection, typical operate time of protection 1.2s～2.0s; Adopt the transformer reserve overcurrent protection of feeder line fast tripping protection locking, typical operate time of protection is 300ms～500ms; Bus differential protecting, typical operate time of protection is 15ms.Transformer reserve overcurrent protection is long operate time; can not play effective protective effect; though the transformer reserve overcurrent protection time of feeder line fast tripping protection locking shortens; but still can not be with failure removal before equipment is subjected to grievous injury; bus differential protection scope is subjected to the restriction of CT installation site; the wiring complexity, CT requires high, and the overall cost costliness.
Summary of the invention
At the problems referred to above, the utility model proposes a kind of improved arc protection system.
The utility model is by the following technical solutions: the arc protection system; comprise main control unit, arc probe, current unit, arc light expanding element and arc light unit; system adopts the star-like connected mode of optical fiber; adopt the single mode communications optical cable to connect between main control unit and current unit, main control unit and arc light unit, main control unit and arc light expanding element, arc light unit and the arc light expanding element; adopt special optical cable to connect between main control unit and arc probe, arc light unit and the arc probe
Main control unit comprises CPU, arc light expansion interface, arc probe interface, outlet plug-in unit, power supply at least and opens into plug-in unit and display module.
Main control unit RT-AP400 is the core component of arclight protection system, is responsible for collection, measurement, calculating and the logic of input variable and judges, realize system every protection logic, communicate by letter with the interior supervisory control system in station, self check and other miscellaneous functions.Exchange module and current unit NIM can only select a kind of, when incoming power more than 4 the tunnel time, can only select current unit for use.1 road arc light expansion interface can insert arc light unit or arc light expanding element, when inserting the arc light unit, can increase by 16 test points, when inserting the arc light expanding element, can increase by 16 * 8=128 test point; The arc probe interface can directly insert 1～8 arc probe, and corresponding probe address is 1～8.Video module can be used for the man-machine interaction of equipment, finishes functions such as keyboard processing, liquid crystal display.
The direct in-site collecting incoming power of current unit electric current can save a large amount of cables, avoids the current circuit switching, more convenient site technology transformation
The arc light expanding element receives the data that transmit the arc light unit and is responsible for being forwarded to main control unit, and the control command that main control unit sends is forwarded to the arc light unit by the arc light expanding element, and the communication of three party is finished by optical cable.
All are finished at main control unit for the control operation of arc light unit, main control unit detect in real time and arc light expanding element and arc light unit between signal intelligence, if the then relevant protection of prompt alarm and locking of communication abnormality.
Arc probe, i.e. arc photosensor, be installed in the cabinet each at interval in, can realize by simple to complicated, selectively protect.Arc probe detects the light intensity that increases suddenly as photoinduction element when arc fault takes place, and sends light signal to arc light unit or main control unit by special optic fibre, and opto-electronic conversion is finished in arc light unit or main control unit.Passive arc photosensor has the stray light of filtration function, the reliability height;
Also comprise supervisory control system, main control unit also is provided with ethernet communication interface and CAN Netcom communication interface.Main control unit links to each other with supervisory control system by two-way Ethernet or two-way CAN net.
In the main control unit, CPU is preposition, inserts behind other plug-in units, and the CPU plug-in unit is perpendicular to other plug-in units.The device cabinet adopts " preposition rear loading type " structure of original creation, and namely the CPU plate is preposition, inserts behind other plug-in units, and the CPU plug-in unit adopts this mode perpendicular to other plug-in units, up hill and dale strong and weak electricity is isolated, and has improved the antijamming capability of device.
The beneficial effects of the utility model are: arclight protection system of the present utility model adopts arc light to detect and overcurrent detects two criterion principles, and multichannel high-speed relay and conventional relay have been adopted in trip(ping) circuit, can select for the user.Select for use the high-speed relay outlet trip time less than 4ms, select for use the conventional relay outlet trip time less than 8ms, far away from traditional bus protection, can control in 100ms total mute time of inside arc fault of switch cubicle.Can reduce or reduce arclight for the injury of human body; Reduce or reduce the arclight short trouble for the infringement of equipment; Avoid transformer to cause moving stability disruption because of busbar fault closely, prolong the useful life of transformer; Shorten the arclight fault clearing time, avoid involving the interior direct current system in station and cause heavy losses; Minimizing restored electricity quickly because of the time that the arclight fault causes equipment to stop transport.
Description of drawings
Fig. 1 constitutes block diagram for the utility model system,
Fig. 2 is the schematic diagram of the utility model main control unit,
Among the figure: 1, arc light expansion interface, 2, the arc probe interface, 3, the ethernet communication interface, 4, CAN Netcom communication interface, 5, the outlet plug-in unit, 6, power supply and opening into plug-in unit.
Embodiment
As shown in Figure 1; the arc protection system; comprise main control unit; arc probe; current unit; the arc light expanding element; arc light unit and supervisory control system; system adopts the star-like connected mode of optical fiber; main control unit and current unit; main control unit and arc light unit; main control unit and arc light expanding element; adopt the single mode communications optical cable to connect between arc light unit and the arc light expanding element; main control unit and arc probe; adopt special optical cable to connect between arc light unit and the arc probe, main control unit comprises CPU at least; arc light expansion interface 1; arc probe interface 2; outlet plug-in unit 5; power supply and opening into plug-in unit 6 and display module.Main control unit also is provided with ethernet communication interface 3 and CAN Netcom communication interface 4.
Arc probe detects the light intensity that increases suddenly as photoinduction element when arc fault takes place, and sends light signal to arc light unit or main control unit by special optic fibre.The arc light expanding element receives the data that transmit the arc light unit and is responsible for being forwarded to main control unit, and the control command that main control unit sends is forwarded to the arc light unit by the arc light expanding element, and the communication of three party is finished by optical cable.All are finished at main control unit for the control operation of arc light unit, main control unit detect in real time and arc light expanding element and arc light unit between signal intelligence.
Claims (3)
1. arc protection system; it is characterized in that: comprise main control unit, arc probe, current unit, arc light expanding element and arc light unit; system adopts the star-like connected mode of optical fiber; adopt the single mode communications optical cable to connect between main control unit and current unit, main control unit and arc light unit, main control unit and arc light expanding element, arc light unit and the arc light expanding element; adopt optical cable to connect between main control unit and arc probe, arc light unit and the arc probe
Main control unit comprises CPU, arc light expansion interface, arc probe interface, outlet plug-in unit, power supply at least and opens into plug-in unit and display module.
2. a kind of arc protection according to claim 1 system, it is characterized in that: also comprise supervisory control system, main control unit also is provided with ethernet communication interface and CAN Netcom communication interface.
3. a kind of arc protection according to claim 1 and 2 system, it is characterized in that: in the main control unit, CPU is preposition, inserts behind other plug-in units, and the CPU plug-in unit is perpendicular to other plug-in units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320124302 CN203135421U (en) | 2013-03-19 | 2013-03-19 | Arc light protecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320124302 CN203135421U (en) | 2013-03-19 | 2013-03-19 | Arc light protecting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203135421U true CN203135421U (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320124302 Expired - Fee Related CN203135421U (en) | 2013-03-19 | 2013-03-19 | Arc light protecting system |
Country Status (1)
| Country | Link |
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| CN (1) | CN203135421U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300512A (en) * | 2014-09-22 | 2015-01-21 | 合肥凯正电气技术有限公司 | Busbar short circuit arc light extending protection method |
| CN104332960A (en) * | 2014-10-31 | 2015-02-04 | 南京因泰莱电器股份有限公司 | Intelligent arc light protecting system |
| CN105049122A (en) * | 2015-05-22 | 2015-11-11 | 南京国电南自电网自动化有限公司 | Arc light data uploading method based on fiber double-loop network |
| CN108092239A (en) * | 2017-12-29 | 2018-05-29 | 安徽罗伯特科技股份有限公司 | Arc light protection system |
| CN108155633A (en) * | 2017-12-29 | 2018-06-12 | 安徽罗伯特科技股份有限公司 | Arc light protection system |
| CN108258659A (en) * | 2018-03-19 | 2018-07-06 | 科姆勒电气（安徽）有限公司 | Intelligent 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 |
-
2013
- 2013-03-19 CN CN 201320124302 patent/CN203135421U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300512A (en) * | 2014-09-22 | 2015-01-21 | 合肥凯正电气技术有限公司 | Busbar short circuit arc light extending protection method |
| CN104332960A (en) * | 2014-10-31 | 2015-02-04 | 南京因泰莱电器股份有限公司 | Intelligent arc light protecting system |
| CN105049122A (en) * | 2015-05-22 | 2015-11-11 | 南京国电南自电网自动化有限公司 | Arc light data uploading method based on fiber double-loop network |
| CN105049122B (en) * | 2015-05-22 | 2017-07-25 | 南京国电南自电网自动化有限公司 | Delivery method in arc light data based on optical fiber dual ring net |
| CN108092239A (en) * | 2017-12-29 | 2018-05-29 | 安徽罗伯特科技股份有限公司 | Arc light protection system |
| CN108155633A (en) * | 2017-12-29 | 2018-06-12 | 安徽罗伯特科技股份有限公司 | Arc light protection system |
| CN108258659A (en) * | 2018-03-19 | 2018-07-06 | 科姆勒电气（安徽）有限公司 | Intelligent 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Free format text: FORMER OWNER: JINAN POWER SUPPLY COMPANY OF SHANDONG ELECTRIC POWER CORPORATION Effective date: 20140108 Owner name: JINAN POWER SUPPLY COMPANY, STATE GRID SHANDONG EL Effective date: 20140108 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 250011 JINAN, SHANDONG PROVINCE TO: 100031 XICHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140108 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: Jinan Power Supply Company, State Grid Shandong Electric Power Company Address before: 250011 Shandong Province, Ji'nan City Central Luoyuan Street No. 238 Patentee before: Jinan Power Supply Co., Ltd. of Shandong Electric Power Corporation |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20160319 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |