CN205453106U - Arc light protecting device - Google Patents
Arc light protecting device Download PDFInfo
- Publication number
- CN205453106U CN205453106U CN201520701767.7U CN201520701767U CN205453106U CN 205453106 U CN205453106 U CN 205453106U CN 201520701767 U CN201520701767 U CN 201520701767U CN 205453106 U CN205453106 U CN 205453106U
- Authority
- CN
- China
- Prior art keywords
- arc light
- protecting device
- protection
- arc
- light protecting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000009434 installation Methods 0.000 claims description 3
- 230000006378 damage Effects 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 230000010354 integration Effects 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 abstract 2
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 208000014674 injury Diseases 0.000 description 4
- 230000032683 aging Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000001934 delay Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Abstract
The utility model discloses an arc light protecting device relates to the power equipment field, and this arc light protecting device includes the arc light component and cross the fluid element, and the arc light component is including the arc light protection detecting element who installs in the system middle and low voltage generating line and contact department, still includes the photosensitive element of installing at service entrance switch cabinet and each outlet switch cabinet, overflows the component and includes that ground connection crosses the fluid element. The photosensitive element directly gets into synthesizes computer protection device, reduces middle conversion link, realizes the protection integration, has reduced the investment, has practiced thrift the cost. The trouble can be amputated fast to quick arc light protection in 100 milliseconds, reduced the harm to primary equipment, and reduce the fault has not only increased the operational reliability of equipment and the economic nature of maintenance to primary equipment's maintenance expense, reduces the power off time simultaneously, saves the loss that has a power failure and cause.
Description
Technical field
This utility model relates to field of electrical equipment, particularly to a kind of arc light protecting device.
Background technology
In power system, the bus of 35kV and following electric pressure, owing to not having stable problem, does not typically install bus protection.But, owing to the outlet on middle voltage bus bar is many, frequent operation, three-phase conductor wire spacing is closer with the distance of the earth, is easily endangered by toy, device fabrication quality is poorer than high pressure equipment, apparatus insulated aging and mechanical wear, service condition is severe, and system operation conditions changes, the reasons such as artificial and operation mistake, the probability of failure of middle voltage bus bar is more much higher than high pressure, supertension bus.Its injury causing equipment and the person is the most serious.
In power system, the bus of 35kV and following electric pressure, owing to not having stable problem, does not typically install bus protection.But, owing to the outlet on middle voltage bus bar is many, frequent operation, three-phase conductor wire spacing is closer with the distance of the earth, is easily endangered by toy, device fabrication quality is poorer than high pressure equipment, apparatus insulated aging and mechanical wear, service condition is severe, and system operation conditions changes, the reasons such as artificial and operation mistake, the probability of failure of middle voltage bus bar is more much higher than high pressure, supertension bus.Its injury causing equipment and the person is the most serious.Traditional protection is by detecting electric current, it is impossible to detection direct to arc light.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of arc light protecting device; selecting quick arc protection will be optimal selection; fault can be excised within the shortest time; thus realize the quick defencive function of middle voltage bus bar, and it is integrated with comprehensive microcomputer protecting device to realize arc protection.
For achieving the above object; the technical scheme that this utility model offer is following: a kind of arc light protecting device; it is characterized in that: described arc light protecting device includes arc light element and overcurrent element; arc light element includes the arc protection detecting element in the system that is arranged at middle voltage bus bar and contact; it is additionally included in incoming line switch cabinet and the photo-sensitive cell of each outlet switch cabinet installation; overcurrent element includes that ground connection overcurrent element, arc protection detecting element are connected in parallel with ground connection overcurrent element.
Preferably, described arc light protecting device uses arc protection and comprehensive microcomputer protecting device integral structure.
Preferably, described photo-sensitive cell includes point-like photo-sensitive cell and wire photo-sensitive cell.
Above technical scheme is used to provide the benefit that: this arc light protecting device have employed same comprehensive microcomputer protecting device, only increases arc protection function, it is to avoid the repeating of equipment is installed.Photo-sensitive cell is directly entered comprehensive microcomputer protecting device, reduces middle conversion links, and real realization is protected integration, decreased investment, saved cost.Quickly arc protection can quickly excise fault in 100 milliseconds; fundamentally decrease the infringement to primary equipment; particularly burn the problem operated; greatly reduce fault to the maintenance of primary equipment and maintenance cost; not only add the operational reliability of equipment and the economy of maintenance, can also save, at minimizing power off time, the loss caused that has a power failure simultaneously.With people's text, it is to avoid expense expenditure has been saved in personal injury exactly, conscientiously accomplish that people-oriented, reduce and avoid personal injury.Realize the quick arc protection of bus of 35kV and following armoured switch cabinet; the damage that quickly excision arc protection is likely to result in; avoid the arc light harm to operator, and the phenomenon being inherently eliminated electric power " baked wheaten cake is operated " occurs, the protection scheme of Erecting and improving.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings detailed description of the invention of the present utility model is described in further detail.
Fig. 1 is the relay protective scheme schematic diagram of a kind of arc light protecting device of this utility model.
Detailed description of the invention
Describe the preferred implementation of a kind of arc light protecting device of this utility model below in conjunction with the accompanying drawings in detail.
Fig. 1 shows the detailed description of the invention of a kind of arc light protecting device of this utility model: this arc light protecting device includes arc light element and overcurrent element; arc light element includes the arc protection detecting element in the system that is arranged at middle voltage bus bar and contact; it is additionally included in incoming line switch cabinet and the photo-sensitive cell of each outlet switch cabinet installation; overcurrent element includes that ground connection overcurrent element, arc protection detecting element are connected in parallel with ground connection overcurrent element.Arc light protecting device uses arc protection and comprehensive microcomputer protecting device integral structure.Photo-sensitive cell includes point-like photo-sensitive cell and wire photo-sensitive cell.
This device uses quickly, Large Copacity output relay, it is delicate that its movement time is about 50, for being substantially negligible from the point of view of photosensitive discriminating element Millisecond, output contact Large Copacity can directly cut-off the big electric current of 10 peaces simultaneously, trip(ping) circuit can be directly accessed, it is to avoid the time delays of relaying escape, so greatly reduce whole group of movement time, guarantee that action can be quick, within the shortest time, excise fault.
Simply utilize photosensitive criterion it is difficult to ensure that the reliability of protection act and safety, in order to avoid the misoperation caused due to outside high-strength light, need other criterion to strengthen the reliability of action, thus improve the safety that system is run.This device uses the method for electric current criterion and photo-sensitive cell comprehensive descision fault to realize the reliability of action.As it can be seen, arc light detecting and electric current criterion composition and logic judge arc fault, electric current criterion can be phase current can also be zero sequence earth current so that all fault types can be judged, it is ensured that the safety of action.
This device uses and directly differentiates sampled value, thus avoids and calculate the time delays caused so that protection can complete after arc light and electric current comprehensive descision the soonest in 3.1 milliseconds, and sends trip signal.
Above is only preferred implementation of the present utility model; it should be pointed out that, for the person of ordinary skill of the art, on the premise of creating design without departing from this utility model; can also make some deformation and improvement, these broadly fall into protection domain of the present utility model.
Claims (3)
1. an arc light protecting device; it is characterized in that: described arc light protecting device includes arc light element and overcurrent element; arc light element includes the arc protection detecting element in the system that is arranged at middle voltage bus bar and contact; it is additionally included in incoming line switch cabinet and the photo-sensitive cell of each outlet switch cabinet installation; overcurrent element includes that ground connection overcurrent element, arc protection detecting element are connected in parallel with ground connection overcurrent element.
Arc light protecting device the most according to claim 1, it is characterised in that: described arc light protecting device uses arc protection and comprehensive microcomputer protecting device integral structure.
Arc light protecting device the most according to claim 1, it is characterised in that: described photo-sensitive cell includes point-like photo-sensitive cell and wire photo-sensitive cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520701767.7U CN205453106U (en) | 2015-09-11 | 2015-09-11 | Arc light protecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520701767.7U CN205453106U (en) | 2015-09-11 | 2015-09-11 | Arc light protecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205453106U true CN205453106U (en) | 2016-08-10 |
Family
ID=57180002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520701767.7U Expired - Fee Related CN205453106U (en) | 2015-09-11 | 2015-09-11 | Arc light protecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205453106U (en) |
-
2015
- 2015-09-11 CN CN201520701767.7U patent/CN205453106U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160810 Termination date: 20190911 |