CN205407236U - A three -dimensional lightning protection system for electric wire netting - Google Patents
A three -dimensional lightning protection system for electric wire netting Download PDFInfo
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- CN205407236U CN205407236U CN201620227319.2U CN201620227319U CN205407236U CN 205407236 U CN205407236 U CN 205407236U CN 201620227319 U CN201620227319 U CN 201620227319U CN 205407236 U CN205407236 U CN 205407236U
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- lightning protection
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- 230000007704 transition Effects 0.000 claims abstract description 38
- 230000001052 transient effect Effects 0.000 claims abstract description 25
- 230000005611 electricity Effects 0.000 claims abstract description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 5
- 230000003647 oxidation Effects 0.000 claims abstract description 5
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 5
- 229910000906 Bronze Inorganic materials 0.000 claims description 21
- 239000010974 bronze Substances 0.000 claims description 21
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 21
- 239000000919 ceramic Substances 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 17
- 239000004020 conductor Substances 0.000 claims description 9
- 229910045601 alloy Inorganic materials 0.000 claims description 8
- 239000000956 alloy Substances 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 238000002955 isolation Methods 0.000 abstract description 2
- 230000005693 optoelectronics Effects 0.000 abstract description 2
- 238000004891 communication Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical group C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Abstract
The utility model discloses a three -dimensional lightning protection system for electric wire netting, electric wire netting include three -phase high tension power line and be connected the intelligent terminal who just is used for calculating user's power consumption with the electric wire netting, and three -phase high tension power line passes through a high pressure oxidation aluminum arrester ground connection respectively, three -phase high tension power line passes through three phase current lightning protection device ground connection, is equipped with at least one decoupler on the three -phase high tension power line respectively, and three -phase high tension power line is respectively through a single phase power lightning protection device ground connection. Three -phase high tension power line is A looks, B looks, C looks respectively. Is intelligent terminal through lightning protection circuit connection RS 485 communicate in signal line and outside, the lightning protection circuit includes that two resistance, two transient current block devices, three transition diode, optoelectronic isolation wares constitute. The utility model provides a three -dimensional lightning protection arrangement form is synthesized to strong and weak electricity, and effective release is attacked thunder, response thunder and surge directly and is disturbed.
Description
[technical field]
The utility model relates to power transmission and transforming equipment field, particularly for the three-dimensional lightning-protection system of electrical network.
[background technology]
Along with all standing of power information acquisition system is popularized, RS-485 data-signal technology is widely used, and direct lightning strike, induced lightening and surge etc. disturb and have become as RS-485 data signal line in Practical Project frequently problem.The system that thunder and lightning can make RS-485 communication bus constitute suffers serious breaking-up, and the surge interference that power supply produces also severely impacts the data transmission quality of RS-485 communication bus.Additionally, owing to the electricity consumption in a lot of rural areas Yu remote mountain areas is all fitted without earth connection, and thunder and lightning multiple district significant portion is overlapping with these regions, some intelligent monitoring terminal installation site is distant from earth connection, there is certain difficulty of construction in wiring, if each intelligent monitoring terminal all independent groundings, each grounding point potentials can be made different due to earth resistance difference again, and make to produce between two intelligent monitoring terminals loop current, affect signal transmission.Design for this.
[utility model content]
For solve foregoing problems, the utility model proposes a kind of can anti-induction thunder and the jamproof three-dimensional lightning-protection system for electrical network.
For reaching object defined above, the utility model adopts the following technical scheme that a kind of three-dimensional lightning-protection system for electrical network, described electrical network includes three-phase high-voltage power transmission line and is connected with described electrical network and for calculating the intelligent terminal of user's power consumption, it is characterized in that: described three-phase high-voltage power transmission line is respectively by a high-pressure oxidation aluminum arrester ground connection, described three-phase high-voltage power transmission line passes through three phase mains lightning protection device ground connection, being respectively equipped with at least one decoupler on described three-phase high-voltage power transmission line, described three-phase high-voltage power transmission line is respectively by a single phase poaer supply lightning protection device ground connection；
Described intelligent terminal connects RS-485 holding wire by lightning protection circuit and communicates with outside, described RS-485 holding wire includes A line and B line, described A line connects the first positive pole and first resistance one end of ceramic discharge tube, described B line connects the second positive pole and one end of the second resistance, the minus earth of described ceramic discharge tube of ceramic discharge tube；
The other end of described first resistance connects one end of the first transient current block device, the other end of described first transient current block device connects one end and one end of the 3rd transition diode of the first transition diode, and the other end of described first transient state block device is connected with the first output of intelligent terminal by photoisolator；
The other end of described second resistance connects one end of the second transient current block device, the other end of described second transient current block device connects one end and the other end of the 3rd transition diode of the second transition diode, and the other end of described second transient current block device is connected with the second output of intelligent terminal by photoisolator；Described first transition diode and the other end ground connection of the second transition diode；
Described first transition diode, the second transition diode, ceramic discharge tube, single phase poaer supply lightning protection device, three phase mains lightning protection device are all by down conductor ground connection, and described down conductor includes the first bronze medal post, multiple pad, the second bronze medal post, electric wire and alloy pointed cone；One end of described electric wire is connected with the first transition diode, the second transition diode, ceramic discharge tube, single phase poaer supply lightning protection device, three phase mains lightning protection device, the other end of described electric wire is fixed on by pad between one end of described first bronze medal post and one end of the second bronze medal post, and the other end of described alloy pointed cone and the second bronze medal post connects.
First preferred version of the present utility model is: described pad is elastomeric pad.
Second preferred version of the present utility model is: described second bronze medal post is spirally connected by multiple 3rd bronze medal posts and forms.
3rd preferred version of the present utility model is: described alloy pointed cone is steel pointed cone.
The utility model can reach following technique effect: (1) improves rural power service business office, the more power information drawing thunder geology in remote mountain areas gathers RS-485 light current circuit and the lightning damage protective capacities of wireless acquisition terminal.(2) a kind of intelligent lightning protecting RS-485 wiring unit that can effectively prevent the interference such as direct lightning strike, induced lightening and surge on RS-485 data signal line and the thunder resisting equipment downlead formulated for rural area low pressure end table case are created.(3) propose this strong and weak electricity comprehensively three-dimensional lightning protection arrangement, effectively discharge direct lightning strike, induced lightening and surge interference.
These features of the present utility model and advantage will be detailed in following detailed description of the invention, accompanying drawing exposure.
[accompanying drawing explanation]
Below in conjunction with the accompanying drawings the utility model is described further:
Fig. 1 is the lightning protection circuit schematic diagram of the utility model embodiment 1.
Fig. 2 is the down conductor structure chart of the utility model embodiment 1.
[detailed description of the invention]
The technical scheme of the utility model embodiment is explained and illustrated by the accompanying drawing below in conjunction with the utility model embodiment, but following embodiment is only preferred embodiment of the present utility model, and not all.Based on the embodiment in embodiment, those skilled in the art are obtained other embodiments on the premise of not making creative work, broadly fall into protection domain of the present utility model.
Embodiment 1.
A kind of three-dimensional lightning-protection system for electrical network, electrical network includes three-phase high-voltage power transmission line and is connected with electrical network and for calculating the intelligent terminal of user's power consumption, three-phase high-voltage power transmission line is respectively by a high-pressure oxidation aluminum arrester ground connection, described three-phase high-voltage power transmission line passes through three phase mains lightning protection device ground connection, being respectively equipped with at least one decoupler on three-phase high-voltage power transmission line, three-phase high-voltage power transmission line is respectively by a single phase poaer supply lightning protection device ground connection.Three-phase high-voltage power transmission line is respectively A phase, B phase, C phase.
Referring to Fig. 1, intelligent terminal connects RS-485 holding wire by lightning protection circuit and communicates with outside, RS-485 holding wire includes A line and B line, A line connects the first positive pole and first resistance R1 one end of ceramic discharge tube G, B line connects the second positive pole and one end of the second resistance R2, the minus earth of ceramic discharge tube G of ceramic discharge tube G.
The other end of the first resistance R1 connects one end of the first transient current block device TBU1, the other end of the first transient current block device TBU1 connects one end and one end of the 3rd transition diode TVS3 of the first transition diode TVS1, and the other end of the first transient state block device TBU1 is connected with the first output of intelligent terminal by photoisolator.The internal structure of photoisolator and the output of intelligent terminal are all technology well-known to those skilled in the art, do not repeat in this.
The other end of the second resistance R2 connects one end of the second transient current block device TBU2, the other end of the second transient current block device TBU2 connects one end and the other end of the 3rd transition diode TVS3 of the second transition diode TVS2, and the other end of the second transient current block device TBU2 is connected with the second output of intelligent terminal by photoisolator；First transition diode TVS1 and the other end ground connection of the second transition diode TVS2.
Referring to Fig. 2, first transition diode TVS1, the second transition diode TVS2, ceramic discharge tube G, single phase poaer supply lightning protection device, three phase mains lightning protection device are all by down conductor ground connection, and down conductor includes the first bronze medal post 1, multiple pad the 2, second bronze medal post, electric wire 5 and alloy pointed cone 3；One end of electric wire 5 is connected with the first transition diode TVS1, the second transition diode TVS2, ceramic discharge tube G, single phase poaer supply lightning protection device, three phase mains lightning protection device, the other end of electric wire 5 is fixed between one end of the first bronze medal post 1 and one end of the second bronze medal post by pad 2, and alloy pointed cone 4 is connected with the other end of the second bronze medal post.Pad 2 is elastomeric pad；Two bronze medal posts are spirally connected by multiple 3rd bronze medal posts 3 and form, and alloy pointed cone 5 is steel pointed cone.
Based on aforementioned circuit, when there is thunderbolt.One-level protection is made up of high-pressure oxidation aluminum arrester and decoupler；Two grades of protection are formed primary protection by three phase mains lightning protection device and down conductor, single phase poaer supply lightning protection device and down conductor form secondary protection；Three grades of protection, the ceramic discharge tube G ground connection release in lightning protection circuit forms primary protection, transient current block device block and the release of transition diode ground connection forms two grades of protection, the isolation of photoisolator optoelectronic insulation form three grades of protection.
Three grades of protection specifically comprise the following steps that when A line or B line surge occur due to indirect lightning strike and other situations, when reaching the first transient state block device TBU1 and the second transient state block device TBU2 operation condition, two transient state block devices action can block circuit in Microsecond grade so that electric current can only be released to the earth by ground connection level by ceramic discharge tube G by surge energy.And the surge energy passed through before two transient state block device actions is just released to the earth by three transition diodes, three transition diodes reach operation voltage can action in nanosecond, conducting ground connection, and voltage clamp is pressed in safe range, thus ensure that the safety of circuit.When ceramic discharge tube G and the first transition diode TVS1 and the second transition diode TVS2 ground connection simultaneously, ground potential differences can be caused to produce earth-return circuit electric current because of earth resistance difference, signal transmission can be impacted equally, photoisolator is set after the 3rd transition diode TVS3 and can thoroughly isolate earth-return circuit electric current and remaining surge energy, when A line and B line recover normal condition.Two transient state block devices turn on again, recover normal data communication.This circuit solves the surge of the interior differential mode produced due to thunder and lightning of RS-485 signal line and common mode to the damage problem of electric instrument on communication line；Eliminate that ceramic discharge tube actuation time is slow, TVS transition diode protection is limited in one's ability and earth resistance is different causes ground potential differences to produce lightning protection components and parts defect and the compatibility issues such as earth-return circuit electric current, make lightning protection effect obtain sound assurance.
The above, detailed description of the invention the most of the present utility model, but protection domain of the present utility model is not limited thereto, it is familiar with this those skilled in the art and should be understood that the utility model includes but not limited to accompanying drawing and content described in detailed description of the invention above.Any amendment without departing from function of the present utility model and structural principle is intended to be included in the scope of claims.
Claims (4)
1. for the three-dimensional lightning-protection system of electrical network, described electrical network include three-phase high-voltage power transmission line and with described electricity
Net connects and for calculating the intelligent terminal of user's power consumption, it is characterised in that: described three-phase high-voltage power transmission line
Respectively by a high-pressure oxidation aluminum arrester ground connection, described three-phase high-voltage power transmission line passes through three phase mains lightning protection
Device ground connection, described three-phase high-voltage power transmission line is respectively equipped with at least one decoupler, and described three-phase high-voltage is transmitted electricity
Line is respectively by a single phase poaer supply lightning protection device ground connection；
Described intelligent terminal connects RS-485 holding wire by lightning protection circuit and communicates with outside, described
RS-485 holding wire includes A line and B line, and described A line connects the first positive pole and first electricity of ceramic discharge tube
Resistance one end, described B line connects the second positive pole and one end of the second resistance of ceramic discharge tube, and described pottery is put
The minus earth of fulgurite；
The other end of described first resistance connects one end of the first transient current block device, described first transient state electricity
The other end of stream block device connects one end and one end of the 3rd transition diode of the first transition diode, described
The other end of the first transient state block device is connected with the first output of intelligent terminal by photoisolator；
The other end of described second resistance connects one end of the second transient current block device, described second transient state electricity
The other end of stream block device connects one end and the other end of the 3rd transition diode of the second transition diode, institute
The other end stating the second transient current block device is connected by the second output of photoisolator with intelligent terminal
Connect；Described first transition diode and the other end ground connection of the second transition diode；
Described first transition diode, the second transition diode, ceramic discharge tube, single phase poaer supply lightning protection device,
Three phase mains lightning protection device is all by down conductor ground connection, and described down conductor includes the first bronze medal post, multiple
Pad, the second bronze medal post, electric wire and alloy pointed cone；One end of described electric wire and the first transition diode, second
Transition diode, ceramic discharge tube, single phase poaer supply lightning protection device, three phase mains lightning protection device connect, described electric wire
The other end be fixed on by pad between one end of described first bronze medal post and one end of the second bronze medal post, described conjunction
The other end of gold pointed cone and the second bronze medal post connects.
The most according to claim 1 for the three-dimensional lightning-protection system of electrical network, it is characterised in that: described pad is
Elastomeric pad.
The most according to claim 1 for the three-dimensional lightning-protection system of electrical network, it is characterised in that: described second bronze medal
Post is spirally connected by multiple 3rd bronze medal posts and forms.
The most according to claim 1 for the three-dimensional lightning-protection system of electrical network, it is characterised in that: described alloy point
Cone is steel pointed cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620227319.2U CN205407236U (en) | 2016-03-23 | 2016-03-23 | A three -dimensional lightning protection system for electric wire netting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620227319.2U CN205407236U (en) | 2016-03-23 | 2016-03-23 | A three -dimensional lightning protection system for electric wire netting |
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| Publication Number | Publication Date |
|---|---|
| CN205407236U true CN205407236U (en) | 2016-07-27 |
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ID=56423579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620227319.2U Active CN205407236U (en) | 2016-03-23 | 2016-03-23 | A three -dimensional lightning protection system for electric wire netting |
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| Country | Link |
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| CN (1) | CN205407236U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720567A (en) * | 2016-03-23 | 2016-06-29 | 国网浙江省电力公司湖州供电公司 | Three-dimensional lightning protection system for power grid |
| CN108110743A (en) * | 2017-12-20 | 2018-06-01 | 中国航空工业集团公司洛阳电光设备研究所 | A kind of high speed signal indirect stroke electric transient susceptibility protective device and design method |
-
2016
- 2016-03-23 CN CN201620227319.2U patent/CN205407236U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720567A (en) * | 2016-03-23 | 2016-06-29 | 国网浙江省电力公司湖州供电公司 | Three-dimensional lightning protection system for power grid |
| CN105720567B (en) * | 2016-03-23 | 2018-07-27 | 国网浙江省电力公司湖州供电公司 | Three-dimensional lightning-protection system for power grid |
| CN108110743A (en) * | 2017-12-20 | 2018-06-01 | 中国航空工业集团公司洛阳电光设备研究所 | A kind of high speed signal indirect stroke electric transient susceptibility protective device and design method |
| CN108110743B (en) * | 2017-12-20 | 2019-04-16 | 中国航空工业集团公司洛阳电光设备研究所 | A kind of high speed signal indirect stroke electric transient susceptibility protective device and design method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |