CN204885825U - Novel distribution lines arc extinguishing lightning protection clearance device - Google Patents
Novel distribution lines arc extinguishing lightning protection clearance device Download PDFInfo
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- CN204885825U CN204885825U CN201520691301.3U CN201520691301U CN204885825U CN 204885825 U CN204885825 U CN 204885825U CN 201520691301 U CN201520691301 U CN 201520691301U CN 204885825 U CN204885825 U CN 204885825U
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- 239000012212 insulator Substances 0.000 claims abstract description 22
- 238000010891 electric arc Methods 0.000 claims abstract description 8
- 230000000149 penetrating effect Effects 0.000 claims description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 230000005484 gravity Effects 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 230000004888 barrier function Effects 0.000 claims description 4
- 230000035939 shock Effects 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound 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 abstract description 3
- 238000004070 electrodeposition Methods 0.000 abstract description 2
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003252 repetitive effect Effects 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The utility model discloses a novel distribution lines arc extinguishing lightning protection clearance device relates to electric power facility component technical field. A novel distribution lines arc extinguishing lightning protection clearance device, including insulator body and lightning arrester body, insulator body upper end with join in marriage wire connection, insulator body lower extreme and lightning arrester body lower extreme swing joint, the lightning arrester body upper end sets up discharge electrode, the distribution line corresponds discharge electrode position department and sets up preventing arc puncture fastener, preventing arc puncture fastener lower extreme sets up the electrode that draws to the discharge electrode extension, it is equipped with gap in arcing chamber to draw between electrode and the discharge electrode, it sets up arc control device on the electrode to draw. Compared with the prior art, the utility model has the advantages of its simple structure can easy to assemblely fix on distribution lines to can realize electric arc fast, reliably extinguish, thereby reduce and join in marriage net thunderbolt accident and circuit thunderbolt trip -out rate, enhancing power supply reliability.
Description
Technical field
The utility model relates to electric power facility Element Technology field, particularly a kind of new distribution circuit arc extinguishing lightning protection clearance apparatus.
Background technology
At present, in the use procedure of electrical network aerial condutor, due to safety will be ensured and in order to reduce the line fault because the external cause such as ice and snow, trees causes, improving electrical network aerial condutor reliability of operation, adopting suspended insulated guide wire in a large number both at home and abroad.But suspended insulated guide wire easily suffers lightning-caused breaking and causes the accident, this is the major defect using suspended insulated guide wire to produce, and not only have impact on the reliability of operation of power networks, and seriously hinders the popularization of overhead transmission line insulating.For solving this problem, by arc extinguishing lightning protection clearance apparatus, thunder energy should be leaked into the earth in time when being struck by lightning, overhead transmission line and insulator could be protected.But existing arc extinguishing lightning protection clearance apparatus also exists a lot of problem in use, such as:
1, existing arc extinguishing lightning protection clearance apparatus is be arranged on distribution line by bolt mostly, installs inconvenient.
2, existing arc extinguishing lightning protection clearance apparatus, complex structure, use, maintenance cost is high, useful life is short, is unfavorable for electrical network economy, safety, stable operation.
Utility model content
For solving deficiency of the prior art, the utility model provides a kind of new distribution circuit arc extinguishing lightning protection clearance apparatus, its structure is simple, can conveniently be fixed on distribution line, and electric arc can be realized extinguish fast, reliably, thus reduce distribution lightning strike accident and lightning outage rate, improve power supply reliability.
The utility model for achieving the above object, be achieved through the following technical solutions: a kind of new distribution circuit arc extinguishing lightning protection clearance apparatus, comprise insulator body and lightning arrester body, described insulator body upper end is connected with distribution wire, described insulator body lower end is flexibly connected with lightning arrester body lower end, described lightning arrester body upper end arranges sparking electrode, the corresponding sparking electrode position of distribution wire arranges preventing arc penetrating cable clamp, described preventing arc penetrating cable clamp comprises the stationary half of inner hollow and movable semi-ring, described stationary half and movable semi-ring one end hinged, the multiple sawtooth of described movable semi-ring arranged outside, described stationary half port arranges and pulls out button, inner to arrange and the compressing tablet pulling out button and be communicated with, inside described stationary half and/or movable semi-ring, steel-tooth is set, the insulating barrier that described steel-tooth penetrates distribution wire is electrically connected with distribution wire, described preventing arc penetrating cable clamp lower end arrange to sparking electrode extend draw electrode, described drawing between electrode and sparking electrode is provided with gap in arcing chamber, described drawing on electrode arranges arc-control device, described arc-control device comprises insulated enclosure housing, described insulated enclosure shell one end arranges gap in arcing chamber puff prot, described insulated enclosure hull outside is provided with hydrophobicity shirt rim, arrange in described insulated enclosure housing and be used for and the gap in arcing chamber noncontinuous electrode drawing electric Electrode connection, in described insulated enclosure housing, four gas generating units are set near gap in arcing chamber noncontinuous electrode one end, the high velocity jet air-flow that described gas generating unit produces longitudinally acts on electric arc and sprays along gap in arcing chamber puff prot, also comprise the signal pickup assembly of connecting with gap in arcing chamber noncontinuous electrode.
Described insulated enclosure housing arranges magnet, described insulated enclosure enclosure interior arranges gas generating unit and switches sheet metal, four described gas generating units superpose setting vertically and embedded iron block is equipped with in inside, four gas generating unit sequence startings when thunderbolt occurs distribution line, when falling to magnet positions under gravity and its adhesive, and form reliable connection with signal pickup assembly, high velocity jet gas shock gas generating unit after gas generating unit starts switches sheet metal, as the necessary condition that next gas generating unit starts.
Described insulator body lower end arranges outward extending bearing plate, on the upside of described bearing plate, raised line is set, described raised line is arranged slip groove, described lightning arrester body lower end arranges contiguous block, described contiguous block arranges connecting hole, construction bolt in described connecting hole, described bolt is through slip groove attaching nut.
Described contiguous block lower end is circular arc.
Contrast prior art, the beneficial effects of the utility model are:
1, the utility model preventing arc penetrating cable clamp comprises movable semi-ring and stationary half, sawtooth is provided with outside movable semi-ring, stationary half port arranges the compressing tablet pulling out button, inner setting and pull out button and be communicated with, movable semi-ring is inserted in stationary half, sawtooth place when compressing tablet rests on closed, movable semi-ring can not separate with stationary half, can by drawing on electric electrode strap distribution wire, easy for installation; The utility model structure is simple; when circuit normally runs without afterflow; can start rapidly when there is Lightning Over-voltage; reliable arc extinguishing simultaneously; and can by arc extinction before distribution line relaying protection action, thus avoid line tripping to occur, available protecting power equipment; thus reduce distribution lightning strike accident and lightning outage rate, improve power supply reliability.
2, insulated enclosure housing arranges magnet, insulated enclosure enclosure interior arranges gas generating unit and switches sheet metal, can repetitive operation, and gas generating unit can charged for replacement.
3, insulator body lower end arranges outward extending bearing plate, on the upside of bearing plate, raised line is set, raised line is arranged slip groove, lightning arrester body lower end arranges contiguous block, contiguous block arranges connecting hole, construction bolt in connecting hole, bolt is through slip groove attaching nut, conveniently can regulate the spacing of gap in arcing chamber, thus be applicable to different electric pressures; And can according to the position of the position adjustments lightning arrester body of sparking electrode, flexible and convenient to use.
4, contiguous block lower end is circular arc, the convenient angle of inclination regulating lightning arrester body.
Accompanying drawing explanation
Accompanying drawing 1 is the utility model structural representation;
Accompanying drawing 2 is that in the utility model, gas generating unit starts switching schematic diagram;
Accompanying drawing 3 is the utility model preventing arc penetrating cable clamp structural representations.
Label shown in accompanying drawing: 1, insulator body; 2, lightning arrester body; 3, distribution wire; 4, sparking electrode; 5, preventing arc penetrating cable clamp; 51, stationary half; 52, movable semi-ring; 53, sawtooth; 54, button is pulled out; 55, compressing tablet; 56, steel-tooth; 6, electrode is drawn; 7, insulated enclosure housing; 8, gap in arcing chamber; 9, gap in arcing chamber puff prot; 10, hydrophobicity shirt rim; 11, gap in arcing chamber noncontinuous electrode; 12, gas generating unit; 13, signal pickup assembly; 14, magnet; 15, gas generating unit switches sheet metal; 16, embedded iron block; 17, bearing plate; 18, raised line; 19, slip groove; 20, contiguous block; 21, bolt.
Embodiment
By reference to the accompanying drawings and specific embodiment, the utility model is described in further detail.Should be understood that these embodiments are only not used in restriction scope of the present utility model for illustration of the utility model.In addition should be understood that those skilled in the art can make various changes or modifications the utility model, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the utility model instruction.
A kind of new distribution circuit arc extinguishing lightning protection clearance apparatus, comprise insulator body 1 and lightning arrester body 2, described insulator body 1 upper end is connected with distribution wire 3.Described insulator body 1 lower end is flexibly connected with lightning arrester body 2 lower end.Described lightning arrester body 2 upper end arranges sparking electrode 4, and distribution wire 3 corresponding sparking electrode 4 position arranges preventing arc penetrating cable clamp 5.Described preventing arc penetrating cable clamp 5 comprises stationary half 51 and the movable semi-ring 52 of inner hollow, described stationary half 51 and movable semi-ring 52 one end hinged, the multiple sawtooth 53 of described movable semi-ring 52 arranged outside, described stationary half 51 port arranges and pulls out button 54, inner to arrange and the compressing tablet 55 pulling out button 54 and be communicated with, inside described stationary half 51 and/or movable semi-ring 52, steel-tooth 56 is set, the insulating barrier that described steel-tooth 56 penetrates distribution wire 3 is electrically connected with distribution wire 3, described preventing arc penetrating cable clamp 5 lower end arrange to sparking electrode 4 extend draw electrode 6, described drawing between electrode 6 and sparking electrode 4 is provided with gap in arcing chamber 8.Be inserted in stationary half 51 by movable semi-ring 52, sawtooth 53 place when compressing tablet 55 rests on closed, movable semi-ring 52 can not separate with stationary half 51, can by drawing on electric electrode strap distribution wire, easy for installation.Described drawing on electrode 6 arranges arc-control device, described arc-control device comprises insulated enclosure housing 7, described insulated enclosure housing 7 one end arranges gap in arcing chamber puff prot 9, hydrophobicity shirt rim 10 is provided with outside described insulated enclosure housing 7, the gap in arcing chamber noncontinuous electrode 11 being used for drawing electrode 6 and be connected is set in described insulated enclosure housing 7, in described insulated enclosure housing 7, four gas generating units 12 are set near gap in arcing chamber noncontinuous electrode 11 one end, the high velocity jet air-flow that described gas generating unit 12 produces longitudinally acts on electric arc and sprays along gap in arcing chamber puff prot 9, also comprise the signal pickup assembly 13 of connecting with gap in arcing chamber noncontinuous electrode 11.When distribution line is struck by lightning, lightning overvoltage draws the direct gap in arcing chamber of electrode by the sparking electrode on puncture preventing arc wire clamp and lightning arrester body upper end, and leaks into greatly by lightning arrester body; Because puncture preventing arc wire clamp is electrically connected with distribution wire, described electric arc can not produce burning on distribution wire, and electric arc appears on air gap, then by arc-control device arc extinguishing, thus avoids line tripping to occur.
As optimization, described insulated enclosure housing 7 arranges magnet 14, described insulated enclosure housing 7 inside arranges gas generating unit and switches sheet metal 15, described four gas generating units 12 superpose setting vertically and embedded iron block 16 is equipped with in inside, sequence starting when four gas generating units 12 occur on distribution wire 3 road to be struck by lightning, when falling to magnet 14 position under gravity and its adhesive, and form reliable connection with signal pickup assembly 13, high velocity jet gas shock gas generating unit after gas generating unit 12 starts switches sheet metal 15, as the necessary condition that next gas generating unit 12 starts.Each gas generating unit all installs embedded iron block, and when gas generating unit falls to trigger position under gravity, gas generating unit is merged by magnet and is connected with signal pickup assembly, triggers loop conducting; Meanwhile, gas generating unit switches sheet metal and is combined with insulated enclosure housing inner groovy, effectively supports gas generating unit; The high-speed gas that produces after gas generating unit action impacts and switches sheet metal to while coming off, produce reaction force, make it break away from magnetic attraction and eject from device, next gas generating unit under gravity automatically under slide to trigger position, thus realize the switching of four gas generating unit orders, repetitive operation, gas generating unit can charged for replacement.
As optimization, described insulator body 1 lower end arranges outward extending bearing plate 17, on the upside of described bearing plate 17, raised line 18 is set, described raised line 18 arranges slip groove 19, described lightning arrester body 2 lower end arranges contiguous block 20, described contiguous block 20 arranges connecting hole, construction bolt 21 in described connecting hole, described bolt 21 is through slip groove 19 attaching nut, conveniently can regulate the spacing of gap in arcing chamber, thus be applicable to different electric pressures, and can according to the position of the position adjustments lightning arrester body of sparking electrode, flexible and convenient to use.
As optimization, described contiguous block 20 lower end is circular arc, the convenient angle of inclination regulating lightning arrester body.
Embodiment 1:
A kind of new distribution circuit arc extinguishing lightning protection clearance apparatus, comprise insulator body 1 and lightning arrester body 2, described insulator body 1 upper end is connected with distribution wire 3.Described insulator body 1 lower end is flexibly connected with lightning arrester body 2 lower end.Described insulator body 1 lower end arranges outward extending bearing plate 17, on the upside of described bearing plate 17, raised line 18 is set, described raised line 18 arranges slip groove 19, described lightning arrester body 2 lower end arranges contiguous block 20, described contiguous block 20 arranges connecting hole, construction bolt 21 in described connecting hole, described bolt 21 is through slip groove 19 attaching nut, described contiguous block 20 lower end is circular arc, the convenient angle of inclination regulating lightning arrester body.Described lightning arrester body 2 upper end arranges sparking electrode 4, and described distribution wire 3 corresponding sparking electrode 4 position arranges preventing arc penetrating cable clamp 5.Described preventing arc penetrating cable clamp 5 comprises stationary half 51 and the movable semi-ring 52 of inner hollow, described stationary half 51 and movable semi-ring 52 one end hinged, the multiple sawtooth 53 of described movable semi-ring 52 arranged outside, described stationary half 51 port arranges and pulls out button 54, inner to arrange and the compressing tablet 55 pulling out button 54 and be communicated with, inside described stationary half 51 and/or movable semi-ring 52, steel-tooth 56 is set, the insulating barrier that described steel-tooth 56 penetrates distribution wire 3 is electrically connected with distribution wire 3, described preventing arc penetrating cable clamp 5 lower end arrange to sparking electrode 4 extend draw electrode 6, described drawing between electrode 6 and sparking electrode 4 is provided with gap in arcing chamber 8.Be inserted in stationary half 51 by movable semi-ring 52, sawtooth 53 place when compressing tablet 55 rests on closed, movable semi-ring 52 can not separate with stationary half 51, can by drawing on electric electrode strap distribution wire, easy for installation.Described drawing on electrode 6 arranges arc-control device, described arc-control device comprises insulated enclosure housing 7, described insulated enclosure housing 7 one end arranges gap in arcing chamber puff prot 9, hydrophobicity shirt rim 10 is provided with outside described insulated enclosure housing 7, the gap in arcing chamber noncontinuous electrode 11 being used for drawing electrode 6 and be connected is set in described insulated enclosure housing 7, in described insulated enclosure housing 7, four gas generating units 12 are set near gap in arcing chamber noncontinuous electrode 11 one end, the high velocity jet air-flow that described gas generating unit 12 produces longitudinally acts on electric arc and sprays along gap in arcing chamber puff prot 9, also comprise the signal pickup assembly 13 of connecting with gap in arcing chamber noncontinuous electrode 11.Described insulated enclosure housing 7 arranges magnet 14, described insulated enclosure housing 7 inside arranges gas generating unit and switches sheet metal 15, described four gas generating units 12 superpose setting vertically and embedded iron block 16 is equipped with in inside, sequence starting when four gas generating units 12 occur on distribution wire 3 road to be struck by lightning, when falling to magnet 14 position under gravity and its adhesive, and form reliable connection with signal pickup assembly 13, high velocity jet gas shock gas generating unit after gas generating unit 12 starts switches sheet metal 15, as the necessary condition that next gas generating unit 12 starts.The beneficial effect of the present embodiment is: the spacing that conveniently can regulate gap in arcing chamber, thus is applicable to different electric pressures, and can according to the position of the position adjustments lightning arrester body of sparking electrode, flexible and convenient to use.
Claims (4)
1. a new distribution circuit arc extinguishing lightning protection clearance apparatus, comprise insulator body (1) and lightning arrester body (2), described insulator body (1) upper end is connected with distribution wire (3), it is characterized in that: described insulator body (1) lower end is flexibly connected with lightning arrester body (2) lower end, described lightning arrester body (2) upper end arranges sparking electrode (4), distribution wire (3) corresponding sparking electrode (4) position arranges preventing arc penetrating cable clamp (5), described preventing arc penetrating cable clamp (5) comprises stationary half (51) and the movable semi-ring (52) of inner hollow, described stationary half (51) and movable semi-ring (52) one end hinged, the multiple sawtooth of described movable semi-ring (52) arranged outside (53), described stationary half (51) port arranges and pulls out button (54), inner to arrange and the compressing tablet (55) pulling out button (54) and be communicated with, described stationary half (51) and/or movable semi-ring (52) inner side arrange steel-tooth (56), the insulating barrier that described steel-tooth (56) penetrates distribution wire (3) is electrically connected with distribution wire (3), described preventing arc penetrating cable clamp (5) lower end arrange extend to sparking electrode (4) draw electrode (6), described drawing between electrode (6) and sparking electrode (4) is provided with gap in arcing chamber (8), described drawing on electrode (6) arranges arc-control device, described arc-control device comprises insulated enclosure housing (7), described insulated enclosure housing (7) one end arranges gap in arcing chamber puff prot (9), described insulated enclosure housing (7) outside is provided with hydrophobicity shirt rim (10), the gap in arcing chamber noncontinuous electrode (11) being used for drawing electrode (6) and be connected is set in described insulated enclosure housing (7), in described insulated enclosure housing (7), four gas generating units (12) are set near gap in arcing chamber noncontinuous electrode (11) one end, the high velocity jet air-flow that described gas generating unit (12) produces longitudinally acts on electric arc and sprays along gap in arcing chamber puff prot (9), also comprise the signal pickup assembly (13) of connecting with gap in arcing chamber noncontinuous electrode (11).
2. a kind of new distribution circuit arc extinguishing lightning protection clearance apparatus according to claim 1, it is characterized in that: described insulated enclosure housing (7) arranges magnet (14), described insulated enclosure housing (7) inside arranges gas generating unit and switches sheet metal (15), four described gas generating units (12) superpose setting vertically and embedded iron block (16) is equipped with in inside, sequence starting when four gas generating units (12) occur on distribution wire (3) road to be struck by lightning, when falling to magnet (14) position under gravity and its adhesive, and formed with signal pickup assembly (13) and be reliably connected, high velocity jet gas shock gas generating unit after gas generating unit (12) starts switches sheet metal (15), as the necessary condition that next gas generating unit (12) starts.
3. a kind of new distribution circuit arc extinguishing lightning protection clearance apparatus according to claim 1, it is characterized in that: described insulator body (1) lower end arranges outward extending bearing plate (17), described bearing plate (17) upside arranges raised line (18), described raised line (18) is arranged slip groove (19), described lightning arrester body (2) lower end arranges contiguous block (20), (20) arrange connecting hole to described contiguous block, construction bolt (21) in described connecting hole, described bolt (21) is through slip groove (19) attaching nut.
4. a kind of new distribution circuit arc extinguishing lightning protection clearance apparatus according to claim 3, is characterized in that: described contiguous block (20) lower end is circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520691301.3U CN204885825U (en) | 2015-09-08 | 2015-09-08 | Novel distribution lines arc extinguishing lightning protection clearance device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520691301.3U CN204885825U (en) | 2015-09-08 | 2015-09-08 | Novel distribution lines arc extinguishing lightning protection clearance device |
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| Publication Number | Publication Date |
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| CN204885825U true CN204885825U (en) | 2015-12-16 |
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| CN201520691301.3U Expired - Fee Related CN204885825U (en) | 2015-09-08 | 2015-09-08 | Novel distribution lines arc extinguishing lightning protection clearance device |
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| CN (1) | CN204885825U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106328327A (en) * | 2016-11-08 | 2017-01-11 | 王巨丰 | Compressed type line span center lightning stroke flashover arc-extinguishing lightning arrester |
| CN106374338A (en) * | 2016-11-08 | 2017-02-01 | 王巨丰 | Solid-phase type line span center lightning stroke flashover arc extinguishing lightning arrester |
| CN107240858A (en) * | 2017-06-12 | 2017-10-10 | 国网山东省电力公司平原县供电公司 | A kind of new distribution circuit arc extinguishing lightning protection clearance apparatus |
| CN108735402A (en) * | 2018-05-23 | 2018-11-02 | 安徽国电京润电力科技有限公司 | A kind of overvoltage automatic adjustment protective device |
| CN108899797A (en) * | 2018-06-15 | 2018-11-27 | 中国电力科学研究院有限公司 | The device and method for controlling the potential transfer electric current and electric arc of extra-high voltage electrified operation |
-
2015
- 2015-09-08 CN CN201520691301.3U patent/CN204885825U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106328327A (en) * | 2016-11-08 | 2017-01-11 | 王巨丰 | Compressed type line span center lightning stroke flashover arc-extinguishing lightning arrester |
| CN106374338A (en) * | 2016-11-08 | 2017-02-01 | 王巨丰 | Solid-phase type line span center lightning stroke flashover arc extinguishing lightning arrester |
| CN106374338B (en) * | 2016-11-08 | 2018-08-10 | 王巨丰 | A kind of solid phase formula line span center lightning stroke flashover arc extinguishing lightning protection device |
| CN106328327B (en) * | 2016-11-08 | 2019-01-08 | 王巨丰 | A kind of compression line span center lightning stroke flashover arc extinguishing lightning protection device |
| CN107240858A (en) * | 2017-06-12 | 2017-10-10 | 国网山东省电力公司平原县供电公司 | A kind of new distribution circuit arc extinguishing lightning protection clearance apparatus |
| CN108735402A (en) * | 2018-05-23 | 2018-11-02 | 安徽国电京润电力科技有限公司 | A kind of overvoltage automatic adjustment protective device |
| CN108899797A (en) * | 2018-06-15 | 2018-11-27 | 中国电力科学研究院有限公司 | The device and method for controlling the potential transfer electric current and electric arc of extra-high voltage electrified operation |
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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: 20151216 Termination date: 20160908 |