CN209071059U - A kind of outer series connection fixed interval (FI) Zinc-Oxide Arrester of 10kV route - Google Patents

A kind of outer series connection fixed interval (FI) Zinc-Oxide Arrester of 10kV route Download PDF

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Publication number
CN209071059U
CN209071059U CN201821994905.5U CN201821994905U CN209071059U CN 209071059 U CN209071059 U CN 209071059U CN 201821994905 U CN201821994905 U CN 201821994905U CN 209071059 U CN209071059 U CN 209071059U
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discharge lever
section
curved arc
arc section
support tube
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Inventor
娄诗纯
娄国孟
吴爱军
殷展
崔浩
徐晔
储海兵
张怡
俞叶青
孙玉波
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Shanghai Yong Yi Electrical Appliances Co Ltd
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Shanghai Yong Yi Electrical Appliances Co Ltd
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Abstract

The utility model discloses a kind of outer series connection fixed interval (FI) Zinc-Oxide Arresters of 10kV route, including lightning arrester body and umbrella sheath.Lightning arrester body includes support tube, upper and lower electrode, metal connecting piece and upper and lower discharge lever.Metal connecting piece is located at the middle part of support tube.Upper and lower discharge lever is made and including thread segment, section of extending, bending segment and end of a round steel;Bending segment is S-shaped and including sequentially connected first curved arc section, vertical extension member, the second curved arc section and is obliquely extended section;End is nose cone;Upper and lower discharge lever is mounted on metal connecting piece and lower electrode in the opposite mode of the second curved arc section, and linear distance nearest between the second curved arc section of upper and lower discharge lever is made to form fixed 40 ± 5mm of the air gap.The arrester of the utility model has connected Zinc-Oxide Arrester the air gap of fixed electric discharge, not only makes in-site installation convenient, flexible, is more advantageous to high-tension line by external series gap blow-out after Lightning Over-voltage electric discharge.

Description

A kind of outer series connection fixed interval (FI) Zinc-Oxide Arrester of 10kV route
Technical field
The utility model relates to a kind of outer series connection fixed interval (FI) Zinc-Oxide Arresters of 10kV route.
Background technique
10kv ultra-high-tension power transmission line is that quantity is most in power grid, cumulative length longest, and the closest with user-association Route.When distribution line is by being struck by lightning, if not taking safeguard measure, Yi Fasheng lightning stroke trip accident, or even cause insulation sublist Face is by electric arc burn, conductor cord disconnection phenomenon.Related scholar mostly uses arrester and lightning protection hardware to improve the anti-of route at this stage Thunder is horizontal, however installs the shortcomings that arrester and lightning protection hardware are in the presence of big difficulty and high construction cost is set up additional on a large scale.In addition, keeping away Thunder device and installation need to consider effectively to cooperate with insulator.In terms of lightning protection hardware, protecting effect need to ensure connecing for shaft tower Ground device is good, ground resistance is qualified, exists in practice and installs the disadvantages of bad, arc extinction is difficult.
Utility model content
The outer series connection for providing a kind of 10kV route the purpose of the utility model is to overcome the defect of the prior art is fixed Gap Zinc-Oxide Arrester, not only in-site installation is convenient for it, is more advantageous to high-tension line by external empty after Lightning Over-voltage electric discharge The blow-out of gas gap.
Purpose of the utility model is realized as follows: a kind of outer series connection fixed interval (FI) zinc oxide of 10kV route is lightning-arrest Device, including lightning arrester body and umbrella sheath;The lightning arrester body includes support tube and is located at support tube correspondingly The upper and lower electrode of upper and lower end further includes metal connecting piece and upper and lower discharge lever;Wherein,
The middle part and lower part of the support tube radially open up a middle part perforation and underpunch correspondingly;
During the middle part perforation and underpunch for corresponding to support tube on the outer surface of the umbrella sheath project correspondingly Portion's erecting bed and lower part erecting bed, and respectively open up on middle part erecting bed and lower part erecting bed one perforate with middle part it is coaxial Jack and the jack coaxial with underpunch;
A tapped blind hole coaxial with the underpunch of support tube is opened up on the side of the lower electrode;
A tapped blind hole is opened up on the metal connecting piece, the metal connecting piece is with the middle part of its tapped blind hole and support tube Coaxial mode of perforating is embedded in support tube;
Zinc oxide valve plate is placed between top electrode and metal connecting piece in the support tube, the metal connection in support tube Insulated support is filled between part and lower electrode;
Described each piece round steel of freedom of upper and lower discharge lever be made and including from it is rear to preceding sequentially connected thread segment, extend Section, bending segment and end;The bending segment is S-shaped and including sequentially connected first curved arc section, vertical extension member, the second curved arc Section and be obliquely extended section;The end is nose cone;Upper and lower discharge lever is a pair of in the opposite mode one of their the second curved arc section It is mounted on answering on metal connecting piece and lower electrode, i.e., the thread segment of the described lower discharge lever is mounted on the side of lower electrode and opens up Tapped blind hole in and be fastened on the lower part erecting bed of umbrella sheath by a nut, the thread segment installation of the upper discharge lever It is fastened on the middle part erecting bed of umbrella sheath in the tapped blind hole of the metal connecting piece and through a nut, makes electric discharge Nearest linear distance forms fixed the air gap between second curved arc section of bar and the second curved arc section of lower discharge lever, is 40 ±5mm。
The outer series connection fixed interval (FI) Zinc-Oxide Arrester of above-mentioned 10kV route, wherein the arrester further includes two Protective jacket and an external insulation sleeve;One protective jacket covers at the rear portion of the section of extending of the outer surface and upper discharge lever of middle part erecting bed Between outer surface;Another protective jacket cover the section of extending of the outer surface and lower discharge lever of lower part erecting bed external rear face it Between;The external insulation sleeve includes front, middle part and rear portion, the front of the external insulation sleeve in rectangle and for double-layer structure and length with The distance between the end of upper and lower discharge lever adaptation, the middle part and rear portion of the external insulation sleeve are single layer, the middle part of external insulation sleeve In isosceles trapezoid, the rear portion of external insulation sleeve is greater than twice of the distance between section of extending of upper and lower discharge lever in rectangle and length, Among the rear portion of the external insulation sleeve and rear portion both sides respectively symmetrically open up two pairs of location holes;The front of the external insulation sleeve covers On the end of upper and lower discharge lever, the rear portion both sides of insulation sleeve are turned back again after respectively bypassing the front of the section of extending of upper and lower discharge lever To centre, keep a pair of of location hole on both sides and two pairs of intermediate location holes be overlapped one by one, and is set in the location hole of each overlapping Set the positioning pin that material is glass fibre.
The outer series connection fixed interval (FI) Zinc-Oxide Arrester of above-mentioned 10kV route, wherein the diameter of the upper and lower discharge lever For 12mm;The specification of the thread segment is M10, length 42mm;The first curved arc section is 90 ° of circular arcs that radius is 10mm The distance from bottom of section, the center of circle to the thread segment of the first curved arc section is 76.75mm;The length of the vertical extension member is 8mm; The second curved arc section is 110 ° of arc sections that radius is 11mm, the distance from bottom in the center of circle of the second curved arc section to the thread segment For 97.75mm;The section that is obliquely extended is extended to the tangential direction of the tail end of the second curved arc section;The taper of the end is 60°。
The outer series connection fixed interval (FI) Zinc-Oxide Arrester of above-mentioned 10kV route, wherein all on the umbrella sheath The outer diameter of full skirt is identical and the upper and lower end face of each full skirt is in the identical inclined-plane of slope.
The outer series connection fixed interval (FI) Zinc-Oxide Arrester of the 10kV route of the utility model has the following characteristics that will be upper and lower The air gap of the electric discharge formed between discharge lever and lightning arrester body are connected into an entirety, and guarantee upper and lower discharge lever The distance of the air gap is fixed, and the mesh of lightning protection is reached under the common cooperation by zinc oxide valve plate and concatenated the air gap 's.Not only stable discharge, and in-site installation is convenient, does not need change debugging the air gap.The arrester of the utility model is transported Row is safe and reliable, convenient for safeguarding, and it is continuous that the discharge lever of arc line shaped designs the power frequency after being conducive to make high-tension line Lightning Over-voltage Blow-out is flowed, avoids insulated conductor that lightning-caused breaking accident occurs, effectively improves the stability of the distribution network systems power supply under lightning hazards.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the outer series connection fixed interval (FI) Zinc-Oxide Arrester of the 10kV route of the utility model;
Fig. 2 is the upper and lower discharge lever outside the 10kV route of the utility model in series connection fixed interval (FI) Zinc-Oxide Arrester Structural schematic diagram;
Fig. 3 is the expansion of the external insulation sleeve outside the 10kV route of the utility model in series connection fixed interval (FI) Zinc-Oxide Arrester Figure;
Fig. 4 is the top view of Fig. 3;
Fig. 5 is the scheme of installation of external insulation sleeve;
Fig. 6 is the bottom view of Fig. 5;
Fig. 7 is the A-A direction view in Fig. 5.
Specific embodiment
Below in conjunction with attached drawing, the utility model is described in further detail.
Please refer to Fig. 1 to Fig. 7, the outer series connection fixed interval (FI) Zinc-Oxide Arrester of the 10kV route of the utility model, including Lightning arrester body and seamlessly cover the umbrella sheath 1 on lightning arrester body.
Umbrella sheath 1 is integrally suppressed by silicon rubber, the outer diameter of all full skirts on the umbrella sheath 1 it is identical and The upper and lower end face of each full skirt is in the identical inclined-plane of slope.
Lightning arrester body includes support tube 2 and is located at the top electrode 3 of the upper and lower end of support tube 2, lower electrode correspondingly 4, it further include a metal connecting piece 5, upper discharge lever 6, lower discharge lever 6 ', two protective jackets 7 and an external insulation sleeve 8;Wherein:
Support tube 2 is suppressed by epoxy resin, and the middle part and lower part of support tube 2 radially open up in one correspondingly Portion's perforation and underpunch;
The middle part perforation and underpunch that support tube 2 is corresponded on the outer surface of umbrella sheath 1 project middle part correspondingly Erecting bed 11 and lower part erecting bed 12, and respectively open up one on middle part erecting bed 11 and lower part erecting bed 12 and perforate with middle part Coaxial jack and the jack coaxial with underpunch;
A tapped blind hole coaxial with the underpunch of support tube 2 is opened up on the side of lower electrode 4;
A tapped blind hole is opened up on metal connecting piece 5, the metal connecting piece 5 is with the middle part of its tapped blind hole and support tube 2 Coaxial mode of perforating is embedded in insulation supporting cylinder 2;
Zinc oxide valve plate 21 is set between the top electrode 3 in support tube 2 and metal connecting piece 5, constitutes the lightning protection of arrester Section;Insulator supporting element 22 is set between the metal connecting piece 5 and lower electrode 4 in support tube 2, constitutes the insulating segment of arrester;
Upper discharge lever 6 and 6 ' piece round steel of each freedom of lower discharge lever are made and including from rear to preceding sequentially connected thread segment 61, section of extending 62, bending segment 63 and end 64;Bending segment 63 is S-shaped and including sequentially connected first curved arc section 63a, vertical Extended segment 63b, the second curved arc section 63c and it is obliquely extended a section 63d;End 64 is nose cone;
Upper discharge lever 6 is mounted on lower discharge lever 6 ' in the opposite mode of their the second curved arc section 63c correspondingly On metal connecting piece 5 and lower electrode 4, i.e., the thread segment 61 of upper discharge lever 6 is mounted in the tapped blind hole of metal connecting piece 5 and leads to It crosses a nut 60 to be fastened on the middle part erecting bed 11 of umbrella sheath 1, the thread segment 61 of lower discharge lever 6 ' is mounted on lower electrode 4 It is fastened on the lower part erecting bed 12 of umbrella sheath 1 in the tapped blind hole opened up on side and by a nut 60, makes electric discharge Nearest linear distance L is 40mm ± 5mm between the second curved arc section 63c and the second curved arc section 63c of lower discharge lever 6 ' of bar 6;
The external rear face of the section 62 of extending of one 7 sets of protective jacket outer surface and upper discharge lever 6 in middle part erecting bed 11 Between;The external rear face of the section 62 of extending of 7 sets of another protective jacket outer surfaces and lower discharge lever 6 ' in lower part erecting bed 12 Between;
External insulation sleeve 8 by UV resistant, electrical erosion resistance, resistance to filth silicon rubber be made and including front 81, middle part 82 and after Portion 83;The front 81 of insulation sleeve 8 is in rectangle and is the end 64 and lower discharge lever 6 ' of double-layer structure and length and upper discharge lever 6 The distance between end 64 adaptation, the middle part 82 and rear portion 83 of the external insulation sleeve 8 are single layer, and middle part 82 is in isosceles trapezoid, after Portion 83 is in rectangle and what length was greater than extend section 62 and the lower discharge lever 6 ' of upper discharge lever 6 extends the two of the distance between section 62 Times, among the rear portion of the external insulation sleeve 8 and rear portion both sides respectively symmetrically open up two pairs of location holes 80;Before the external insulation sleeve 8 On the end 64 of upper discharge lever 6 and the end 64 of lower discharge lever 6 ', 83 both sides of rear portion of external insulation sleeve 8 are respectively bypassed in 81 sets of portion Centre is gone back to again behind the front of the section 62 of extending of the front and lower discharge lever 6 ' of the section 62 of extending of upper discharge lever 6, makes both sides A pair of of location hole 80 and two pairs of intermediate location holes are be overlapped one by one, and it is glass that material, which is arranged, in the location hole of each overlapping 80 The positioning pin 800 of fiber.
In an optimal embodiment, upper discharge lever 6 and lower discharge lever 6 ' use diameter to make for the A3 round steel of 12mm; The specification of thread segment 61 is M10, and length H1 is 42mm;The first curved arc section 63a in bending segment 63 is 90 ° of circles that radius is 10mm Segmental arc, the distance H2 of the center of circle to the rear end of thread segment 61 of the first curved arc section 63a are 76.75mm;The length of vertical extension member 63b For 8mm;Second curved arc section 63c is 110 ° of arc sections that radius is 11mm, behind the center of circle to thread segment 61 of the second curved arc section 63c The distance H3 at end is 97.75mm;Being obliquely extended section 63d is extended to the tangential direction of the tail end of the second curved arc section 63c;Discharge lever The taper of 6 end 64 is 60 °, and the head of end 64 is the arc head that radius R3 is 1mm, the head of end 64 to thread segment 61 Rear end distance H4 be 115.5mm.
The outer series connection fixed interval (FI) Zinc-Oxide Arrester of the 10kV route of the utility model, by the lightning protection section on top and lower part Insulating segment be connected in series, and on the insulating segment of lower part draw arc upper discharge lever 6 and lower discharge lever 6 ', by upper discharge lever Nearest linear distance forms fixed the air gap between 6 and lower discharge lever 6 ', and the distance of the air gap is made to be fixed as 40 ± 5mm, without changing debugging when in-site installation.Upper discharge lever 6 and lower discharge lever 6 ' are all made of nut 60 and are fastened on support tube 2 It can prevent discharge lever 6 and lower discharge lever 6 ' from rotating.
The outer series connection fixed interval (FI) Zinc-Oxide Arrester of the 10kV route of the utility model, is installed in parallel with insulator, protects Line insulator is protected, overhead transmission line lightning-caused breaking and insulator arc-over are prevented.Pass through zinc oxide valve plate and concatenated the air gap It is common cooperation under achieve the purpose that lightning protection.When route is influenced by lightning impulse overvoltage or power-frequency overvoltage, Can be before overvoltage reach the critical point of insulator arc-over, the air gap outside insulating segment is discharged, zinc oxide valve plate movement, will Overvoltage introduces the earth, it is ensured that the normal work of insulator and conducting wire effectively improves the distribution network systems power supply under lightning hazards Stability.Upper and lower discharge lever and insulating segment as a whole, are guaranteed that the distance of the air gap is fixed by the utility model.It puts When electric, the conical end of upper and lower discharge lever can be such that the electric arc between upper and lower discharge lever extends and guide the external empty of insulating segment into Between, be conducive to blow-out after electric discharge.External insulation sleeve is covered between upper and lower discharge lever, can adequately protect and be exposed to the upper and lower of the external world Discharge lever is from short circuit caused by the long-term erosion of external environment and toy.
Above embodiments are only for illustration of the utility model, rather than limitations of the present invention, related technical field Technical staff can also make various transformation or modification in the case where not departing from the spirit and scope of the utility model, because This all equivalent technical solution also should belong to the scope of the utility model, should be limited by each claim.

Claims (4)

1. a kind of outer series connection fixed interval (FI) Zinc-Oxide Arrester of 10kV route, including lightning arrester body and umbrella sheath;It is described Lightning arrester body includes support tube and is located at the upper and lower electrode of the upper and lower end of support tube correspondingly, further includes metal connection Part and upper and lower discharge lever;It is characterized in that,
The middle part and lower part of the support tube radially open up a middle part perforation and underpunch correspondingly;
The middle part perforation and underpunch that support tube is corresponded on the outer surface of the umbrella sheath project middle part peace correspondingly Platform and lower part erecting bed are filled, and respectively opens up on middle part erecting bed and lower part erecting bed one and perforates coaxial jack with middle part With the jack coaxial with underpunch;
A tapped blind hole coaxial with the underpunch of support tube is opened up on the side of the lower electrode;
A tapped blind hole is opened up on the metal connecting piece, the metal connecting piece is with the perforation of the middle part of its tapped blind hole and support tube Coaxial mode is embedded in support tube;
Place zinc oxide valve plate between top electrode and metal connecting piece in the support tube, the metal connecting piece in support tube with Insulated support is filled between lower electrode;
Described each piece round steel of freedom of upper and lower discharge lever be made and including from it is rear to preceding sequentially connected thread segment, it is section of extending, curved Trisection and end;The bending segment it is S-shaped and including sequentially connected first curved arc section, vertical extension member, the second curved arc section and It is obliquely extended section;The end is nose cone;Upper and lower discharge lever in the opposite mode of their the second curved arc section correspondingly It is mounted on metal connecting piece and lower electrode, i.e., the thread segment of the described lower discharge lever is mounted on the spiral shell opened up on the side of lower electrode It is fastened on the lower part erecting bed of umbrella sheath in line blind hole and by a nut, the thread segment of the upper discharge lever is mounted on institute It states in the tapped blind hole of metal connecting piece and is fastened on the middle part erecting bed of umbrella sheath by a nut, make discharge lever Nearest linear distance forms fixed the air gap between second curved arc section and the second curved arc section of lower discharge lever, be 40 ± 5mm。
2. the outer series connection fixed interval (FI) Zinc-Oxide Arrester of 10kV route according to claim 1, which is characterized in that described Arrester further includes two protective jackets and an external insulation sleeve;One protective jacket covers outer surface and upper electric discharge in middle part erecting bed Between the external rear face of the section of extending of bar;Another protective jacket is covered in the outer surface of lower part erecting bed and extending for lower discharge lever Between the external rear face of section;The external insulation sleeve includes front, middle part and rear portion, and the front of the external insulation sleeve in rectangle and is The distance between double-layer structure and length and end of upper and lower discharge lever are adapted to, and the middle part and rear portion of the external insulation sleeve are list Layer, the middle part of external insulation sleeve are in isosceles trapezoid, and the rear portion of external insulation sleeve is greater than the section of extending of upper and lower discharge lever in rectangle and length The distance between twice, among the rear portion of the external insulation sleeve and rear portion both sides respectively symmetrically open up two pairs of location holes;This is outer The front of insulation sleeve covers on the end of upper and lower discharge lever, and the rear portion both sides of insulation sleeve respectively bypass extending for upper and lower discharge lever Centre is gone back to again behind the front of section, keeps a pair of of location hole on both sides and two pairs of intermediate location holes be overlapped one by one, and each The positioning pin that material is glass fibre is set in the location hole of overlapping.
3. the outer series connection fixed interval (FI) Zinc-Oxide Arrester of 10kV route according to claim 1, which is characterized in that described The diameter of upper and lower discharge lever is 12mm;The specification of the thread segment is M10, length 42mm;The first curved arc section is radius Distance from bottom for 90 ° of arc sections of 10mm, the center of circle to the thread segment of the first curved arc section is 76.75mm;It is described vertically to prolong The length for stretching section is 8mm;The second curved arc section is 110 ° of arc sections that radius is 11mm, and the center of circle of the second curved arc section is to described The distance from bottom of thread segment is 97.75mm;The section that is obliquely extended is extended to the tangential direction of the tail end of the second curved arc section;Institute The taper for stating end is 60 °.
4. the outer series connection fixed interval (FI) Zinc-Oxide Arrester of 10kV route according to claim 1, which is characterized in that described The outer diameter of all full skirts is identical on umbrella sheath and the upper and lower end face of each full skirt is in the identical inclined-plane of slope.
CN201821994905.5U 2018-11-30 2018-11-30 A kind of outer series connection fixed interval (FI) Zinc-Oxide Arrester of 10kV route Active CN209071059U (en)

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Application Number Priority Date Filing Date Title
CN201821994905.5U CN209071059U (en) 2018-11-30 2018-11-30 A kind of outer series connection fixed interval (FI) Zinc-Oxide Arrester of 10kV route

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Application Number Priority Date Filing Date Title
CN201821994905.5U CN209071059U (en) 2018-11-30 2018-11-30 A kind of outer series connection fixed interval (FI) Zinc-Oxide Arrester of 10kV route

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113783172A (en) * 2021-07-22 2021-12-10 西安交通大学 Intelligent combined protection assembly with external series triggering type overvoltage protection gap

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113783172A (en) * 2021-07-22 2021-12-10 西安交通大学 Intelligent combined protection assembly with external series triggering type overvoltage protection gap

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