CN203607169U - Novel adjustable arcing horn of gap type - Google Patents

Novel adjustable arcing horn of gap type Download PDF

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Publication number
CN203607169U
CN203607169U CN201320624347.4U CN201320624347U CN203607169U CN 203607169 U CN203607169 U CN 203607169U CN 201320624347 U CN201320624347 U CN 201320624347U CN 203607169 U CN203607169 U CN 203607169U
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China
Prior art keywords
adjustable
arcing horn
electrode
insulator string
lateral electrode
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Active
Application number
CN201320624347.4U
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Chinese (zh)
Inventor
朱广名
贺臣
梁文勇
陈宏辉
吴彪
陈国宇
赵淳
林瑞荣
肖建伟
韦炳友
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Wuhan NARI Ltd
Maoming Power Supply Bureau of Guangdong Power Grid Co Ltd
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Wuhan NARI Ltd
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Priority to CN201320624347.4U priority Critical patent/CN203607169U/en
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Abstract

The utility model discloses a novel adjustable arcing horn of a gap type, and the arcing horn is used for installing on an insulator string. The arcing horn is characterized in that the arcing horn consists of an adjustable side cross arm, a fixed side electrode, adjustable side electrodes, a double-bolt clamping hoop, and metallic balls; the adjustable side cross arm and the fixed side electrode are respectively installed at the upper and lower ends of the insulator string; two ends of the adjustable side cross arm are respectively provided with a drill hole; the two adjustable side electrodes respectively passes through the drill holes on the adjustable side cross arm and are fixed on the adjustable side cross arm by the double-bolt clamping hoop; the upper and lower positions of the adjustable side electrodes are adjusted through loosening the double-bolt clamping hoop, thereby enabling an arcing gap to meet the requirements of design; the metallic balls are respectively disposed at the top ends of the fixed side electrode and the adjustable side electrode, thereby forming a spherical electrode. The arcing horn provided by the utility model is also characterized in that the installation and maintenance is convenient, the reliable operation of the insulator string is guaranteed, the lightning trip-out rate of a circuit is reduced, and the arcing horn is convenient for mass installation.

Description

A kind of arcing horn of novel adjustable clearance type
Technical field
The utility model arcing horn is under the jurisdiction of Lightning Protection on Power Transmission Lines field, and specifically it is the one arc gap of can changing to other method, and is applicable to be arranged on the insulator string of any length, simultaneously can also nonexpondable Novel lightning-proof protective device in the time being struck by lightning.
Background technology
In order to reduce the lightning stroke trip accident of circuit, safe and reliable transmission of electric energy, conventionally require to install additional at the overhead transmission line of different electric pressures (>=35kV) insulator string of corresponding length, therefore the safe and reliable of insulator string is to guarantee the requisite part of the normal operation of circuit.What the flashover current producing for fear of thunderbolt was brought insulator string burns; traditional mode is by adopting higher lightning withstand level; but this will certainly bring unnecessary waste, thus be necessary to install other protective devices additional at insulator string two ends, to ensure the safe and reliable of insulation.Arcing horn is as the annex gold utensil of insulator string, and its Main Function is the gap discharge function by self, power frequency continued flow the burning to insulator string of avoiding atmospheric over-voltage or switching overvoltage to produce.
According to the difference of shape and structure, present stage arcing horn substantially can be divided into 4 large classes, i.e. clavate arcing horn, spherical arcing horn, erietiform arcing horn, annular or tennis racket shape arcing horn.Round steel that clavate is is 8-20mm by two diameters forms comparative electrode, and two electrode tips remain on certain distance and form discharging gap, once but the arcing horn of this model burn just may not use; Spherical arcing horn is to install metal ball additional at two electrode tips on the basis of clavate, thereby forms spherical gap to have avoided electrode burn; Erietiform arcing horn is divided into again two kinds of single goat's horn and twin horn cleats, and this structure mainly, by shifting burned part, to guarantee the validity of discharging gap, but must design different specifications for the insulator string of different length; The round steel of one utmost point is curved to U-shaped, another utmost point curves L shaped, the two poles of the earth form annular arcing horn jointly, very large difference of this structure and first three kind structure is that it has certain all pressures effect, improve lightning impulse discharge voltage, conventionally be applied in 220kV ~ 330kV electric pressure circuit, Nanjing part 220kV circuit has been installed this type of and has been recruited arc device on strain insulator-string.But the insulator string length difference of different electric pressures, different regions, unlike material in reality, this brings inconvenience to the design of arcing horn.Therefore, run unit is considered to install and later maintenance inconvenience, often only the insulator of part specification is installed to arcing horn, causes the insulator rate of failure rising of burning, and causes line thunder protection poor effect.
The major advantage of Chinese utility model patent 201120404879.8 " a kind of arcing horn " is that it is simple in structure, easy to maintenance, in system, can be used in conjunction with automatic reclosing, and can effectively shift burning a little of flashover current, guarantee to recruit the reliable distance in arc gap, but for dissimilar insulator string, need to install different specifications, meanwhile, in the time recruiting arc gap to break down, can only change, so device is unsuitable for repeatedly utilizing.
Summary of the invention
The purpose of this utility model is: the deficiency existing in order to overcome prior art, provide a kind of and can regulate the spherical arcing horn device of recruiting arc gap, the utility model device is applicable to the insulator string of any length specification, when recruiting arc gap to be subject to that overvoltage is burnt or other factors and time not up to standard, can adjust gap length by not charged side bolt, thereby guarantee the reliable operation of arcing horn, can not affect again the interruption of transmission of electricity simultaneously.
The technical scheme that the utility model adopts is: a kind of arcing horn of novel adjustable clearance type, be used for being arranged on insulator string, it is characterized in that, by adjustable side transverse arm, motionless lateral electrode, adjustable lateral electrode, two bolt clamps, five part compositions of Metal Ball, adjustable side transverse arm, motionless lateral electrode is arranged on respectively the two ends up and down of insulator string, the two ends of adjustable side transverse arm respectively have a boring, two adjustable lateral electrodes are fixed on adjustable side transverse arm by two bolt clamps through the boring on adjustable side transverse arm respectively, the upper-lower position of adjustable lateral electrode is adjusted by the two bolt clamps of degree of tightness, make to recruit arc gap to meet design requirement, Metal Ball is installed at the top of motionless lateral electrode and adjustable lateral electrode, form spheric electrode.
The arcing horn of novel adjustable clearance type as above, it is characterized in that, described adjustable side transverse arm and adjustable lateral electrode adopt hot-galvanized steel product, two bolt clamps adopt stainless steel products, its effect is fixing adjustable lateral electrode, in the time of the length of needs adjusting play, operate by the two bolt clamps of degree of tightness.
The beneficial effects of the utility model are: the utlity model has following features: reliability service convenient for installation and maintenance, to ensure insulator string, reduce lightning outage rate, be convenient to a large amount of installations.
Accompanying drawing explanation
Fig. 1 is the front view of the typical structure schematic diagram of the utility model embodiment.
Fig. 2 is the vertical view of the adjustable side transverse arm 1 of the utility model embodiment.
Fig. 3 is the vertical view of the motionless lateral electrode 2 of the utility model embodiment.
Fig. 4 is that the supporting insulator string of the utility model is arranged on the working state schematic representation on shaft tower.
Embodiment
In order to understand better the utility model, further illustrate content of the present utility model below in conjunction with embodiment, but content of the present utility model is not only confined to the following examples.Those skilled in the art can make various changes or modifications the utility model, and these equivalent form of values are equally within the listed claims limited range of the application.
Symbol description in accompanying drawing: 1-is adjustable side transverse arm, the motionless lateral electrode of 2-, 3-is adjustable lateral electrode, the two bolt clamps of 4-, 5-Metal Ball, 6-insulator string.
With reference to Fig. 1, a kind of arcing horn that is applicable to various different insulative substring specifications of the present utility model, is made up of adjustable side transverse arm 1, motionless lateral electrode 2, adjustable lateral electrode 3, two bolt clamp 4,5 five parts of Metal Ball.As shown in Figure 1, 2, adjustable lateral electrode 3 is fixed on adjustable side transverse arm 1 by two bolt clamps through the boring on adjustable side transverse arm 1, can adjust by the two bolt clamps of degree of tightness the upper-lower position of adjustable lateral electrode 3, make to recruit arc gap to meet design requirement, on two clavate electrodes, install Metal Ball 5 additional and form spheric electrode.
Adjustable side transverse arm and adjustable lateral electrode adopt hot-galvanized steel product, two bolt clamps adopt stainless steel products, its Main Function is fixing adjustable lateral electrode, in the time of the length of needs adjusting play, can operate by degree of tightness clamp, the side that Metal Ball is arranged on hot galvanizing round steel forms spheric electrode, and the main purpose of Metal Ball is to avoid electrode to burn, and its diameter suggestion adopts 1.2-1.5 times of round steel diameter.
Can, by being connected in parallel on the other trick arc gap of insulator string, can effectively avoid insulator string to be subject to burning and damaging of flashover current.
Can, by adjusting the electrode of a side, make on its insulator string that is adapted to be mounted within different model.
In the time that flashover current is damaged recruiting arc gap to cause, can, in the situation that not having a power failure, drawer at movable side electrode be adjusted, to meet the requirement of rules to discharge gap length, this has not only reduced the danger of live line working, and the reliability service of returning insulator string provides safeguard.
Insulator string is installed after arcing horn, and the lightning withstand level of circuit declines to some extent, but due to the protective effect of arcing horn, insulator string does not all suffer damage, and has reduced greatly the probability of lightning stroke trip.
According to above-mentioned formation, this adjustable clearance type arcing horn, can be convenient and reliable for the protection to insulator string, reduced greatly difficulty of construction.Its simple in structure, easily operation, can repeatedly be used, and economic benefit is higher.
With reference to Fig. 1,2,3, two electrode holders, at the two ends up and down of insulator string 6, arcing horn is in parallel with insulator string 6, jointly forms the insulator string of band gap.
With reference to Fig. 4; the adjustable lateral electrode 3 of arcing horn is installed in the suspending side of insulator string 6 and shaft tower; fixation side is installed in the suspending side of insulator string and circuit; in the time having strong flashover current to pass through on circuit; owing to recruiting, arc Gap-Ratios insulator string is short; recruit the impulse sparkover voltage in arc gap lower than the discharge voltage of insulator string; therefore recruit arc gap first to discharge; what the power frequency arc continuing formed by gap put a passage is directed to arcing horn cigarette burning, thereby has protected the damage of burning of insulator string.
The utility model is adapted to be mounted within the insulator string two ends of multiple different model, greatly reduces the difficulty of construction and installation, is also convenient to later stage hotline maintenance and maintenance.
Finally should be noted that; above content is only in order to illustrate the technical solution of the utility model; but not restriction to the utility model protection range; the simple modification that those of ordinary skill in the art carries out the technical solution of the utility model or be equal to replacement, does not all depart from essence and the scope of technical solutions of the utility model.

Claims (2)

1. the arcing horn of a novel adjustable clearance type, be used for being arranged on insulator string, it is characterized in that, by adjustable side transverse arm, motionless lateral electrode, adjustable lateral electrode, two bolt clamps, five part compositions of Metal Ball, adjustable side transverse arm, motionless lateral electrode is arranged on respectively the two ends up and down of insulator string, the two ends of adjustable side transverse arm respectively have a boring, two adjustable lateral electrodes are fixed on adjustable side transverse arm by two bolt clamps through the boring on adjustable side transverse arm respectively, the upper-lower position of adjustable lateral electrode is adjusted by the two bolt clamps of degree of tightness, make to recruit arc gap to meet design requirement, Metal Ball is installed at the top of motionless lateral electrode and adjustable lateral electrode, form spheric electrode.
2. the arcing horn of novel adjustable clearance type according to claim 1, it is characterized in that, described adjustable side transverse arm and adjustable lateral electrode adopt hot-galvanized steel product, two bolt clamps adopt stainless steel products, its effect is fixing adjustable lateral electrode, in the time of the length of needs adjusting play, operate by the two bolt clamps of degree of tightness.
CN201320624347.4U 2013-10-11 2013-10-11 Novel adjustable arcing horn of gap type Active CN203607169U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320624347.4U CN203607169U (en) 2013-10-11 2013-10-11 Novel adjustable arcing horn of gap type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320624347.4U CN203607169U (en) 2013-10-11 2013-10-11 Novel adjustable arcing horn of gap type

Publications (1)

Publication Number Publication Date
CN203607169U true CN203607169U (en) 2014-05-21

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Application Number Title Priority Date Filing Date
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CN (1) CN203607169U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105336454A (en) * 2015-11-21 2016-02-17 国网江西省电力公司吉安供电分公司 Discharge gap of 35kV line insulator string
CN105957658A (en) * 2016-07-25 2016-09-21 国网湖南省电力公司 Ice-preventing insulator for ground wire ice-melting reconstruction
CN110082652A (en) * 2019-04-29 2019-08-02 电力规划总院有限公司 Choosing method, the device of arcing horn and insulator chain in overhead transmission line
CN111751688A (en) * 2020-06-17 2020-10-09 广东电网有限责任公司 Partial discharge simulation device for adjusting gap of needle plate with electricity

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105336454A (en) * 2015-11-21 2016-02-17 国网江西省电力公司吉安供电分公司 Discharge gap of 35kV line insulator string
CN105957658A (en) * 2016-07-25 2016-09-21 国网湖南省电力公司 Ice-preventing insulator for ground wire ice-melting reconstruction
CN110082652A (en) * 2019-04-29 2019-08-02 电力规划总院有限公司 Choosing method, the device of arcing horn and insulator chain in overhead transmission line
CN110082652B (en) * 2019-04-29 2021-09-03 电力规划总院有限公司 Selection method and device for arcing horn and insulator string in overhead transmission line
CN111751688A (en) * 2020-06-17 2020-10-09 广东电网有限责任公司 Partial discharge simulation device for adjusting gap of needle plate with electricity

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: MAOMING POWER SUPPLY BUREAU OF GUANGDONG POWER GRI

Free format text: FORMER OWNER: WUHAN NARI LIMITED LIABILITY COMPANY OF STATE GRID ELECTRIC POWER RESEARCH INSTITUTE

Effective date: 20140523

Owner name: WUHAN NARI LIMITED LIABILITY COMPANY OF STATE GRID

Effective date: 20140523

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 430074 WUHAN, HUBEI PROVINCE TO: 525000 MAOMING, GUANGDONG PROVINCE

TR01 Transfer of patent right

Effective date of registration: 20140523

Address after: 525000 Guangdong Province, Maoming City, Guan Shan Road, No. four, No. 2

Patentee after: Maoming Power Supply Bureau, Guangdong Grid Co., Ltd.

Patentee after: Wuhan Nari Limited Liability Company of State Grid Electric Power Research Institute

Address before: 430074 Hubei Province, Wuhan city Hongshan District Luoyu Road No. 143

Patentee before: Wuhan Nari Limited Liability Company of State Grid Electric Power Research Institute