CN204333600U - A kind of lightning protection device of high voltage supply circuit - Google Patents

A kind of lightning protection device of high voltage supply circuit Download PDF

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Publication number
CN204333600U
CN204333600U CN201520086452.6U CN201520086452U CN204333600U CN 204333600 U CN204333600 U CN 204333600U CN 201520086452 U CN201520086452 U CN 201520086452U CN 204333600 U CN204333600 U CN 204333600U
Authority
CN
China
Prior art keywords
zinc oxide
oxide arrester
arc electrode
insulator
rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201520086452.6U
Other languages
Chinese (zh)
Inventor
侯庆雷
李俊
朱伟
苑学强
李兴国
崔大明
程快
张志华
孙守文
纪洋溪
王为帅
夏洪强
李超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Zaozhuang Power Supply Co of State Grid Shandong Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Zaozhuang Power Supply Co of State Grid Shandong Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, Zaozhuang Power Supply Co of State Grid Shandong Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201520086452.6U priority Critical patent/CN204333600U/en
Application granted granted Critical
Publication of CN204333600U publication Critical patent/CN204333600U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of lightning protection device of high voltage supply circuit, comprise insulator, zinc oxide arrester, penetrating cable clamp and starting rod, described penetrating cable clamp is arranged on insulator upper end, penetrating cable clamp comprises base and gland, by some connecting bolt connections between base and gland, insulator lower end is provided with steel pin, and described zinc oxide arrester is made up of insulating coating and the resistor valve sheet set within it, and zinc oxide arrester is connected by connecting plate with steel pin; This device forms discharging gap by arranging between starting rod and zinc oxide arrester, thunder and lightning residual voltage is limited on overvoltage, fundamentally solve the generation of lightning-caused breaking accident, design science, practical, structure is simple and lightning protection effect is reliable, and by arranging upper arc electrode and lower arc electrode and forming discharging gap and power-frequency voltage is isolated, make zinc oxide arrester bear voltage hardly, substantially prolongs the useful life of zinc oxide arrester.

Description

A kind of lightning protection device of high voltage supply circuit
Technical field
The utility model relates to electric power protection, specifically a kind of lightning protection device of high voltage supply circuit.
Background technology
In ultra-high-tension power transmission line, transmission pressure is easy to cause because of thunderbolt the generation of broken string or trip accident, and cause the main cause of broken string to be on lightning stroke flashover passage, build arc form power frequency continued flow, the temperature of arc root is very high, interiorly can be blown by wire asking in short-term.Therefore, usual needs arrange lightning protection device on ultra-high-tension power transmission line, to avoid the generation of above-mentioned situation, the lightning protection measures that existing ultra-high-tension power transmission line is taked is generally install overhead ground wire, puncture arc-preventing metal utensil, lightning protection pillar insulator and zinc oxide to take shelter from the thunder, but these measures still exist various problem, and such as zinc oxide arrester still bears voltage when normal electricity is carried, useful life shortens greatly, affects normal lightning protection effect.
Utility model content
The purpose of this utility model is the lightning protection device providing a kind of high voltage supply circuit, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of lightning protection device of high voltage supply circuit, comprise insulator, zinc oxide arrester, penetrating cable clamp and starting rod, described penetrating cable clamp is arranged on insulator upper end, penetrating cable clamp comprises base and gland, by some connecting bolt connections between base and gland, insulator lower end is provided with steel pin, and described zinc oxide arrester is made up of insulating coating and the resistor valve sheet set within it, and zinc oxide arrester is connected by connecting plate with steel pin, described starting rod and described zinc oxide arrester are arranged at the homonymy of insulator, and one end of described starting rod is connected with described base, is provided with sparking electrode at the other end of starting rod, described insulator is provided with upper arc electrode relative to the opposite side of starting rod installed surface, steel pin is provided with lower arc electrode relative to the opposite side of zinc oxide arrester installed surface, described upper arc electrode is connected with base by fixture, lower arc electrode is connected with connecting plate by fixture, upper arc electrode is provided with ball head, lower arc electrode is provided with lower ball head, governor motion is provided with in lower arc electrode bottom, described governor motion comprise supporting bracket and and be fixedly connected on adjusting screw(rod) on lower arc electrode, offer screwed hole on the supporting plate, screwed hole in adjusting screw(rod) and supporting bracket is connected.
As further program of the utility model: described connecting plate is fixed on described zinc oxide arrester lower end connecting rod by one end forms with two the stainless steel semicircles being arranged on the described connecting rod other end, and described stainless steel semicircle is fastened on steel pin.
Compared with prior art, the beneficial effects of the utility model are: this device forms discharging gap by arranging between starting rod and zinc oxide arrester, thunder and lightning residual voltage is limited on overvoltage, fundamentally solve the generation of lightning-caused breaking accident, design science, practical, structure is simple and lightning protection effect is reliable, and by arranging upper arc electrode and lower arc electrode and forming discharging gap and power-frequency voltage is isolated, make zinc oxide arrester bear voltage hardly, substantially prolongs the useful life of zinc oxide arrester.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
1-insulator in figure, 2-zinc oxide arrester, 21-insulating coating, 22-resistor valve sheet, 23-connecting plate, 3-penetrating cable clamp, 31-base, 32-gland, 33-connecting bolt, 4-steel pin, the upper arc electrode of 5-, the upper ball head of 51-, arc electrode under 6-, ball head under 61-, 7-governor motion, 71-supporting bracket, 72-adjusting screw(rod), 8-fixture, 9-starting rod.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, in the utility model embodiment, a kind of lightning protection device of high voltage supply circuit, comprise insulator 1, zinc oxide arrester 2, penetrating cable clamp 3 and starting rod 9, described penetrating cable clamp 3 is arranged on insulator 1 upper end, penetrating cable clamp 3 comprises base 31 and gland 32, by the connection of some connecting bolts 33 between base 31 and gland 32, insulator 1 lower end is provided with steel pin 4, described zinc oxide arrester 2 is made up of insulating coating 21 and the resistor valve sheet 22 set within it, zinc oxide arrester 2 is connected by connecting plate 23 with steel pin 4, described connecting plate 23 is fixed on described zinc oxide arrester 2 lower end connecting rod by one end forms with two the stainless steel semicircles being arranged on the described connecting rod other end, described stainless steel semicircle is fastened on steel pin 4, described starting rod 9 and described zinc oxide arrester 2 are arranged at the homonymy of insulator 1, one end of described starting rod 9 is connected with described base 31, be provided with sparking electrode at the other end of starting rod 9, described sparking electrode and zinc oxide arrester 2 upper end form discharging gap, described insulator 1 is provided with upper arc electrode 5 relative to the opposite side of starting rod 9 installed surface, steel pin 4 is provided with lower arc electrode 6 relative to the opposite side of zinc oxide arrester 2 installed surface, described upper arc electrode 5 is connected with base 31 by fixture 8, lower arc electrode 6 is connected with connecting plate 23 by fixture 8, upper arc electrode 5 is provided with ball head 51, lower arc electrode 6 is provided with lower ball head 61, discharging gap is formed between described upper ball head 51 and lower ball head 61, governor motion 7 is provided with in lower arc electrode 6 bottom, described governor motion 7 comprise supporting bracket 71 and and be fixedly connected on adjusting screw(rod) 72 on lower arc electrode 6, supporting bracket 71 offers screwed hole, screwed hole in adjusting screw(rod) 72 and supporting bracket 71 is connected, screw the discharging gap between the adjustable upper arc electrode 5 of adjusting screw(rod) 72 and lower arc electrode 6,
When in work, transmission line normally runs, discharging gap between zinc oxide arrester 2 passes through between upper arc electrode 5 and lower arc electrode 6 and power-frequency voltage are isolated, zinc oxide arrester 2 bears voltage hardly, substantially prolongs the useful life of zinc oxide arrester 2, upper discharging gap between arc electrode 5 and lower arc electrode 6 is regulated by governor motion 7, make the flashover voltage of the discharge voltage benefit insulator 1 of this discharging gap, when device is subject to being struck by lightning, discharging gap between upper arc electrode 5 and lower arc electrode 6 is breakdown, there is Low ESR in zinc oxide arrester 2 body, lightning current is discharged into the earth by earth lead, after lightning impulse, power-frequency voltage is carried on zinc oxide arrester 2 body, the resistance of zinc oxide arrester 2 body becomes large instantaneously, the electric current passed through is suppressed in lower numerical value, increase falls in discharging gap arc voltage, the insulation of discharging gap recovers rapidly, electric arc extinguishes within the extremely short time, power frequency continued flow is completely interrupted, thus prevent the tripping operation that caused by lightning stroke flashover and line-outage contingency, ensure the reliability of power supply.
Operation principle of the present utility model is: this device forms discharging gap by arranging between starting rod 9 and zinc oxide arrester 2, thunder and lightning residual voltage is limited on overvoltage, fundamentally solve the generation of lightning-caused breaking accident, design science, practical, structure is simple and lightning protection effect is reliable, and by arranging upper arc electrode 5 and lower arc electrode 6 and forming discharging gap and power-frequency voltage is isolated, make zinc oxide arrester 2 bear voltage hardly, substantially prolongs the useful life of zinc oxide arrester 2.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technical scheme in each embodiment also through appropriately combined, can form other execution modes that it will be appreciated by those skilled in the art that.

Claims (2)

1. the lightning protection device of a high voltage supply circuit, comprise insulator, zinc oxide arrester, penetrating cable clamp and starting rod, it is characterized in that, described penetrating cable clamp is arranged on insulator upper end, penetrating cable clamp comprises base and gland, by some connecting bolt connections between base and gland, insulator lower end is provided with steel pin, described zinc oxide arrester is made up of insulating coating and the resistor valve sheet set within it, and zinc oxide arrester is connected by connecting plate with steel pin, described starting rod and described zinc oxide arrester are arranged at the homonymy of insulator, and one end of described starting rod is connected with described base, is provided with sparking electrode at the other end of starting rod, described insulator is provided with upper arc electrode relative to the opposite side of starting rod installed surface, steel pin is provided with lower arc electrode relative to the opposite side of zinc oxide arrester installed surface, described upper arc electrode is connected with base by fixture, lower arc electrode is connected with connecting plate by fixture, upper arc electrode is provided with ball head, lower arc electrode is provided with lower ball head, governor motion is provided with in lower arc electrode bottom, described governor motion comprise supporting bracket and and be fixedly connected on adjusting screw(rod) on lower arc electrode, offer screwed hole on the supporting plate, screwed hole in adjusting screw(rod) and supporting bracket is connected.
2. the lightning protection device of a kind of high voltage supply circuit according to claim 1, it is characterized in that, described connecting plate is fixed on described zinc oxide arrester lower end connecting rod by one end forms with two the stainless steel semicircles being arranged on the described connecting rod other end, and described stainless steel semicircle is fastened on steel pin.
CN201520086452.6U 2015-02-02 2015-02-02 A kind of lightning protection device of high voltage supply circuit Expired - Fee Related CN204333600U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520086452.6U CN204333600U (en) 2015-02-02 2015-02-02 A kind of lightning protection device of high voltage supply circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520086452.6U CN204333600U (en) 2015-02-02 2015-02-02 A kind of lightning protection device of high voltage supply circuit

Publications (1)

Publication Number Publication Date
CN204333600U true CN204333600U (en) 2015-05-13

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105023668A (en) * 2015-06-29 2015-11-04 蔡桂钧 Zinc oxide arrester for power plant
CN105514802A (en) * 2016-01-27 2016-04-20 武汉水院电气有限责任公司 Two-stage series gap lightning flashover protector capable of being replaced in electrified mode
CN113809640A (en) * 2021-09-09 2021-12-17 国网山东省电力公司烟台市牟平区供电公司 Parallel gap device of lightning protection insulator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105023668A (en) * 2015-06-29 2015-11-04 蔡桂钧 Zinc oxide arrester for power plant
CN105514802A (en) * 2016-01-27 2016-04-20 武汉水院电气有限责任公司 Two-stage series gap lightning flashover protector capable of being replaced in electrified mode
CN105514802B (en) * 2016-01-27 2017-08-04 武汉水院电气有限责任公司 Can charged for replacement two-stage series connection gap lightning stroke flashover protector
CN113809640A (en) * 2021-09-09 2021-12-17 国网山东省电力公司烟台市牟平区供电公司 Parallel gap device of lightning protection insulator

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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: 20150513

Termination date: 20160202