CN206210482U - A kind of lightning protection line insulator with pressure and discharging gap function - Google Patents

A kind of lightning protection line insulator with pressure and discharging gap function Download PDF

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Publication number
CN206210482U
CN206210482U CN201621144335.1U CN201621144335U CN206210482U CN 206210482 U CN206210482 U CN 206210482U CN 201621144335 U CN201621144335 U CN 201621144335U CN 206210482 U CN206210482 U CN 206210482U
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CN
China
Prior art keywords
insulator
pedestal
ball discharge
starting rod
grading ring
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.)
Withdrawn - After Issue
Application number
CN201621144335.1U
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Chinese (zh)
Inventor
李建宇
陈建胜
黄天猛
郭和川
张正晓
高兵
周东鸥
王飞
金逸宸
施赛科
周文龙
潘梦梦
郭康瑞
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 ZHEJIANG YONGJIA POWER SUPPLY Co
State Grid Corp of China SGCC
State Grid Zhejiang Electric Power Co Ltd
Wenzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Original Assignee
STATE GRID ZHEJIANG YONGJIA POWER SUPPLY Co
State Grid Corp of China SGCC
State Grid Zhejiang Electric Power Co Ltd
Wenzhou Power Supply Co of State Grid Zhejiang 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 ZHEJIANG YONGJIA POWER SUPPLY Co, State Grid Corp of China SGCC, State Grid Zhejiang Electric Power Co Ltd, Wenzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd filed Critical STATE GRID ZHEJIANG YONGJIA POWER SUPPLY Co
Priority to CN201621144335.1U priority Critical patent/CN206210482U/en
Application granted granted Critical
Publication of CN206210482U publication Critical patent/CN206210482U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of lightning protection line insulator with pressure and discharging gap function; including insulator body; also include grading ring, starting rod, pedestal and ball discharge; wherein; the grading ring is set on the insulator cap of the insulator body; the starting rod is arranged on the side of the bottom of the insulator body; the bottom of the insulator body is fixedly connected by insulating bar with the pedestal; the pedestal is connected with earth terminal and the ball discharge is arranged on the pedestal, and the ball discharge is set with the starting rod gap.When there is lightning surge; first it is after overvoltage is carried out being uniformly distributed extension flashover path by grading ring on insulator cap; again by the lower curve through the downward metal of starting rod; gap discharge i.e. between ball discharge; the power frequency arc for continuing discharges overvoltage energy to earth terminal; so as to protect insulator and insulated conductor not to receive flashover and damage, it is to avoid insulator and wire are subject to the accident of flashover and broken string (broken stock).

Description

A kind of lightning protection line insulator with pressure and discharging gap function
Technical field
The utility model is related to insulator technology field, more particularly to a kind of lightning protection with pressure and discharging gap function Protection circuit insulator.
Background technology
Electric power overhead type is defeated, distribution line, and different regions are set up in respectively;Overhead type is defeated, distribution line was running Cheng Zhong, during by direct or induction lightening, moist or rainwater when situations such as when occurring, decreasing insulating can cause overvoltage, Its overvoltage value is very high, can form the discharge fault of insulation breakdown;One be insulation be subject to destruction while, circuit head end Circuit breaker trip;Two is the electric discharge of breakdown occur in insulation, and the part of conductor also occurs that hot melten type melts failure, its insulation Sub and breakdown gold utensil has the failure of successive damage.
Power overhead network is typically made up of bar (tower), wire, insulator, wherein:One end of insulator is fixed on bar On (tower), other end support, fixed wire.Insulator plays two basic roles in electric power overhead molded line road, that is, support, consolidate Wire and electrical body are determined with ground connection isolated insulation.In normal working conditions, insulator can play support, fixed wire and band Electric body and the effect for being grounded isolated insulation, but when there is thunderbolt, operation or Frequency Transient Overvoltage, defeated, distribution line is general Tripping operation property failure occurs, it is also possible to because electric discharge causes insulator surface flashover and caused by decreasing insulating or the broken stock of broken string Accident.
Therefore, a kind of lightning protection line insulator with pressure and discharging gap function how is provided, to avoid absolutely Edge and wire are subject to the accident of flashover and broken string, are current those skilled in the art technical problems urgently to be resolved hurrily.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of lightning protection with pressure and discharging gap function Line insulator, to avoid insulator and wire from being subject to the accident of flashover and broken string.
In order to achieve the above object, the utility model provides following technical scheme:
A kind of lightning protection line insulator with pressure and discharging gap function, including insulator body, also include Grading ring, starting rod, pedestal and ball discharge, wherein, the grading ring is set on the insulator cap of the insulator body, described Starting rod is arranged on the side of the bottom of the insulator body, and the bottom of the insulator body passes through insulating bar and the base Seat be fixedly connected, the pedestal is connected with earth terminal and the ball discharge is arranged on the pedestal, the ball discharge with it is described Starting rod gap is set.
Preferably, above-mentioned grading ring is outer even formula grading ring.
Preferably, metallic channel and upper holder block are provided with above-mentioned insulator body, wire is passed through from the metallic channel, institute State upper holder block to be fixed by screws in the insulator body, and the wire is fixed in the metallic channel.
Preferably, set fluted on above-mentioned upper holder block, the groove aligns setting with the metallic channel.
The lightning protection line insulator with pressure and discharging gap function that the utility model is provided, including insulator Body, also including grading ring, starting rod, pedestal and ball discharge, wherein, the grading ring is set in the exhausted of the insulator body On edge cap, the starting rod is arranged on the side of the bottom of the insulator body, and the bottom of the insulator body is by exhausted Edge bar is fixedly connected with the pedestal, and the pedestal is connected with earth terminal and the ball discharge is arranged on the pedestal, described Ball discharge is set with the starting rod gap.First it is grading ring on insulator cap by overvoltage when there is lightning surge After carrying out being uniformly distributed extension flashover path, then by the lower curve through the downward metal of starting rod, i.e. gap between ball discharge Electric discharge, the power frequency arc for continuing discharges overvoltage energy to earth terminal, thus protect insulator and insulated conductor by flashover and Damage, it is to avoid insulator and wire are subject to the accident of flashover and broken string (broken stock).
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are these Some embodiments of utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also Other accompanying drawings can be obtained according to these accompanying drawings.
The lightning protection line insulator with pressure and discharging gap function that Fig. 1 is provided for the utility model embodiment Configuration schematic diagram.
In figure 1 above:
Insulator body 1, insulator cap 2, grading ring 3, starting rod 4, pedestal 5, ball discharge 6, upper holder block 7, metallic channel 8.
Specific embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer Accompanying drawing in type embodiment, is clearly and completely described, it is clear that retouched to the technical scheme in the utility model embodiment The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.Based on the implementation in the utility model Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made is belonged to The scope of the utility model protection.
Refer to Fig. 1, the lightning protection with pressure and discharging gap function that Fig. 1 is provided for the utility model embodiment The structural representation of line insulator.
The lightning protection line insulator with pressure and discharging gap function that the utility model embodiment is provided, including Insulator body, also including grading ring 3, starting rod 4, pedestal 5 and ball discharge 6, wherein, grading ring 3 is set in insulator body 1 Insulator cap 2 on, starting rod 4 is arranged on the side of the bottom of insulator body 1, and the bottom of insulator body 1 passes through insulating bar It is fixedly connected with pedestal 5, pedestal 5 is connected with earth terminal and ball discharge 6 is arranged on pedestal 5, ball discharge 6 and the gap of starting rod 4 Set.First it is that the grading ring 3 on insulator cap 2 carries out overvoltage to be uniformly distributed extension flashover when there is lightning surge Behind path, then by the lower curve through the downward metal of starting rod 4, i.e. gap discharge between ball discharge 6, the power frequency arc for continuing Overvoltage energy is discharged to earth terminal, so as to protect insulator and insulated conductor not to receive flashover and damage, it is to avoid insulator and lead Line is subject to the accident of flashover and broken string (broken stock).
Wherein, grading ring 3 is outer even formula grading ring.
In fixed wire, metallic channel 8 and upper holder block 7 are provided with insulator body 1, wire is passed through from metallic channel 8, Upper holder block 7 is fixed by screws in insulator body 1, fixed more to facilitate fast so as to wire is fixed in metallic channel 8 It is prompt.In addition, setting fluted on upper holder block 7, groove aligns setting with metallic channel 8, and groove just forms a confession with metallic channel 8 The through hole that wire is passed through, preferably can fit with wire, improve contact fixed-area.
The lightning protection line insulator with pressure and discharging gap function that the utility model embodiment is provided is performed Technical standard be:
GB311.7—1988《The Insulation Coordination of high-voltage transmission equipment uses directive/guide》;
DL/T804—2002《AC electric power systems metal oxide arrester uses directive/guide》;
DL/T620—1997《The overvoltage protection and Insulation Coordination of alternating-current electric device》;
I grades is plain edition;
II grade is for medium filthy area (retting-flax wastewater 20mm/kV);
III grade is for heavy pollution area (retting-flax wastewater 25mm/kV);
IV grade is for extra heavy filthy area (retting-flax wastewater 31mm/kV).
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or new using this practicality Type.Various modifications to these embodiments will be apparent for those skilled in the art, determine herein The General Principle of justice can in other embodiments be realized in the case where spirit or scope of the present utility model are not departed from.Cause This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein The most wide scope consistent with features of novelty.

Claims (4)

1. a kind of lightning protection line insulator with pressure and discharging gap function, including insulator body, its feature exists In, also including grading ring, starting rod, pedestal and ball discharge, wherein,
The grading ring is set on the insulator cap of the insulator body,
The starting rod is arranged on the side of the bottom of the insulator body,
The bottom of the insulator body is fixedly connected by insulating bar with the pedestal,
The pedestal is connected with earth terminal and the ball discharge is arranged on the pedestal,
The ball discharge is set with the starting rod gap.
2. according to claim 1 with the lightning protection line insulator pressed with discharging gap function, its feature exists In the grading ring is outer even formula grading ring.
3. according to claim 1 with the lightning protection line insulator pressed with discharging gap function, its feature exists In, metallic channel and upper holder block are provided with the insulator body, wire is passed through from the metallic channel, and the upper holder block passes through Screw is fixed in the insulator body, and the wire is fixed in the metallic channel.
4. according to claim 3 with the lightning protection line insulator pressed with discharging gap function, its feature exists In, setting fluted on the upper holder block, the groove aligns setting with the metallic channel.
CN201621144335.1U 2016-10-21 2016-10-21 A kind of lightning protection line insulator with pressure and discharging gap function Withdrawn - After Issue CN206210482U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621144335.1U CN206210482U (en) 2016-10-21 2016-10-21 A kind of lightning protection line insulator with pressure and discharging gap function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621144335.1U CN206210482U (en) 2016-10-21 2016-10-21 A kind of lightning protection line insulator with pressure and discharging gap function

Publications (1)

Publication Number Publication Date
CN206210482U true CN206210482U (en) 2017-05-31

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ID=58758446

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621144335.1U Withdrawn - After Issue CN206210482U (en) 2016-10-21 2016-10-21 A kind of lightning protection line insulator with pressure and discharging gap function

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CN (1) CN206210482U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106298106A (en) * 2016-10-21 2017-01-04 国网浙江永嘉县供电公司 A kind of with all pressures and the lightning protection line insulator of discharging gap function
CN110824303A (en) * 2019-10-16 2020-02-21 广西大学 Method for eliminating central direct flashover of span by utilizing advanced discharge

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106298106A (en) * 2016-10-21 2017-01-04 国网浙江永嘉县供电公司 A kind of with all pressures and the lightning protection line insulator of discharging gap function
CN106298106B (en) * 2016-10-21 2019-10-01 国网浙江永嘉县供电公司 A kind of lightning protection line insulator with pressure and discharging gap function
CN110824303A (en) * 2019-10-16 2020-02-21 广西大学 Method for eliminating central direct flashover of span by utilizing advanced discharge
CN110824303B (en) * 2019-10-16 2021-10-01 广西大学 Method for eliminating central direct flashover of span by utilizing advanced discharge

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Granted publication date: 20170531

Effective date of abandoning: 20191001