CN106298106B - 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
CN106298106B
CN106298106B CN201610919327.8A CN201610919327A CN106298106B CN 106298106 B CN106298106 B CN 106298106B CN 201610919327 A CN201610919327 A CN 201610919327A CN 106298106 B CN106298106 B CN 106298106B
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CN
China
Prior art keywords
insulator
pedestal
starting rod
discharge ball
grading ring
Prior art date
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Active
Application number
CN201610919327.8A
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Chinese (zh)
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CN106298106A (en
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
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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 CN201610919327.8A priority Critical patent/CN106298106B/en
Publication of CN106298106A publication Critical patent/CN106298106A/en
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    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00Insulators or insulating bodies characterised by their form
    • H01B17/14Supporting insulators
    • H01B17/145Insulators, poles, handles, or the like in electric fences
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00Insulators or insulating bodies characterised by their form
    • H01B17/42Means for obtaining improved distribution of voltage; Protection against arc discharges
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00Insulators or insulating bodies characterised by their form
    • H01B17/42Means for obtaining improved distribution of voltage; Protection against arc discharges
    • H01B17/46Means for providing an external arc-discharge path

Abstract

The invention discloses a kind of with the lightning protection line insulator pressed with discharging gap function; including insulator body; it further include grading ring, starting rod, pedestal and discharge ball; wherein; the grading ring is set on the insulator cap of the insulator body; the side of the bottom of the insulator body is arranged in the starting rod; the bottom of the insulator body is fixedly connected by insulating bar with the pedestal; the pedestal is connect with ground terminal and the discharge ball is arranged on the pedestal, the discharge ball and the starting rod gap setting.When lightning surge occurs; it is after overvoltage be uniformly distributed and extends flashover path by grading ring on insulator cap first; again by the lower curve through the downward metal of starting rod; gap discharge i.e. between discharge ball; the power frequency arc of connecting discharges overvoltage energy to ground terminal; to protect insulator and insulated conductor by flashover and damage, not to avoid insulator and conducting wire by 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 present invention relates to insulator technology field more particularly to a kind of lightning protections with pressure and discharging gap function Line insulator.
Background technique
Electric power overhead type is defeated, distribution line, is set up in different regions respectively;Overhead type is defeated, distribution line was being run Cheng Zhong, when by direct or induction lightening, when humidity or when rainwater situations such as occur, decreasing insulating can cause overvoltage, Its overvoltage value is very high, will form the discharge fault of insulation breakdown;First is that while insulation is by destroying, route head end Circuit breaker trip;Second is that there is the electric discharge of breakdown in insulation, the part of conductor also will appear hot melten type fusing failure, insulation Sub and breakdown fitting has the failure damaged in succession.
Power overhead network is generally made of bar (tower), conducting wire, insulator, in which: one end of insulator is fixed on bar On (tower), other end support, fixed conducting wire.Insulator plays two basic roles in electric power overhead molded line road, that is, supports, is solid Determine conducting wire and electrical body and ground connection isolated insulation.In normal working conditions, insulator can play support, fixed conducting wire and band The effect of electric body and ground connection isolated insulation, but lightning stroke, operation is occurring or when Frequency Transient Overvoltage, it is defeated, distribution line is general It will appear tripping property failure, it is also possible to cause decreasing insulating or the broken stock that breaks because electric discharge causes insulator surface flashover Accident.
Therefore, a kind of lightning protection line insulator with pressure and discharging gap function how is provided, to avoid exhausted The accident of edge and conducting wire by flashover and broken string is current those skilled in the art technical problem urgently to be resolved.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of with the lightning protection route pressed with discharging gap function Insulator, the accident to avoid insulator and conducting wire by flashover and broken string.
In order to achieve the above object, the invention provides the following technical scheme:
A kind of lightning protection line insulator with pressure and discharging gap function, including insulator body further include Grading ring, starting rod, pedestal and discharge ball, wherein the grading ring is set on the insulator cap of the insulator body, described The side of the bottom of the insulator body is arranged in starting rod, and the bottom of the insulator body passes through insulating bar and the base Seat be fixedly connected, the pedestal connect with ground terminal and the discharge ball setting on the pedestal, the discharge ball with it is described Starting rod gap setting.
Preferably, above-mentioned grading ring is outer even formula grading ring.
Preferably, metallic channel and upper holder block are provided in above-mentioned insulator body, conducting wire is passed through from the metallic channel, institute It states upper holder block to be fixed by screws in the insulator body, and the conducting wire is fixed in the metallic channel.
Preferably, it is arranged fluted on above-mentioned upper holder block, the groove and the metallic channel are to positive setting.
Lightning protection line insulator provided by the invention with pressure and discharging gap function, including insulator sheet Body further includes grading ring, starting rod, pedestal and discharge ball, wherein the grading ring is set in the insulation of the insulator body On cap, the side of the bottom of the insulator body is arranged in the starting rod, and the bottom of the insulator body passes through insulation Bar is fixedly connected with the pedestal, and the pedestal is connect with ground terminal and the discharge ball is arranged on the pedestal, described to put Electric ball and the starting rod gap setting.When lightning surge occurs, be grading ring on insulator cap first by overvoltage into After row is uniformly distributed extension flashover path, then by the lower curve through the downward metal of starting rod, i.e. gap between discharge ball is put The power frequency arc of electricity, connecting discharges overvoltage energy to ground terminal, to protect insulator and insulated conductor not by flashover and damage Wound avoids insulator and conducting wire by the accident of flashover and broken string (broken stock).
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention Some embodiments for those of ordinary skill in the art without creative efforts, can also basis These attached drawings obtain other attached drawings.
Fig. 1 is provided in an embodiment of the present invention quick-fried with the lightning protection line insulator of discharging gap function with pressing Fried structural schematic diagram.
In figure 1 above:
Insulator body 1, insulator cap 2, grading ring 3, starting rod 4, pedestal 5, discharge ball 6, upper holder block 7, metallic channel 8.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Referring to FIG. 1, Fig. 1 is provided in an embodiment of the present invention with the lightning protection route pressed with discharging gap function The structural schematic diagram of insulator.
Lightning protection line insulator provided in an embodiment of the present invention with pressure and discharging gap function, including insulation Sub- ontology further includes grading ring 3, starting rod 4, pedestal 5 and discharge ball 6, wherein grading ring 3 is set in the exhausted of insulator body 1 On edge cap 2, the side of the bottom of insulator body 1 is arranged in starting rod 4, and the bottom of insulator body 1 passes through insulating bar and base Seat 5 is fixedly connected, and pedestal 5 is connect with ground terminal and discharge ball 6 is arranged on pedestal 5, discharge ball 6 and 4 gap setting of starting rod. It is that the grading ring 3 on insulator cap 2 carries out overvoltage to be uniformly distributed extension flashover path first when lightning surge occurs Afterwards, then by the lower curve through the downward metal of starting rod 4, i.e. gap discharge between discharge ball 6, the power frequency arc of connecting is to connecing Ground terminal discharges overvoltage energy, to protect insulator and insulated conductor not by flashover and damage, avoid insulator and conducting wire by To the accident of flashover and broken string (broken stock).
Wherein, grading ring 3 is outer even formula grading ring.
In fixed conducting wire, it is provided with metallic channel 8 and upper holder block 7 in insulator body 1, conducting wire is passed through from metallic channel 8, Upper holder block 7 is fixed by screws in insulator body 1, so that conducting wire is fixed in metallic channel 8, it is fixed more convenient fast It is prompt.In addition, being arranged fluted on upper holder block 7, groove and metallic channel 8 just form a confession to positive setting, groove and metallic channel 8 The through-hole that conducting wire passes through can be preferably bonded with conducting wire, improve contact fixed-area.
The skill provided in an embodiment of the present invention executed with the lightning protection line insulator of pressure and discharging gap function Art standard are as follows:
GB311.7-1988 " 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 " overvoltage protection and Insulation Coordination of alternating-current electric device ";
I grade is plain edition;
II grade is for medium filthy area (retting-flax wastewater 20mm/kV);
III grade is regional (retting-flax wastewater 25mm/kV) for heavy pollution;
IV grade is for extra heavy filthy area (retting-flax wastewater 31mm/kV).
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one The widest scope of cause.

Claims (2)

1. a kind of exist with the lightning protection line insulator pressed with discharging gap function, including insulator body, feature In further including grading ring, starting rod, pedestal and discharge ball, wherein
The grading ring is set on the insulator cap of the insulator body,
The side of the bottom of the insulator body is arranged in the starting rod,
The bottom of the insulator body is fixedly connected by insulating bar with the pedestal,
The pedestal is connect with ground terminal and the discharge ball is arranged on the pedestal,
The discharge ball and the starting rod gap setting,
Metallic channel and upper holder block are provided in the insulator body, conducting wire is passed through from the metallic channel, and the upper holder block is logical It crosses screw to be fixed in the insulator body, and the conducting wire is fixed in the metallic channel.
2. according to claim 1 with the lightning protection line insulator pressed with discharging gap function, feature exists In being arranged fluted on the upper holder block, the groove and the metallic channel are to positive setting.
CN201610919327.8A 2016-10-21 2016-10-21 A kind of lightning protection line insulator with pressure and discharging gap function Active CN106298106B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610919327.8A CN106298106B (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
CN201610919327.8A CN106298106B (en) 2016-10-21 2016-10-21 A kind of lightning protection line insulator with pressure and discharging gap function

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CN106298106A CN106298106A (en) 2017-01-04
CN106298106B true CN106298106B (en) 2019-10-01

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106782937A (en) * 2017-01-20 2017-05-31 刘进生 Lightning protection porcelain bottle insulators with safety guard
CN106782938A (en) * 2017-01-20 2017-05-31 刘进生 Porcelain bottle insulators with safety guard and electricity testing grounding ring

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103337314A (en) * 2013-06-07 2013-10-02 国家电网公司 Discharge gap device with voltage-equalizing rings
CN206210482U (en) * 2016-10-21 2017-05-31 国网浙江永嘉县供电公司 A kind of lightning protection line insulator with pressure and discharging gap function

Family Cites Families (6)

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GB566871A (en) * 1943-05-12 1945-01-17 Colin Henry William Clark Improvements in or relating to insulators for high tension electrical transmission systems
CN102157253B (en) * 2011-01-26 2012-06-20 吉林市能兴电力设备有限公司 Outer-gap lightning arrester
CN203659557U (en) * 2013-12-27 2014-06-18 山东迅实电气有限公司 Line type fixed clearance metal oxide arrester
CN104332935B (en) * 2014-11-04 2016-08-24 广东电网有限责任公司中山供电局 The 10kV distribution line lightning protection device of energy charged for replacement
CN204288989U (en) * 2014-12-27 2015-04-22 中国西电电气股份有限公司 A kind of extra-high-voltage alternating current gapless metal-oxide lighting arrester
CN204732237U (en) * 2015-07-01 2015-10-28 国家电网公司 For the lightning-protection ice needle type composite insulator of 10kV transmission line

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103337314A (en) * 2013-06-07 2013-10-02 国家电网公司 Discharge gap device with voltage-equalizing rings
CN206210482U (en) * 2016-10-21 2017-05-31 国网浙江永嘉县供电公司 A kind of lightning protection line insulator with pressure and discharging gap function

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