CN202197102U - Line Fixed Gap Overvoltage Protector - Google Patents

Line Fixed Gap Overvoltage Protector Download PDF

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Publication number
CN202197102U
CN202197102U CN2011203598729U CN201120359872U CN202197102U CN 202197102 U CN202197102 U CN 202197102U CN 2011203598729 U CN2011203598729 U CN 2011203598729U CN 201120359872 U CN201120359872 U CN 201120359872U CN 202197102 U CN202197102 U CN 202197102U
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China
Prior art keywords
discharge electrode
insulated wire
sparking electrode
composite insulator
arrester
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Expired - Fee Related
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CN2011203598729U
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Chinese (zh)
Inventor
杨爱华
陈伟
吴国梁
李长益
杨树林
杨文豪
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NANJING ZIFENG ELECTRIC POWER EQUIPMENT CO Ltd
State Grid Corp of China SGCC
State Grid Jiangsu Electric Power Co Ltd
Nanjing Power Supply Co of Jiangsu Electric Power Co
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Nanjing Ziyang Electric Power Equipment Co ltd
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Abstract

本实用新型是线路固定间隙过电压保护器,包括带绝缘导线避雷器,带绝缘导线避雷器通过防滑落安装支架与10kV架空绝缘线路常用绝缘子、线路横担联接,带绝缘导线避雷器通过穿刺喉箍与10kV绝缘导线联接,在带绝缘导线避雷器下部安装复合绝缘子,带绝缘导线避雷器和复合绝缘子之间装设有右放电电极底座,右放电电极与右放电电极底座螺栓联接,在防滑落支架中下部装设左放电电极。优点:放电间隙距离固定免调整,保证两电极雷击放电性能稳定。放电电极采用圆锥球形结构,既保证锐角放电的敏感性又能保证放电的可靠性和多次放电不烧损,放电电极采用奥氏体不锈钢材料,耐候性好、能防腐蚀。产品重量轻、低成本、结构简单、美观、实用性强。

The utility model is a line fixed gap overvoltage protector, including an insulated wire arrester, the insulated wire arrester is connected with the commonly used insulators and line crossarms of 10kV overhead insulated lines through an anti-slip mounting bracket, the insulated wire arrester is connected with the 10kV insulated wire through a puncture throat clamp, a composite insulator is installed at the lower part of the insulated wire arrester, a right discharge electrode base is installed between the insulated wire arrester and the composite insulator, the right discharge electrode is bolted to the right discharge electrode base, and a left discharge electrode is installed at the lower part of the anti-slip bracket. Advantages: The discharge gap distance is fixed and adjustment-free, ensuring the stable lightning discharge performance of the two electrodes. The discharge electrode adopts a conical spherical structure, which not only ensures the sensitivity of sharp-angle discharge, but also ensures the reliability of discharge and no burning after multiple discharges. The discharge electrode adopts austenitic stainless steel material, which has good weather resistance and corrosion resistance. The product is light in weight, low cost, simple in structure, beautiful and practical.

Description

线路固定间隙过电压保护器Line Fixed Gap Overvoltage Protector

技术领域 technical field

本实用新型的是一种线路固定间隙过电压保护器,属于架空线路保护领域。 The utility model relates to a line fixed gap overvoltage protector, which belongs to the field of overhead line protection.

背景技术 Background technique

架空绝缘线路绝大部分遭受感应雷击,当雷电过电压闪络时,由于过电压保护器与线路绝缘子并联,雷电流引起的高电位使过电压保护器的串联间隙动作,降低了塔臂与导线的电位差,保证绝缘子不再闪络,从而避免了线路跳闸停电,为了能保证过电压保护器的正常工作,必须保证外放电电极间的间隙距离在规定的范围内,现有技术中的间隙环由弹簧不锈钢丝整体加工而成,设计上存在以下问题:1.加工比较有困难,2.由于风摆转动,不能防止间隙环移动,而且绝缘子与间隙环之间的间隙不能保证均匀一致。 Most of the overhead insulated lines are struck by induction lightning. When the lightning overvoltage flashes over, because the overvoltage protector is connected in parallel with the line insulator, the high potential caused by the lightning current will make the series gap of the overvoltage protector act, reducing the load on the tower arm and the conductor. Potential difference, to ensure that the insulator no longer flashover, thereby avoiding the line trip power failure, in order to ensure the normal operation of the overvoltage protector, it is necessary to ensure that the gap distance between the external discharge electrodes is within the specified range, the gap in the prior art The ring is integrally processed by spring stainless steel wire. There are the following problems in design: 1. The processing is relatively difficult. 2. Due to the rotation of the wind swing, the movement of the gap ring cannot be prevented, and the gap between the insulator and the gap ring cannot be guaranteed to be uniform.

发明内容 Contents of the invention

本实用新型的目的在于克服现有技术的缺陷,提出一种可满足放电电极间间隙距离固定的线路固定间隙过电压保护器结构。 The purpose of the utility model is to overcome the defects of the prior art, and propose a fixed-gap overvoltage protector structure for lines that can satisfy the fixed gap distance between discharge electrodes.

 本实用新型的技术解决方案:其结构是包括带绝缘导线避雷器,带绝缘导线避雷器通过防滑落安装支架与10kV架空绝缘线路常用绝缘子、线路横担联接,带绝缘导线避雷器通过穿刺喉箍与10kV绝缘导线联接,在带绝缘导线避雷器下部安装复合绝缘子,带绝缘导线避雷器和复合绝缘子之间装设有右放电电极底座,右放电电极与右放电电极底座螺栓联接,在防滑落支架中下部装设左放电电极。 The technical solution of the utility model: its structure includes an insulated wire arrester, the insulated wire arrester is connected with the common insulator and line cross arm of the 10kV overhead insulated line through the anti-slip mounting bracket, and the insulated wire arrester is insulated from the 10kV through the puncture throat hoop Wire connection, a composite insulator is installed at the lower part of the arrester with insulated wires, a right discharge electrode base is installed between the arrester with insulated wires and the composite insulator, the right discharge electrode is connected with the right discharge electrode base by bolts, and the left discharge electrode.

本实用新型的优点:放电间隙距离固定免调整,保证两电极雷击放电性能稳定。由于放电电极采用圆锥球形结构,既能保证锐角放电的敏感性又能够保证放电的可靠性和多次放电不烧损,放电电极采用奥氏体不锈钢材料,耐候性好、防腐蚀。该产品重量轻、结构简单、美观、实用性强、安装方便、免维护。 The utility model has the advantages that the discharge gap distance is fixed without adjustment, and the lightning discharge performance of the two electrodes is guaranteed to be stable. Since the discharge electrode adopts a conical spherical structure, it can not only ensure the sensitivity of acute-angle discharge, but also ensure the reliability of discharge and not burn out after multiple discharges. The discharge electrode is made of austenitic stainless steel, which has good weather resistance and corrosion resistance. The product is light in weight, simple in structure, beautiful in appearance, strong in practicability, convenient in installation and maintenance-free.

附图说明 Description of drawings

附图1是线路固定间隙过电压保护器的结构示意图。 Accompanying drawing 1 is the structure schematic diagram of the line fixed gap overvoltage protector.

图中的1是10kV架空绝缘线路常用绝缘子(PS-15/3N),2是线路横担,3是防滑落安装支架,4是左放电电极, 5是带绝缘导线避雷器,6是10kV架空绝缘导线,7是穿刺喉箍,8是右放电电极, 9是安装支架定位,10是右放电电极底座,11是复合绝缘子。 1 in the figure is a commonly used insulator (PS-15/3N) for 10kV overhead insulated lines, 2 is a line cross arm, 3 is an anti-slip mounting bracket, 4 is a left discharge electrode, 5 is a lightning arrester with insulated wires, and 6 is a 10kV overhead insulation Conductor, 7 is the puncture throat hoop, 8 is the right discharge electrode, 9 is the positioning of the mounting bracket, 10 is the base of the right discharge electrode, and 11 is a composite insulator.

具体实施方式 Detailed ways

 对照附图1,其结构是带绝缘导线避雷器5,通过防滑落安装支架3与10kV架空绝缘线路常用绝缘子1、线路横担2联接,带绝缘导线避雷器5通过穿刺喉箍7与10kV绝缘导线6联接,在带绝缘导线避雷器5下部安装复合绝缘子11,带绝缘导线避雷器5和复合绝缘子11之间装设有右放电电极底座10,右放电电极8与右放电电极底座10螺栓联接,在防滑落支架3中下部装设左放电电极4。 Referring to accompanying drawing 1, its structure is a surge arrester 5 with insulated wires, which is connected with a commonly used insulator 1 and line crossarm 2 for 10kV overhead insulated lines through an anti-slip mounting bracket 3, and the arrester 5 with insulated wires is connected with a 10kV insulated wire 6 through a puncture throat collar 7 To connect, a composite insulator 11 is installed at the lower part of the lightning arrester with insulated wires 5, and a right discharge electrode base 10 is installed between the lightning arrester with insulated wires 5 and the composite insulator 11, and the right discharge electrode 8 is connected with the right discharge electrode base 10 by bolts. The left discharge electrode 4 is installed in the lower part of the bracket 3 .

复合绝缘子11和防滑落安装支架3之间安装定位9。 The positioning 9 is installed between the composite insulator 11 and the anti-slip mounting bracket 3 .

防滑落安装支架3安装在复合绝缘子11下端。 The anti-slip mounting bracket 3 is installed on the lower end of the composite insulator 11 .

左放电电极4和右放电电极8中心之间的水平距离为30~70mm。 The horizontal distance between the centers of the left discharge electrode 4 and the right discharge electrode 8 is 30-70 mm.

 左放电电极4和右放电电极8的电极呈圆锥球形结构。 The electrodes of the left discharge electrode 4 and the right discharge electrode 8 are conical spherical structures.

线路固定间隙过电压保护器的工作状态:在雷击过电压闪络时,10kV绝缘导线6上的过电压能量通过穿刺喉箍7传导到带绝缘导线避雷器5,此时,带绝缘导线避雷器5内氧化锌电阻片导通,由于带绝缘导线避雷器5内部氧化锌电阻片与右放电电极8等电位连接,从而促使左放电电极4和右放电电极8之间的空气间隙被过电压能量所击穿,形成“尖端放电”现象。 The working state of the line fixed gap overvoltage protector: when lightning overvoltage flashover occurs, the overvoltage energy on the 10kV insulated wire 6 is transmitted to the insulated wire arrester 5 through the puncture throat clamp 7. At this time, the insulated wire arrester 5 The zinc oxide resistor is turned on, because the zinc oxide resistor inside the surge arrester 5 with insulated wires is equipotentially connected to the right discharge electrode 8, so that the air gap between the left discharge electrode 4 and the right discharge electrode 8 is broken down by the overvoltage energy , forming a "point discharge" phenomenon.

在线路正常运行时,带绝缘导线避雷器5内氧化锌电阻片呈高阻态,也就是不导通,并且左放电电极4和右放电电极8之间的空气间隙间隔,此时线路固定间隙过电压保护器不承受工频电压,不影响线路的正常运行状态。 When the line is in normal operation, the zinc oxide resistor sheet in the lightning arrester 5 with insulated wires is in a high-resistance state, that is, it is not conducting, and the air gap between the left discharge electrode 4 and the right discharge electrode 8 is spaced. The voltage protector does not withstand power frequency voltage and does not affect the normal operation of the line.

Claims (5)

1. circuit fixed interval (FI) overvoltage protection device; Its characteristic comprises tape insulation lead lightning arrester; Tape insulation lead lightning arrester connects with 10kV insulated overhead line customary insulation, circuit cross-arm through the anti-slip mounting bracket; Tape insulation lead lightning arrester connects with the 10kV insulated conductor through puncture larynx hoop, and composite insulator is installed in tape insulation lead lightning arrester bottom, is equiped with right sparking electrode base between tape insulation lead lightning arrester and the composite insulator; Right sparking electrode connects with right sparking electrode bolt of lower base, installs left sparking electrode in anti-slip support middle and lower part.
2. circuit according to claim 1 fixed interval (FI) overvoltage protection device, it is characterized in that: the anti-slip mounting bracket is installed in the composite insulator lower end.
3. circuit according to claim 1 fixed interval (FI) overvoltage protection device is characterized in that: installing and locating between composite insulator and the anti-slip mounting bracket.
4. circuit according to claim 1 fixed interval (FI) overvoltage protection device is characterized in that the horizontal range between left sparking electrode and the right sparking electrode center is 30~70mm.
5. circuit according to claim 1 fixed interval (FI) overvoltage protection device is characterized in that the electrode of left sparking electrode and right sparking electrode is the circular cone spherical structure.
CN2011203598729U 2011-09-23 2011-09-23 Line Fixed Gap Overvoltage Protector Expired - Fee Related CN202197102U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011203598729U CN202197102U (en) 2011-09-23 2011-09-23 Line Fixed Gap Overvoltage Protector

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Application Number Priority Date Filing Date Title
CN2011203598729U CN202197102U (en) 2011-09-23 2011-09-23 Line Fixed Gap Overvoltage Protector

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104201567A (en) * 2014-09-04 2014-12-10 国家电网公司 Internal insulating device for fixed gap overvoltage protector
CN104201568A (en) * 2014-09-04 2014-12-10 国家电网公司 Fixed gap overvoltage protector
CN109767886A (en) * 2019-03-27 2019-05-17 长沙理工大学 Protection device for 10kV insulated conductor against lightning strike and disconnection and method for determining installation distance

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104201567A (en) * 2014-09-04 2014-12-10 国家电网公司 Internal insulating device for fixed gap overvoltage protector
CN104201568A (en) * 2014-09-04 2014-12-10 国家电网公司 Fixed gap overvoltage protector
CN109767886A (en) * 2019-03-27 2019-05-17 长沙理工大学 Protection device for 10kV insulated conductor against lightning strike and disconnection and method for determining installation distance
CN109767886B (en) * 2019-03-27 2021-01-12 长沙理工大学 10kV insulated conductor lightning protection device for preventing breakage and installation distance determining method

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C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: JIANGSU ELECTRIC POWER COMPANY STATE GRID CORPORAT

Free format text: FORMER OWNER: NANJING ZIYANG ELECTRIC POWER EQUIPMENT CO., LTD.

Effective date: 20140821

Owner name: NANJING POWER SUPPLY CO., JIANGSU PROV. POWER CO.

Free format text: FORMER OWNER: YANG AIHUA

Effective date: 20140821

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

Free format text: CORRECT: ADDRESS; FROM: 210046 NANJING, JIANGSU PROVINCE TO: 210019 NANJING, JIANGSU PROVINCE

TR01 Transfer of patent right

Effective date of registration: 20140821

Address after: Nanjing City, Jiangsu province 210019 Olympic Avenue No. 1

Patentee after: Nanjing Power Supply Co., Jiangsu Prov. Power Co.

Patentee after: Jiangsu Electric Power Company

Patentee after: State Grid Corporation of China

Patentee after: NANJING ZIFENG ELECTRIC POWER EQUIPMENT CO., LTD.

Address before: 210046 No. 58, Heng Jing Road, Nanjing economic and Technological Development Zone, Jiangsu, China

Patentee before: Yang Aihua

Patentee before: Nanjing Ziyang Electric Power Equipment Co., Ltd.

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120418

Termination date: 20200923

CF01 Termination of patent right due to non-payment of annual fee