CN202197102U - Overvoltage protector for circuit fixing gap - Google Patents

Overvoltage protector for circuit fixing gap 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
Authority
CN
China
Prior art keywords
lightning arrester
sparking electrode
discharge
insulation lead
lead wire
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
CN2011203598729U
Other languages
Chinese (zh)
Inventor
杨爱华
陈伟
吴国梁
李长益
杨树林
杨文豪
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.)
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
Original Assignee
NANJING ZIYANG ELECTRIC POWER EQUIPMENT 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 NANJING ZIYANG ELECTRIC POWER EQUIPMENT Co Ltd filed Critical NANJING ZIYANG ELECTRIC POWER EQUIPMENT Co Ltd
Priority to CN2011203598729U priority Critical patent/CN202197102U/en
Application granted granted Critical
Publication of CN202197102U publication Critical patent/CN202197102U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses an overvoltage protector for a circuit fixing gap. The overvoltage protector comprises a lightning arrester with an insulation lead wire. The lightning arrester with the insulation lead wire is connected with a common insulator of a 10kV overhead insulating line, and a line cross arm through an anti-slip installing bracket and is connected with a 10kV insulating lead wire through a puncturing hose clamp; a composite insulator is arranged at the lower part of the lightning arrester with the insulation lead wire; a right discharge electric base is arranged between the lightning arrester with the insulation lead wire and a composite insulator; a right discharge electrode is in bolt connection with the right discharge electrode base; and a left discharge electrode is assembled at the middle part and the lower part of the anti-slip installing bracket. The advantages are that the distance of the discharge gap is fixed without regulation so as to ensure that the lightning stroke discharge performance of the two electrodes is stable. The discharge electrode adopts a taper spherical structure so as to not only ensure the sensibility of acute angle discharge and but also ensure the discharge reliability without being burnt out in a plurality times of discharge; the discharge electrode is made of austenitic stainless steel and has good weather resistance and corrosion protection. The product weight is light, the cost is low, the structure is simple and attractive and the practicability is strong.

Description

Circuit fixed interval (FI) overvoltage protection device
Technical field
The utility model be a kind of circuit fixed interval (FI) overvoltage protection device, belong to overhead transmission line protection field.
Background technology
The insulated overhead line overwhelming majority suffers indirect lightning strike, when the lightning overvoltage flashover, because overvoltage protection device is parallelly connected with line insulator; The high potential that lightning current causes makes the series gap action of overvoltage protection device, has reduced the potential difference of tower arm and lead, guarantees no longer flashover of insulator; Thereby avoided the line tripping power failure; In order to guarantee the operate as normal of overvoltage protection device, the clearance distance between the outer sparking electrode of necessary assurance is in the scope of regulation, and spacer ring of the prior art is processed by spring stainless steel wire integral body; Have following problem in the design: 1. processing is relatively had any problem; 2. because the wind rotation is moving, can not prevent that spacer ring from moving, and the gap between insulator and the spacer ring can not guarantee uniformity.
Summary of the invention
The purpose of the utility model is to overcome the defective of prior art, proposes a kind of fixing circuit fixed interval (FI) overvoltage protection device structure of clearance distance between sparking electrode that satisfies.
The technical solution of the utility model: its structure is to comprise 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; Composite insulator is installed in tape insulation lead lightning arrester bottom; Be 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.
The advantage of the utility model: the discharging gap fixed distance is exempted from adjustment, guarantees two electrode lightning discharge stable performances.Because sparking electrode adopts the circular cone spherical structure, the sensitiveness that can guarantee the acute angle discharge can guarantee reliability and the multiple discharge not burning of discharging, sparking electrode employing austenitic stainless steel material, good weatherability, anticorrosion again.This product weight is light, simple in structure, attractive in appearance, practical, easy for installation, non-maintaining.
Description of drawings
Accompanying drawing 1 is the structural representation of circuit fixed interval (FI) overvoltage protection device.
Among the figure 1 is 10kV insulated overhead line customary insulation (PS-15/3N), the 2nd, and circuit cross-arm, the 3rd, anti-slip mounting bracket; The 4th, left sparking electrode, the 5th, tape insulation lead lightning arrester, the 6th, 10kV suspended insulated guide wire; The 7th, puncture larynx hoop, the 8th, right sparking electrode, the 9th, mounting bracket location; The 10th, right sparking electrode base, the 11st, composite insulator.
Embodiment
Contrast accompanying drawing 1; Its structure is a tape insulation lead lightning arrester 5; Connect with 10kV insulated overhead line customary insulation 1, circuit cross-arm 2 through anti-slip mounting bracket 3; Tape insulation lead lightning arrester 5 connects with 10kV insulated conductor 6 through puncture larynx hoop 7, and composite insulator 11 is installed in tape insulation lead lightning arrester 5 bottoms, is equiped with right sparking electrode base 10 between tape insulation lead lightning arrester 5 and the composite insulator 11; Right sparking electrode 8 and right sparking electrode base 10 Bolt Connection are installed left sparking electrode 4 in anti-slip support 3 middle and lower parts.
Installing and locating 9 between composite insulator 11 and the anti-slip mounting bracket 3.
Anti-slip mounting bracket 3 is installed in composite insulator 11 lower ends.
Horizontal range between left side sparking electrode 4 and right sparking electrode 8 centers is 30~70mm.
The electrode of left side sparking electrode 4 and right sparking electrode 8 is the circular cone spherical structure.
The operating state of circuit fixed interval (FI) overvoltage protection device: when the Lightning Over-voltage flashover; Overvoltage energy on the 10kV insulated conductor 6 is transmitted to tape insulation lead lightning arrester 5 through puncture larynx hoop 7; At this moment; Zinc oxide resistance sheet conducting in the tape insulation lead lightning arrester 5; Because tape insulation lead lightning arrester 5 internal oxidation zinc resistor discs are connected with right sparking electrode 8 equipotentials, thereby impel the air gap between left sparking electrode 4 and the right sparking electrode 8 to be punctured by the overvoltage energy, form " point discharge " phenomenon.
When circuit normally moves; Zinc oxide resistance sheet is high-impedance state in the tape insulation lead lightning arrester 5; Not conducting just; And the air gap between left sparking electrode 4 and the right sparking electrode 8 at interval, and this moment, circuit fixed interval (FI) overvoltage protection device did not bear power-frequency voltage, did not influence the normal operating condition of circuit.

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 Overvoltage protector for circuit fixing gap Expired - Fee Related CN202197102U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011203598729U CN202197102U (en) 2011-09-23 2011-09-23 Overvoltage protector for circuit fixing gap

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011203598729U CN202197102U (en) 2011-09-23 2011-09-23 Overvoltage protector for circuit fixing gap

Publications (1)

Publication Number Publication Date
CN202197102U true CN202197102U (en) 2012-04-18

Family

ID=45952001

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011203598729U Expired - Fee Related CN202197102U (en) 2011-09-23 2011-09-23 Overvoltage protector for circuit fixing gap

Country Status (1)

Country Link
CN (1) CN202197102U (en)

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 The anti-lightning strike broken string of 10kV insulated conductor determines method with protective device and mounting 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 The anti-lightning strike broken string of 10kV insulated conductor determines method with protective device and mounting 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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Legal Events

Date Code Title Description
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
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120418

Termination date: 20200923