CN202871420U - +/-400kV direct current line 160kN single connection V type suspension insulator string - Google Patents

+/-400kV direct current line 160kN single connection V type suspension insulator string Download PDF

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Publication number
CN202871420U
CN202871420U CN2012201521820U CN201220152182U CN202871420U CN 202871420 U CN202871420 U CN 202871420U CN 2012201521820 U CN2012201521820 U CN 2012201521820U CN 201220152182 U CN201220152182 U CN 201220152182U CN 202871420 U CN202871420 U CN 202871420U
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CN
China
Prior art keywords
suspension insulator
type
insulator
suspension
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.)
Expired - Lifetime
Application number
CN2012201521820U
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Chinese (zh)
Inventor
张小力
周刚
葛秦岭
孙菊海
王红宣
张勇
和勇
张道维
郭先弼
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.)
DC CONSTRUCTION BRANCH STATE GRID CORP OF CHINA
Shaanxi Electric Power Design Institute
Northwest Electric Power Design Institute of China Power Engineering Consulting Group
Southwest Electric Power Design Institute Co Ltd of China Power Engineering Consulting Group
China Power Engineering Consultant Group Central Southern China Electric Power Design Institute Corp
Original Assignee
DC CONSTRUCTION BRANCH STATE GRID CORP OF CHINA
Shaanxi Electric Power Design Institute
Northwest Electric Power Design Institute of China Power Engineering Consulting Group
Southwest Electric Power Design Institute Co Ltd of China Power Engineering Consulting Group
China Power Engineering Consultant Group Central Southern China Electric Power Design Institute Corp
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Application filed by DC CONSTRUCTION BRANCH STATE GRID CORP OF CHINA, Shaanxi Electric Power Design Institute, Northwest Electric Power Design Institute of China Power Engineering Consulting Group, Southwest Electric Power Design Institute Co Ltd of China Power Engineering Consulting Group, China Power Engineering Consultant Group Central Southern China Electric Power Design Institute Corp filed Critical DC CONSTRUCTION BRANCH STATE GRID CORP OF CHINA
Priority to CN2012201521820U priority Critical patent/CN202871420U/en
Application granted granted Critical
Publication of CN202871420U publication Critical patent/CN202871420U/en
Anticipated expiration legal-status Critical
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Abstract

The utility model discloses a +/-400kV direct current line 160kN single connection V type suspension insulator string which comprises a suspension point fitting, a connection fitting, a composite insulator string, an equalizing ring and a suspension wire clamp. The suspension point fitting is at the top of the suspension insulator string and is used for being connected with a tower crossarm. The equalizing ring is located at the lower middle part of the suspension insulator string and is used for equalizing the surface voltage of the insulator string. The suspension wire clamp is located at the lower part of the suspension insulator string and is used for suspending a transmission wire. The insulators of the 160kN single connection V type suspension insulator string are composite insulators and are connected in the form of ring or ring 0 degree. The assembly type of the 160kN single connection V type suspension insulator string is the V string type. According to the embodiment of the utility model, the requirements of a +/-400kV direct current transmission line are met.

Description

A kind of ± 400kV DC line 160kN simply connected V-type suspension insulator
Technical field
The utility model relates to the High-Voltage Insulation field, particularly relates to a kind of ± 400kV DC line 160kN simply connected V-type suspension insulator.
Background technology
Before this ± and 500kV is the minimum voltage grade of China's direct current high tension transmission circuit, for picture Golmud~Lhasa work transmission line, because the load of Tibet Power Grid is less, employing ± 500kV economy is not good.In order to carry out the strategic objective of the Party Central Committee, State Council's enforcement " development of the West Regions ", alleviate the recent short of electricity situation of electrical network in the Tibetan, satisfy Tibet at a specified future date social economy to the requirement of electric power development, taking into account simultaneously economic feasibility, China is successfully completed ± the developing of 400kV HVDC Transmission Technology.
± 400kV DC power transmission line load less, insulator string is also different simultaneously, can not indiscriminately imitate the line insulator string of existing other electric pressure.Therefore, design ± 400kV DC power transmission line 160kN simply connected V-type suspension insulator is the technical problem that those skilled in the art are badly in need of solving.
The utility model content
Technical problem to be solved in the utility model provides a kind of ± 400kV DC power transmission line 160kN simply connected V-type suspension insulator can satisfy ± requirement of 400kV DC power transmission line.
For achieving the above object, the utility model provides a kind of ± 400kV DC power transmission line 160kN simply connected V-type suspension insulator, described suspension insulator comprise the hitch point gold utensil, connect gold utensil, composite insulator string, grading ring and suspension clamp; Wherein,
Described hitch point gold utensil is arranged on described suspension insulator top, is used for being connected with the body of the tower cross-arm; Described grading ring is positioned at described suspension insulator middle and lower part, is used for improving voltage distribution on the insulator string, can make insulator avoid flash burn; Described suspension clamp is positioned at described suspension insulator bottom, is used for hanging transmission pressure;
Preferably, the insulator of described suspension insulator adopts composite insulator, and type of attachment adopts ring, 0 ° of connection of ring.
Preferably, the assembly type of described suspension insulator adopts V serial type formula.
Preferably, the wire hitch point of described suspension insulator adopts LT trunnion hanging panel gold utensil to be connected with the body of the tower cross-arm.
Preferably, the hanging conductor clamp of described suspension insulator adopts the anti-corona suspension clamp of handbag type.
Preferably, the material of the connection gold utensil of described suspension insulator is: container slab, structural alloy steel, carbon constructional quality steel, austenitic stainless steel, aluminum or aluminum alloy.
Preferably, the connection gold utensil of described suspension insulator adopts New Type Material, has good cryogenic property, can guarantee the safe operation of engineering.
Compared with prior art, the utlity model has following advantage:
The utility model provides a kind of ± 400kV DC power transmission line 160kN simply connected V-type suspension insulator.In order to prevent that composite insulator from coming off, the connected mode of insulator string adopts the ring ring to connect; In order to reduce the circuit width of corridor, alleviate environmental disruption, the assembly type of insulator string adopts V serial type formula; For satisfy height above sea level more than 3500 meters regional hvdc transmission line press all that the specific (special) requirements of shielding, the grading ring of insulator string and shading ring have been carried out multiplely all pressing, the corona experiment of Shielding plan; The connection gold utensil of suspension insulator adopts special substance, has good cryogenic property, can guarantee the safe operation of engineering.
Description of drawings
Fig. 1 is of the present utility model ± 400kV DC power transmission line 160kN simply connected V-type suspension insulator figure.
Embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
With reference to Fig. 1, be of the present utility model ± 400kV DC power transmission line 160kN simply connected V-type suspension insulator figure.
Described 160kN simply connected V-type suspension insulator comprises: hardware 1, connection gold utensil 2, composite insulator 5, grading ring 6 and suspension clamp 8.
Described hardware 1 is arranged on described suspension insulator top, adopts the superior LT trunnion hanging panel gold utensil of stress performance, is used for being connected with the body of the tower cross-arm.
Described connection gold utensil 2 is positioned at the middle part of described suspension insulator, is used for the connection between hardware, composite insulator, the suspension clamp.Connect gold utensil and adopt New Type Material, have good cryogenic property.
Described composite insulator 5 is positioned at the middle part of described suspension insulator.The insulator of described 160kN simply connected V-type suspension insulator adopts composite insulator, have excellent resistant and dodge ability, composite insulator adopts ring, 0 ° of connection form of ring to replace a ball bowl connecting structure, can fundamentally solve the wire composite insulator V-type string bulb problem that comes off.
Described grading ring 6 is arranged between composite insulator and the suspension clamp, is used for improving voltage distribution on the insulator string, can make insulator avoid flash burn.
Described equal suspension clamp 8 is used for hanging both sides phase transmission pressure, adopts handbag type, has anti-corona performance.
Preferably, the assembly type of described suspension insulator adopts V serial type formula, can reduce tower weight on the one hand, can reduce the circuit width of corridor on the other hand, alleviates environmental disruption.
Preferably, the grading ring of described suspension insulator and shading ring have carried out multiplely all pressing, the corona experiment of Shielding plan, filled up height above sea level more than 3500 meters regional hvdc transmission line all press the blank of Shielding plan.
More than provided by the utility model ± 400kV DC power transmission line 160kN simply connected V-type suspension insulator is described in detail, used specific case herein principle of the present utility model and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.

Claims (5)

1. one kind ± 400kV DC line 160kN simply connected V-type suspension insulator is characterized in that, described 160kN simply connected V-type suspension insulator comprises the hitch point gold utensil, connects gold utensil, composite insulator string, grading ring and suspension clamp; Wherein,
Described hitch point gold utensil is used for being connected with the body of the tower cross-arm at the suspension insulator top; Described grading ring is positioned at the suspension insulator middle and lower part, is used for uniform insulation substring surface voltage; Described suspension clamp is positioned at described suspension insulator bottom, is used for hanging transmission pressure;
The insulator of described 160kN simply connected V-type suspension insulator adopts composite insulator, and type of attachment adopts ring, 0 ° of connection of ring; The assembly type of described 160kN simply connected V-type suspension insulator adopts V serial type formula.
2. according to claim 1 ± 400kV DC line 160kN simply connected V-type suspension insulator is characterized in that, the insulator of described suspension insulator adopts composite insulator, and type of attachment adopts ring, 0 ° of connection of ring.
3. according to claim 1 ± 400kV DC line 160kN simply connected V-type suspension insulator is characterized in that, the wire hitch point of described suspension insulator adopts LT trunnion hanging panel gold utensil to be connected with the body of the tower cross-arm.
4. according to claim 1 ± 400kV DC line 160kN simply connected V-type suspension insulator is characterized in that, the hanging conductor clamp of described suspension insulator adopts the anti-corona suspension clamp of handbag type.
5. according to claim 1 ± 400kV DC line 160kN simply connected V-type suspension insulator, it is characterized in that the material of the connection gold utensil of described suspension insulator is: container slab, structural alloy steel, carbon constructional quality steel, austenitic stainless steel, aluminum or aluminum alloy.
CN2012201521820U 2012-04-12 2012-04-12 +/-400kV direct current line 160kN single connection V type suspension insulator string Expired - Lifetime CN202871420U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012201521820U CN202871420U (en) 2012-04-12 2012-04-12 +/-400kV direct current line 160kN single connection V type suspension insulator string

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012201521820U CN202871420U (en) 2012-04-12 2012-04-12 +/-400kV direct current line 160kN single connection V type suspension insulator string

Publications (1)

Publication Number Publication Date
CN202871420U true CN202871420U (en) 2013-04-10

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ID=48038116

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012201521820U Expired - Lifetime CN202871420U (en) 2012-04-12 2012-04-12 +/-400kV direct current line 160kN single connection V type suspension insulator string

Country Status (1)

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CN (1) CN202871420U (en)

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: NORTHWEST ELECTRIC POWER DESIGN INSTITUTE OF CHINA

Free format text: FORMER NAME: NORTHWEST ELECTRIC POWER DESIGN INSTITUTE, CHINA POWER ENGINEERING CONSULTING GROUP CORPORATION

CP01 Change in the name or title of a patent holder

Address after: 22 No. 710075, unity South Road, hi tech Industrial Development Zone, Shaanxi, Xi'an

Patentee after: NORTHWEST ELECTRIC POWER DESIGN INSTITUTE CO., LTD. OF CHINA POWER ENGINEERING CONSULTING GROUP

Patentee after: DC Construction Branch, State Grid Corp. of China

Patentee after: China Power Engineering Consulting Group Southwest Electric Power Design Institute Co., Ltd.

Patentee after: Co., Ltd of Central Southern China Electric Power Design Institute, China Power Engineering Consulting Group Corporation

Patentee after: Shaanxi Electric Power Design Institute

Address before: 22 No. 710075, unity South Road, hi tech Industrial Development Zone, Shaanxi, Xi'an

Patentee before: Northwest Electric Power Design Institute, China Power Engineering Consulting Group Corporation

Patentee before: DC Construction Branch, State Grid Corp. of China

Patentee before: Southwest Electric Power Design Institute of China Power Engineering Consulting Group Corporation

Patentee before: Central Southern China Electric Power Design Institute, China Power Engineering Consulting Group Cor

Patentee before: Shaanxi Electric Power Design Institute

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20130410