CN201113419Y - Ultra-high voltage porcelain bushing type lightning arrestor - Google Patents
Ultra-high voltage porcelain bushing type lightning arrestor Download PDFInfo
- Publication number
- CN201113419Y CN201113419Y CN 200720032769 CN200720032769U CN201113419Y CN 201113419 Y CN201113419 Y CN 201113419Y CN 200720032769 CN200720032769 CN 200720032769 CN 200720032769 U CN200720032769 U CN 200720032769U CN 201113419 Y CN201113419 Y CN 201113419Y
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- CN
- China
- Prior art keywords
- arrester
- type lightning
- bushing type
- porcelain bushing
- lightning protector
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C13/00—Resistors not provided for elsewhere
- H01C13/02—Structural combinations of resistors
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Thermistors And Varistors (AREA)
Abstract
The utility model discloses a supervoltage porcelain sleeve type lightning protector, comprising a pillar structure consisting of four sections of lightning protector elements which are connected in series, wherein, the top of the first section of the lightning protector at the upper end of the structure is provided with a pressure equalizing annular shelf, the bottom of the fourth section of the lightning protector at the lower end of the structure is provided with an insulating base. The utility model is characterized in that the inner part of each section of lightning protector has a single pole zinc oxide resistance card series structure and is provided with a parallel capacitor bank. The supervoltage porcelain sleeve type lightning protector is suitable for the transformer of the 750V transformer substation in the high altitude localities and the protector of a high voltage parallel reactor.
Description
Technical field
The present invention relates to a kind of superhigh pressure porcelain bushing type lightning arrester.
Background technology
The ultrahigh voltage power product of 750kV and above electric pressure, supergrid have only the minority developed countries to develop at present and are applicable to superhigh pressure grade electrical network lightning arrester owing to technical sophistication, cost are higher.As renowned companies such as ABB, the GE of states such as Russia, the U.S., Canada, Italy, Japan, Mitsubishi Electric, Russian electroceramics industrial associations, but product separately all has bigger difference on profile and internal structure.And some product can not be applicable to super, the actual needs that extra-high voltage grid is built of China, the 750kV power transmission and transforming equipment protection porcelain bushing type lightning arrester that uses as the high altitude localities.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of transformer and high-voltage shunt reactor protection porcelain coat lightning arrester applicable to the 750kV of the Northwest transformer station.
For reaching above purpose, the utility model takes following technical scheme to be achieved:
A kind of superhigh pressure porcelain bushing type lightning arrester, comprise by four joint unit of an arrester and be composed in series high column structure, be provided with the grading ring frame at this first segment unit of an arrester top, structure upper end, this the 4th joint unit of an arrester bottom, structure lower end is provided with insulator foot, the external insulation of described unit of an arrester is the full skirt insulator, it is characterized in that, be equipped with a columnar resistance sheet in described each joint unit of an arrester, adopt series system to connect.
In the such scheme, described full skirt insulator adopt big umbellule alternately, umbrella band rib structure down; Included shunt capacitor in described every joint unit of an arrester.
The utility model has the advantages that, owing to a columnar resistance sheet only is set in unit of an arrester, thereby the diameter of lightning arrester insulator is reduced, weight saving at each joint; Simultaneously insulator adopt big umbellule alternately, umbrella band rib structure down, make lightning arrester have the dirty performance of good resistant, the lightning arrester (31mm/kV) that adopts this beveled structure insulator has passed through in national insulator lightning arrester inspection center that salt is close to be 0.03mg/cm
2The artificial pollution test, improved durability against pollution in the high altitude localities.Adopt shunt capacitor to force all to press, thereby significantly improved the Potential distribution performance of product, product maximum potential skewness coefficient only is 11%.Chargeability be 85% only, have long useful life.
Description of drawings
Fig. 1 is the shape assumption diagram of the utility model lightning arrester.Among the figure: 1, grading ring; 2, unit of an arrester; 3, mucilage binding flange; 4, backing plate; 5, base; 6, binding post.
Fig. 2 be C among Fig. 1 to cutaway view, be porcelain spare beveled structure figure.Among the figure: 7, umbellule; 8, lug, nib; 9, gamp.
Fig. 3 is the vertical cross section view of unit of an arrester.Among the figure: 10, resistor disc; 11, capacitor.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and concrete fact Example.
As shown in Figure 1, the utility model lightning arrester saves mutually independently by four, and unit of an arrester 2 is composed in series high column structure, every adjacent two joint unit of an arrester 2 connect by mucilage binding flange 3, at first segment unit of an arrester 2 tops, this structure upper end grading ring frame 1 is housed, a terminal block 6 with protected equipment wiring is housed simultaneously; These the 4th joint unit of an arrester 2 bottoms, structure lower end are provided with insulator foot 6, and this insulator foot 6 provides enough insulation for monitor.Be provided with backing plate 4 between the mucilage binding flange 3, and fastening with standard bolt, adjacent two joint unit of an arrester 2 are connected.
As shown in Figure 2, the full skirt of lightning arrester insulator adopts alternately arrangement architecture of gamp 8 and umbellule 7, and gamp 8 and umbellule are equipped with lug, nib 77 times.
As shown in Figure 3, constitute by resistor disc 10, insulating bar, arc tube, burst disk, caulking gum and metallic element etc. in unit of an arrester 2 insulators.A plurality of resistor discs 8 series connection of the inner employing of product are a rod structure.For the further Potential distribution of control lightning arrester, except that outside grading ring 1, the capacitor 11 in parallel with resistor disc 10 is housed also in every joint unit of an arrester 2.Resistor disc 10 adopts D
13.6Ac oxide zinc resistor disc, square wave discharge capacity 2500A.
Claims (3)
1. superhigh pressure porcelain bushing type lightning arrester, comprise by four joint unit of an arrester and be composed in series high column structure, be provided with the grading ring frame at this first segment unit of an arrester top, structure upper end, this the 4th joint unit of an arrester bottom, structure lower end is provided with insulator foot, the external insulation of described unit of an arrester is the full skirt insulator, it is characterized in that, be equipped with a columnar resistance sheet in described each joint unit of an arrester, adopt series system to connect.
2. superhigh pressure porcelain bushing type lightning arrester according to claim 1 is characterized in that, described full skirt insulator adopts the structure that big umbellule replaces, umbrella is with rib down.
3. superhigh pressure porcelain bushing type lightning arrester according to claim 1 and 2 is characterized in that, has included shunt capacitor in described every joint unit of an arrester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720032769 CN201113419Y (en) | 2007-09-14 | 2007-09-14 | Ultra-high voltage porcelain bushing type lightning arrestor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720032769 CN201113419Y (en) | 2007-09-14 | 2007-09-14 | Ultra-high voltage porcelain bushing type lightning arrestor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201113419Y true CN201113419Y (en) | 2008-09-10 |
Family
ID=39965164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200720032769 Expired - Lifetime CN201113419Y (en) | 2007-09-14 | 2007-09-14 | Ultra-high voltage porcelain bushing type lightning arrestor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201113419Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101847477B (en) * | 2009-03-27 | 2012-05-09 | 抚顺电瓷制造有限公司 | Ultra-high voltage porcelain bushing type zero-clearance zinc oxide lightning arrester |
| CN103280792A (en) * | 2013-04-24 | 2013-09-04 | 国家电网公司 | Voltage limiter with porcelain housing for series compensation device |
| CN107037295A (en) * | 2017-05-25 | 2017-08-11 | 中国电力科学研究院 | A kind of 1000kV extra-high-voltage alternating currents switching mode controllable arrester voltage's distribiuting test method |
-
2007
- 2007-09-14 CN CN 200720032769 patent/CN201113419Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101847477B (en) * | 2009-03-27 | 2012-05-09 | 抚顺电瓷制造有限公司 | Ultra-high voltage porcelain bushing type zero-clearance zinc oxide lightning arrester |
| CN103280792A (en) * | 2013-04-24 | 2013-09-04 | 国家电网公司 | Voltage limiter with porcelain housing for series compensation device |
| CN103280792B (en) * | 2013-04-24 | 2016-09-21 | 国家电网公司 | A kind of series compensation device porcelain overcoat voltage limiter |
| CN107037295A (en) * | 2017-05-25 | 2017-08-11 | 中国电力科学研究院 | A kind of 1000kV extra-high-voltage alternating currents switching mode controllable arrester voltage's distribiuting test 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: WEST CHINA ELECTRIC POWER CO. Free format text: FORMER OWNER: XI'AN ELECTRIC MANUFACTURING CORP. Effective date: 20080905 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080905 Address after: Shaanxi province Xi'an City West High Tang Hing Road No. 7, zip code: 710075 Patentee after: China XD Electronic Corporation Address before: Shaanxi province Xi'an Fengdeng road 29, zip code: 710077 Patentee before: Xi'an Electric Manufacturing Corp. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080910 |