CN105869811A - 500kV alternating-current gapless metal oxide lightning arrester assembling method - Google Patents
500kV alternating-current gapless metal oxide lightning arrester assembling method Download PDFInfo
- Publication number
- CN105869811A CN105869811A CN201610391866.9A CN201610391866A CN105869811A CN 105869811 A CN105869811 A CN 105869811A CN 201610391866 A CN201610391866 A CN 201610391866A CN 105869811 A CN105869811 A CN 105869811A
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- CN
- China
- Prior art keywords
- lightning arrester
- metal oxide
- gapless metal
- alternating
- porcelain
- 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.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
- H01C7/12—Overvoltage protection resistors
Abstract
The invention discloses a 500kV alternating-current gapless metal oxide lightning arrester assembling method. The 500kV alternating-current gapless metal oxide lightning arrester assembling method comprises the steps that a lightning arrester body is installed on an insulation base, wherein the lightning arrester body comprises a porcelain sheath and a synthesized insulation sheath, the outer surface of the porcelain sheath is wrapped by the synthesized insulation sheath, umbrella skirts of the porcelain sheath are big and small unequal-diameter umbrellas, and the difference of the radius P1 of the big umbrellas and the radius P2 of the small umbrellas is greater than or equal to 15 mm; a voltage-sharing capacitor is installed at the top of the porcelain sheath; then, pressure release devices are installed at two ends of the lightning arrester; finally, an action and leakage current monitor is installed on the lightning arrester. The 500kV alternating-current gapless metal oxide lightning arrester assembling method achieves the advantage that the device failure rate is reduced.
Description
Technical field
The present invention relates to field of electrical equipment, in particular it relates to a kind of 500kV alternating current gapless metal oxide arrester assemble method.
Background technology
At present, the scheduled overhaul system that in power system, power equipment uses mostly also exists major defect, and as frequent in provisional maintenance, maintenance deficiency or maintenance surplus, blindly maintenance etc., this makes countries in the world costly in terms of maintenance of equipment every year.And for a long time, China's power system performs periodic inspection system to power equipment, to equipment Inspection and maintenance, thus there is the drawback that maintenance is excessively not enough with maintenance in the most planned time cycle.Because of fault at power train unification, often cause large-area power failure.And there is the problem that fault rate is higher in existing power equipment.
Summary of the invention
It is an object of the invention to, for the problems referred to above, propose a kind of 500kV alternating current gapless metal oxide arrester assemble method, to realize the advantage reducing equipment failure rate.
For achieving the above object, the technical solution used in the present invention is:
A kind of 500kV alternating current gapless metal oxide arrester assemble method, including,
Zinc oxide surge arresters body on insulator foot, described lightning arrester body includes porcelain overcoat and composite insulation overcoat, described composite insulation outer sheath covers is at the outer surface of porcelain overcoat, and the full skirt of porcelain overcoat is the most isometrical big umbellule, the radius P1 of gamp and umbellule the difference of radius P2 more than or equal to 15mm；
Equalizing capacitor is installed at the top of porcelain overcoat；
Then pressure relief device is installed at spark gap two ends；
Last installation action and leakage current monitor on spark gap.
Preferably, the shell of described action and leakage current monitor uses stainless steel material.
Preferably, it is filled with pressure-fired inside spark gap and is dried insulating gas.
Technical scheme, by improving 500kV alternating current gapless metal oxide arrester assemble method, reduces the purpose of equipment failure rate.
Detailed description of the invention
A kind of 500kV alternating current gapless metal oxide arrester assemble method, including,
Zinc oxide surge arresters body on insulator foot, lightning arrester body includes porcelain overcoat and composite insulation overcoat, composite insulation outer sheath covers is at the outer surface of porcelain overcoat, and the full skirt of porcelain overcoat is the most isometrical big umbellule, the radius P1 of gamp and umbellule the difference of radius P2 more than or equal to 15mm；
Equalizing capacitor is installed at the top of porcelain overcoat；
Then pressure relief device is installed at spark gap two ends；
Last installation action and leakage current monitor on spark gap.
And the ratio that the height between adjacent full skirt and full skirt stretch out is more than 0.9.
Preferably, the shell of action and leakage current monitor uses stainless steel material.
Preferably, it is filled with pressure-fired inside spark gap and is dried insulating gas.
The equal galvanizing of ferrum parts that spark gap exposes, composite sheath surface individual defect area is less than 5mm2, and the degree of depth is not more than 1mm, and height of projection is less than 0.8mm, coheres seam height of projection and is less than the 0.2% of composite sheath total surface less than 1.2mm, overall defect area.The outlet terminal of spark gap uses high-strength aluminum alloy or galvanized steel.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, it is not limited to the present invention, although the present invention being described in detail with reference to previous embodiment, for a person skilled in the art, technical scheme described in foregoing embodiments still can be modified by it, or wherein portion of techniques feature is carried out equivalent.All within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (3)
1. a 500kV alternating current gapless metal oxide arrester assemble method, it is characterized in that, including, zinc oxide surge arresters body on insulator foot, described lightning arrester body includes porcelain overcoat and composite insulation overcoat, described composite insulation outer sheath covers is at the outer surface of porcelain overcoat, and the full skirt of porcelain overcoat is the most isometrical big umbellule, the radius P1 of gamp and umbellule the difference of radius P2 more than or equal to 15mm；
Equalizing capacitor is installed at the top of porcelain overcoat；
Then pressure relief device is installed at spark gap two ends；
Last installation action and leakage current monitor on spark gap.
500kV alternating current gapless metal oxide arrester assemble method the most according to claim 1, it is characterised in that the shell of described action and leakage current monitor uses stainless steel material.
500kV alternating current gapless metal oxide arrester assemble method the most according to claim 1, it is characterised in that be filled with pressure-fired inside spark gap and be dried insulating gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610391866.9A CN105869811A (en) | 2016-06-06 | 2016-06-06 | 500kV alternating-current gapless metal oxide lightning arrester assembling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610391866.9A CN105869811A (en) | 2016-06-06 | 2016-06-06 | 500kV alternating-current gapless metal oxide lightning arrester assembling method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105869811A true CN105869811A (en) | 2016-08-17 |
Family
ID=56675875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610391866.9A Pending CN105869811A (en) | 2016-06-06 | 2016-06-06 | 500kV alternating-current gapless metal oxide lightning arrester assembling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105869811A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5218508A (en) * | 1989-02-07 | 1993-06-08 | Bowthorpe Industries Limited | Electrical surge arrester/diverter |
| CN101127437A (en) * | 2006-08-17 | 2008-02-20 | 西安电瓷研究所 | A combined coat lightning arrester |
| CN201207318Y (en) * | 2008-05-06 | 2009-03-11 | 正泰电气股份有限公司 | Metal oxide lightning arrester used for ultra-high voltage electric grid and power transmission and transformation system |
-
2016
- 2016-06-06 CN CN201610391866.9A patent/CN105869811A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5218508A (en) * | 1989-02-07 | 1993-06-08 | Bowthorpe Industries Limited | Electrical surge arrester/diverter |
| CN101127437A (en) * | 2006-08-17 | 2008-02-20 | 西安电瓷研究所 | A combined coat lightning arrester |
| CN201207318Y (en) * | 2008-05-06 | 2009-03-11 | 正泰电气股份有限公司 | Metal oxide lightning arrester used for ultra-high voltage electric grid and power transmission and transformation system |
Non-Patent Citations (2)
| Title |
|---|
| 宋伟等: ""全电子式氧化锌避雷器动作及泄漏电流在线检测仪原理及应用"", 《河南电力》 * |
| 张宏涛等: ""500kV系统用无间隙金属氧化物避雷器的优化研究"", 《电瓷避雷器》 * |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160817 |
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| RJ01 | Rejection of invention patent application after publication |