CN102928639B - Electronic capacitive voltage divider - Google Patents
Electronic capacitive voltage divider Download PDFInfo
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- CN102928639B CN102928639B CN201110224233.6A CN201110224233A CN102928639B CN 102928639 B CN102928639 B CN 102928639B CN 201110224233 A CN201110224233 A CN 201110224233A CN 102928639 B CN102928639 B CN 102928639B
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Abstract
The present invention relates to the capacitive divider of a kind of electronic type of power industry, be made up of sleeve pipe, upper flange, expander, high-voltage capacitance divided fraction, low-voltage capacitance divided fraction, the parts that are fastened, lower flange, base, intermediate voltage terminal, upper cover plate, base is fixed with the parts that are fastened; Be fixed with high-voltage capacitance divided fraction, low-voltage capacitance divided fraction respectively being fastened on parts; The peripheral lower flange of the parts that are fastened is fixed with sleeve pipe; Owing to high-voltage capacitance divided fraction, low-voltage capacitance divided fraction entirety being fastened and being fastened on parts, make internal component firm, decrease because of the quality wild effect occurred of jolting; Owing to low-voltage capacitance divided fraction to be designed to capacitances in series part and Capacitance parallel connection part two kinds of forms, measuring accuracy is significantly improved; Owing to being provided with sleeve pipe being fastened outside parts, forming an airtight sleeve pipe cavity, make the versatility of product stronger.
Description
Technical field
The present invention relates to a kind of capacitive divider of power industry, specifically a kind of capacitive divider of electronic type.
Background technology
Through retrieval Patent documents of interest, not yet retrieve the electronic type capacitive divider identical with structure of the present invention at present.Capacitive divider as the voltage test device for telling off different electric pressure from tested voltage, in power industry widespread use.Existing capacitive divider is due to the reason of its structure, high-voltage capacitance divided fraction and low-voltage capacitance divided fraction generally take the mode of connecting to reach the object reducing voltage, this makes tested precision relatively low, the requirement reaching high precision measurement is then difficult to for the product that test request is high, so be necessary to be improved existing capacitive divider, with the needs of satisfied reality.
Summary of the invention
The object of the invention is to provide a kind of improvement on existing capacitive divider basis, there is measuring accuracy high, and a kind of electronic capacitive voltage divider of highly versatile, compact conformation, good stability.
Technical characteristic of the present invention is: high in consideration measuring accuracy, on the basis of highly versatile, be designed to the electronic capacitive voltage divider be made up of sleeve pipe, upper flange, expander, high-voltage capacitance divided fraction, low-voltage capacitance divided fraction, the parts that are fastened, lower flange, base, intermediate voltage terminal, upper cover plate, base is fixed with the parts that are fastened; Be fixed with high-voltage capacitance divided fraction, low-voltage capacitance divided fraction respectively being fastened on parts; Be provided with expander being fastened on parts; The peripheral lower flange of the parts that are fastened is fixed with sleeve pipe; Sleeve pipe is fixed with upper flange, upper flange is provided with upper cover plate; Lower flange is connected with base; Intermediate voltage terminal is packed on base; Insulating oil is provided with in the annular seal space that sleeve pipe, upper cover plate, base are formed.
Described sleeve pipe is the hollow body that the glass fiber yarn wound and solidified of epoxy resin is made.
Described high-voltage capacitance divided fraction is a high-voltage capacitance interface unit of mutually connecting.
Described low-voltage capacitance divided fraction is made up of capacitances in series part, Capacitance parallel connection part, and described capacitances in series part refers to takes the form of series connection mutually to connect between its low-voltage capacitance body; Described Capacitance parallel connection part refers to takes form parallel with one another to connect between low-voltage capacitance body.
The described parts that are fastened, it is grouped into by fixed mount, wound portion, and fixed mount is a fixing bracket body for fixing high-voltage capacitance divided fraction, low-voltage capacitance divided fraction; Winding part is wrapped in the periphery of high-voltage capacitance divided fraction, low-voltage capacitance divided fraction respectively, becomes a sturdy fixed body.
When producing installation, first respectively high-voltage capacitance divided fraction, low-voltage capacitance divided fraction are designed according to designing requirement, and connect according to designing requirement each capacity cell by high-voltage capacitance divided fraction, be connected with low-voltage capacitance divided fraction again, low-voltage capacitance divided fraction is formed by capacitances in series part, Capacitance parallel connection part, and is connected by two parts; Carry out bundle in the periphery of high-voltage capacitance divided fraction, low-voltage capacitance divided fraction by insulated tier again to consolidate, bundle, become the entirety stablized, fix, entirety being packed in is fastened on the fixed mount of parts again, and be fixed on base by the parts that are fastened, make whole internal works firm; Insulating oil is injected again in the annular seal space that sleeve pipe, upper cover plate, base are formed.
Advantage of the present invention is: owing to high-voltage capacitance divided fraction, low-voltage capacitance divided fraction entirety being fastened and being fastened on parts, makes internal component firm, because of the quality wild effect of generation of jolting when decreasing transport; Owing to low-voltage capacitance divided fraction to be designed to capacitances in series part and Capacitance parallel connection part two kinds of forms, the measuring accuracy of complete machine is significantly improved; Owing to being provided with sleeve pipe being fastened outside parts, making whole capacitive divider form an airtight sleeve pipe cavity, thus can carry out determining whether to install full skirt outside sleeve pipe according to the requirement of the difference of product and design, make the versatility of product stronger; Due to compact conformation, reasonable, measuring accuracy is high, so there is very large practical and popularizing value.
Accompanying drawing explanation
Below with reference to accompanying drawing, the present invention is conducted further description:
Accompanying drawing 1 is the structural representation of electronic capacitive voltage divider of the present invention;
Accompanying drawing 2 is partial structurtes schematic diagram of electronic capacitive voltage divider.
Embodiment
With reference to accompanying drawing 1, accompanying drawing 2, electronic capacitive voltage divider of the present invention is made up of sleeve pipe 1, upper flange 2, expander 3, high-voltage capacitance divided fraction 4, low-voltage capacitance divided fraction 5, the parts 6 that are fastened, lower flange 7, base 8, intermediate voltage terminal 9, upper cover plate 10, and base 8 is fixed with the parts 6 that are fastened; Be fixed with high-voltage capacitance divided fraction 4, low-voltage capacitance divided fraction 5 respectively being fastened on parts 6, described high-voltage capacitance divided fraction 4 is the high-voltage capacitance interface unit of a series connection mutually; Described low-voltage capacitance divided fraction 5 is made up of capacitances in series part 51, Capacitance parallel connection part 52, and described capacitances in series part 51 refers to takes the form of series connection mutually to connect between its low-voltage capacitance body; Described Capacitance parallel connection part 52 refers to takes form parallel with one another to connect between low-voltage capacitance body; Be provided with expander 3, the described parts 6 that are fastened being fastened on parts 6, it by fixed mount 61, be wound around part 62 and form, fixed mount 61 is a fixing bracket body for fixing high-voltage capacitance divided fraction 4, low-voltage capacitance divided fraction 5; Be wound around part 62 and be wrapped in the periphery of high-voltage capacitance divided fraction 4, low-voltage capacitance divided fraction 5 respectively, become a sturdy fixed body; The peripheral lower flange 7 of parts 6 that is fastened is fixed with sleeve pipe 1, the hollow body that described sleeve pipe 1 is made for the glass fiber yarn wound and solidified being impregnated with epoxy resin; Sleeve pipe 1 is fixed with upper flange 2; Upper flange 2 is provided with upper cover plate 10, and lower flange 7 is connected with base 8; Intermediate voltage terminal 9 is packed on base 8; Insulating oil is provided with in the annular seal space that sleeve pipe 1, upper cover plate 10, base 8 are formed.
Claims (2)
1. electronic capacitive voltage divider, it is made up of sleeve pipe (1), upper flange (2), expander (3), high-voltage capacitance divided fraction (4), low-voltage capacitance divided fraction (5), the parts that are fastened (6), lower flange (7), base (8), intermediate voltage terminal (9), upper cover plate (10), sleeve pipe (1) is fixed with upper flange (2), upper flange (2) is provided with upper cover plate (10); Lower flange (7) is connected with base (8); Intermediate voltage terminal (9) is packed on base (8); Insulating oil is provided with in the annular seal space that sleeve pipe (1), upper cover plate (10), base (8) are formed; The hollow body that the glass fiber yarn wound and solidified that described sleeve pipe (1) is epoxy resin is made; Described high-voltage capacitance divided fraction (4) is a high-voltage capacitance interface unit of mutually connecting, and it is characterized in that: on base (8), be fixed with the parts that are fastened (6); The parts that are fastened (6) are fixed with high-voltage capacitance divided fraction (4), low-voltage capacitance divided fraction (5) respectively; The parts that are fastened (6) are provided with expander (3); The peripheral lower flange (7) of the parts that are fastened (6) is fixed with sleeve pipe (1); Described low-voltage capacitance divided fraction (5) is made up of capacitances in series part (51), Capacitance parallel connection part (52), and described capacitances in series part (51) refers to takes the form of series connection mutually to connect between its low-voltage capacitance body; Described Capacitance parallel connection part (52) refers to takes form parallel with one another to connect between low-voltage capacitance body.
2. electronic capacitive voltage divider according to claim 1, it is characterized in that: the described parts that are fastened (6), it is made up of fixed mount (61), winding part (62), and fixed mount (61) is a fixing bracket body for fixing high-voltage capacitance divided fraction (4), low-voltage capacitance divided fraction (5); Be wound around part (62) and be wrapped in the periphery of high-voltage capacitance divided fraction (4), low-voltage capacitance divided fraction (5) respectively, become a sturdy fixed body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110224233.6A CN102928639B (en) | 2011-08-07 | 2011-08-07 | Electronic capacitive voltage divider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110224233.6A CN102928639B (en) | 2011-08-07 | 2011-08-07 | Electronic capacitive voltage divider |
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| Publication Number | Publication Date |
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| CN102928639A CN102928639A (en) | 2013-02-13 |
| CN102928639B true CN102928639B (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110224233.6A Active CN102928639B (en) | 2011-08-07 | 2011-08-07 | Electronic capacitive voltage divider |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103543311B (en) * | 2013-10-22 | 2017-01-04 | 江苏靖江互感器厂有限公司 | A kind of High-precision capacitance-resistandivider divider |
| CN105527478A (en) * | 2014-10-24 | 2016-04-27 | 北京自动化控制设备研究所 | Passive electronic voltage transformer |
| CN105629018B (en) * | 2015-12-25 | 2018-07-13 | 国家电网公司 | A kind of small modular RC divider |
| CN108918945A (en) * | 2018-05-22 | 2018-11-30 | 上海置信电气股份有限公司 | One secondary deep of one kind fusion voltage sensor and its design technology method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2739720B1 (en) * | 1995-10-04 | 1997-12-05 | Schneider Electric Sa | METHOD FOR MANUFACTURING AN INSULATOR AND ISOLATOR CARRIED OUT ACCORDING TO THIS METHOD |
| JP2000277363A (en) * | 1999-01-22 | 2000-10-06 | Meidensha Corp | Capacitance divider voltage transformer |
| CN2498721Y (en) * | 2001-09-27 | 2002-07-03 | 苏仲衡 | Dry capacitor style voltage mutual inductor |
| CN2526854Y (en) * | 2002-02-05 | 2002-12-18 | 周友东 | Voltage sensor |
| CN201072701Y (en) * | 2007-08-15 | 2008-06-11 | 无锡市锡容电力电器厂 | Capacitive potential divider |
| CN201335857Y (en) * | 2008-12-26 | 2009-10-28 | 中国西电电气股份有限公司 | Voltage sensor for high-voltage DC transmission |
| CN202204861U (en) * | 2011-08-07 | 2012-04-25 | 江苏思源赫兹互感器有限公司 | Electronic capacitive voltage divider |
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