CN202282237U - Double-capacitive ring capacitive voltage division type electronic voltage transformer - Google Patents
Double-capacitive ring capacitive voltage division type electronic voltage transformer Download PDFInfo
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- CN202282237U CN202282237U CN2011204260419U CN201120426041U CN202282237U CN 202282237 U CN202282237 U CN 202282237U CN 2011204260419 U CN2011204260419 U CN 2011204260419U CN 201120426041 U CN201120426041 U CN 201120426041U CN 202282237 U CN202282237 U CN 202282237U
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- voltage transformer
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- partial pressure
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Abstract
The utility model relates to a single-phase capacitive voltage division type electronic voltage transformer which comprises a shell, a base, a bracket, an intermediate electrode, an insulation support, a high voltage electrode, a junction box, a disc insulator, an explosion-proof device, an upper shielding ring, a lower shielding ring and a grounding electrode, wherein the shell is fixedly mounted on the base; the insulation support is fixedly mounted on the base; the grounding electrode is fixedly mounted on the insulation support; the disc insulator is fixedly mounted on the shell; the high voltage electrode is connected with the disc insulator and is arranged in the inner cavity of the intermediate electrode; and the intermediate electrode, the upper shielding ring and the lower shielding ring are all fixedly mounted on the grounding electrode. As an aluminum alloy material with low coefficient of expansion is used for manufacturing the intermediate electrode, the upper shielding ring, the lower shielding ring and the shell, the fluctuation of test data due to material expansion is reduced; and as the high voltage electrode is designed as an arc-shaped cylindrical structure, and the ports of the intermediate electrode, the upper shielding ring and the lower shielding ring are designed to be in an arc-shaped transition shape, the point discharge is reduced.
Description
Technical field
The utility model relates to a kind of voltage transformer that power industry is used, specifically a kind of pair of electric capacity ring capacitance partial pressure type electronic type voltage transformer.
Background technology
Through the relevant patent documentation of retrieval, do not retrieve the two electric capacity ring capacitance partial pressure type electronic type voltage transformers identical at present as yet with the utility model structure.Power industry generally needs the working voltage instrument transformer when the voltage in the system being measured or carry out relaying protection.Existing voltage transformer is generally electromagnetic potential transformer, and this type of instrument transformer is owing to its complex structure, and volume is bigger, and frequency band is narrower, simultaneously because it adopts electromagnetic induction need have iron core, so the magnetic saturation phenomenon can take place.Though existing electronic type voltage transformer has overcome the defective that traditional electromagnetic transformer adopts iron core, make its volume obviously reduce, in light weight, also because its structural reason, its shielding and anti-interference aspect exist a lot of not enough; Existing capacitance partial pressure type electronic type voltage transformer makes the structure of equipment greatly simple; Dependable performance, failure rate are obviously low, but also owing to structural reason, equipment is still needed to be equipped with separately when operation and selected the phase power supply to use to supply with phase selection element; Make the having high input of equipment; The cost height that puts into operation of equipment so be necessary existing capacitance partial pressure type electronic type voltage transformer is improved, is produced actual needs to better meet.
Summary of the invention
The purpose of the utility model is that a kind of improvement on existing capacitance partial pressure type electronic type voltage transformer basis will be provided; Having to provide the phase selection element power supply, and a kind of pair of electric capacity ring capacitance partial pressure type electronic type voltage transformer being evenly distributed of compact conformation, internal electric field.
The technical characterictic of the utility model is: consider to be designed on compact conformation, the uniform basis of Electric Field Distribution by housing, base, support, target I, target II, high-field electrode, terminal box, disc insulator, on shielding ring, a kind of pair of electric capacity ring capacitance partial pressure type electronic type voltage transformer forming of shielding ring, grounding electrode down, on base, be fixed with housing; On base, be fixed with support; On housing, be fixed with disc insulator, on support, be fixed with grounding electrode, high-field electrode is connected with disc insulator, and is arranged in the inner chamber of target I, target II; Be fixed with respectively on the grounding electrode target I, target II, on shielding ring, shielding ring down; Terminal box is connected with housing; In the inner chamber of housing, be filled with sulfur hexafluoride gas.
Described housing links to each other for the body that adopts low-expansion aluminum alloy materials and process and with grounding electrode.
The port place of described housing is the arc shape structure.
The body of described target I for adopting low-expansion aluminum alloy materials to process, its port part is a circular arc transition shape.
The body of described target II for adopting low-expansion aluminum alloy materials to process, its port part is a circular arc transition shape.
The arc cylindrical shell of described high-field electrode for adopting low-expansion aluminum alloy materials to process.
Described terminal box is the shielding box body of a sealing.
The described body of shielding ring of going up for adopting low-expansion aluminum alloy materials to process.
The body of described shielding ring down for adopting low-expansion aluminum alloy materials to process.
During use; Be incorporated in the high-field electrode through the electric current of disc insulator primary side; Make target I, target II form induced current through electromagnetic induction; And the current information in the target I outwards is transferred to measuring instrument and detection control apparatus through secondary lead wires, the current information in the target II outwards is transferred to phase selection element.Enclosure interior is full of sulphur hexafluoride, its objective is that the insulation property of utilizing sulphur hexafluoride make the instrument transformer built-in electrical insulation; The end of high-field electrode is designed to convex structure and its objective is in order to make inner Electric Field Distribution even, reduces point discharge and designs; Target I, target II, go up shielding ring, the port part of the shielding ring structure that is designed to arc transition shape down, its objective is for the ease of internal pressure evenly, be convenient to gas flow, reduce the inner tip discharge and design.
The utility model has the advantages that: owing to be provided with the target II, can to phase selection element power supply be provided easily, thereby have reduced the input of selecting the phase power-supply device, reduce the equipment operation cost; Because adopting low-expansion aluminium alloy is that material is processed target I, target II, gone up shielding ring, shielding ring and housing down, thereby reduced the fluctuation that the detection data that change in volume brings take place for expansion because of material; Because high-field electrode is designed to the structure of arc tubular, thereby make inner Electric Field Distribution even, reduced point discharge; Because the port design transition shape in the arc-shaped of target I, target II, last shielding ring, following shielding ring, thereby reduced point discharge; Because it is that material is processed that housing adopts low-expansion aluminium alloy, and is connected with grounding electrode, makes device structure simple; Because compact conformation, rationally, dependable performance, failure rate are low, so very big practical and popularizing value is arranged.
Description of drawings
Below will combine accompanying drawing that the utility model is further described:
Accompanying drawing 1 is the structural representation of a kind of pair of electric capacity ring of the utility model capacitance partial pressure type electronic type voltage transformer;
Accompanying drawing 2 is structural representations of the target I of a kind of pair of electric capacity ring capacitance partial pressure type electronic type voltage transformer;
Accompanying drawing 4 is structural representations of the last shielding ring of a kind of pair of electric capacity ring capacitance partial pressure type electronic type voltage transformer;
Accompanying drawing 5 is structural representations of the following shielding ring of a kind of pair of electric capacity ring capacitance partial pressure type electronic type voltage transformer.
Embodiment
With reference to accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, accompanying drawing 4, accompanying drawing 5; A kind of pair of electric capacity ring capacitance partial pressure type electronic type voltage transformer of the utility model is made up of housing 1, base 2, support 3, target I 4, target II 5, high-field electrode 6, terminal box 7, disc insulator 8, last shielding ring 9, following shielding ring 10, grounding electrode 11, on base 2, is fixed with housing 1; On base 2, be fixed with support 3; On housing 1, be fixed with disc insulator 8; On support 3, be fixed with grounding electrode 11; High-field electrode 6 is connected with disc insulator 8; And be arranged in the inner chamber of target I 4, target II 5 the arc cylindrical shell of described high-field electrode 6 for adopting low-expansion aluminum alloy materials to process; Be fixed with respectively on the grounding electrode 11 target I 4, target II 5, on shielding ring 9, shielding ring 10 down; The body of described target I 4 for adopting low-expansion aluminum alloy materials to process; Its port part 41 is a circular arc transition shape; The body of described target II 5 for adopting low-expansion aluminum alloy materials to process; The described body of shielding ring 9 of going up for adopting low-expansion aluminum alloy materials to process, the described body of shielding ring 10 for adopting low-expansion aluminum alloy materials to process down; Terminal box 7 is connected with housing 1, and described terminal box 7 is the shielding box body of a sealing; In the inner chamber of housing 1, be filled with sulfur hexafluoride gas, described housing 1 links to each other for the body that adopts low-expansion aluminum alloy materials and process and with grounding electrode 11, and the 1a of port place of housing 1 is the arc shape structure.
Claims (9)
1. two electric capacity ring capacitance partial pressure type electronic type voltage transformers are made up of housing (1), base (2), support (3), target I (4), target II (5), high-field electrode (6), terminal box (7), disc insulator (8), last shielding ring (9), following shielding ring (10), grounding electrode (11), on base (2), are fixed with housing (1); On base (2), be fixed with support (3); On housing (1), be fixed with disc insulator (8); It is characterized in that: on support (3), be fixed with grounding electrode (11); High-field electrode (6) is connected with disc insulator (8), and is arranged in the inner chamber of target I (4), target II (5); On grounding electrode (11), be fixed with target I (4), target II (5), last shielding ring (9), following shielding ring (10) respectively; Terminal box (7) is connected with housing (1); In the inner chamber of housing (1), be filled with sulfur hexafluoride gas.
2. a kind of pair of electric capacity ring capacitance partial pressure type electronic type voltage transformer according to claim 1 is characterized in that: described housing (1) links to each other for the body that adopts low-expansion aluminum alloy materials and process and with grounding electrode (11).
3. a kind of pair of electric capacity ring capacitance partial pressure type electronic type voltage transformer according to claim 1 and 2 is characterized in that: the port place (1a) of described housing (1) is the arc shape structure.
4. a kind of pair of electric capacity ring capacitance partial pressure type electronic type voltage transformer according to claim 1; It is characterized in that: the body of described target I (4) for adopting low-expansion aluminum alloy materials to process, its port part (41) is a circular arc transition shape.
5. a kind of pair of electric capacity ring capacitance partial pressure type electronic type voltage transformer according to claim 1 is characterized in that: the body of described target II (5) for adopting low-expansion aluminum alloy materials to process.
6. a kind of pair of electric capacity ring capacitance partial pressure type electronic type voltage transformer according to claim 1 is characterized in that: the arc cylindrical shell of described high-field electrode (6) for adopting low-expansion aluminum alloy materials to process.
7. a kind of pair of electric capacity ring capacitance partial pressure type electronic type voltage transformer according to claim 1 is characterized in that: described terminal box (7) is the shielding box body of a sealing.
8. a kind of pair of electric capacity ring capacitance partial pressure type electronic type voltage transformer according to claim 1 is characterized in that: the described body of shielding ring (9) for adopting low-expansion aluminum alloy materials to process of going up.
9. a kind of pair of electric capacity ring capacitance partial pressure type electronic type voltage transformer according to claim 1 is characterized in that: the body of described shielding ring (10) down for adopting low-expansion aluminum alloy materials to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204260419U CN202282237U (en) | 2011-11-01 | 2011-11-01 | Double-capacitive ring capacitive voltage division type electronic voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204260419U CN202282237U (en) | 2011-11-01 | 2011-11-01 | Double-capacitive ring capacitive voltage division type electronic voltage transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202282237U true CN202282237U (en) | 2012-06-20 |
Family
ID=46228394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204260419U Expired - Fee Related CN202282237U (en) | 2011-11-01 | 2011-11-01 | Double-capacitive ring capacitive voltage division type electronic voltage transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202282237U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103093950A (en) * | 2011-11-01 | 2013-05-08 | 江苏思源赫兹互感器有限公司 | Capacitive voltage division electronic voltage transformer with double capacitive rings |
| CN103543311A (en) * | 2013-10-22 | 2014-01-29 | 江苏靖江互感器厂有限公司 | High-precision capacitance-resistance divider |
| CN104730419A (en) * | 2015-03-24 | 2015-06-24 | 国网河南省电力公司电力科学研究院 | Voltage traveling-wave sensor and installation and use method |
-
2011
- 2011-11-01 CN CN2011204260419U patent/CN202282237U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103093950A (en) * | 2011-11-01 | 2013-05-08 | 江苏思源赫兹互感器有限公司 | Capacitive voltage division electronic voltage transformer with double capacitive rings |
| CN103543311A (en) * | 2013-10-22 | 2014-01-29 | 江苏靖江互感器厂有限公司 | High-precision capacitance-resistance divider |
| 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 |
| CN104730419A (en) * | 2015-03-24 | 2015-06-24 | 国网河南省电力公司电力科学研究院 | Voltage traveling-wave sensor and installation and use method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120620 Termination date: 20161101 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |