CN102479607A - Dividing type electronic voltage transformer of single-phase capacitor - Google Patents
Dividing type electronic voltage transformer of single-phase capacitor Download PDFInfo
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- CN102479607A CN102479607A CN2010105614285A CN201010561428A CN102479607A CN 102479607 A CN102479607 A CN 102479607A CN 2010105614285 A CN2010105614285 A CN 2010105614285A CN 201010561428 A CN201010561428 A CN 201010561428A CN 102479607 A CN102479607 A CN 102479607A
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- voltage transformer
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Abstract
The invention relates to a dividing type electronic voltage transformer of a single-phase capacitor, which is used in an electric industry. The voltage transformer consists of a shell, a base, a bracket, an intermediate electrode, an insulating support, a high-voltage electrode, a terminal box, a disk type insulator, an explosion-proof device, an upper screening ring, a lower screening ring and a grounding electrode, wherein the shell is fixedly mounted on the base; the insulating support is fixedly mounted on the base; the grounding electrode is fixedly mounted on the insulating support; the disk type insulator is fixedly arranged on the shell; the high-voltage electrode is connected with the disk type insulator and arranged in an inner cavity of the intermediate electrode; and the intermediate electrode, the upper screening ring and the lower screening ring are fixedly mounted on the grounding electrode respectively. As the intermediate electrode, the upper screening ring, the lower screening ring and the shell are made of an aluminum alloy with a low expansion coefficient, the fluctuation of data detection caused by material expansion is reduced; and furthermore, the high-voltage electrode is designed in an arc and cylindrical structure and ports of the intermediate electrode, the upper screening ring and the lower screening ring are designed in an arc transition shape, so that the marginal discharge is reduced.
Description
Technical field
The present invention relates to a kind of voltage transformer that power industry is used, a kind of specifically single-phase capacitance divides the die mould electronic type voltage transformer.
Background technology
Through the relevant patent documentation of retrieval, do not retrieve the single-phase capacitance identical as yet at present and divide the die mould electronic type voltage transformer with structure of the present invention.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; But also because its structural reason; Its shielding and anti-interference aspect exist a lot of not enough, so be necessary existing electronic type voltage transformer is improved, produce actual needs to better meet.
Summary of the invention
The objective of the invention is to provide a kind of improvement on existing electronic type voltage transformer basis, have compact conformation, shield effectiveness is good, a kind of single-phase capacitance that internal electric field is evenly distributed divides the die mould electronic type voltage transformer.
Technical characterictic of the present invention is: consider to be designed on compact conformation, the uniform basis of Electric Field Distribution by housing, base, support, target, insulation supporter, high-field electrode, terminal box, disc insulator, explosion-protection equipment, on shielding ring, a kind of single-phase capacitance of forming of shielding ring, grounding electrode divides the die mould electronic type voltage transformer down, on base, is fixed with housing; On base, be fixed with insulation supporter; On insulation supporter, install grounding electrode; On housing, be fixed with disc insulator; High-field electrode is connected with disc insulator, and is arranged in the inner chamber of target; Be fixed with respectively on the grounding electrode target, on shielding ring, following shielding ring; Terminal box is connected with housing; Support is packed on the base; In the inner chamber of housing, be filled with sulfur hexafluoride gas; Described explosion-protection equipment is connected with base.
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 for adopting low-expansion aluminum alloy materials to process, its port part is a circular arc transition shape.
The connecting bolt that is used for being connected with grounding electrode in the described insulation supporter is an insulated bolt.
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 for adopting low-expansion aluminum alloy materials to process of going up, its port part is a circular arc transition shape.
The body of described shielding ring down for adopting low-expansion aluminum alloy materials to process, its port part is a circular arc transition shape.
During use, be incorporated in the high-field electrode, make target form induced current through electromagnetic induction, and the current information in the circuit outwards is transferred to measuring instrument and detection control apparatus through secondary lead wires through the electric current of disc insulator with primary side.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, 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.
Advantage of the present invention is: owing to adopt low-expansion aluminium alloy is that material is processed target, gone up shielding ring, shielding ring and housing down, thereby has 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, 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 rational in infrastructure, 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 present invention is further described:
Accompanying drawing 1 is the structural representation that a kind of single-phase capacitance of the present invention divides the die mould electronic type voltage transformer;
Accompanying drawing 2 is structural representations that a kind of single-phase capacitance divides the target of die mould electronic type voltage transformer;
Accompanying drawing 3 is structural representations that a kind of single-phase capacitance divides the high-field electrode of die mould electronic type voltage transformer;
Accompanying drawing 4 is structural representations that a kind of single-phase capacitance divides the last shielding ring of die mould electronic type voltage transformer;
Accompanying drawing 5 is structural representations that a kind of single-phase capacitance divides the following shielding ring of die mould 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 single-phase capacitance of the present invention divides the die mould electronic type voltage transformer to be made up of housing 1, base 2, support 3, target 4, insulation supporter 5, high-field electrode 6, terminal box 7, disc insulator 8, explosion-protection equipment 9, last shielding ring 10, following shielding ring 11, grounding electrode 12; On base 2, be fixed with housing 1; Described housing 1 links to each other for the body that adopts low-expansion aluminum alloy materials and process and with grounding electrode, and the 1a of port place of described housing 1 is the arc shape structure; On base 2, be fixed with insulation supporter 5; On insulation supporter 5, be fixed with grounding electrode 12, the connecting bolt 51 that is used in the described insulation supporter 5 being connected with grounding electrode 12 is insulated bolt; On housing 1, be fixed with disc insulator 8; High-field electrode 6 is connected with disc insulator 8, and is arranged in the inner chamber of target 4, 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 12 target 4, on shielding ring 10, following shielding ring 11, the body of described target 4 for adopting low-expansion aluminum alloy materials to process, its port part 41 is a circular arc transition shape; The described body of shielding ring 10 of going up for adopting low-expansion aluminum alloy materials to process, its port part 101 is a circular arc transition shape; The body of described shielding ring 11 down for adopting low-expansion aluminum alloy materials to process, its port part 111 is a circular arc transition shape; Terminal box 7 is connected with housing 1, and described terminal box 7 is the shielding box body of a sealing; Support 3 is packed on the base 2; In the inner chamber of housing 1, be filled with sulfur hexafluoride gas; Described explosion-protection equipment 9 is connected with base 2.
Claims (9)
1. a single-phase capacitance divides the die mould electronic type voltage transformer to be made up of housing (1), base (2), support (3), target (4), insulation supporter (5), high-field electrode (6), terminal box (7), disc insulator (8), explosion-protection equipment (9), last shielding ring (10), following shielding ring (11), grounding electrode (12), it is characterized in that: on base (2), be fixed with housing (1); On base (2), be fixed with insulation supporter (5); On insulation supporter (5), be fixed with grounding electrode (12); On housing (1), be fixed with disc insulator (8); High-field electrode (6) is connected with disc insulator (8), and is arranged in the inner chamber of target (4); On grounding electrode (12), be fixed with target (4), last shielding ring (10), following shielding ring (11) respectively; Terminal box (7) is connected with housing (1); Support (3) is packed on the base (2); In the inner chamber of housing (1), be filled with sulfur hexafluoride gas; Described explosion-protection equipment (9) is connected with base (2).
2. a kind of single-phase capacitance according to claim 1 divides the die mould electronic type voltage transformer, it 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.
3. a kind of single-phase capacitance according to claim 1 and 2 divides the die mould electronic type voltage transformer, it is characterized in that: the port place (1a) of described housing (1) is the arc shape structure.
4. a kind of single-phase capacitance according to claim 1 divides the die mould electronic type voltage transformer, it is characterized in that: the body of described target (4) for adopting low-expansion aluminum alloy materials to process, its port part (41) is a circular arc transition shape.
5. a kind of single-phase capacitance according to claim 1 divides the die mould electronic type voltage transformer, it is characterized in that: the connecting bolt (51) that is used for being connected with grounding electrode (12) in the described insulation supporter (5) is an insulated bolt.
6. a kind of single-phase capacitance according to claim 1 divides the die mould electronic type voltage transformer, it 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 single-phase capacitance according to claim 1 divides the die mould electronic type voltage transformer, it is characterized in that: described terminal box (7) is the shielding box body of a sealing.
8. a kind of single-phase capacitance according to claim 1 divides the die mould electronic type voltage transformer, it is characterized in that: the described body of shielding ring (10) for adopting low-expansion aluminum alloy materials to process of going up, its port part (101) is a circular arc transition shape.
9. a kind of single-phase capacitance according to claim 1 divides the die mould electronic type voltage transformer, it is characterized in that: the body of described shielding ring (11) down for adopting low-expansion aluminum alloy materials to process, its port part (111) is a circular arc transition shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105614285A CN102479607A (en) | 2010-11-27 | 2010-11-27 | Dividing type electronic voltage transformer of single-phase capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105614285A CN102479607A (en) | 2010-11-27 | 2010-11-27 | Dividing type electronic voltage transformer of single-phase capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102479607A true CN102479607A (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105614285A Pending CN102479607A (en) | 2010-11-27 | 2010-11-27 | Dividing type electronic voltage transformer of single-phase capacitor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104678148A (en) * | 2013-11-26 | 2015-06-03 | 国家电网公司 | Equipotential shielding capacitor type voltage transformer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004022557A (en) * | 2002-06-12 | 2004-01-22 | Nissin Electric Co Ltd | Transformer for gas insulated meter |
| CN201134346Y (en) * | 2007-12-29 | 2008-10-15 | 武汉格蓝若光电互感器有限公司 | Novel high-voltage independent electronic voltage mutual inductor |
| CN201229847Y (en) * | 2008-06-18 | 2009-04-29 | 吉林省电力有限公司电力科学研究院 | Weak output capacitor type voltage mutual inductor |
| CN201449879U (en) * | 2009-03-13 | 2010-05-05 | 日新电机株式会社 | gas-insulated voltage transformer |
| CN201638666U (en) * | 2009-12-28 | 2010-11-17 | 上海卓高电气有限公司 | 110kV single-phase electromagnetic type voltage transformer without partial discharge |
| CN201918250U (en) * | 2010-11-05 | 2011-08-03 | 宁波三爱互感器有限公司 | Voltage transformer |
-
2010
- 2010-11-27 CN CN2010105614285A patent/CN102479607A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004022557A (en) * | 2002-06-12 | 2004-01-22 | Nissin Electric Co Ltd | Transformer for gas insulated meter |
| CN201134346Y (en) * | 2007-12-29 | 2008-10-15 | 武汉格蓝若光电互感器有限公司 | Novel high-voltage independent electronic voltage mutual inductor |
| CN201229847Y (en) * | 2008-06-18 | 2009-04-29 | 吉林省电力有限公司电力科学研究院 | Weak output capacitor type voltage mutual inductor |
| CN201449879U (en) * | 2009-03-13 | 2010-05-05 | 日新电机株式会社 | gas-insulated voltage transformer |
| CN201638666U (en) * | 2009-12-28 | 2010-11-17 | 上海卓高电气有限公司 | 110kV single-phase electromagnetic type voltage transformer without partial discharge |
| CN201918250U (en) * | 2010-11-05 | 2011-08-03 | 宁波三爱互感器有限公司 | Voltage transformer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104678148A (en) * | 2013-11-26 | 2015-06-03 | 国家电网公司 | Equipotential shielding capacitor type voltage transformer |
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Application publication date: 20120530 |