CN107546019A - A kind of direct current resistive voltage transformer - Google Patents
A kind of direct current resistive voltage transformer Download PDFInfo
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- CN107546019A CN107546019A CN201610483026.5A CN201610483026A CN107546019A CN 107546019 A CN107546019 A CN 107546019A CN 201610483026 A CN201610483026 A CN 201610483026A CN 107546019 A CN107546019 A CN 107546019A
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- resistive
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- hollow insulator
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Abstract
The invention discloses a kind of direct current resistive voltage transformer, including hollow insulator, shading ring, it is dielectrically separated from plate, aerating and exhaust device and n resistive-capacitive voltage divider module, shading ring and aerating and exhaust device are separately positioned on the both ends of hollow insulator, n resistive-capacitive voltage divider module is sequentially connected in series and is fixed on inside hollow insulator, it is dielectrically separated from plate to be arranged between resistive-capacitive voltage divider module and aerating and exhaust device, filled with dielectric inside hollow insulator.Resistive-capacitive voltage divider module includes insulation supporting tube, voltage-dividing capacitor and multiple measurement resistance, voltage-dividing capacitor is fixed on inside insulation supporting tube, multiple measurement resistance are sequentially connected in series and are fixed on the outer wall of insulation supporting tube, the measurement resistance of series connection is in parallel with voltage-dividing capacitor, filled with dielectric inside insulation supporting tube.The present invention is by the RC divider modularization in voltage transformer, and by the way that the modularization RC divider of varying number is connected to realize different voltage class, extendibility is strong, is easy to mass produce.
Description
Technical field
The invention belongs to power transmission and transformation High-Voltage Electrical Appliances field, a kind of more particularly to direct current resistive voltage transformer.
Background technology
High-voltage dc voltage transformer is to ensureing that the safe and stable operation of HVDC transmission system plays an important roll, mesh
Preceding China is built and the DC voltage measurement equipment that is used in the high voltage direct current transmission project built is imported product, in recent years
Operating experience show that similar imported product is not only expensive, after-sale service not in time, its insulation system more using it is oil-filled,
Gas mode, complicated and existing defects, and be not easy to safeguard, it is impossible to fully meet the need that direct current electric transmission and transformation system is run steadily in the long term
Ask.
At present, DC voltage measurement typically uses following several ways：Electromagnetic induction principle, Zero flux comparator principle,
Pockels electrooptic effects and electric resistance partial pressure principle.Wherein electric resistance partial pressure principle is simple, stable work in work, the degree of accuracy are higher, because
And it is applied widely.Nationalization process of the China to DC transmission engineering DC voltage transformer falls behind relatively, lacks
It is steady that corresponding R＆D experience, the wherein DC voltage transformer of electric resistance partial pressure principle never solve offer high-volume, performance
Fixed RC divider problem.
The content of the invention
In order to solve the technical problem that above-mentioned background technology proposes, the present invention is intended to provide a kind of direct current resistive voltage is mutual
Sensor, by the RC divider modularization in voltage transformer, by by the modularization RC divider of varying number connect come
Different voltage class are realized, extendibility is strong, is easy to mass produce.
In order to realize above-mentioned technical purpose, the technical scheme is that：
A kind of direct current resistive voltage transformer, including hollow insulator, shading ring, it is dielectrically separated from plate, aerating and exhaust device and n
Individual resistive-capacitive voltage divider module, the number n of resistive-capacitive voltage divider module determine by required voltage class, the shading ring and aerating and exhaust device
The both ends of hollow insulator are separately positioned on, n resistive-capacitive voltage divider module is sequentially connected in series and be fixed on inside hollow insulator, described
It is dielectrically separated from plate to be arranged between resistive-capacitive voltage divider module and aerating and exhaust device, filled with dielectric inside hollow insulator；It is described
Resistive-capacitive voltage divider module includes insulation supporting tube, voltage-dividing capacitor and multiple measurement resistance, voltage-dividing capacitor and is fixed on insulating supporting
Inside pipe, multiple measurement resistance are sequentially connected in series and are fixed on the outer wall of insulation supporting tube, measurement resistance and the partial pressure electricity of series connection
Container is in parallel, filled with dielectric inside insulation supporting tube.
Preferred scheme based on above-mentioned technical proposal, the outer wall of the supports insulative pipe are provided with the groove of some helical arrangements
, insulating materials is filled with each groove position, the measurement resistance is fixed in groove position by the casting mode that insulate.
Preferred scheme based on above-mentioned technical proposal, the insulating materials filled in the groove position include but is not limited to glass fibers
Dimension.
Preferred scheme based on above-mentioned technical proposal, the dielectric inside the hollow insulator and insulation supporting tube are
Insulating gas or insulating oil.
Preferred scheme based on above-mentioned technical proposal, the dielectric inside the hollow insulator and insulation supporting tube are protected
Unified pressure and density are held, and can mutually be circulated.
The beneficial effect brought using above-mentioned technical proposal：
The present invention is by the way that by RC divider modularization, the insulation improved under DC voltage and Impulse Voltage is reliable
Property, and it is adapted to large-scale production, the RC divider for varying number of connecting can realize the mutual induction of voltage of different voltage class
Device, enhance the extendibility of product.
The resistance device being together in series is solidificated on insulating supporting tube wall by the present invention using the method for high-temperature insulation casting,
First, solves the reliable fixation problem of resistance；Second, solve dissipating for resistance by the control of cast material, technique, cast layer thickness
Heat problem；Third, the single resistance device that the resistance device reliability of integral cast shaping is fixed far above separation；Four are so that
The inspection of a large amount of resistance devices has operability.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of resistive-capacitive voltage divider module in the present invention.
Label declaration：101st, resistance is measured；102nd, insulation supporting tube；103rd, dielectric；104th, voltage-dividing capacitor；201、
Shading ring；202nd, resistive-capacitive voltage divider module；203 hollow insulators；204th, it is dielectrically separated from plate；205th, aerating and exhaust device.
Embodiment
Below with reference to accompanying drawing, technical scheme is described in detail.
As shown in figure 1, a kind of direct current resistive voltage transformer, including hollow insulator 203, shading ring 201, insulation every
From plate 204, aerating and exhaust device 205 and n resistive-capacitive voltage divider module 202, the number n of resistive-capacitive voltage divider module is by required voltage etc.
Level determines that the shading ring 201 and aerating and exhaust device 205 are separately positioned on the both ends of hollow insulator 203, n resistive-capacitive voltage divider
Module 202 is sequentially connected in series and is fixed on inside hollow insulator 203, and the plate 204 that is dielectrically separated from is arranged at resistive-capacitive voltage divider module
Between 202 and aerating and exhaust device 205, filled with dielectric inside hollow insulator 203.
As shown in Fig. 2 resistive-capacitive voltage divider module 202 includes insulation supporting tube 102, voltage-dividing capacitor 104 and multiple measurement electricity
Resistance 101, voltage-dividing capacitor 104 is fixed on inside insulation supporting tube 102, and multiple measurement resistance 101 are sequentially connected in series and are fixed on absolutely
On the outer wall of edge support tube 102, the measurement resistance of series connection is in parallel with voltage-dividing capacitor, filled with dielectric inside insulation supporting tube
103。
In the present embodiment, the outer wall of above-mentioned supports insulative pipe 103 is provided with the groove position of some helical arrangements, in each groove position
Filled with insulating materials（Such as glass fibre）, it is described measurement resistance 101 be fixed on by the casting mode that insulate in groove position.
In the present embodiment, the dielectric inside above-mentioned hollow insulator 203 and insulation supporting tube 102 is insulating gas
Or insulating oil.Dielectric inside hollow insulator and insulation supporting tube keeps unified pressure and density, and can mutually flow
It is logical.
The technological thought of above example only to illustrate the invention, it is impossible to protection scope of the present invention is limited with this, it is every
According to technological thought proposed by the present invention, any change done on the basis of technical scheme, the scope of the present invention is each fallen within
Within.
Claims (5)
- A kind of 1. direct current resistive voltage transformer, it is characterised in that：Including hollow insulator, shading ring, it is dielectrically separated from plate, fills Means of deflation and n resistive-capacitive voltage divider module, the number n of resistive-capacitive voltage divider module determine by required voltage class, the shielding Ring and aerating and exhaust device are separately positioned on the both ends of hollow insulator, and n resistive-capacitive voltage divider module is sequentially connected in series and be fixed on hollow Interior insulator, the plate that is dielectrically separated from are arranged between resistive-capacitive voltage divider module and aerating and exhaust device, filled inside hollow insulator There is dielectric；The resistive-capacitive voltage divider module includes insulation supporting tube, voltage-dividing capacitor and multiple measurement resistance, voltage-dividing capacitor It is fixed on inside insulation supporting tube, multiple measurement resistance are sequentially connected in series and are fixed on the outer wall of insulation supporting tube, the survey of series connection It is in parallel with voltage-dividing capacitor to measure resistance, filled with dielectric inside insulation supporting tube.
- A kind of 2. direct current resistive voltage transformer according to claim 1, it is characterised in that：Outside the supports insulative pipe Wall is provided with the groove position of some helical arrangements, and insulating materials is filled with each groove position, and the measurement resistance passes through casting side of insulating Formula is fixed in groove position.
- A kind of 3. direct current resistive voltage transformer according to claim 2, it is characterised in that：That is filled in the groove position is exhausted Edge material includes but is not limited to glass fibre.
- A kind of 4. direct current resistive voltage transformer according to claim 1, it is characterised in that：The hollow insulator and absolutely Dielectric inside edge support tube is insulating gas or insulating oil.
- A kind of 5. direct current resistive voltage transformer according to claim 1, it is characterised in that：The hollow insulator and absolutely Dielectric inside edge support tube keeps unified pressure and density, and can mutually circulate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610483026.5A CN107546019B (en) | 2016-06-27 | 2016-06-27 | Direct current resistance type voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610483026.5A CN107546019B (en) | 2016-06-27 | 2016-06-27 | Direct current resistance type voltage transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107546019A true CN107546019A (en) | 2018-01-05 |
| CN107546019B CN107546019B (en) | 2020-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610483026.5A Active CN107546019B (en) | 2016-06-27 | 2016-06-27 | Direct current resistance type voltage transformer |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110596442A (en) * | 2019-08-12 | 2019-12-20 | 常州博瑞电力自动化设备有限公司 | Electronic voltage transformer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003059738A (en) * | 2001-08-16 | 2003-02-28 | Toko Electric Corp | Voltage transformer |
| US20050122122A1 (en) * | 2003-12-04 | 2005-06-09 | Fieldmetrics Inc. | Voltage sensor and dielectric material |
| 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 |
| CN101713793B (en) * | 2009-12-04 | 2012-02-01 | 中国西电电气股份有限公司 | Gas insulation-based DC high voltage measuring device |
| CN204989277U (en) * | 2015-08-20 | 2016-01-20 | 中国电力科学研究院 | Take temperature monitoring's dc voltage divider |
-
2016
- 2016-06-27 CN CN201610483026.5A patent/CN107546019B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003059738A (en) * | 2001-08-16 | 2003-02-28 | Toko Electric Corp | Voltage transformer |
| US20050122122A1 (en) * | 2003-12-04 | 2005-06-09 | Fieldmetrics Inc. | Voltage sensor and dielectric material |
| 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 |
| CN101713793B (en) * | 2009-12-04 | 2012-02-01 | 中国西电电气股份有限公司 | Gas insulation-based DC high voltage measuring device |
| CN204989277U (en) * | 2015-08-20 | 2016-01-20 | 中国电力科学研究院 | Take temperature monitoring's dc voltage divider |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110596442A (en) * | 2019-08-12 | 2019-12-20 | 常州博瑞电力自动化设备有限公司 | Electronic voltage transformer |
| CN110596442B (en) * | 2019-08-12 | 2022-06-07 | 常州博瑞电力自动化设备有限公司 | Electronic voltage transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107546019B (en) | 2020-07-28 |
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Effective date of registration: 20230627 Address after: 211102, No. 69, Su Yuan Avenue, Jiangning District, Jiangsu, Nanjing Patentee after: NR ELECTRIC Co.,Ltd. Patentee after: NR ENGINEERING Co.,Ltd. Patentee after: NR ELECTRIC POWER ELECTRONICS Co.,Ltd. Address before: 211102, No. 69, Su Yuan Avenue, Jiangning District, Jiangsu, Nanjing Patentee before: NR ELECTRIC Co.,Ltd. Patentee before: NR ENGINEERING Co.,Ltd. |