CN103245821B - Wideband voltage signal acquisition device - Google Patents
Wideband voltage signal acquisition device Download PDFInfo
- Publication number
- CN103245821B CN103245821B CN201310200265.1A CN201310200265A CN103245821B CN 103245821 B CN103245821 B CN 103245821B CN 201310200265 A CN201310200265 A CN 201310200265A CN 103245821 B CN103245821 B CN 103245821B
- Authority
- CN
- China
- Prior art keywords
- voltage
- noninductive
- resistor
- voltage resistor
- acquisition device
- 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.)
- Active
Links
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical group C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 claims description 9
- 239000012212 insulator Substances 0.000 claims description 4
- 230000001939 inductive effect Effects 0.000 abstract 6
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 230000008859 change Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Abstract
The invention discloses a wideband voltage signal acquisition device, which is characterized in that a resistance voltage dividing part of the device consists of a non-inductive high-voltage resistor (10) and a non-inductive low-voltage resistor (6)which are connected in series, wherein the non-inductive high-voltage resistor (10) is provided with more than one conductive plate (4) serving as a capacitance regulating part, the resistance value of the non-inductive high-voltage resistor (10) is 10-100 MOmega, the resistance value of the non-inductive low-voltage resistor (6) is 10-100 KOmega, the other end of the non-inductive high-voltage resistor (10) is electrically connected with a disc-like high-voltage connection terminal (1), when the number of the conductive plates (4) is one, the diameter of the plate is 5-20cm, the thickness of the plate is 2-10cm, the distance between the conductive plate (4) and the disc-like high-voltage connection terminal (1) is 2-10cm, when the number of the conductive plates (4) is two to ten, the diameter of the plates is 5-20cm, the thickness of the plates is 2-10cm, and the distance between each two plates is 2-10cm. The wideband voltage signal acquisition device can output 1-100MHZ voltage signal in a distortionless way and can be widely applied in an electric power system for acquiring various voltage signals.
Description
Technical field
The present invention relates to a kind of signal pickup assembly, especially a kind of wideband voltage signal acquisition device.
Background technology
In electric system, in order to understand the situation of change of voltage in electric power network in real time, people often use voltage transformer (VT), the electromagnetic potential transformer comparatively generally used in electric system as current.Though this electromagnetic potential transformer has, structure is simple, working stability reliable, to the sensitive advantage of power-frequency voltage, but express high-frequency voltage signal cannot be changed to some appearance in system, as being struck by lightning, superpotential waveform makes response in time, causes people not gather the high-frequency voltage signal occurred in system fast, effectively and accurately.But in electric system, due to the outwardness of natural atmospheric over-voltage and artificial switching overvoltage, the probability that HF voltage produces is very high, it is also very large to the infringement of equipment, need gather in time it and take the corresponding precautionary measures.For addressing this problem, people attempt the collection using resitstance voltage divider to realize high-frequency voltage signal.But, because resitstance voltage divider also exists larger difference in the dividing potential drop no-load voltage ratio of high frequency band and the dividing potential drop no-load voltage ratio of power frequency wave band, cause the distorted signals collected, the actual change of voltage waveform in electric power network can not be reflected objective, collecting work is performed practically no function.
Summary of the invention
The technical problem to be solved in the present invention for overcoming weak point of the prior art, provide a kind of rational in infrastructure, be suitable for the wide wideband voltage signal acquisition device of frequency.
For solving technical matters of the present invention, the technical scheme adopted is: wideband voltage signal acquisition device forms primarily of electric resistance partial pressure parts, particularly,
Described wideband voltage signal acquisition device also comprises electric capacity adjustment member;
Described electric resistance partial pressure parts are made up of the noninductive high-voltage resistor be connected in series and noninductive low voltage resistor;
Described electric capacity adjustment member is the conductive plate of more than, and described conductive plate is placed on described noninductive high-voltage resistor.
As the further improvement of wideband voltage signal acquisition device, the resistance of described noninductive high-voltage resistor is 10 ~ 100M Ω, and the resistance of noninductive low voltage resistor is 10 ~ 100K Ω; The other end of described noninductive high-voltage resistor is electrically connected with plate-like high-voltage connection terminal, and conductive plate is 1, and its dish diameter is 5 ~ 20cm, disc thickness is 2 ~ 10cm, and the spacing of conductive plate and plate-like high-voltage connection terminal is 2 ~ 10cm; Described conductive plate is 2 ~ 10, and its dish diameter is 5 ~ 20cm, disc thickness is 2 ~ 10cm, and dish spacing is 2 ~ 10cm; Described conductive plate be placed in form noninductive high-voltage resistor 2 ~ 11 resistance between, or to be set on noninductive high-voltage resistor and through Bolt to position; Discoid signal terminal is equipped with between described noninductive high-voltage resistor and noninductive low voltage resistor; The other end of described noninductive low voltage resistor is electrically connected with U-shaped dish and ground terminal successively; Described plate-like high-voltage connection terminal, noninductive high-voltage resistor, bolt, conductive plate, discoid signal terminal, noninductive low voltage resistor, U-shaped dish and ground terminal are coated with the insulator of band fairlead.
Relative to the beneficial effect of prior art be, adopt on the basis of existing electric resistance partial pressure parts, set up electric capacity adjustment member thereon again, and electric resistance partial pressure parts are made up of the noninductive high-voltage resistor be connected in series and noninductive low voltage resistor, electric capacity adjustment member is set to the conductive plate of more than simultaneously, and technical scheme conductive plate is placed on noninductive high-voltage resistor, both eliminated the existence of electric resistance partial pressure parts induction reactance, when having stopped high-frequency voltage signal approach electric resistance partial pressure parts, induction reactance is to its interference; Capacitive reactance again by changing noninductive high-voltage resistor in electric resistance partial pressure parts adjusts its electric resistance partial pressure no-load voltage ratio in high frequency, make electric resistance partial pressure no-load voltage ratio when itself and power frequency consistent, obtain the identical or basically identical result with the dividing potential drop no-load voltage ratio under power frequency component under high-frequency signal, drastically increase the degree of accuracy of collection.Through a large amount of actual measurements, the voltage signal of 0 ~ 100MHz can export by this voltage signal acquisition device rational in infrastructure without distortion, thus the collection making it can be widely used in electric system to carry out fast, effectively and accurately to various voltage signal.
As the further embodiment of beneficial effect, one is that the resistance of noninductive high-voltage resistor is preferably 10 ~ 100M Ω, the resistance of noninductive low voltage resistor is preferably 10 ~ 100K Ω, conductive plate is preferably 2 ~ 10, diameter is preferably 5 ~ 20cm to its dish, disc thickness is preferably 2 ~ 10cm, dish spacing is preferably 2 ~ 10cm, and being convenient to it, to be applied to electric pressure be neatly in the electric system of the wide region of 6 ~ 35kV.Two is that the other end of preferred noninductive high-voltage resistor is electrically connected with plate-like high-voltage connection terminal, conductive plate is 1, its dish diameter is 5 ~ 20cm, disc thickness is 2 ~ 10cm, the spacing of conductive plate and plate-like high-voltage connection terminal is 2 ~ 10cm, make it under the situation not reducing the consistent performance of dividing potential drop no-load voltage ratio, decrease the number of elements of conductive plate, reduce the cost of manufacture.Three is be equipped with discoid signal terminal between preferred noninductive high-voltage resistor and noninductive low voltage resistor, and the other end of noninductive low voltage resistor is electrically connected with U-shaped dish and ground terminal successively, is beneficial to and reduces outer signals to the interference of noninductive low voltage resistor.Four are plate-like high-voltage connection terminals, noninductive high-voltage resistor, bolt, conductive plate, discoid signal terminal, noninductive low voltage resistor, U-shaped dish and ground terminal be preferably coated with the insulator of band fairlead outward, improve the class of insulation of device, ensure that the security of device.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, optimal way of the present invention is described in further detail.
Fig. 1 is a kind of basic structure schematic diagram of the present invention.
Embodiment
See Fig. 1, being constructed as follows of wideband voltage signal acquisition device:
The one end of the electric resistance partial pressure parts be made up of the noninductive high-voltage resistor 10 be connected in series and noninductive low voltage resistor 6 is electrically connected with plate-like high-voltage connection terminal 1, the other end and is electrically connected with U-shaped dish 9 and ground terminal 7 successively.Noninductive high-voltage resistor 10 is equipped with 2 conductive plates 4 as electric capacity adjustment member, between noninductive high-voltage resistor 10 and noninductive low voltage resistor 6, is equipped with discoid signal terminal 5; Wherein, 2 conductive plates 4 be placed in form noninductive high-voltage resistor 10 three resistance between (or be set on noninductive high-voltage resistor 10 and locate through bolt 3), the dish diameter of conductive plate 4 is 5 ~ 20cm, disc thickness is 2 ~ 10cm, and dish spacing is 2 ~ 10cm.Above-mentioned plate-like high-voltage connection terminal 1, noninductive high-voltage resistor 10, bolt 3, conductive plate 4, discoid signal terminal 5, noninductive low voltage resistor 6, U-shaped dish 9 and ground terminal 7 are coated with the insulator 2 of the fairlead 8 of band signal line.
During use, only need first in the Standard resistance range of the above-mentioned noninductive high-voltage resistor 10 that preferably set and noninductive low voltage resistor 6, and selected respective concrete numerical value in each parameter area of conductive plate 4, between the corresponding phase and ground again plate-like high-voltage connection terminal 1 of the present invention and ground terminal 7 being connected across electric system, and be electrically connected with discoid signal terminal 5 after signal wire being passed fairlead 8.With reference to Fig. 1, as the present invention can be implemented by example as follows:
Embodiment 1
When to be applied to electric pressure be 6kV, the resistance of noninductive high-voltage resistor 10 is 10M Ω, and the resistance of noninductive low voltage resistor 6 is 100K Ω, and conductive plate 4 is 1, its dish diameter is 5cm, disc thickness is 10cm, and conductive plate 4 is 2cm with the spacing of plate-like high-voltage connection terminal 1.
Embodiment 2
When to be applied to electric pressure be 6kV, the resistance of noninductive high-voltage resistor 10 is 30M Ω, and the resistance of noninductive low voltage resistor 6 is 70K Ω, and conductive plate 4 is 2, and its dish diameter is 9cm, disc thickness is 8cm, and dish spacing is 4cm.
Embodiment 3
When to be applied to electric pressure be 10kV, the resistance of noninductive high-voltage resistor 10 is 50M Ω, and the resistance of noninductive low voltage resistor 6 is 50K Ω, and conductive plate 4 is 5, and its dish diameter is 13cm, disc thickness is 6cm, and dish spacing is 6cm.
Embodiment 4
When to be applied to electric pressure be 20kV, the resistance of noninductive high-voltage resistor 10 is 70M Ω, and the resistance of noninductive low voltage resistor 6 is 30K Ω, and conductive plate 4 is 8, and its dish diameter is 17cm, disc thickness is 4cm, and dish spacing is 8cm.
Embodiment 5
When to be applied to electric pressure be 35kV, the resistance of noninductive high-voltage resistor 10 is 100M Ω, and the resistance of noninductive low voltage resistor 6 is 10K Ω, and conductive plate 4 is 10, and its dish diameter is 20cm, disc thickness is 2cm, and dish spacing is 10cm.
In above-described embodiment 2 ~ 5, the shape of high-voltage connection terminal also can be non-plate-like, namely when conductive plate 4 is more than 2, to the shape of high-voltage connection terminal without particular/special requirement.
Above embodiment all to carry out the collection of actual voltage signal in electric system, and through the comparison with other multiple acquisition mode methods, it all can export without distortion to the voltage signal of 0 ~ 100MHz wave band.
Obviously, those skilled in the art can carry out various change and modification to wideband voltage signal acquisition device of the present invention and not depart from the spirit and scope of the present invention.Like this, if belong within the scope of the claims in the present invention and equivalent technologies thereof to these amendments of the present invention and modification, then the present invention is also intended to comprise these change and modification.
Claims (6)
1. a wideband voltage signal acquisition device, primarily of electric resistance partial pressure parts composition, is characterized in that:
Described wideband voltage signal acquisition device also comprises electric capacity adjustment member;
Described electric resistance partial pressure parts are made up of the noninductive high-voltage resistor (10) be connected in series and noninductive low voltage resistor (6);
Described electric capacity adjustment member be more than 2, the conductive plate (4) be placed on described noninductive high-voltage resistor (10), the dish diameter of described conductive plate (4) is 5 ~ 20cm, disc thickness is 2 ~ 10cm;
The other end of described noninductive high-voltage resistor (10) is electrically connected with high-voltage connection terminal (1), and described high-voltage connection terminal (1) is 2 ~ 10cm with the spacing of more than 2 conductive plates (4) nearest in conductive plates (4).
2. wideband voltage signal acquisition device according to claim 1, is characterized in that conductive plate (4) is 2 ~ 10, and its dish spacing is 2 ~ 10cm.
3. wideband voltage signal acquisition device according to claim 2, it is characterized in that conductive plate (4) be placed in form noninductive high-voltage resistor (10) 2 ~ 11 resistance between, or it is upper and locate through bolt (3) to be set in noninductive high-voltage resistor (10).
4. wideband voltage signal acquisition device according to claim 3, is characterized in that being equipped with discoid signal terminal (5) between noninductive high-voltage resistor (10) and noninductive low voltage resistor (6).
5. wideband voltage signal acquisition device according to claim 4, is characterized in that the other end of noninductive low voltage resistor (6) is electrically connected with U-shaped dish (9) and ground terminal (7) successively.
6. wideband voltage signal acquisition device according to claim 5, is characterized in that high-voltage connection terminal (1), noninductive high-voltage resistor (10), bolt (3), conductive plate (4), discoid signal terminal (5), noninductive low voltage resistor (6), U-shaped dish (9) and ground terminal (7) are coated with the insulator (2) of band fairlead (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310200265.1A CN103245821B (en) | 2013-05-27 | 2013-05-27 | Wideband voltage signal acquisition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310200265.1A CN103245821B (en) | 2013-05-27 | 2013-05-27 | Wideband voltage signal acquisition device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103245821A CN103245821A (en) | 2013-08-14 |
| CN103245821B true CN103245821B (en) | 2015-07-01 |
Family
ID=48925468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310200265.1A Active CN103245821B (en) | 2013-05-27 | 2013-05-27 | Wideband voltage signal acquisition device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103245821B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558435A (en) * | 2013-11-04 | 2014-02-05 | 国网上海市电力公司 | 35kV broadband electronic type voltage transformer |
| CN113960355A (en) * | 2021-10-21 | 2022-01-21 | 国网江苏省电力有限公司电力科学研究院 | Broadband voltage monitoring device based on non-contact sensor |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1731195A (en) * | 2005-08-31 | 2006-02-08 | 东南大学 | High-voltage pulse resistance voltage divider |
| JP3922522B2 (en) * | 2001-08-16 | 2007-05-30 | 東光電気株式会社 | Voltage transformer |
| CN101074972A (en) * | 2006-05-15 | 2007-11-21 | 北京瑞恒超高压电器研究所 | Capacitance mask resistance sensor |
| JP4100035B2 (en) * | 2002-05-07 | 2008-06-11 | 株式会社明電舎 | Switch breaker test voltage divider for arc voltage measurement |
| CN101458277A (en) * | 2009-01-13 | 2009-06-17 | 中国计量科学研究院 | Three phase electric energy measurement apparatus |
| CN201355371Y (en) * | 2009-02-20 | 2009-12-02 | 国网电力科学研究院 | Impulse voltage divider |
| CN101762733A (en) * | 2010-01-08 | 2010-06-30 | 中国电力科学研究院 | Design method of high-impedance broadband high-voltage voltage divider |
| CN101901681A (en) * | 2009-05-26 | 2010-12-01 | 廊坊高山电子科技有限公司 | 10 kV passive electronic voltage transformer |
| CN102169132A (en) * | 2011-04-02 | 2011-08-31 | 烟台东方威思顿电气有限公司 | High-impedance high-temperature stability high-voltage bleeder |
| DE102010038851A1 (en) * | 2010-08-03 | 2012-02-09 | Lisa Dräxlmaier GmbH | Electrical detector for detecting high voltages in high voltage transmission system of electrical operable vehicle e.g. hybrid electric car, has potential divider including high and low impedance resistor portions on substrate |
| EP2492697A1 (en) * | 2011-02-25 | 2012-08-29 | Abb Ag | Resistive voltage divider with improved phase accuracy |
| CN203287420U (en) * | 2013-05-27 | 2013-11-13 | 安徽一天电气技术有限公司 | Broadband voltage signal acquisition apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59138960A (en) * | 1983-01-31 | 1984-08-09 | Toshiba Corp | Voltage divider |
-
2013
- 2013-05-27 CN CN201310200265.1A patent/CN103245821B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3922522B2 (en) * | 2001-08-16 | 2007-05-30 | 東光電気株式会社 | Voltage transformer |
| JP4100035B2 (en) * | 2002-05-07 | 2008-06-11 | 株式会社明電舎 | Switch breaker test voltage divider for arc voltage measurement |
| CN1731195A (en) * | 2005-08-31 | 2006-02-08 | 东南大学 | High-voltage pulse resistance voltage divider |
| CN101074972A (en) * | 2006-05-15 | 2007-11-21 | 北京瑞恒超高压电器研究所 | Capacitance mask resistance sensor |
| CN101458277A (en) * | 2009-01-13 | 2009-06-17 | 中国计量科学研究院 | Three phase electric energy measurement apparatus |
| CN201355371Y (en) * | 2009-02-20 | 2009-12-02 | 国网电力科学研究院 | Impulse voltage divider |
| CN101901681A (en) * | 2009-05-26 | 2010-12-01 | 廊坊高山电子科技有限公司 | 10 kV passive electronic voltage transformer |
| CN101762733A (en) * | 2010-01-08 | 2010-06-30 | 中国电力科学研究院 | Design method of high-impedance broadband high-voltage voltage divider |
| DE102010038851A1 (en) * | 2010-08-03 | 2012-02-09 | Lisa Dräxlmaier GmbH | Electrical detector for detecting high voltages in high voltage transmission system of electrical operable vehicle e.g. hybrid electric car, has potential divider including high and low impedance resistor portions on substrate |
| EP2492697A1 (en) * | 2011-02-25 | 2012-08-29 | Abb Ag | Resistive voltage divider with improved phase accuracy |
| CN102169132A (en) * | 2011-04-02 | 2011-08-31 | 烟台东方威思顿电气有限公司 | High-impedance high-temperature stability high-voltage bleeder |
| CN203287420U (en) * | 2013-05-27 | 2013-11-13 | 安徽一天电气技术有限公司 | Broadband voltage signal acquisition apparatus |
Non-Patent Citations (1)
| Title |
|---|
| 基于电阻分压原理的电子式电压互感器研究;王佳颖;《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑》;20070915(第03期);第22-57页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103245821A (en) | 2013-08-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Dai et al. | A pilot protection for HVDC transmission lines based on transient energy ratio of DC filter link | |
| CN203519681U (en) | Pulse oscillation test apparatus for interturn insulation detection of dry-type air-core reactor | |
| CN106154118B (en) | Power distribution network single-phase earth fault line selection and positioning device and method | |
| CN104502819A (en) | Arrester impact characteristics testing device and method | |
| CN103675624B (en) | A kind of spark gap working-frequency voltage test device and test method | |
| CN103344821A (en) | Transient overvoltage on-line monitoring system based on CVT and provided with built-in low-voltage capacitor | |
| CN110297121A (en) | A kind of capacitive divider low pressure measurement circuit and measurement method | |
| CN103245821B (en) | Wideband voltage signal acquisition device | |
| CN203798966U (en) | Impact voltage-withstanding test system used for high-voltage electrical equipment insulation test | |
| CN203405538U (en) | Partial discharge test system for cable | |
| CN103560514A (en) | Reactive power compensation and harmonic treatment system | |
| CN203287420U (en) | Broadband voltage signal acquisition apparatus | |
| CN103149518A (en) | Partial discharge test circuit | |
| CN205961075U (en) | Square wave voltage generator | |
| CN204439784U (en) | A kind of voltage traveling wave sensor | |
| CN204405728U (en) | A kind of arrester discharge counter | |
| CN207882327U (en) | A kind of network voltage full frequency-domain monitoring device based on wideband wide range CT | |
| CN208092189U (en) | Compound field based on superfrequency method couples paper oil insulation partial discharge detecting system | |
| CN203149025U (en) | Transient overvoltage monitoring system | |
| Forti et al. | Power-line impedance and the origin of the low-frequency oscillatory transients | |
| CN102721911B (en) | Method and system for impulse withstand voltage test of transformer | |
| CN103048513A (en) | Self-insurance wide-frequency voltage signal collecting device | |
| CN106646051B (en) | Lightning arrester testing device and method | |
| CN105092947A (en) | Three-phase circuit overvoltage monitoring system and method thereof | |
| CN202275105U (en) | Self-security broadband voltage signal acquisition device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Yonghe Road, high tech Development Zone, Hefei city of Anhui Province, No. 99 230031 Patentee after: Anhui electric technology Limited by Share Ltd Address before: Yonghe Road, high tech Development Zone, Hefei city of Anhui Province, No. 99 230031 Patentee before: Anhui Yitian Electrical Technology Co., Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20170524 Address after: 230088 No. 99 Yonghe Road, hi tech Development Zone, Anhui, Hefei Co-patentee after: Anhui Xinli Electrical Equipment Co., Ltd. Patentee after: Anhui electric technology Limited by Share Ltd Address before: Yonghe Road, high tech Development Zone, Hefei city of Anhui Province, No. 99 230031 Patentee before: Anhui electric technology Limited by Share Ltd |
|
| TR01 | Transfer of patent right | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Jing Inventor after: Cheng Dengfeng Inventor after: Rui Jun Inventor after: Tang Chunlin Inventor before: Rui Jun Inventor before: Tang Chunlin |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180419 Address after: 230000 Hefei economic and Technological Development Zone, Anhui, No. 299 Ziyun Road Co-patentee after: Anhui electric technology Limited by Share Ltd Patentee after: Power Science Research Institute of Anhui Electric Power Co., Ltd. Co-patentee after: Anhui Xinli Electrical Equipment Co., Ltd. Address before: 230088 No. 99 Yonghe Road, hi tech Development Zone, Anhui, Hefei Co-patentee before: Anhui Xinli Electrical Equipment Co., Ltd. Patentee before: Anhui electric technology Limited by Share Ltd |
|
| TR01 | Transfer of patent right |