CN103592497A - Broadband voltage collector - Google Patents
Broadband voltage collector Download PDFInfo
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- CN103592497A CN103592497A CN201310560702.0A CN201310560702A CN103592497A CN 103592497 A CN103592497 A CN 103592497A CN 201310560702 A CN201310560702 A CN 201310560702A CN 103592497 A CN103592497 A CN 103592497A
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- voltage
- current sensor
- collector
- zinc
- magnetic flux
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Abstract
The invention discloses a broadband voltage collector which is an isolation type voltage transformer composed of a zinc oxide lightning arrester (1) having a nonlinearity voltage current characteristic, a zero-magnetic-flux current sensor (2), a Rogowski coil (3) and a current-voltage conversion unit (4). The zero-magnetic-flux current sensor (2) and the Rogowski coil (3) are respectively arranged on the zinc oxide lightning arrester (1) in a sleeved mode and are respectively and electrically connected with the current-voltage conversion unit (4). The broadband voltage collector is used for detecting voltage signals of a system bus so that normal operation of a system can be achieved and the transient overvoltage condition and the like can be collected, and meanwhile the accuracy of the voltage signals is guaranteed.
Description
Technical field
The present invention relates to electric variable measurement technical field, be specifically related to a kind of sensor of measurement voltage signal.
Background technology
In power industry, often to gather voltage signal, particularly in electric power protection industry, often can when can gathering conventional power-frequency voltage signal, also want to gather high-frequency voltage signal, extensive application along with electronic type voltage transformer, collection for high-frequency voltage signal has had larger progress, but the fuse of common voltage mutual inductor is thoughts fuse, therefore when gathering voltage signal, often there is measuring error, and resitstance voltage divider in common Resistive Voltage Transformer is owing to there being the reason of distributed capacitance, when gathering the high-frequency voltage signal of picture thunderbolt one class, usually can cause because of the existence of distributed capacitance the signal attenuation distortion gathering, moreover, in considerable application scenario, there is no unnecessary space and position installation collector.
Summary of the invention
According to the problem existing in prior art and practical application, the invention provides a kind of wideband voltage collector, it shares the position that Zinc-Oxide Arrester is installed, can solve installation footprint position problems and can realize again effective collection of described wideband voltage collector, thereby described wideband voltage collector can effectively solve the collection distortion of current existing collector and limited problem is installed.
The present invention realizes like this, a kind of wideband voltage collector, it is served as reasons and has the isolated voltage transformer (VT) that the Zinc-Oxide Arrester (1) of non-linear volt-ampere characteristic, zero magnetic flux current sensor (2), Roche (Rogowski) coil (3) and current/voltage converting unit (4) form, and described zero magnetic flux current sensor (2), described Luo-coil (3) are set on respectively described Zinc-Oxide Arrester (1) above and are electrically connected with described current/voltage converting unit (4) respectively.
As the further improvement of such scheme, described zero magnetic flux current sensor (2) being set on described Zinc-Oxide Arrester (1) keeps space independent with described Luo-coil (3) in position.
As the further improvement of such scheme, described zero magnetic flux current sensor (2) adopts permalloy as iron core.
Wideband voltage collector of the present invention, its Zinc-Oxide Arrester is to have good non-linear volt-ampere characteristic; Zero magnetic flux current sensor and Luo-coil are set on respectively on Zinc-Oxide Arrester, by current/voltage converting unit, the current signal of zero magnetic flux current sensor and Luo-coil is converted to the voltage signal of Zinc-Oxide Arrester, the voltage signal of Zinc-Oxide Arrester is the voltage signal of system busbar, adopt the voltage signal of detection system bus of the present invention, can realize the normally collection of the various situations such as operation and generation transient overvoltage of system, guarantee the accuracy of voltage signal acquisition.
Accompanying drawing explanation
Fig. 1 is the structural representation of the concrete enforcement of a kind of wideband voltage collector of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Figure 1 shows that the structured flowchart of a kind of Novel broadband voltage collector in the present embodiment, described wideband voltage collector is a kind of isolated voltage transformer (VT) being comprised of Zinc-Oxide Arrester 1, zero magnetic flux current sensor 2, Roche (Rogowski) coil 3 and current/voltage converting unit 4.
Zero magnetic flux current sensor 2, Luo-coil 3 are set on respectively on Zinc-Oxide Arrester 1 and respectively and are electrically connected with current/voltage converting unit 4.Current/voltage converting unit 4 receives respectively the current signal from zero magnetic flux current sensor 2, Luo-coil 3, and be converted to thus the voltage signal of Zinc-Oxide Arrester 1, because hi-line is directly received on Zinc-Oxide Arrester 1, thereby the voltage signal of Zinc-Oxide Arrester 1 is namely provided with the voltage signal (voltage signal that described wideband voltage collector is measured bus is installed) of the system busbar of described wideband voltage collector, thereby by the voltage signal of indirect collection Zinc-Oxide Arrester 1, obtain the voltage signal of system.Described Zinc-Oxide Arrester 1 is for having good non-linear volt-ampere characteristic; Zero magnetic flux current sensor 2 is for using initial permeability high, and the little permalloy of loss is as iron core and adopt negative-feedback technology to develop, and has guaranteed the precision of signals collecting; Luo-coil 3 is realized real-time Super-Current Measurement and can be unsaturated, and can guarantee to capture various wideband current signals; 4 conversions that complete current signal and voltage signal by the transitive relation between electric current and voltage of current/voltage converting unit, thereby the collection of the various situations such as the normal operation of the system that realizes and generation transient overvoltage.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (3)
1. a wideband voltage collector, it is characterized in that: it is served as reasons and has the isolated voltage transformer (VT) that the Zinc-Oxide Arrester (1) of non-linear volt-ampere characteristic, zero magnetic flux current sensor (2), Roche (Rogowski) coil (3) and current/voltage converting unit (4) form, and described zero magnetic flux current sensor (2), described Luo-coil (3) are set on respectively described Zinc-Oxide Arrester (1) above and are electrically connected with described current/voltage converting unit (4) respectively.
2. wideband voltage collector as claimed in claim 1, is characterized in that: described zero magnetic flux current sensor (2) being set on described Zinc-Oxide Arrester (1) keeps space independent with described Luo-coil (3) in position.
3. wideband voltage collector as claimed in claim 1, is characterized in that: described zero magnetic flux current sensor (2) adopts permalloy as iron core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310560702.0A CN103592497A (en) | 2013-11-12 | 2013-11-12 | Broadband voltage collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310560702.0A CN103592497A (en) | 2013-11-12 | 2013-11-12 | Broadband voltage collector |
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| CN103592497A true CN103592497A (en) | 2014-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201310560702.0A Pending CN103592497A (en) | 2013-11-12 | 2013-11-12 | Broadband voltage collector |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104076193A (en) * | 2014-04-12 | 2014-10-01 | 国家电网公司 | Overvoltage collecting device based on zinc oxide varistor |
| CN104833841A (en) * | 2015-05-06 | 2015-08-12 | 国家电网公司 | Substation intrusion overvoltage detection method |
| CN110456123A (en) * | 2019-08-05 | 2019-11-15 | 中国电力科学研究院有限公司 | A kind of wideband transient voltage partial pressure measuring apparatus and method |
| CN111198297A (en) * | 2018-11-20 | 2020-05-26 | 许继集团有限公司 | Signal acquisition device based on Rogowski coil and zero-flux current sensor |
| CN111198298A (en) * | 2018-11-20 | 2020-05-26 | 许继集团有限公司 | Data acquisition device suitable for multiple current sensor |
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| CN200976024Y (en) * | 2006-12-05 | 2007-11-14 | 淄博计保互感器研究所 | Current method high-voltage voltage sensor |
| CN101726675A (en) * | 2008-10-28 | 2010-06-09 | 武汉华瑞测控科技有限公司 | Method for performing live-line evaluation on online insulation monitoring system of substation |
| CN102288850A (en) * | 2011-07-11 | 2011-12-21 | 广东电网公司电力科学研究院 | Zinc oxide arrester monitoring device |
| CN102901873A (en) * | 2012-10-24 | 2013-01-30 | 广州长川科技有限公司 | Device for measuring resistive current fundamental component of zinc oxide arrester |
| CN103308753A (en) * | 2013-05-16 | 2013-09-18 | 国家电网公司 | On-line overvoltage monitoring system based on switching surge current of lightning arrester |
| CN203551641U (en) * | 2013-11-12 | 2014-04-16 | 安徽一天电气技术有限公司 | Broadband voltage collector |
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2013
- 2013-11-12 CN CN201310560702.0A patent/CN103592497A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200976024Y (en) * | 2006-12-05 | 2007-11-14 | 淄博计保互感器研究所 | Current method high-voltage voltage sensor |
| CN101726675A (en) * | 2008-10-28 | 2010-06-09 | 武汉华瑞测控科技有限公司 | Method for performing live-line evaluation on online insulation monitoring system of substation |
| CN102288850A (en) * | 2011-07-11 | 2011-12-21 | 广东电网公司电力科学研究院 | Zinc oxide arrester monitoring device |
| CN102901873A (en) * | 2012-10-24 | 2013-01-30 | 广州长川科技有限公司 | Device for measuring resistive current fundamental component of zinc oxide arrester |
| CN103308753A (en) * | 2013-05-16 | 2013-09-18 | 国家电网公司 | On-line overvoltage monitoring system based on switching surge current of lightning arrester |
| CN203551641U (en) * | 2013-11-12 | 2014-04-16 | 安徽一天电气技术有限公司 | Broadband voltage collector |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104076193A (en) * | 2014-04-12 | 2014-10-01 | 国家电网公司 | Overvoltage collecting device based on zinc oxide varistor |
| CN104833841A (en) * | 2015-05-06 | 2015-08-12 | 国家电网公司 | Substation intrusion overvoltage detection method |
| CN111198297A (en) * | 2018-11-20 | 2020-05-26 | 许继集团有限公司 | Signal acquisition device based on Rogowski coil and zero-flux current sensor |
| CN111198298A (en) * | 2018-11-20 | 2020-05-26 | 许继集团有限公司 | Data acquisition device suitable for multiple current sensor |
| CN110456123A (en) * | 2019-08-05 | 2019-11-15 | 中国电力科学研究院有限公司 | A kind of wideband transient voltage partial pressure measuring apparatus and method |
| CN110456123B (en) * | 2019-08-05 | 2022-09-20 | 中国电力科学研究院有限公司 | Broadband transient voltage division measuring device and method |
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Address after: 230001 No. 99 Yonghe Road, hi tech Zone, Anhui, Hefei Applicant after: Anhui electric technology Limited by Share Ltd Address before: 230001 No. 99 Yonghe Road, hi tech Zone, Anhui, Hefei Applicant before: Anhui Yitian Electrical Technology Co., Ltd. |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140219 |
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| WD01 | Invention patent application deemed withdrawn after publication |