CN109975593A - Capacitance partial pressure induction type electronic type voltage transformer - Google Patents
Capacitance partial pressure induction type electronic type voltage transformer Download PDFInfo
- Publication number
- CN109975593A CN109975593A CN201910349291.8A CN201910349291A CN109975593A CN 109975593 A CN109975593 A CN 109975593A CN 201910349291 A CN201910349291 A CN 201910349291A CN 109975593 A CN109975593 A CN 109975593A
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- China
- Prior art keywords
- partial pressure
- capacitance partial
- insulation crust
- wiring board
- voltage
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- 230000006698 induction Effects 0.000 title claims abstract description 14
- 238000009413 insulation Methods 0.000 claims abstract description 24
- 239000004593 Epoxy Substances 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 description 7
- 230000005684 electric field Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
Abstract
The invention discloses capacitance partial pressure induction type electronic type voltage transformers, voltage transformer includes insulation crust, capacitance partial pressure module and wiring board, the upper end of the insulation crust is equipped with high pressure access port, the bottom end of the insulation crust is equipped with low-voltage output outlet, the capacitance partial pressure module and wiring board are mounted in insulation crust, the wiring board is connected with high pressure access port, the capacitance partial pressure module is connected with low-voltage output outlet, the present apparatus uses non-contact structure, so that external electrical source does not occur directly to contact with the test side of the present apparatus, reduce a possibility that device is punctured by electric current, and present apparatus compact structure, it can replace existing bulky voltage sensor in the market, and cheap economic cost is saved.
Description
Technical field
The present invention relates to skill voltage measurement art field, specific field is a kind of capacitance partial pressure induction type electronic type voltage mutual inductance
Device.
Background technique
High-tension measurement traditional approach is all based on electromagnetic type induction, and there are many drawbacks in hyperbaric environment.Firstly, being suitable
High-voltage isulation requirement is answered, causes that device volume is big, weight weight, installs and uses inconvenience, insulation system complexity is easy to happen technique and lacks
It falls into, there are security risks.Simultaneously because saturation of magnetic material, magnetic saturation benefit, leakage field etc. influence, measurement error is caused, very
To causing false protection, while analog signal is easy to be disturbed in long distance transmission, while measuring system is made of multistage, makes
Decline at measurement accuracy, typical measuring arrangements are also a kind of obstruction to realization modern digital grid requirements.
Since there are many drawbacks for conventional high-tension measurement, with the development of science and technology, various non-traditional, electronic type electricity
Pressure measurement method enters the scientific research and development stage, and existing electronic sensing device can be divided into two type of partial pressure type and optical profile type
Type.Partial pressure type measurement is generally capacitance partial pressure and two kinds of electric resistance partial pressure, partial pressure type device due to directly being contacted with high-voltage charged body,
There are security risks.Sectional pressure element and by component ageing, the external interferences such as temperature, stability is poor, and interchangeability is poor, it is difficult to realize and produce
Product.Optical profile type structure equally exists the problems such as stability is poor, and interchangeability is poor and price is higher since structure is complicated, it is difficult to real
With change.
Summary of the invention
The purpose of the present invention is to provide a kind of capacitance partial pressure induction type electronic type voltage transformers, to solve above-mentioned background
The problem of being proposed in technology.
To achieve the above object, the invention provides the following technical scheme: capacitance partial pressure induction type electronic type voltage transformer,
Voltage transformer includes insulation crust, capacitance partial pressure module and wiring board, and the upper end of the insulation crust is equipped with high pressure access port,
The bottom end of the insulation crust is equipped with low-voltage output outlet, and the capacitance partial pressure module and wiring board are mounted in insulation crust,
The wiring board is connected with high pressure access port, and the capacitance partial pressure module is connected with low-voltage output outlet.
Preferably, the lower end of the insulation crust is equipped with insulating frame.
Preferably, the insulation crust is epoxy package.
Preferably, the wiring board is epoxy glass fiber material.
Compared with prior art, the beneficial effects of the present invention are: capacitance partial pressure induction type electronic type voltage transformer, this dress
It sets and uses non-contact structure, so that external electrical source does not occur directly to contact with the test side of the present apparatus, reduce device quilt
A possibility that electric current punctures, and present apparatus compact structure, can replace existing bulky voltage sensor, and cost in the market
It is cheap to have saved economic cost.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
In figure: 1- insulation crust, 2- capacitance partial pressure module, 3- wiring board, 4- high pressure access port, 5- low-voltage output outlet, 6-
Insulating frame.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, the present invention provides a kind of technical solution: capacitance partial pressure induction type electronic type voltage transformer, voltage
Mutual inductor includes insulation crust 1, capacitance partial pressure module 2 and wiring board 3, and the upper end of the insulation crust is equipped with high pressure access port 4,
The bottom end of the insulation crust is equipped with low-voltage output outlet 5, and the capacitance partial pressure module and wiring board are mounted in insulation crust,
The wiring board is connected with high pressure access port, and the capacitance partial pressure module is connected with low-voltage output outlet, according to high voltage electric field
Principle, in non-uniform electric field, the lesser conductive surface of radius of curvature forms stronger electric field strength, in the effect of strong electrical field
Under, it will form ionization in the micron-sized place of conductive surface, ionization generates: " transference cell ", the size reflection of " transference cell "
The electrified voltage of conductor, according to this high pressure effect, we can be achieved with the purpose of non-cpntact measurement high voltage, uneven
High voltage electric field in, maximum field intensity expression are as follows:D: electrode distance v: applied voltage r: electricity
Polar radius
, after high pressure access port accesses power supply, wiring board electrification, wiring board electrification generates ionization, the induction of capacitance partial pressure module
The transference cell generated to ionization, since capacitance partial pressure module is connected with low-voltage output outlet, low-voltage output outlet is connected with outside
Voltage collector, so external voltage connector both can detecte the voltage of capacitance partial pressure module, the numerical value after will test
Multiply be exactly in certain proportion high pressure access port access power supply voltage.
Specifically, the lower end of the insulation crust is equipped with insulating frame 6, insulating frame is easily installed the present invention.
Specifically, the insulation crust epoxy package.
Specifically, the wiring board is epoxy glass fiber material.
Working principle: the present invention, external power supply access to high pressure access port, and external detection equipment accesses to low pressure output
Mouthful, internal circuit board surface in electrification generates ionization, after the electric current that capacitance partial pressure module comes out ionization divides
It is detected with the voltage to external power supply.
In the description of the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ",
" fixation " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be machinery
Connection, is also possible to be electrically connected；It can be directly connected, two elements can also be can be indirectly connected through an intermediary
The interaction relationship of internal connection or two elements.It for the ordinary skill in the art, can be with concrete condition
Understand the concrete meaning of above-mentioned term in the present invention.
The standardized element that the present invention uses can commercially, and shaped piece is according to specification and attached drawing note
Load can carry out customized, and the specific connection type of each part is all made of in the prior art mature bolt, rivet, welding etc.
Conventional means, mechanical, part and equipment are all made of in the prior art, conventional model, in addition circuit connection uses the prior art
Middle conventional connection type, this will not be detailed here.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. capacitance partial pressure induction type electronic type voltage transformer, it is characterised in that: voltage transformer includes insulation crust (1), electricity
Hold division module (2) and wiring board (3), the upper end of the insulation crust (1) is equipped with high pressure access port (4), the insulation crust
(1) bottom end is equipped with low-voltage output outlet (5), and the capacitance partial pressure module (2) and wiring board (3) are mounted on insulation crust (1)
Interior, the wiring board (3) is connected with high pressure access port (4), and the capacitance partial pressure module (2) is connected with low-voltage output outlet (5)
It connects.
2. capacitance partial pressure induction type electronic type voltage transformer according to claim 1, it is characterised in that: outside the insulation
The lower end of shell (1) is equipped with insulating frame (6).
3. capacitance partial pressure induction type electronic type voltage transformer according to claim 1, it is characterised in that: outside the insulation
Shell (1) is epoxy package.
4. capacitance partial pressure induction type electronic type voltage transformer according to claim 1, it is characterised in that: the wiring board
It (3) is epoxy glass fiber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910349291.8A CN109975593A (en) | 2019-04-28 | 2019-04-28 | Capacitance partial pressure induction type electronic type voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910349291.8A CN109975593A (en) | 2019-04-28 | 2019-04-28 | Capacitance partial pressure induction type electronic type voltage transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109975593A true CN109975593A (en) | 2019-07-05 |
Family
ID=67086796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910349291.8A Pending CN109975593A (en) | 2019-04-28 | 2019-04-28 | Capacitance partial pressure induction type electronic type voltage transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109975593A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201716359U (en) * | 2010-06-01 | 2011-01-19 | 青岛特锐德电气股份有限公司 | Non-contact electronic type voltage sampling device |
| CN102024555A (en) * | 2009-09-21 | 2011-04-20 | 江苏思源赫兹互感器有限公司 | Electronic voltage transformer |
| CN201820625U (en) * | 2010-10-14 | 2011-05-04 | 珠海威瀚科技发展有限公司 | Electronic voltage transformer |
| 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 |
| CN103558440A (en) * | 2013-10-22 | 2014-02-05 | 江苏靖江互感器厂有限公司 | Intelligent electronic type voltage transformer |
| CN105527478A (en) * | 2014-10-24 | 2016-04-27 | 北京自动化控制设备研究所 | Passive electronic voltage transformer |
| CN206804718U (en) * | 2017-06-05 | 2017-12-26 | 山东帅信电气有限公司 | Solid compound inslation shield type voltage transformer based on coaxial capacitance |
| CN209878856U (en) * | 2019-04-28 | 2019-12-31 | 浙江深华颖智能科技有限公司 | Capacitance voltage division induction type electronic voltage transformer |
-
2019
- 2019-04-28 CN CN201910349291.8A patent/CN109975593A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102024555A (en) * | 2009-09-21 | 2011-04-20 | 江苏思源赫兹互感器有限公司 | Electronic voltage transformer |
| CN201716359U (en) * | 2010-06-01 | 2011-01-19 | 青岛特锐德电气股份有限公司 | Non-contact electronic type voltage sampling device |
| CN201820625U (en) * | 2010-10-14 | 2011-05-04 | 珠海威瀚科技发展有限公司 | Electronic voltage transformer |
| 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 |
| CN103558440A (en) * | 2013-10-22 | 2014-02-05 | 江苏靖江互感器厂有限公司 | Intelligent electronic type voltage transformer |
| CN105527478A (en) * | 2014-10-24 | 2016-04-27 | 北京自动化控制设备研究所 | Passive electronic voltage transformer |
| CN206804718U (en) * | 2017-06-05 | 2017-12-26 | 山东帅信电气有限公司 | Solid compound inslation shield type voltage transformer based on coaxial capacitance |
| CN209878856U (en) * | 2019-04-28 | 2019-12-31 | 浙江深华颖智能科技有限公司 | Capacitance voltage division induction type electronic voltage transformer |
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