CN107064590B - A kind of Portable dry capacitive divider - Google Patents
A kind of Portable dry capacitive divider Download PDFInfo
- Publication number
- CN107064590B CN107064590B CN201611208797.XA CN201611208797A CN107064590B CN 107064590 B CN107064590 B CN 107064590B CN 201611208797 A CN201611208797 A CN 201611208797A CN 107064590 B CN107064590 B CN 107064590B
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- CN
- China
- Prior art keywords
- outer cylinder
- shielding outer
- pressure stage
- inductance loop
- stick
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- 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
- G01R15/04—Voltage dividers
- G01R15/06—Voltage dividers having reactive components, e.g. capacitive transformer
Abstract
The invention discloses a kind of Portable dry capacitive dividers, comprising: shielding outer cylinder which is provided with sensing hole and bnc interface；High-pressure stage stick, setting shield in shielding outer cylinder and are filled with epoxy resin cylinder between outer cylinder and high-pressure stage stick；Inductance loop, setting is outside shielding outer cylinder；Insulation strip, setting is between inductance loop and shielding outer cylinder；Compensating electric capacity, both ends are coupled with inductance loop and shielding outer cylinder；Build-out resistor, both ends are coupled with inductance loop and bnc interface, structure is simple, volume is light and small, easy to carry, quick for installation and intrinsic standoff ratio can be with flexible modulation to adapt to high voltage pulse demand for measuring when being less than 100kV.
Description
Technical field
The invention belongs to high voltage pulse power electronics field more particularly to a kind of Portable dry capacitive dividers, special
The measurement of 100kV high voltage pulse Shi Yongyu be less than.
Background technique
As the continuous development of high voltage pulse power electronic technology is widely used to medical accelerator, industrial accelerator, thunder
Up to transmitter, synchrotron radiation light source, study of high energy physics, life science, bio-pharmaceuticals, artificial nuclear reaction technology and peace
On the high voltage pulse powers electronic equipments such as inspection, flaw detection.
In the implementation of the present invention, the inventor finds that the existing technology has at least the following problems:
Since the pulse voltage of high voltage pulse power electronics is higher, need to be monitored on-line for high voltage pulse,
Usually high voltage pulse is monitored on-line with capacitive divider, reduces capacitor point when high voltage pulse reaches 100kV or more
The volume of depressor needs to be carried out the measurement of high voltage pulse with oil immersed type or the sealed capacitive divider of insulating gas.Due to oil immersed type
Or the sealed capacitive divider of insulating gas needs the shell that one seals in design and is sealed design, works as high voltage pulse
When less than 100kV, is measured, will cause shared by capacitive divider using oil immersed type or the sealed capacitive divider of insulating gas
The large percentage of whole equipment volume and weight, production cost are higher, it has not been convenient to Fast Installation and carrying, and influence integral high pressure
Pulse power electronics Miniaturization Design.
Summary of the invention
That technical problem to be solved by the invention is to provide a kind of structures is simple, volume is light and small, easy to carry, quick for installation
And intrinsic standoff ratio can adapt to the Portable dry capacitance partial pressure for the demand that high voltage pulse is measured when being less than 100kV with flexible modulation
Device.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is that: a kind of Portable dry capacitive divider,
It includes
Outer cylinder is shielded, which is provided with sensing hole and bnc interface；
High-pressure stage stick is arranged in the shielding outer cylinder, and asphalt mixtures modified by epoxy resin is filled between the shielding outer cylinder and high-pressure stage stick
Rouge cylinder；
Inductance loop is arranged outside the shielding outer cylinder；
Insulation strip, setting is between the inductance loop and shielding outer cylinder；
Compensating electric capacity, both ends are coupled with inductance loop and shielding outer cylinder；
Build-out resistor, both ends are coupled with inductance loop and bnc interface.
The high-pressure stage stick is shaped using red copper bar, and the center of shielding outer cylinder, high-pressure stage stick one end is arranged in
It is another to be equipped with hemispherical dome structure equipped with Equalized voltage ring construction；The grading ring of high-pressure stage stick barred body below is poured in epoxy resin cylinder
Center.
The shielding outer cylinder is cylindrical structure, and surface is equipped with sensing hole and bnc interface.
After the high-pressure stage stick and shielding outer cylinder utilize perfusion mold center's positioned in alignment, by vacuum perfusion process in height
Press infusion epoxy resin between pole stick and shielding outer cylinder；The grading ring of the correspondence high-pressure stage stick of epoxy resin cylinder to shielding outer cylinder it
Between part surface be equipped with climb electric slot.
The inductance loop is mounted on position corresponding with sensing hole on shielding outer cylinder, by adjusting the position of inductance loop to reach
Finely tune the effect of intrinsic standoff ratio.
Achieve the effect that adjust intrinsic standoff ratio by adjusting the size of compensating electric capacity.
A technical solution in above-mentioned technical proposal has the following advantages that or beneficial effect, not only solves and uses oil immersed type
And/or the sealed capacitive divider of insulating gas is bulky, heavy, structure is complicated, produces assembly difficulty, inconvenient to use etc.
Problem, additionally it is possible to reduce production cost, improve production efficiency.Creating for high voltage pulse power electronics Miniaturization Design must
The condition wanted.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the Portable dry capacitive divider provided in the embodiment of the present invention；
Fig. 2 is the circuit diagram of the Portable dry capacitive divider of Fig. 1；
Fig. 3 is the structural schematic diagram of the high voltage electrode bar of the Portable dry capacitive divider of Fig. 1；
Fig. 4 is the structural schematic diagram of the shielding outer cylinder of the Portable dry capacitive divider of Fig. 1；
Fig. 5 is the structural schematic diagram of the Portable dry capacitive divider of Fig. 1；
Label in above-mentioned figure is equal are as follows: 1, high voltage electrode bar, 2, epoxy resin cylinder, and 3, shielding outer cylinder, 4, inductance loop, 5,
Bnc interface, 6, insulation strip, 7, compensating electric capacity, 8, build-out resistor.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
Referring to Fig. 1-5, a kind of Portable dry capacitive divider, comprising:
Outer cylinder is shielded, which is provided with sensing hole and bnc interface；
High-pressure stage stick, setting shield in shielding outer cylinder and are filled with epoxy resin cylinder between outer cylinder and high-pressure stage stick；High pressure
Electrode bar is cylindrical structure, and one end is equipped with grading ring, and the other end is equipped with hemispherical dome structure, grading ring barred body encapsulating below
In the center of epoxy resin.
Inductance loop, setting is outside shielding outer cylinder；
Insulation strip, setting guarantee to be dielectrically separated between inductance loop and shielding outer cylinder between inductance loop and shielding outer cylinder；
Compensating electric capacity, both ends are coupled with inductance loop and shielding outer cylinder；Compensating electric capacity is Low Drift Temperature capacitor, is connect in inductance loop
On shielding outer cylinder, the intrinsic standoff ratio of divider is adjusted by adjusting the size of compensating electric capacity.
Build-out resistor, both ends are coupled with inductance loop and bnc interface.
Bleeder circuit schematic diagram is that the inductance capacitance between high voltage electrode bar and inductance loop is C1；Inductance loop and shielding outer cylinder
Between inductance capacitance be C2, external compensating electric capacity be C3, connect inductance loop and shielding outer cylinder between；Build-out resistor is R1, is connect
Between inductance loop and the core of BNC connector.
High-pressure stage stick is shaped using red copper bar, the center of shielding outer cylinder is arranged in, high-pressure stage stick one end is equipped with
Equalized voltage ring construction guarantees that high voltage input terminal will not generate ionization phenomena with air, another to be equipped with hemispherical dome structure, guarantees high-pressure stage
Stick surface field is more uniform；The grading ring of high-pressure stage stick barred body below is poured in the center of epoxy resin cylinder.
Shielding outer cylinder is cylindrical structure, and preventing electric field from interfering with each other keeps internal electric field more uniform, with red copper material plus
Work welding forming, surface are equipped with sensing hole and bnc interface.
After high-pressure stage stick and shielding outer cylinder utilize perfusion mold center's positioned in alignment, by vacuum perfusion process in high-pressure stage
Infusion epoxy resin between stick and shielding outer cylinder；The grading ring of the correspondence high-pressure stage stick of epoxy resin cylinder is between shielding outer cylinder
Partial surface is equipped with and climbs electric slot.In order to improve dielectric strength, high voltage electrode bar grading ring to shielding outer cylinder between
Epoxy resin surface is equipped with and climbs electric slot.
Inductance loop is mounted on position corresponding with sensing hole on shielding outer cylinder, by adjusting the position of inductance loop to reach fine tuning point
The effect of pressure ratio.Inductance loop is shaped using red copper material.
Achieve the effect that adjust intrinsic standoff ratio by adjusting the size of compensating electric capacity.
The divider is mainly used for measurement of the high voltage pulse less than 100kV and uses epoxy resin composition using dry construction
Perfusion forming, and epoxy resin surface is equipped with and climbs electric slot, does not need shell and is sealed, small volume is convenient for carrying, and performance is steady
Determine, produce and process at low cost, installation quickly, provides necessary condition for high voltage pulse power electronics Miniaturization Design.
1, its intrinsic standoff ratio can adapt to the measurement of the different pulse voltages of 100kV or less with flexible modulation；2, inside divider
Using epoxide resin vacuum instillation process, tradition is eliminated as the sealing of the shell of oil-immersed type or the sealed divider of insulating gas is set
Meter makes the application environment of divider more extensively (such as may be used on aerospace field), production cost is lower, performance stabilization can
It leans on；3, since the structure of this divider is simple, volume is more light and small, and installation or carrying are more convenient, is high voltage pulse power electricity
Son equipment Miniaturization Design provides necessary condition.
After above-mentioned scheme, not only solve huge with oil immersed type and/or the sealed capacitive divider volume of insulating gas
Greatly, heavy, structure is complicated, production assembly difficulty, it is inconvenient to use the problems such as, additionally it is possible to reduce production cost, improve production effect
Rate.Necessary condition is created for high voltage pulse power electronics Miniaturization Design.
The present invention is exemplarily described above in conjunction with attached drawing, it is clear that the present invention implements not by aforesaid way
Limitation, as long as the improvement for the various unsubstantialities that the inventive concept and technical scheme of the present invention carry out is used, or without changing
It is within the scope of the present invention into the conception and technical scheme of the invention are directly applied to other occasions.
Claims (5)
1. a kind of Portable dry capacitive divider comprising:
Outer cylinder is shielded, which is provided with sensing hole and bnc interface；
High-pressure stage stick is arranged in the shielding outer cylinder, and epoxy resin cylinder is filled between the shielding outer cylinder and high-pressure stage stick；
Inductance loop is arranged outside the shielding outer cylinder；
Insulation strip, setting is between the inductance loop and shielding outer cylinder；
Compensating electric capacity, both ends are coupled with inductance loop and shielding outer cylinder；
Build-out resistor, both ends are coupled with inductance loop and bnc interface；
After the high-pressure stage stick and shielding outer cylinder utilize perfusion mold center's positioned in alignment, by vacuum perfusion process in high-pressure stage
Infusion epoxy resin between stick and shielding outer cylinder；The grading ring of the correspondence high-pressure stage stick of epoxy resin cylinder is between shielding outer cylinder
Partial surface is equipped with and climbs electric slot.
2. Portable dry capacitive divider as described in claim 1, which is characterized in that the high-pressure stage stick is added using red copper bar
The center of shielding outer cylinder is arranged in work forming, and high-pressure stage stick one end is equipped with Equalized voltage ring construction, and the other end is equipped with hemispherical
Structure；The grading ring of high-pressure stage stick barred body below is poured in the center of epoxy resin cylinder.
3. Portable dry capacitive divider as claimed in claim 2, which is characterized in that the shielding outer cylinder is drum type brake knot
Structure, surface are equipped with sensing hole and bnc interface.
4. Portable dry capacitive divider as claimed in claim 3, which is characterized in that the inductance loop is mounted on and shields
The corresponding position of sensing hole on outer cylinder, by adjusting the position of inductance loop to achieve the effect that finely tune intrinsic standoff ratio.
5. Portable dry capacitive divider as claimed in claim 4, which is characterized in that reached by adjusting the size of compensating electric capacity
To the effect for adjusting intrinsic standoff ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611208797.XA CN107064590B (en) | 2016-12-23 | 2016-12-23 | A kind of Portable dry capacitive divider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611208797.XA CN107064590B (en) | 2016-12-23 | 2016-12-23 | A kind of Portable dry capacitive divider |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107064590A CN107064590A (en) | 2017-08-18 |
| CN107064590B true CN107064590B (en) | 2019-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611208797.XA Active CN107064590B (en) | 2016-12-23 | 2016-12-23 | A kind of Portable dry capacitive divider |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108957084B (en) * | 2018-06-29 | 2022-03-04 | 中国电力科学研究院有限公司 | High-stability multi-transformation-ratio capacitive voltage divider device |
| CN115494281A (en) * | 2022-09-19 | 2022-12-20 | 芜湖麦可威电磁科技有限公司 | Wireless induction type capacitive voltage divider |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202433431U (en) * | 2011-12-16 | 2012-09-12 | 芜湖国睿兆伏电子股份有限公司 | Capacitive voltage divider |
| CN103235166A (en) * | 2013-04-17 | 2013-08-07 | 清华大学 | Hand-hole type capacitive voltage divider |
| CN204228795U (en) * | 2014-11-20 | 2015-03-25 | 国家电网公司 | A kind of compact broadband capacitive divider measured for square-wave voltage |
-
2016
- 2016-12-23 CN CN201611208797.XA patent/CN107064590B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202433431U (en) * | 2011-12-16 | 2012-09-12 | 芜湖国睿兆伏电子股份有限公司 | Capacitive voltage divider |
| CN103235166A (en) * | 2013-04-17 | 2013-08-07 | 清华大学 | Hand-hole type capacitive voltage divider |
| CN204228795U (en) * | 2014-11-20 | 2015-03-25 | 国家电网公司 | A kind of compact broadband capacitive divider measured for square-wave voltage |
Non-Patent Citations (1)
| Title |
|---|
| 一种电容补偿型高压电容分压器的设计;高景明 等;《高电压技术》;20070630;第33卷(第6期);第76-79页 |
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| CN107064590A (en) | 2017-08-18 |
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