CN106199120B - Interpolation type thin-film capacitor voltage divider - Google Patents
Interpolation type thin-film capacitor voltage divider Download PDFInfo
- Publication number
- CN106199120B CN106199120B CN201610460582.0A CN201610460582A CN106199120B CN 106199120 B CN106199120 B CN 106199120B CN 201610460582 A CN201610460582 A CN 201610460582A CN 106199120 B CN106199120 B CN 106199120B
- Authority
- CN
- China
- Prior art keywords
- film capacitor
- connected structure
- capacitor voltage
- voltage divider
- metal foil
- 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.)
- Expired - Fee Related
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 39
- 239000010409 thin film Substances 0.000 title claims abstract description 35
- 229910052751 metal Inorganic materials 0.000 claims abstract description 46
- 239000002184 metal Substances 0.000 claims abstract description 46
- 239000011888 foil Substances 0.000 claims abstract description 45
- 239000011248 coating agent Substances 0.000 claims abstract description 21
- 238000000576 coating method Methods 0.000 claims abstract description 21
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 230000006698 induction Effects 0.000 claims description 4
- 229940058401 polytetrafluoroethylene Drugs 0.000 claims 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims 1
- 239000004810 polytetrafluoroethylene Substances 0.000 claims 1
- 229910000679 solder Inorganic materials 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 11
- 239000011889 copper foil Substances 0.000 description 10
- 230000009975 flexible effect Effects 0.000 description 5
- 239000004020 conductor Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005457 optimization Methods 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 150000003949 imides Chemical class 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
- 238000009827 uniform distribution 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
- G01R15/04—Voltage dividers
- G01R15/06—Voltage dividers having reactive components, e.g. capacitive transformer
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The invention belongs to technical field of pulse power, it is related to a kind of interpolation type thin-film capacitor voltage divider, interpolation type thin-film capacitor voltage divider is made of tetrafluoro bushing (7), connected structure (8), metal foil (9), (10) four part of deielectric-coating.Metal foil (9) surface of divider does not have solder joint, metal foil (9) to be electrically connected by inserting mode realization with end inner core (5).Tetrafluoro bushing (7), connected structure (8), metal foil (9), (10) four part of deielectric-coating are in the order of connection of barrel (3)：Metal foil (9) is pasted on deielectric-coating (10), deielectric-coating (10) is pasted on barrel (3), connected structure (8) bottom end is welded in metal foil (9), tetrafluoro bushing (7) is placed on connected structure (8), and is inserted among the trepanning of barrel (3) together together with connected structure (8).The thin-film capacitor voltage divider of the present invention, eliminates the metal solder joints on divider surface, eliminates the field enhancement effect that metal solder joints are brought, improve the resistance to voltage levels and global reliability of divider.
Description
Technical field
The present invention relates to technical field of pulse power, more particularly to a kind of thin-film capacitor voltage divider.
Background technology
The measuring system of pulse power supply is occupied in the debugging stage and follow-up operation stage of entire pulse power supply
Critical role, it is to assess the Main Basiss of pulse power supply performance to establish correct measuring system.
The measuring system of pulse power supply includes that voltage and current measures two aspects, the conventional means measured to voltage
Divider is mixed including resitstance voltage divider, capacitive divider and capacitance-resistance.Referring to Fig.1, capacitive divider is generally by small one and large one
Two capacitances are connected in series；Bulky capacitor (C2) it is used as low-voltage arm capacitance, copper foil is generally covered by double-faced flexible and (is pressed from both sides among two layers of copper foil
One strata imide membrane) it constitutes, small capacitances (C1) be used as high voltage arm capacitor, generally by wait for geodesic structure high-field electrode and cover copper
Foil is constituted.Referring to Fig. 2, end is generally taken with being electrically connected between copper foil is covered such as under type：End inner core 5 is from cable aperture
It is pierced by, and wears out double-faced flexible and cover copper foil 2, be higher by and cover 1~2mm of copper foil, then copper foil 2 and end inner core 5 will be covered by scolding tin
It is welding as one, solder joint shape is generally the hemispherical of 3~5mm.Since the high voltage arm capacitor of capacitive divider is mainly used for coupling
Voltage on electrical equipment high-field electrode generates electric-field enhancing effect so the presence of solder joint can be considered an electric-field-enhancement structure
It answers, influences the maximum withstanding voltage of divider and the global reliability of divider.
Invention content
Electric-field enhancing when in order to solve the problems, such as that existing capacitive divider is connect with cable connector inner core, the present invention provide one
Kind interpolation type thin-film capacitor voltage divider.
Interpolation type thin-film capacitor voltage divider provided by the present invention, including metal foil, the metal foil are arranged in cylinder
Inner surface is characterized in that：
The capacitive divider further includes connected structure, deielectric-coating and tetrafluoro bushing in addition to metal foil；
The connected structure is located among the trepanning of barrel, and the outer profile of connected structure is divided to two sections of size, the end face of big section
It is welded with metal foil, the segment of the connected structure is made of N number of lobe, and N number of lobe circumferentially arranges, N number of lobe
Be centrally formed the centre bore that can accommodate end inner core, N >=2；
The tetrafluoro bushing is between connected structure and cylinder, for the electric insulation between metal foil and barrel；
The deielectric-coating is used to form thin film capacitor between metal foil and cylinder.
It is the basic structure of the present invention above, is based on the basic structure, the present invention also makes following optimization and limits：
Optimization, connected structure outer profile of the invention is divided to two sections of size, and one section with metal foil welding is connected structure
Big section, the endoporus of the tetrafluoro bushing along bushing include successively axially with big section of matched first endoporus of connected structure, with insert
Matched second endoporus of binding structure reduced diameter section and the matched third endoporus of cable insulation sleeve.The outer profile of connected structure is set
It is calculated as two sections of size, it is therefore an objective to ensure to also help simultaneously with larger contact area when connected structure is welded with metal foil
Fixation of the connected structure in bushing.The outer profile of connected structure is also designed to rounding bench-type, the big disc of round platform and metal
Foil welds, the small disc geared cable head of round platform.
Optimization, the reduced diameter section of connected structure of the invention is provided with opening facing towards the horn mouth of end, is used for
Ensureing being capable of smooth grafting when end inner core and connected structure centre bore decentraction.
Optimization, the quantity of lobe is 4,4 lobe circumference uniform distributions.If lobe is less, it is unfavorable for inserting
Binding structure aid end inner core is unfavorable for the processing of connected structure if lobe is more.Consider, selects lobe
Number be 4.
It advanced optimizes, metal foil of the invention is titanium foil.The reason is that the metallicl work function height and resistance to electronics of titanium material
Bombardment.
It advanced optimizes, bushing of the present invention is tetrafluoro bushing.
It advanced optimizes, deielectric-coating opposing metallic foil surrounding of the invention stays side, 5~10mm of distance.Ensure metal foil
Edge flashing does not occur between barrel.
It advanced optimizes, tetrafluoro Outer Diameter of lining of the invention is less than 0~0.1mm of cylinder internal diameter.Ensure that bushing is more suitable
Profit is inserted among the trepanning of barrel.
Further, the outer diameter of the aperture ratio end inner core of its centre bore of connected structure of the invention it is small by 0~
0.1mm to ensure that connected structure has certain aid power to end inner core, and then ensures that electrical connection is reliable.
Compared with prior art, the present invention advantageous effect is：
(1) capacitive divider of the invention realizes being electrically connected for metal foil and end inner core, elimination using connected structure
Existing metal foil and metal solder joints caused by the welding of end inner core, overcome by the field enhancement effect caused by solder joint,
And then improve the global reliability of divider；
(2) in the present invention, metal foil is electrically connected with end inner core using connected structure, thus divider is with can
The advantages of with repeated disassembled and assembled；
(3) when the material of metal foil is titanium, since the electron work functon of titanium matter is high, so the type divider may be used also
To work in using vacuum, gas as in the environment of insulation mode.
(4) it is that metal foil material can that induction electrode of the invention covers the advantages of copper foil variation is " metal foil " by double-faced flexible
To replace, such as Titanium；And the metal that double-faced flexible covers copper foil is only copper, cannot be replaced.
Description of the drawings
Fig. 1 is the equivalent circuit diagram of general capacitive divider；
Fig. 2 a are the connection structure side view of existing capacitive divider and end；
Fig. 2 b are the connection structure vertical view of existing capacitive divider and end；
Fig. 3 is that interpolation type thin-film capacitor respectively forms modular construction schematic diagram；
Fig. 4 be metal foil, deielectric-coating, connected structure and bushing installation diagram；
Fig. 5 is the installation diagram of metal foil, deielectric-coating, connected structure, bushing on cylinder；
Fig. 6 is the figure that is linked and packed of interpolation type thin-film capacitor voltage divider of the present invention and end；
Fig. 7 is the vertical view of Fig. 6.
Fig. 8 is the interpolation type thin-film capacitor voltage divider applied on a coaxial high pressure vacuum diode.
Wherein reference numeral is：C1High voltage arm capacitor, C2Low-voltage arm capacitance；R- sampling resistors；uiInput voltage；uo-
Output voltage；1- metal solder joints；2- double-faced flexibles cover copper foil；3- barrels；4- end outer walls；5- end inner cores；6- cables
Head insulating bushing；7- tetrafluoro bushings；8- connected structures；9- metal foils；10- deielectric-coating；11- coaxial inner conductors；12- coaxial lines
Outer conductor；13- insulating supportings；14- interpolation type thin-film capacitor voltage dividers.
Specific implementation mode
The shortcomings that in view of prior art thin-film capacitor voltage divider, it is proposed that interpolation type thin-film capacitor voltage divider, basic ideas
That being electrically connected between end and divider is realized by interpolation method, with reference to embodiments, attached drawing to the present invention make into
One step describes.
As illustrated in figs. 2 through 8, interpolation type thin-film capacitor voltage divider is by tetrafluoro bushing 7, connected structure 8, metal foil 9, deielectric-coating
10 4 parts form, and the outer surface of metal foil 9 does not have solder joint, and there are one connected structures 8 for inner surface weldering, and end inner core 5 is logical
It crosses connected structure 8 and is electrically connected with metal foil 9 to realize.Tetrafluoro bushing 7, connected structure 8, metal foil 9, more than 4 portion of deielectric-coating
Point the order of connection be：Metal foil 9 is pasted on deielectric-coating 10, and deielectric-coating 10 is pasted on barrel 3, and 9 bottom end of connected structure is welded in
Metal foil 9, tetrafluoro bushing 7 are placed on connected structure 8, and are inserted among the trepanning of barrel 3 together together with connected structure 8.
In conjunction with Fig. 2-6, there is following several respects requirement to the manufacture craft of interpolation type thin-film capacitor voltage divider：
(1) aperture of connected structure 8 is more smaller than the outer diameter of end inner core 5 (small~0.1mm), to ensure connected structure
8 is reliable with being electrically connected for end inner core 5；
(2) 10 intermediate borehole of deielectric-coating, aperture is between the outer diameter on 8 chassis of outer diameter and connected structure of tetrafluoro bushing 7, together
When 9 surrounding of deielectric-coating 10 opposing metallic foil stay side, 5~10mm of distance, to ensure not occurring along face between metal foil 9 and barrel 3
Flashover；
(3) outer diameter of tetrafluoro bushing 7 is more smaller than the internal diameter of cable block preformed hole (small~0.1mm), to ensure tetrafluoro bushing 7
It can be embedded in cable block preformed hole；
(4) section of second, third part of tetrafluoro bushing 7 is " recessed " type, is matched with " convex " type of end, to ensure
Electric insulation in cable aperture.
Incorporated by reference to the voltage divider principle of the divider of the introduction about the construction present invention of the interpolation type thin-film capacitor voltage divider of the present invention.
In conjunction with coaxial high pressure vacuum diode shown in Fig. 8, the principle of interpolation type thin-film capacitor voltage divider is as follows：Work as vacuum
When the inner wire of diode adds high pressure, being pasted on the thin-film capacitor voltage divider of vacuum diode outer conductor inner surface can sense
Charge, charge accumulation form voltage.Induced voltage is drawn by end and cable, then is connected into an oscillograph, and then can be supervised
Survey the voltage on high-tension apparatus.Induced voltage amplitude is related with the capacitance of thin film capacitor and high-tension apparatus structure to be measured.
Under normal circumstances, the induced voltage amplitude on capacitive divider is proportional to voltage magnitude to be measured.Before application capacitive divider,
Needing to demarcate or calculate in advance this proportionality coefficient, (this proportionality coefficient is referred to as intrinsic standoff ratio, is voltage u to be measurediWith show
Wave device shows voltage uoThe ratio between, generally indicated with β).Under the premise of learning intrinsic standoff ratio, if measuring the voltage amplitude on oscillograph
Value uo, uoBy being multiplied with intrinsic standoff ratio, the real voltage u on high-tension apparatus can be learnti。
Again by taking the coaxial high pressure vacuum insulator in Fig. 8 as an example, the 12 internal diameter 350mm of coaxial outer conductor of the equipment, together
Axis inner wire 11 outer diameter 170mm, withstanding voltage 500kV use vacuum for dielectric.
Interpolation type thin-film capacitor voltage divider is mounted in equipment：Shape is as shown in fig. 7, interpolation type thin-film capacitor voltage divider is each
Component sets as follows：
(1) metal foil selects the titanium foil of 0.05mm, width 50mm, long 110mm, quadrangle to lead 25mm circles；
(2) deielectric-coating is polyimides material, double-sides belt glue, thick 0.05mm, dielectric constant 3.5；Deielectric-coating shape is also set
It is calculated as racetrack, opposing metallic foil surrounding stays side 5mm；Medium center membrane borehole, aperture 3.0mm, between tetrafluoro Outer Diameter of lining
Between 3.2mm and connected structure enlarged diameter section bottom surface outer diameter 2.5mm；
(3) connected structure enlarged diameter section is welded by vacuum electron beam and metal foil, and the hole internal diameter of connected structure is designed as
0.9mm is slightly less than the outer diameter 1mm of end inner core；
(4) outer diameter of tetrafluoro bushing is designed as 3.2mm, is slightly less than the internal diameter 3.5mm of cable aperture；The internal diameter edge of tetrafluoro bushing
Busing axis is to three sections of end direction point, and three sections of internal diameters are respectively 2.5mm, 1.8mm and 2.5mm, and three sections of height are 2mm；
End insulating bushing outer diameter is 2.5mm, and end insulating bushing is higher by end outer wall 2mm；Divider and end are completed
After installation, divider tetrafluoro bushing recess is just filled in end insulating bushing protrusion part.
Before practical application, interpolation type thin-film capacitor voltage divider is demarcated, in divider waveform and high-voltage probe
Under the premise of upper acquisition waveform is consistent, show that the intrinsic standoff ratio of divider is 4.14k.In application, in order to be closed on oscillograph
Suitable waveforms amplitude introduces two level electric resistance partial pressure box, intrinsic standoff ratio 21, so total theoretical intrinsic standoff ratio is 87k.Work as diode
When exporting 500kV voltages, the voltage signal of 5.75V is obtained in measuring system, correspondence system intrinsic standoff ratio is 85k, with practical knot
Fruit is almost the same, this illustrates the availability of interpolation type thin-film capacitor voltage divider.
Claims (9)
1. a kind of interpolation type thin-film capacitor voltage divider, including induction electrode, the induction electrode is arranged in the end face of cylinder, special
Sign is：
The induction electrode is metal foil；
The capacitive divider further includes connected structure, deielectric-coating and bushing in addition to metal foil；
The connected structure is located among the trepanning of cylinder, and connected structure is divided to two sections of size, the end face of big section by outer profile size
It is welded with metal foil, the segment of the connected structure is made of N number of lobe, N number of lobe circumferential arrangement, N number of lobe
The centre bore of end inner core, N >=2 can be accommodated by being centrally formed；
The bushing is between connected structure and cylinder, for the electric insulation between metal foil and cylinder inboard wall；
The deielectric-coating is used to form thin film capacitor between metal foil and body end surface.
2. interpolation type thin-film capacitor voltage divider according to claim 1, it is characterised in that：The connected structure segment setting
There is horn mouth of the opening facing towards end.
3. interpolation type thin-film capacitor voltage divider according to claim 1 or 2, it is characterised in that：The quantity of the lobe
It it is 4,4 lobes are uniformly distributed along the circumference.
4. interpolation type thin-film capacitor voltage divider according to claim 3, it is characterised in that：The bushing is tetrafluoro bushing,
The endoporus of the tetrafluoro bushing points three sections, include successively axially along tetrafluoro bushing with big section of matched first endoporus of connected structure,
With matched second endoporus of connected structure segment and the matched third endoporus of end insulation sleeve.
5. interpolation type thin-film capacitor voltage divider according to claim 4, it is characterised in that：The metal foil is titanium foil.
6. interpolation type thin-film capacitor voltage divider according to claim 5, it is characterised in that：The bushing material is polytetrafluoro
Ethylene.
7. interpolation type thin-film capacitor voltage divider according to claim 6, it is characterised in that：The deielectric-coating opposing metallic foil
Surrounding stays side, 5~10mm of distance.
8. interpolation type thin-film capacitor voltage divider according to claim 7, it is characterised in that：The Outer Diameter of lining is less than cylinder
0~0.1mm of internal diameter.
9. interpolation type thin-film capacitor voltage divider according to claim 8, it is characterised in that：The centre bore of the connected structure
Aperture ratio end inner core the small 0~0.1mm of outer diameter, to ensure that connected structure and being electrically connected for end inner core are reliable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610460582.0A CN106199120B (en) | 2016-06-22 | 2016-06-22 | Interpolation type thin-film capacitor voltage divider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610460582.0A CN106199120B (en) | 2016-06-22 | 2016-06-22 | Interpolation type thin-film capacitor voltage divider |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106199120A CN106199120A (en) | 2016-12-07 |
| CN106199120B true CN106199120B (en) | 2018-10-26 |
Family
ID=57461816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610460582.0A Expired - Fee Related CN106199120B (en) | 2016-06-22 | 2016-06-22 | Interpolation type thin-film capacitor voltage divider |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106199120B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107240796B (en) * | 2017-06-02 | 2019-01-22 | 西北核技术研究所 | High sealing coaxial cable connector with second level partial pressure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128964A (en) * | 2011-01-14 | 2011-07-20 | 西北核技术研究所 | Capacitive voltage divider used for measuring radiation diode parameters and installation method |
| EP2492697A1 (en) * | 2011-02-25 | 2012-08-29 | Abb Ag | Resistive voltage divider with improved phase accuracy |
| CN103235166A (en) * | 2013-04-17 | 2013-08-07 | 清华大学 | Hand-hole type capacitive voltage divider |
| CN203224545U (en) * | 2013-04-28 | 2013-10-02 | 中国西电电气股份有限公司 | Capacitive voltage divider for electronic voltage transformer |
| CN104316740A (en) * | 2014-11-14 | 2015-01-28 | 国家电网公司 | Coupling capacitance voltage divider with shielding capacitor core |
| CN204706463U (en) * | 2015-06-16 | 2015-10-14 | 北京七一八友益电子有限责任公司 | High voltage thin film capacitor |
| CN204855621U (en) * | 2015-06-03 | 2015-12-09 | 烟台东方威思顿电气股份有限公司 | Electrified source and electrically conductive shielded plug -type voltage sensor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001027653A (en) * | 1999-07-14 | 2001-01-30 | Mitsubishi Electric Corp | Capacitor potential divider |
| US7170738B2 (en) * | 2004-05-28 | 2007-01-30 | Maxwell Technologies, Inc. | HV capacitor and testing method |
-
2016
- 2016-06-22 CN CN201610460582.0A patent/CN106199120B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128964A (en) * | 2011-01-14 | 2011-07-20 | 西北核技术研究所 | Capacitive voltage divider used for measuring radiation diode parameters and installation method |
| EP2492697A1 (en) * | 2011-02-25 | 2012-08-29 | Abb Ag | Resistive voltage divider with improved phase accuracy |
| CN103235166A (en) * | 2013-04-17 | 2013-08-07 | 清华大学 | Hand-hole type capacitive voltage divider |
| CN203224545U (en) * | 2013-04-28 | 2013-10-02 | 中国西电电气股份有限公司 | Capacitive voltage divider for electronic voltage transformer |
| CN104316740A (en) * | 2014-11-14 | 2015-01-28 | 国家电网公司 | Coupling capacitance voltage divider with shielding capacitor core |
| CN204855621U (en) * | 2015-06-03 | 2015-12-09 | 烟台东方威思顿电气股份有限公司 | Electrified source and electrically conductive shielded plug -type voltage sensor |
| CN204706463U (en) * | 2015-06-16 | 2015-10-14 | 北京七一八友益电子有限责任公司 | High voltage thin film capacitor |
Non-Patent Citations (3)
| Title |
|---|
| 一种小型集中式电容分压器的研制;郭丽萍等;《高压电器》;20010825;第37卷(第3期);24-26 * |
| 测量强流电子加速器脉冲电压的电容分压器研制;丁德胜;《中国优秀硕士学位论文全文数据库-工程科技Ⅱ辑》;20140315;第2014卷(第3期);35-39 * |
| 用于纳秒脉冲高压测量的同轴型电容分压器;刘轩东等;《高压电器》;20080216;第44卷(第1期);32-33 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106199120A (en) | 2016-12-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103630803B (en) | A kind of cable partial discharge live correction method | |
| CN105340025A (en) | Conductor assembly | |
| CN103344889B (en) | The method of cable local discharge measured by a kind of electric capacity wire jumper | |
| CN108663562A (en) | A kind of contactless cable voltage measurement sensor | |
| CN106199120B (en) | Interpolation type thin-film capacitor voltage divider | |
| CN104678230B (en) | A kind of three-dimensional microwave component test device | |
| CN207896297U (en) | A kind of elastomeric connector of soldering-free type test microstrip circuit | |
| CN102053236A (en) | Square-wave generator and system and method for calibratig resistance voltage divider | |
| CN102998496B (en) | Series capacitor anti-interference layer structure and manufacturing method thereof | |
| CN207742237U (en) | A kind of capacitive divider measuring coaxial cable pulse voltage | |
| CN206710469U (en) | Oscillograph high-voltage probe expansion module | |
| CN202178471U (en) | Cable connector for built-in coupler and coupler thereof | |
| CN204167022U (en) | A kind of high-voltage wall bushing | |
| CN103872447A (en) | Super high-frequency antenna sensor for local discharging of electrical equipment | |
| CN209691552U (en) | A kind of bushing shell for transformer | |
| CN207851172U (en) | A kind of cable flexible joint test tool | |
| CN104332258A (en) | Improved high voltage wall bushing | |
| CN105024250B (en) | Adaptor for connecting resistor to cable assembly | |
| CN110033933A (en) | A kind of preparation method of bushing shell for transformer and bushing shell for transformer | |
| CN202502200U (en) | Balancing method-based cable partial discharge measurement device | |
| CN108107295A (en) | A kind of cable flexible joint test tool and method | |
| CN203617424U (en) | Ultrahigh frequency antenna sensor for partial discharge of electrical equipment | |
| CN216285558U (en) | Cable partial discharge and high voltage detection integrated device and circuit | |
| CN219915755U (en) | Segmented rogowski coil and crimping type current distribution detection device for power electronic device | |
| CN110686753B (en) | Liquid level measuring sensor and liquid level meter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181026 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |