CN106645859A - Capacitive voltage divider - Google Patents
Capacitive voltage divider Download PDFInfo
- Publication number
- CN106645859A CN106645859A CN201510725000.2A CN201510725000A CN106645859A CN 106645859 A CN106645859 A CN 106645859A CN 201510725000 A CN201510725000 A CN 201510725000A CN 106645859 A CN106645859 A CN 106645859A
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- China
- Prior art keywords
- low
- ground electrode
- electrode
- capacitive divider
- field electrode
- 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.)
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- 239000003990 capacitor Substances 0.000 claims abstract description 21
- 238000013016 damping Methods 0.000 claims abstract description 18
- 239000003365 glass fiber Substances 0.000 claims abstract description 13
- 230000005684 electric field Effects 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims 1
- 230000004044 response Effects 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 239000011810 insulating material Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 7
- 238000005259 measurement Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000003989 dielectric material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 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
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010409 thin film Substances 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
- G01R15/16—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using capacitive devices
-
- 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
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
- Connector Housings Or Holding Contact Members (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention provides a capacitive voltage divider, and the voltage divider comprises an upper flange and a lower flange, which are installed at the top and bottom of a glass fiber sleeve. A high-voltage electrode installed in the glass fiber sleeve is connected with the upper flange, and a low-voltage electrode installed in the glass fiber sleeve is connected with the lower flange through an insulating material plate. The voltage divider is simple in structure, is convenient for installation and conveying, and is stable in performance. A high-voltage arm capacitor is disposed between shielding capacitors, and is not affected by external stray capacitance. The internal structure of the voltage divider is a pure capacitor, and has no inductor, so the voltage divider is good in frequency response. A high-voltage lead employs a metal guide rod, is low in stray inductance, and is small in damping resistance.
Description
Technical field
The present invention relates to a kind of potentiometer, and in particular to a kind of capacitance partial pressure for measuring surge voltage signal
Device.
Background technology
The surge voltage pressure test of power equipment is to simulate the electricity that power system transmission line is subjected to lightning impulse
Surge voltage when pressure and folding disconnecting link.The parameter for measuring is needed for example to have surge voltage in process of the test
Amplitude and time, the impulse voltage divider being directed to is voltage conversion device, by high-voltage impact voltage
Signal is converted into being available for the low-voltage signal of double measurement measurement device.
Impulse voltage divider is broadly divided into two kinds of resitstance voltage divider and capacitive divider, and resitstance voltage divider has step
Ripple response is excellent, and wave distortion is little, the advantages of scale factor good stability, but due to the original of resistance wire heating
Cause, the electric pressure of resitstance voltage divider is generally below 1000kV, and is only used for measuring lightning impulse voltage.
Currently higher than the impulse voltage divider of 1000kV mostly adopts capacitive divider.Capacitive divider dielectric loss is little,
Do not generate heat, due to the impact of the stray inductance on loop, cause wave distortion to be vibrated, because damping circuit shakes
Swing, have developed capacitance-resistance series voltage divider.
The capacitance of the high-voltage arm of capacitance-resistance series voltage divider is generally 400pF, and capacitive divider easily receives stray electrical
The impact of appearance, in addition the capacitance stability of the impulse capacitor of paper oil insulation is bad, and dielectric loss is larger.Low pressure
Arm electric capacity generally uses lumped capacitance (thin-film electro perhaps mica capacitor), so having carried out ripple in cable input
Designing impedance matching.Due to the medium difference of height pressure arm, its temperature coefficient and voltage coefficient are also differed,
Scale factor fluctuation is larger, can only typically ensure 3% accuracy, and the linearity cannot ensure, it is impossible to for making
Transient signal is measured for standard voltage divider.
The content of the invention
To overcome drawbacks described above, the invention provides a kind of implementation method of capacitive divider, eliminates potentiometer
The impact of the coupled capacitor between equipment, for carrying out the calibration of more than 1000kV impulse voltage dividers, enters one
Step improves the stability and practicality of capacitive divider scale factor.
For achieving the above object, concrete technical scheme of the invention is as follows：
A kind of capacitive divider, the capacitive divider includes：Grading ring (3), upper flange (4), glass
Fiber sleeve (5), high-field electrode (6), data acquisition and radio transmitting device (7), ground electrode 1 (8),
Low-field electrode (9), ground electrode 2 (10), dielectric panel (11) and lower flange (12)；The upper method
Blue (4) and lower flange (12) are separately mounted to the upper and lower side of glass fibre sleeve (5)；The ground connection electricity
Pole 1 (8), low-field electrode (9), ground electrode 2 (10) and data acquisition and radio transmitting device (7)
It is sequentially arranged in glass fibre sleeve (5)；
The ground electrode 1 (8) and ground electrode 2 (10) are connected respectively with the lower flange (12)；
The low-field electrode (9) is connected with dielectric panel (11) is provided between lower flange (12).
The low-field electrode (9) is the drum-shaped that Open Side Down, and its crown center outside is provided with circular protrusions.
The ground electrode 2 (10) is the drum-shaped electrode that Open Side Down；
The crown center of the ground electrode 1 (8) is provided with passes through can the projection of the low-field electrode (9)
Logical opening.
Filling insulation respectively between the low-field electrode (9) and ground electrode 1 (8) and ground electrode 2 (10)
Gas.
Between the circular protrusions of high-field electrode (6) and low-field electrode (9) and with the ground electrode 1 (8)
Between form high voltage arm capacitor C respectively1With mask capacitor C0, between low-field electrode (9) and ground electrode 1 (8)
And form low-voltage arm electric capacity C respectively between ground electrode 2 (10)21Low-voltage arm electric capacity C22；
The low-voltage arm electric capacity C21With low-voltage arm electric capacity C22Composition low-voltage arm electric capacity C2；Damping resistance RdOne
End and high voltage arm capacitor C1With low-voltage arm electric capacity C2It is sequentially connected；Damping resistance RdThe other end and high pressure guide rod
It is connected；Low-voltage arm electric capacity C2The other end ground connection；Data acquisition is with radio transmitting device (7) respectively by electricity
Resistance R21And R22With low-voltage arm electric capacity C2Two ends are connected.
The external diameter of the ground electrode 1 (8) is not less than the circular protrusions external diameter on low-field electrode (9)
3 times.
The outside of the upper flange (4) is provided with grading ring (3)；The bottom of the lower flange (12) is provided with bottom
Seat (13), lower flange (12) ground connection.
The high-field electrode (6) is connected by upper flange (4) with damping resistance (2), the damping resistance
(2) it is connected with high pressure guide rod (1).
The high-field electrode (6), low-field electrode (9), ground electrode 1 (8) and ground electrode 2 (10)
Material be metallic aluminium, outside adopts designed arc-shaped appearance, it is ensured that electric field intensity is within 200kV/cm.
The glass fibre sleeve (5) and low-field electrode (9) are electric with ground electrode 1 (8) and ground connection respectively
The insulating gas of 5 atmospheric pressure is filled respectively in the gap formed between pole 2 (10)；The insulating gas is SF6
Gas.
With immediate prior art ratio, the invention has the advantages that：
(1) capacitance-resistance capacitive divider of the invention, simple structure, installation and transportation are convenient, stable performance.Number
It is built-in according to collecting unit, data are transmitted using radio transmitting device, without measurement cable, it is not necessary to carry out impedance
Matching eliminates the catadioptric problem of signal.
(2) medium of all electric capacity is all SF6 gases, there is no other solid insulating materials, dielectric constant
Unanimously, temperature coefficient is identical, and scale factor is stable.
(3) high voltage arm capacitor is placed between mask capacitor, is not affected by extraneous stray capacitance.
(4) potentiometer internal structure is purely capacitive structure, and without inductance, the frequency response of potentiometer is good.
(5) high-voltage connection adopts metal guide rod, and stray inductance is low, and damping resistance is little.
Description of the drawings
Fig. 1 is capacitive divider structural representation.
Fig. 2 is high-field electrode and the partial enlarged drawing between low-field electrode in Fig. 1.
Fig. 3 is capacitive divider principle schematic.
Wherein：1-high pressure guide rod, 2-damping resistance, 3-grading ring, 4- upper flanges, 5- glass fibre
Sleeve pipe, 6- high-field electrodes, 7- data acquisitions and radio transmitting device, 8-ground electrode 1,9- low tensions
Pole, 10-ground electrode 2,11-dielectric material block, 12-lower flange, 13-base；C0- bucking electrodes,
C1- high voltage arm capacitors, C2-low-voltage arm electric capacity, C21-low-voltage arm electric capacity, C22-low-voltage arm electric capacity, Rd
- damping resistance.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is described in further detail with specific embodiment：
As shown in figure 1, a kind of capacitive divider, including high pressure guide rod, damping resistance, grading ring, upper method
Blue, glass fibre sleeve, high-field electrode, data acquisition and radio transmitting device, ground electrode 1, low tension
Pole, ground electrode 2, dielectric panel and lower flange；
Wherein high-field electrode, low-field electrode, ground electrode 1 and ground electrode 2 are bulk metal aluminum, low
Piezoelectricity pole is connected by dielectric material block with lower flange, and ground electrode 1 and ground electrode 2 are directly and lower flange
It is connected, lower flange ground connection.The SF6 gases of 5 atmospheric pressure are filled with potentiometer housing.Using electric field measurement
Principle design slightly non-uniform field measurement transient signal.Low-field electrode intermediate projections are circular to lead to both sides ground electrode
Cross SF6 gas-insulateds.
As shown in Fig. 2 the electric capacity projected with low-field electrode between circle of high-field electrode forms high voltage arm capacitor
C1, forms mask capacitor C0, between high-field electrode and low-field electrode between high-field electrode and ground electrode 1
Electric field approaches uniformity electric field.When extraneous other electrical bodies of presence, the coupling of potentiometer and other charged objects
Electric capacity only changes the capacitance of mask capacitor C0.Low-field electrode forms C21, low-field electrode with ground electrode 1
C22, C21 and C22 are formed with ground electrode 2 collectively constitute low-voltage arm electric capacity C2.
As shown in figure 3, data acquisition is placed in inside ground electrode 2 with radio transmitting device, using wireless biography
Transferring technology transmits a signal to PC, is not required to carry out impedance matching, and data acquisition end passes through respectively resistance
R21R22 connects the two ends of low-voltage arm electric capacity,.
Impulse voltage divider simple structure, sturdy and durable, high voltage arm capacitor and low-voltage arm electric capacity adopt identical
Insulating gas (SF6), the variation tendency of height pressure arm is consistent, it is ensured that scale factor is stablized.
To reduce the degree of irregularity of electric field, prevent corona, high-field electrode, low-field electrode, ground connection electricity
The outside of pole 1 and ground electrode 2 adopts designed arc-shaped appearance, it is ensured that electric field intensity is within 200kV/cm.
To ensure that ground electrode 1 plays shield effectiveness, it is ensured that extraneous electrical body will not be produced to high voltage arm capacitor C1
Raw to affect, the external diameter of ground electrode 1 is not less than 3 times that low-field electrode top projects circular outer diameter.
The whole height of potentiometer and the size of grading ring are designed according to the rated voltage of potentiometer, according to electric field
Intensity determines the clearance distance between high-field electrode and low-field electrode, and according to high voltage arm capacitor amount low tension is determined
Pole center projects the diameter of conductor, and according to the diameter of prominent conductor the external diameter of ground electrode 1 is determined.According to electricity
Field intensity determines the radius of the rounded at the edge of high-field electrode, low-field electrode and ground electrode, according to collecting unit
Output voltage limit value determine low-field electrode and the distance between ground electrode 1 and ground electrode 2, in design
During need consider processing difficulty and feasibility, suitably leave nargin.
Design high pressure guide rod reduces the stray inductance on lead as far as possible, make can the noninductive resistance of oscillation-damped make
For damping resistance, damping resistance value is obtained by step response test, according to the partial pressure size of damping resistance
The size of design damping resistance.
It is to be understood that, present invention and specific embodiment are intended to prove technical side provided by the present invention
The practical application of case, should not be construed as limiting the scope of the present invention.Those skilled in the art are at this
Under bright spirit and principle are inspired, can various modifications may be made, equivalent or improve.But these change or repair
Change and applying within pending claims.
Claims (10)
1. a kind of capacitive divider, the capacitive divider includes：Grading ring (3), upper flange (4), glass
Glass fiber sleeve (5), high-field electrode (6), data acquisition and radio transmitting device (7), ground electrode 1 (8),
Low-field electrode (9), ground electrode 2 (10), dielectric panel (11) and lower flange (12)；Its feature exists
In：The upper flange (4) and lower flange (12) are separately mounted to the upper and lower side of glass fibre sleeve (5)；
The ground electrode 1 (8), low-field electrode (9), ground electrode 2 (10) and data acquisition be wirelessly transferred
Device (7) is sequentially arranged in glass fibre sleeve (5)；
The ground electrode 1 (8) and ground electrode 2 (10) are connected respectively with the lower flange (12)；
The low-field electrode (9) is connected with dielectric panel (11) is provided between lower flange (12).
2. capacitive divider according to claim 1, it is characterised in that：The low-field electrode (9)
For the drum-shaped that Open Side Down, its crown center outside is provided with circular protrusions.
3. capacitive divider according to claim 2, it is characterised in that：The ground electrode 2 (10)
For the drum-shaped electrode that Open Side Down；
The crown center of the ground electrode 1 (8) is provided with passes through can the projection of the low-field electrode (9)
Logical opening.
4. capacitive divider according to claim 3, it is characterised in that：The low-field electrode (9)
Insulating gas is filled respectively between ground electrode 1 (8) and ground electrode 2 (10).
5. capacitive divider according to claim 3, it is characterised in that：High-field electrode (6) with it is low
High voltage arm capacitor is formed respectively between the circular protrusions of piezoelectricity pole (9) and between the ground electrode 1 (8)
C1With mask capacitor C0, between low-field electrode (9) and ground electrode 1 (8) and between ground electrode 2 (10)
Low-voltage arm electric capacity C is formed respectively21Low-voltage arm electric capacity C22；
The low-voltage arm electric capacity C21With low-voltage arm electric capacity C22Composition low-voltage arm electric capacity C2；Damping resistance RdOne
End and high voltage arm capacitor C1With low-voltage arm electric capacity C2It is sequentially connected；Damping resistance RdThe other end and high pressure guide rod
It is connected；Low-voltage arm electric capacity C2The other end ground connection；Data acquisition is with radio transmitting device (7) respectively by electricity
Resistance R21And R22With low-voltage arm electric capacity C2Two ends are connected.
6. capacitive divider according to claim 3, it is characterised in that：The ground electrode 1 (8)
External diameter not less than 3 times of the circular protrusions external diameter on low-field electrode (9).
7. capacitive divider according to claim 1, it is characterised in that：The upper flange (4)
Outside is provided with grading ring (3)；The bottom of the lower flange (12) is provided with base (13), the lower flange (12)
Ground connection.
8. capacitive divider according to claim 1, it is characterised in that：The high-field electrode (6)
It is connected with damping resistance (2) by upper flange (4), the damping resistance (2) and high pressure guide rod (1)
It is connected.
9. capacitive divider according to claim 1, it is characterised in that：The high-field electrode (6),
The material of low-field electrode (9), ground electrode 1 (8) and ground electrode 2 (10) is metallic aluminium, outside
Adopt designed arc-shaped appearance, it is ensured that electric field intensity is within 200kV/cm.
10. capacitive divider according to claim 4, it is characterised in that：The glass fibre sleeve
(5) and low-field electrode (9) respectively between ground electrode 1 (8) and ground electrode 2 (10) formed
The insulating gas of 5 atmospheric pressure is filled respectively in gap；The insulating gas is SF6Gas.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510725000.2A CN106645859B (en) | 2015-10-29 | 2015-10-29 | Capacitive voltage divider |
| GB1805298.5A GB2556853B8 (en) | 2015-10-29 | 2016-07-26 | Capacitive voltage divider |
| DE112016004925.0T DE112016004925B4 (en) | 2015-10-29 | 2016-07-26 | Capacitive voltage divider |
| PCT/CN2016/091702 WO2017071333A1 (en) | 2015-10-29 | 2016-07-26 | Capacitive voltage divider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510725000.2A CN106645859B (en) | 2015-10-29 | 2015-10-29 | Capacitive voltage divider |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106645859A true CN106645859A (en) | 2017-05-10 |
| CN106645859B CN106645859B (en) | 2024-03-19 |
Family
ID=58631276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510725000.2A Active CN106645859B (en) | 2015-10-29 | 2015-10-29 | Capacitive voltage divider |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN106645859B (en) |
| DE (1) | DE112016004925B4 (en) |
| GB (1) | GB2556853B8 (en) |
| WO (1) | WO2017071333A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109324305A (en) * | 2018-11-19 | 2019-02-12 | 中国电力科学研究院有限公司 | Impulse voltage divider linearity calibration capacitor bleeder mechanism |
| CN113130176A (en) * | 2021-04-23 | 2021-07-16 | 山东泰开检测有限公司 | High-voltage harmonic transformer |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019227826A1 (en) * | 2018-05-31 | 2019-12-05 | 全球能源互联网研究院有限公司 | Wideband voltage transformer |
| CN110850139B (en) * | 2018-08-21 | 2022-02-01 | 西安西电高压开关有限责任公司 | Voltage measuring device |
| CN113358962B (en) * | 2021-06-15 | 2022-03-22 | 合肥航太电物理技术有限公司 | Experimental device for compact impulse voltage generator and voltage divider |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4591783A (en) * | 1982-10-29 | 1986-05-27 | Bbc Brown, Boveri & Co., Ltd. | Capacitive voltage transformer |
| CN2574061Y (en) * | 2002-06-30 | 2003-09-17 | 武汉高压研究所 | High voltage capacitance divider |
| CN202362345U (en) * | 2011-12-07 | 2012-08-01 | 重庆市电力公司电力科学研究院 | Standard capacitance divider and induced voltage measurement device |
| JP2013187215A (en) * | 2012-03-06 | 2013-09-19 | Toshiba Corp | Capacitance potential 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 |
| CN205176097U (en) * | 2015-10-29 | 2016-04-20 | 中国电力科学研究院 | Capacitive divider |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001027653A (en) * | 1999-07-14 | 2001-01-30 | Mitsubishi Electric Corp | Capacitor potential divider |
| JP2002048820A (en) * | 2000-08-03 | 2002-02-15 | Toshiba Corp | Capacitance-type voltage divider |
| CN2821822Y (en) * | 2005-09-12 | 2006-09-27 | 广东四会互感器厂有限公司 | Outdoor dry high voltae capacitance voltage mutual inductor |
| CN203630174U (en) * | 2013-12-04 | 2014-06-04 | 国家电网公司 | High precision capacitive voltage divider applied in live-line verification |
| CN104378963B (en) * | 2014-11-20 | 2018-03-23 | 平高集团有限公司 | The assembly method of intermediate potential shielding, current transformer and intermediate potential shielding |
| CN204649819U (en) | 2015-06-04 | 2015-09-16 | 中国电力科学研究院 | A kind of capacitive divider |
-
2015
- 2015-10-29 CN CN201510725000.2A patent/CN106645859B/en active Active
-
2016
- 2016-07-26 WO PCT/CN2016/091702 patent/WO2017071333A1/en active Application Filing
- 2016-07-26 GB GB1805298.5A patent/GB2556853B8/en active Active
- 2016-07-26 DE DE112016004925.0T patent/DE112016004925B4/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4591783A (en) * | 1982-10-29 | 1986-05-27 | Bbc Brown, Boveri & Co., Ltd. | Capacitive voltage transformer |
| CN2574061Y (en) * | 2002-06-30 | 2003-09-17 | 武汉高压研究所 | High voltage capacitance divider |
| CN202362345U (en) * | 2011-12-07 | 2012-08-01 | 重庆市电力公司电力科学研究院 | Standard capacitance divider and induced voltage measurement device |
| JP2013187215A (en) * | 2012-03-06 | 2013-09-19 | Toshiba Corp | Capacitance potential 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 |
| CN205176097U (en) * | 2015-10-29 | 2016-04-20 | 中国电力科学研究院 | Capacitive divider |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109324305A (en) * | 2018-11-19 | 2019-02-12 | 中国电力科学研究院有限公司 | Impulse voltage divider linearity calibration capacitor bleeder mechanism |
| CN113130176A (en) * | 2021-04-23 | 2021-07-16 | 山东泰开检测有限公司 | High-voltage harmonic transformer |
| CN113130176B (en) * | 2021-04-23 | 2023-02-21 | 山东泰开检测有限公司 | High-voltage harmonic transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201805298D0 (en) | 2018-05-16 |
| GB2556853B (en) | 2021-09-22 |
| DE112016004925B4 (en) | 2022-03-31 |
| GB2556853B8 (en) | 2021-10-13 |
| GB2556853A8 (en) | 2018-07-04 |
| GB2556853A (en) | 2018-06-06 |
| CN106645859B (en) | 2024-03-19 |
| DE112016004925T5 (en) | 2018-07-19 |
| WO2017071333A1 (en) | 2017-05-04 |
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