CN109188228A - A kind of rotating platform spininess plate electrode corona aging experimental rig - Google Patents
A kind of rotating platform spininess plate electrode corona aging experimental rig Download PDFInfo
- Publication number
- CN109188228A CN109188228A CN201811277407.3A CN201811277407A CN109188228A CN 109188228 A CN109188228 A CN 109188228A CN 201811277407 A CN201811277407 A CN 201811277407A CN 109188228 A CN109188228 A CN 109188228A
- Authority
- CN
- China
- Prior art keywords
- electrode
- plate
- copper
- pin
- corona
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1245—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of line insulators or spacers, e.g. ceramic overhead line cap insulators; of insulators in HV bushings
Abstract
The invention discloses a kind of rotating platform spininess plate electrode corona aging experimental rigs, including dielectric disc, insulation column I, electrode plate, insulating support, copper electrode, pin electrode, copper connecting line, pedestal stainless steel disk, insulation column II, copper sheet, stepper motor, insulated connecting rod and noninductive resistance, multiple pin electrodes are set in array in electrode plate, copper sheet is located at the underface of electrode plate.Present apparatus structure is simple, and corona discharge power is big, and the area of corona discharge effect is big, can carry out corona aging processing to plate insulating materials surface.Due to using the rotational structure of rotating platform, the plate insulating materials being placed on rotating platform can be rotated according to scheduled revolving speed, so that more uniform by the effect of corona aging by the plate insulating materials of Corona discharge Treatment, reduce because corona discharge unevenly caused by silastic material corona aging test result deviation, support can be provided for plate insulating materials corona aging characteristic test and assessment.
Description
Technical field
The present invention relates to high-voltage corona discharges and corona aging experimental technique field more particularly to a kind of rotating platform spininess
Plate electrode corona aging experimental rig.
Background technique
Compared with traditional glass insulator and ceramic insulator, silicon rubber compound insulator has light-weight, resistance to soiling
The advantages that energy is good, easy to maintain is used widely in the power system.According to statistics, in China 110kV and the above transmission line of electricity
In the silicon rubber compound insulator quantity that comes into operation be more than millions of, a plurality of UHV transmission line built also gradually
Begin to use compound inslation, reliability directly threatens the safe operation of transmission line of electricity, and importance is self-evident.
Corona discharge is inevitable in high-voltage and EHV transmission line, even in humid conditions through
It crosses well-designed insulator and the fitting being attached thereto all not can avoid the generation of corona, and lasting corona can be damaged significantly
Hurt silicon rubber insulator and influences its long-term operation performance.By the development of recent decades, related silicone rubber insulation material is each
Runnability under kind of working condition has obtained huge promotion, but by corona discharge to the deterioration of silicone rubber insulation material and
The problems such as influence of the durability of silastic material, still has to be solved.
Corona discharge refers to local self-maintained discharge phenomenon of the gas medium in non-uniform electric field, is mostly used at present in needle plate
Electrode both ends apply voltage to generate non-uniform electric field, when voltage reaches at or above the starting voltage of needle plate Corona Discharge
Afterwards, lasting corona discharge will be generated between needle plate electrode gap.Needle plate electrode according to the pin electrode quantity of use not
It is same to be divided into, two class of single needle plate electrode and spininess plate electrode.When other conditions are identical, the power of corona discharge between needle plate electrode
It can enhance with the increase of the quantity of pin electrode.Therefore the corona intensity that in general single-needle electrodes generate is weaker, and produces
Raw corona is only capable of acting on the partial region immediately below pin electrode, and the region of corona discharge effect is limited.When using spininess electricity
When pole, the intensity of corona discharge can be improved, increase the region of corona discharge effect, but the distance between pin electrode and pin electrode
The power that corona discharge can all be influenced at a distance from plate electrode with needle point, causes in the corona zone of action, the effect effect of corona
Fruit has certain difference, this species diversity cause silastic material corona aging test result there are certain deviations, can give
The assessment of the anti-corona aging characteristic of silastic material brings certain difficulty.
Summary of the invention
For the deficiency of above-mentioned single needle plate and spininess plate corona aging experimental rig, the present invention provides a kind of rotating platforms
Spininess plate electrode corona aging experimental rig.
In order to solve the above-mentioned technical problem, present invention employs following technical solutions:
A kind of rotating platform spininess plate electrode corona aging experimental rig, including dielectric disc, insulation column I, electrode are flat
Plate, insulating support, copper electrode, pin electrode, copper connecting line, pedestal stainless steel disk, insulation column II, copper sheet, stepper motor,
Insulated connecting rod and noninductive resistance；
The dielectric disc is arranged on insulation column I, and the electrode plate is arranged by insulating support in dielectric disc
Middle part below；
The copper electrode is circular ring shape, and the copper electrode is arranged in electrode plate, in the electrode plate and is located at copper
Pin hole is set in array in electrode, a pin electrode is provided in each pin hole, the pin electrode passes through pin hole, the electrode
Plate is connect with copper connecting line；
The pedestal stainless steel disk is arranged on insulation column II, and the copper sheet is horizontally set on pedestal stainless steel disk
Top, groove I, the bottom setting of the copper sheet and groove I are along the circumferential direction uniformly arranged in the pedestal stainless steel disk
One-to-one groove II, is arranged a steel ball between each corresponding groove I and groove II, and the copper sheet passes through steel
Rounding ball is rotatably assorted with pedestal stainless steel disk；The bottom of pedestal stainless steel disk, the step is arranged in the stepper motor
Power output shaft into motor is connect straight up and with the insulated connecting rod being vertically arranged, and it is stainless that the insulated connecting rod passes through pedestal
Through-hole on steel disk is simultaneously connected with through-hole wall clearance fit, the top of insulated connecting rod and the middle part of copper sheet；
The copper sheet is located at the underface of electrode plate, and all pin electrodes stretch out the length below electrode plate by centre
It is gradually shortened around；One end of the noninductive resistance is connected in pedestal stainless steel disk with copper conductor, and the other end is by leading
Line ground connection.
As a preferred solution of the present invention, which further includes insulation connecting plate, and the insulation connecting plate is mounted on
The bottom of pedestal stainless steel disk, the stepper motor are mounted on insulation connecting plate, and the insulated connecting rod passes through insulation connection
Plate and with insulation connecting plate clearance fit.
As another preferred embodiment of the invention, the pin electrode be diameter 0.7-0.9mm, length 30-50mm not
Become rusty steel needle.
As an improvement of the present invention, a metal is cased in the electrode plate and on each pin electrode
Folder, the pin electrode are fixed in electrode plate by the metal clip of set on it.
As another improvement project of the invention, the dielectric disc is made of organic glass, with a thickness of 20mm, outer diameter
For 200mm, internal diameter 76mm；The underface of the inner circle of dielectric disc is arranged in the electrode plate.
Compared with prior art, the present invention has the following technical effect that
1, present apparatus structure is simple, and corona discharge power is big, and the area of corona discharge effect is big, can be to plate insulating materials
Surface carries out corona aging processing.
2, the sample treatment platform of the present apparatus uses rotational structure, and being placed in plate insulating materials on platform can be by
It is rotated according to scheduled revolving speed, so that more uniform by the effect of corona aging by the insulating materials of Corona discharge Treatment.
3, the present apparatus is small in size, can be placed into conventional temperature and humidity environmental test chamber, can be used for studying temperature, humidity
The influences of the factors to insulating materials corona aging characteristic such as variation.
4, the rotating platform of the present apparatus uses insulation system, can be to real-time monitoring electricity by the noninductive resistance of sampling
Corona electric current, the voltage applied by detection, can also monitor corona discharge power in real time.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of rotating platform spininess plate electrode corona aging experimental rig；
Fig. 2 is the structural schematic diagram of electrode plate, pin electrode and copper sheet arrangement；
Fig. 3 is the schematic diagram of pin electrode arrangement all in electrode plate.
In figure: 1-dielectric disc；2-insulation columns I；3-electrode plates；4-insulating supports；5-copper electrodes；6-needles
Electrode；7-copper connecting lines；8-pedestal stainless steel disks；9-insulation columns II；10-copper sheets；11-stepper motors；12—
Insulated connecting rod；13-noninductive resistances；14-insulation connecting plates；15-metal clips；16-steel balls；17-plate insulation materials
Material.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
As shown in Figure 1, a kind of rotating platform spininess plate electrode corona aging experimental rig includes dielectric disc 1, insulation branch
Column I 2, electrode plate 3, insulating support 4, copper electrode 5, pin electrode 6, copper connecting line 7, pedestal stainless steel disk 8, insulation column
II 9, copper sheet 10, stepper motor 11, insulated connecting rod 12 and noninductive resistance 13.
(in the present embodiment, dielectric disc 1 can pass through three insulation columns I to the setting of dielectric disc 1 on insulation column I 2
2 are supported), electrode plate 3 is arranged in below the middle part of dielectric disc 1 by insulating support 4.Dielectric disc 1 is by organic glass
Glass is made, with a thickness of 20mm, outer diameter 200mm, internal diameter 76mm；Electrode plate 3 be arranged in the inner circle of dielectric disc 1 just under
Side.Insulation column I 2 is made of organic glass, and the diameter for the insulation column I 2 connecting with dielectric disc 1 is 20mm, and length is
200mm can be the length that the voltage between 6 and copper sheet 10 adjusts insulation column I 2 according to pin electrode is applied to.Insulating support 4 by
Ambroin is made, and copper electrode 3 and dielectric disc 6 are attached fixation.
Copper electrode 5 is circular ring shape, and copper electrode 5 is arranged in electrode plate 3, is in electrode plate 3 and in copper electrode 5
Pin hole is arranged in array, as shown in Figures 2 and 3, a pin electrode 6 is provided in each pin hole, and pin electrode 6 passes through pin hole,
In Fig. 3,31 pin electrodes 6 are arranged altogether, in addition to the pin electrode of one, center, pin electrode is provided with 3 row array electrodes, the inside around center
The distance between two row array electrodes be 10mm, the distance between one row of outermost and the battle array electrode of an adjacent row are 5mm.Electrode
Plate 3 is connect with copper connecting line 7, and when test, copper connecting line 7 is connect with experiment power supply.In the present embodiment, copper electrode
3 are made of brass, and 3 lower part of electrode plate has 31 diameters for the pin hole of 1mm in array rule is arranged evenly, and pin electrode 6 is straight
The stainless pin of diameter 0.7-0.9mm, length 30-50mm.A metal is cased in electrode plate 3 and on each pin electrode 6
Folder 15, pin electrode 6 are fixed in electrode plate 3 by the metal clip 15 of set on it.Metal clip 15 is circle set, and intermediate aperture is straight
Diameter is 1.2mm, has the screw hole with fastening function on circle set side wall, by rotational fastener bolt, pin electrode 6 is fixed on metal clip
On.
Pedestal stainless steel disk 8 is arranged on insulation column II 9, the insulation column II 9 connecting with pedestal stainless steel disk 8
Diameter be 10mm, length 100mm, and can be the distance between 6 and copper sheet 10 according to pin electrode to the insulation column II 9
Length is adjusted.Copper sheet 10 is horizontally set on the top of pedestal stainless steel disk 8, circumferentially side in pedestal stainless steel disk 8
To being uniformly arranged groove I, bottom setting and the one-to-one groove II of groove I of copper sheet 10, each corresponding groove I with it is recessed
One steel ball 16 is set between slot II, and copper sheet 10 is rotatably assorted by steel ball 16 with pedestal stainless steel disk 8, at this
In embodiment, three pairs of groove Is and groove II are set, certain lubrication butter is coated in steel ball 16, is conducive to steel ball
16 are slidably matched with corresponding groove I and groove II.The bottom of pedestal stainless steel disk 8 is arranged in stepper motor 11, step
Power output shaft into motor 11 is connect straight up and with the insulated connecting rod 12 being vertically arranged, and insulated connecting rod 12 passes through pedestal not
Become rusty steel disk 8 on through-hole and with through-hole wall clearance fit, the top of insulated connecting rod 12 is connect with the middle part of copper sheet 10.In this reality
It applies in example, insulation connecting plate 14 is mounted on the bottom of pedestal stainless steel disk 8, and stepper motor 11 is mounted on absolutely by insulated bolt
On edge connecting plate 14, insulated connecting rod 12 pass through insulation connecting plate 14 and with insulation 14 clearance fit of connecting plate.Stepper motor 11 is defeated
Rotating torque out is output to copper sheet 10 (i.e. rotating platform) by insulated connecting rod 12, has both realized turning for rotating platform in this way
It is dynamic, the electrical isolation of the stepper motor 11 and rotating platform also realized.
Copper sheet 10 is made of brass or red copper, thickness 3mm, diameter 140mm.Insulated connecting rod 12 is made of epoxy resin, ruler
It is very little need to be with the dimensional fits of the power output shaft of stepper motor 11.Insulation connecting plate 14 is laminated fabric swatch by epoxy resin fiberglass
It is made, the size of insulation connecting plate 14 need to be with the fixing bolt dimensional fits of the shell of stepper motor 11.Pedestal stainless steel disk 8
It is made of 304 stainless steels, with a thickness of 3mm, diameter 140mm.Steel ball 16 is made of stainless steel, diameter 8mm.Stepping electricity
The torque of machine 11 should be greater than 1Nm.
Copper sheet 10 is located at the underface of electrode plate 3, and all pin electrodes 6 stretch out the length of 3 lower section of electrode plate in
Between be gradually shortened around, as shown in Figure 1, 2.One end of noninductive resistance 13 is connected in pedestal stainless steel disk 8 with copper conductor,
Signal collector can be connected to the both ends of noninductive resistance, by wired earth to obtain corona current signal by the other end.It is noninductive
Resistance 13 is high-precision noninductive resistance, and resistance value is 1-10 ohm.
Present apparatus structure is simple, and corona discharge power is big, and the area of corona discharge effect is big, and when test, plate is insulated
Material 17 is placed on copper sheet 10 (i.e. rotating platform), can carry out corona aging processing to the surface of plate insulating materials 17.By
In the rotational structure for using the driving of stepper motor 11 copper sheet 10 (i.e. rotating platform), the plate being placed on rotating platform insulate
Material 17 can be rotated according to scheduled revolving speed, so that by the plate insulating materials 17 of Corona discharge Treatment by corona aging
Effect it is more uniform, reduce because corona discharge unevenly caused by silastic material corona aging test result deviation,
Support can be provided for the corona aging characteristic test and assessment of plate insulating materials 17.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the scope of the claims of invention.
Claims (5)
1. a kind of rotating platform spininess plate electrode corona aging experimental rig, it is characterised in that: including dielectric disc (1), insulation
Pillar I (2), electrode plate (3), insulating support (4), copper electrode (5), pin electrode (6), copper connecting line (7), pedestal stainless steel
Disk (8), insulation column II (9), copper sheet (10), stepper motor (11), insulated connecting rod (12) and noninductive resistance (13)；
The dielectric disc (1) is arranged on insulation column I (2), and the electrode plate (3) is arranged by insulating support (4)
Below the middle part of dielectric disc (1)；
The copper electrode (5) is circular ring shape, and the copper electrode (5) is arranged on electrode plate (3), on the electrode plate (3)
And be located in copper electrode (5) and pin hole is set in array, a pin electrode (6), the pin electrode (6) are provided in each pin hole
Across pin hole, the electrode plate (3) connect with copper connecting line (7)；
The pedestal stainless steel disk (8) is arranged on insulation column II (9), and it is stainless that the copper sheet (10) is horizontally set on pedestal
The top of steel disk (8) is along the circumferential direction uniformly arranged groove I on the pedestal stainless steel disk (8), the copper sheet (10)
Bottom setting and the one-to-one groove II of groove I, are arranged a steel ball between each corresponding groove I and groove II
(16), the copper sheet (10) is rotatably assorted by steel ball (16) with pedestal stainless steel disk (8)；The stepper motor (11)
Bottom in pedestal stainless steel disk (8) is set, the power output shaft of the stepper motor (11) straight up and with set vertically
Insulated connecting rod (12) connection set, the insulated connecting rod (12) pass through the through-hole on pedestal stainless steel disk (8) and and through-hole wall
The top of clearance fit, insulated connecting rod (12) is connect with the middle part of copper sheet (10)；
The copper sheet (10) is located at the underface of electrode plate (3), and all pin electrodes (6) stretch out below electrode plate (3)
Length is gradually shortened around by centre；One end of the noninductive resistance (13) is connected to pedestal stainless steel disk with copper conductor
(8) on, the other end passes through wired earth.
2. a kind of rotating platform spininess plate electrode corona aging experimental rig according to claim 1, it is characterised in that: also
Including insulating connecting plate (14), insulation connecting plate (14) is mounted on the bottom of pedestal stainless steel disk (8), the stepping electricity
Machine (11) be mounted on insulation connecting plate (14) on, the insulated connecting rod (12) pass through insulation connecting plate (14) and with insulation connecting plate
(14) clearance fit.
3. a kind of rotating platform spininess plate electrode corona aging experimental rig according to claim 1, it is characterised in that: institute
State the stainless pin that pin electrode (6) are diameter 0.7-0.9mm, length 30-50mm.
4. a kind of rotating platform spininess plate electrode corona aging experimental rig according to claim 1, it is characterised in that: institute
A metal clip (15) is stated on electrode plate (3) and is cased on each pin electrode (6), the pin electrode (6) is by covering
Metal clip (15) thereon is fixed on electrode plate (3).
5. a kind of rotating platform spininess plate electrode corona aging experimental rig according to claim 1, it is characterised in that: institute
It states dielectric disc (1) to be made of organic glass, with a thickness of 20mm, outer diameter 200mm, internal diameter 76mm；The electrode plate (3)
It is arranged in the underface of the inner circle of dielectric disc (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811277407.3A CN109188228A (en) | 2018-10-30 | 2018-10-30 | A kind of rotating platform spininess plate electrode corona aging experimental rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811277407.3A CN109188228A (en) | 2018-10-30 | 2018-10-30 | A kind of rotating platform spininess plate electrode corona aging experimental rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109188228A true CN109188228A (en) | 2019-01-11 |
Family
ID=64940669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811277407.3A Pending CN109188228A (en) | 2018-10-30 | 2018-10-30 | A kind of rotating platform spininess plate electrode corona aging experimental rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109188228A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110333430A (en) * | 2019-06-17 | 2019-10-15 | 广东科学技术职业学院 | A kind of electrical specific purpose tool insulativity detection device |
| CN110736903A (en) * | 2019-10-31 | 2020-01-31 | 国网河北省电力有限公司电力科学研究院 | corona discharge research models |
| CN113075505A (en) * | 2021-03-25 | 2021-07-06 | 哈尔滨理工大学 | Insulating material electric-heat combined aging test device |
| CN113394662A (en) * | 2021-06-23 | 2021-09-14 | 长安大学 | Coupled multi-rod-flat-plate electrode corona stabilizing switch and working method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5585263A (en) * | 1978-12-22 | 1980-06-27 | Hitachi Ltd | Surge tester |
| CN104198823A (en) * | 2014-09-10 | 2014-12-10 | 国家电网公司 | System for acquiring trap parameters of solid dielectric material |
| CN104782738A (en) * | 2015-04-20 | 2015-07-22 | 浙江海洋学院 | Thawing method and device for prolonging freshness of thawed tunas |
| CN105227084A (en) * | 2015-09-30 | 2016-01-06 | 黑龙江兴安新能源股份有限公司 | A kind of solar panel bogey of rotatable, twofold |
| CN205427123U (en) * | 2016-03-16 | 2016-08-03 | 哈尔滨理工大学 | A corona initiation experimental apparatus for solid dielectric |
| CN108445310A (en) * | 2018-06-05 | 2018-08-24 | 沈阳工业大学 | A kind of polymer surfaces charge and trap level characteristic measuring device and method |
-
2018
- 2018-10-30 CN CN201811277407.3A patent/CN109188228A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5585263A (en) * | 1978-12-22 | 1980-06-27 | Hitachi Ltd | Surge tester |
| CN104198823A (en) * | 2014-09-10 | 2014-12-10 | 国家电网公司 | System for acquiring trap parameters of solid dielectric material |
| CN104782738A (en) * | 2015-04-20 | 2015-07-22 | 浙江海洋学院 | Thawing method and device for prolonging freshness of thawed tunas |
| CN105227084A (en) * | 2015-09-30 | 2016-01-06 | 黑龙江兴安新能源股份有限公司 | A kind of solar panel bogey of rotatable, twofold |
| CN205427123U (en) * | 2016-03-16 | 2016-08-03 | 哈尔滨理工大学 | A corona initiation experimental apparatus for solid dielectric |
| CN108445310A (en) * | 2018-06-05 | 2018-08-24 | 沈阳工业大学 | A kind of polymer surfaces charge and trap level characteristic measuring device and method |
Non-Patent Citations (1)
| Title |
|---|
| MAOQIANG BI等: ""Study on the Effects of Long Term Corona and Humidity Exposure of Silicone Ruber"", 《2016 IEEE INTERNATIONAL CONFERENCE ON HIGH VOLTAGE ENGINEERING AND APPLICATION (ICHVE) 》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110333430A (en) * | 2019-06-17 | 2019-10-15 | 广东科学技术职业学院 | A kind of electrical specific purpose tool insulativity detection device |
| CN110736903A (en) * | 2019-10-31 | 2020-01-31 | 国网河北省电力有限公司电力科学研究院 | corona discharge research models |
| CN110736903B (en) * | 2019-10-31 | 2021-08-17 | 国网河北省电力有限公司电力科学研究院 | Corona discharge research device |
| CN113075505A (en) * | 2021-03-25 | 2021-07-06 | 哈尔滨理工大学 | Insulating material electric-heat combined aging test device |
| CN113394662A (en) * | 2021-06-23 | 2021-09-14 | 长安大学 | Coupled multi-rod-flat-plate electrode corona stabilizing switch and working method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109188228A (en) | A kind of rotating platform spininess plate electrode corona aging experimental rig | |
| CN103439639A (en) | XLPE cable insulation aging state assessment method | |
| CN106771894B (en) | A kind of insulating materials voltage ageing capability evaluating device and detection method | |
| CN104880653B (en) | A kind of needle plate electrode corona discharge assembly for alternating current-direct current high-potting | |
| CN104133112B (en) | A kind of vacuum high-temperature conductivity measuring apparatus and method | |
| CN116973609B (en) | Power grid pillar composite insulator detection device | |
| CN107884731B (en) | Torsion type superconducting tape critical current detection device | |
| CN103901276A (en) | Measurement device and method for detecting oilpaper conductivity in high-voltage DC electric field | |
| CN111856219A (en) | Creeping discharge test device used in insulating gas under impulse voltage | |
| CN113075505B (en) | Insulating material electric-heat combined aging test device | |
| Nie et al. | Effect of frequency on electrical tree characteristics in silicone rubber | |
| CN203929698U (en) | A kind ofly simulate the test unit that silicone rubber composite bushing is aging | |
| Notingher et al. | The influence of water trees on permittivity and loss factor of medium voltage cables polyethylene insulation | |
| Marci et al. | Dielectric properties of natural esters | |
| Liu et al. | Analysis of AC 500kV XLPE Submarine Cable Insulation Laboratory Aging Condition Based on Frequency Domain Dielectric Spectroscopy | |
| CN207817141U (en) | A kind of local discharge detection device of power switch cabinet | |
| CN111880050A (en) | Oil paper sleeve damp positioning method based on polarity reversal time domain dielectric response | |
| Liu et al. | Evaluation method of stator insulation for direct-drive wind turbine generator based on accelerated multi-factor aging | |
| CN110749804A (en) | Multi-pin plate electrode for artificial uniform corona accelerated aging test of composite insulator | |
| CN205120941U (en) | Measurement device for be used for high temperature superconducting tape | |
| CN117368620B (en) | Composite insulator aging experimental device | |
| Wolny et al. | Influence of ageing and moisture degree of aramid-oil insulation on depolarization current | |
| Tripathi et al. | Understanding the Aging of XLPE Cable Insulation Using Impedance Analyzer | |
| Hao et al. | Analysis of Electrical and Physicochemical Properties of GIS Spacer with Long-term Service | |
| Chen et al. | Electrical aging characteristics of natural ester oil-paper insulation respectively considering temperature and moisture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190111 |