CN110346701A - A kind of shelf depreciation acousto-optic-electric combined measurement platform under electrothermal forces multi- scenarios method - Google Patents
A kind of shelf depreciation acousto-optic-electric combined measurement platform under electrothermal forces multi- scenarios method Download PDFInfo
- Publication number
- CN110346701A CN110346701A CN201910760124.2A CN201910760124A CN110346701A CN 110346701 A CN110346701 A CN 110346701A CN 201910760124 A CN201910760124 A CN 201910760124A CN 110346701 A CN110346701 A CN 110346701A
- Authority
- CN
- China
- Prior art keywords
- cavity
- test
- high pressure
- guide rod
- temperature
- 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
- G01R31/1209—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 using acoustic measurements
-
- 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
- G01R31/1218—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 using optical methods; using charged particle, e.g. electron, beams or X-rays
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention belongs to the shelf depreciation acousto-optic-electric combined measurement platforms under flash-over test technical field more particularly to a kind of electrothermal forces multi- scenarios method, including what is be sequentially connected: up voltage device, casing, test cavity；Wherein, casing is connected with test inside cavity by high pressure guide rod, and fixed insulation sample, heating electrode are connect by the metallic support rod jack external with test cavity between high pressure guide rod end and heating electrode；Test is equipped with ultrasonic sensor on the outside of cavity lower part, the central flange for testing cavity is equipped with quartz window sheet, photomultiplier tube of the outside of quartz window sheet equipped with alignment insulation sample, the end for testing cavity install nonmetallic flanged plate, are equipped with extra-high video sensor on the outside of nonmetallic flanged plate.It can be achieved to apply while electric stress, temperature stress and mechanical stress, simulate the various temperature mechanical stress condition in actual condition, be conducive to grasp temperature and mechanical stress to insulating part along face shelf depreciation and the affecting laws of flashover signature.
Description
Technical field
The invention belongs to the shelf depreciations under flash-over test technical field more particularly to a kind of electrothermal forces multi- scenarios method
Acousto-optic-electric combined measurement platform.
Background technique
Extra-high voltage switch equipment is the key equipment of smart grid, and data statistics in recent years shows insulation fault always
One of an important factor for being influence GIS (Gas Insulated Switchgear) reliability.Epoxy insulator is extra-high presses off
The critical elements in electrical equipment are closed, by research epoxy insulator defect diagonsis and O&M technology, reduce disc insulator
Failure rate improves the operational reliability of extra-high voltage switch equipment, significant for the safe and stable operation of power grid.
On the one hand, the tiny flaw generated in disc insulator manufacturing process is difficult to find, and passes through delivery test
Disc insulator, it would still be possible to cause failure in the process of running；On the other hand, in the operational process of extra-high voltage switch equipment,
Under the action of electrothermal forces multi- scenarios method, may cause epoxy insulator defect generation, development even cause flashover, at present for
The analysis interpretation of disc insulator failure cause and defect type still lacks research foundation, does not grasp flashover mechanism yet, so far
It is difficult to predict, seriously affects extra-high voltage electrical equipment reliability.
Current flash-over test research both domestic and external is mainly on voltage stress, and insulating part surface in actual condition
Temperature gradient can be generated due to the Joule heat of high pressure guide rod, and since the unbalance stress in gravity and assembling process can make absolutely
Edge part is by mechanical stress.Therefore be badly in need of invent one kind can meet electric stress, temperature stress, mechanical stress three applies jointly and
The test platform of regulation.And for crawl indication of multiple local discharge signal, based on the platform can carry out ultrasonic wave, photomultiplier tube,
The experimental study of ultrahigh frequency partial discharge signal measurement is the Characteristics of Partial Discharge and flashover of GIS insulating part under actual condition
Characteristic research lays the foundation.
Summary of the invention
In view of the above-mentioned problems, the invention proposes the shelf depreciation acousto-optic-electric combined measurements under a kind of electrothermal forces multi- scenarios method
Platform, including what is be sequentially connected: up voltage device, casing, test cavity；Wherein, casing and test inside cavity pass through high pressure
Guide rod connection, fixed insulation sample, heating electrode pass through metallic support rod and test between high pressure guide rod end and heating electrode
Jack connection outside cavity；Test is equipped with ultrasonic sensor on the outside of cavity lower part, tests the central flange dress of cavity
There is quartz window sheet, equipped with the photomultiplier tube of alignment insulation sample, non-gold is installed in the end for testing cavity in the outside of quartz window sheet
Belong to flanged plate, extra-high video sensor is installed on the outside of nonmetallic flanged plate.
The up voltage device includes being sequentially connected: testing transformer, protective resistance, coupled capacitor, by casing to
High pressure guide rod applies alternating voltage.
The heating electrode is round aluminium sheet, and heating ceramic patch and micro radio temperature sensing are posted in aluminium sheet lower surface
Device.
The jack is 3T type oil formula jack, is used to apply extrusion mechanical stress to insulation sample.
The high pressure guide rod is fixed on the center of test cavity by disc insulator, and high pressure guide rod end passes through insulation branch
Dagger is fixed with test cavity top.
The test cavity is made and is equipped with valve and air gauge using aluminium alloy, is filled with 0.5MPa in test cavity
SF6 gas simulate the insulation conditions of true GIS.
The insulation sample be cylinder epoxy resin, by grading shield fold up high pressure guide rod end and heating electrode it
Between.
The ceramic heating flake draws test cavity by conducting wire and airtight aviation plug, later conducting wire connection temperature control box and
DC power supply, the temperature signal control DC power supply which receives according to radio temperature sensor cut-off to control
The temperature of electrode is heated, realizes 0-80 DEG C of controllable adjustment.
The jack is by way of adjusting lifting height as calibration insulation sample stress.
The quartz window sheet is installed on the outside on front side of test cavity by flange and seal with O ring, ensures during installation
The center of circle of quartz window sheet and the center for the sample that insulate are on one wire；The bracket of photomultiplier tube is installed outside quartz window sheet.
The present invention has the advantage that
(1) it can be achieved to apply while electric stress, temperature stress and mechanical stress, it is a variety of in analog actual condition
Thermomechanical stress condition.
(2) by installation acousto-optic-electric combined measurement platform, be conducive to grasp temperature and mechanical stress to insulating part along face office
The affecting laws of portion's flash-over characteristic and flashover property.
Detailed description of the invention
Fig. 1 is the shelf depreciation acousto-optic-electric combined measurement platform signal under a kind of electrothermal forces multi- scenarios method provided by the invention
Figure；
Fig. 2 is the shelf depreciation acousto-optic-electric combined measurement platform pilot scale under a kind of electrothermal forces multi- scenarios method provided by the invention
Test cavity body structure front view schematic diagram；
Fig. 3 is the shelf depreciation acousto-optic-electric combined measurement platform pilot scale under a kind of electrothermal forces multi- scenarios method provided by the invention
Test cavity body structure side view schematic diagram.
Wherein: 1 is testing transformer；2 be protective resistance；3 be coupled capacitor；4 be casing；5 is with barometric valves；
6 be high pressure guide rod；7 be disc insulator；8 be test cavity；9 be insulation sample；10 be uniform cover up and down；11 be insulating supporting
Column；12 be heating electrode；13 be ceramic heating flake；14 be radio temperature sensor；15 be metal support column；16 be airtight aviation
Plug；17 be ultrasonic sensor (PZT)；18 be nonmetal medium window；19 be extra-high video sensor (UHF)；20 be temperature control box；21
For DC power supply；22 be jack；23 be quartz medium window；24 be photomultiplier tube (PMT).
Specific embodiment
The invention proposes the shelf depreciation acousto-optic-electric combined measurement platforms under a kind of electrothermal forces multi- scenarios method, including successively
Connected: up voltage device, casing, test cavity；Wherein, casing is connected with test inside cavity by high pressure guide rod, high pressure
Fixed insulation sample, heating electrode pass through metallic support rod and the external jack of test cavity between guide rod end and heating electrode
Connection；Test is equipped with ultrasonic sensor on the outside of cavity lower part, tests the central flange of cavity equipped with quartz window sheet, quartz
Photomultiplier tube of the outside of window equipped with alignment insulation sample, nonmetallic flanged plate is installed in the end for testing cavity, nonmetallic
Extra-high video sensor is installed on the outside of flanged plate.
The up voltage device includes being sequentially connected: testing transformer, protective resistance, coupled capacitor, by casing to
High pressure guide rod applies alternating voltage.
The heating electrode is round aluminium sheet, and heating ceramic patch and micro radio temperature sensing are posted in aluminium sheet lower surface
Device.
The jack is 3T type oil formula jack, is used to apply extrusion mechanical stress to insulation sample.
The high pressure guide rod is fixed on the center of test cavity by disc insulator, and high pressure guide rod end passes through insulation branch
Dagger is fixed with test cavity top.
The test cavity is made and is equipped with valve and air gauge using aluminium alloy, is filled with 0.5MPa in test cavity
SF6 gas simulate the insulation conditions of true GIS.
The insulation sample be cylinder epoxy resin, by grading shield fold up high pressure guide rod end and heating electrode it
Between.
The ceramic heating flake draws test cavity by conducting wire and airtight aviation plug, later conducting wire connection temperature control box and
DC power supply, the temperature signal control DC power supply which receives according to radio temperature sensor cut-off to control
The temperature of electrode is heated, realizes 0-80 DEG C of controllable adjustment.
The jack is by way of adjusting lifting height as calibration insulation sample stress.
The quartz window sheet is installed on the outside on front side of test cavity by flange and seal with O ring, ensures during installation
The center of circle of quartz window sheet and the center for the sample that insulate are on one wire；The bracket of photomultiplier tube is installed outside quartz window sheet.
The present invention is described in detail with reference to the accompanying drawings and examples.
In shelf depreciation acousto-optic-electric combined measurement platform schematic diagram under electrothermal forces multi- scenarios method shown in Fig. 1, high pressure
Guide rod 6 is fixed on the center of test cavity 8 by insulator 7, and insulation sample 9 is placed on 6 lower section of high pressure guide rod, and lower end passes through gold
Belong to electrode ground connection.Testing transformer 1 applies power frequency to high pressure guide rod 6 by casing 4 by protective resistance 2 and coupled capacitor 3 and hands over
Galvanic electricity pressure.
It is tested in inside cavity structural schematic diagram in test platform shown in Fig. 2, insulation sample 9 is fixedly mounted on up and down
Between grading shield 10, bottom crown is heating pole plate 12.Temperature control system includes ceramic heating flake 13, temperature sensor 14, temperature
Control case 20 and DC power supply 21.Wherein ceramic heating flake 13 and temperature sensor 14 are fixed on the lower end of heating electrode 12, temperature
Case 20 and DC power supply 21 are controlled in the outside of cavity, is connect by conducting wire with ceramic heating flake 13, finger can be set in temperature control box 20
Determine temperature, reaches assigned temperature by 14 feedback signal of radio temperature sensor to temperature control box 20, then control DC power supply 21
Disconnection, when feedback temperature signal be lower than assigned temperature, then control the opening of DC power supply 21.Mechanical device includes insulating supporting
Column 11, metal support 15 and jack 22, generate extrusion stress to insulation sample 9 by adjusting the height of jack, absolutely
Edge support column 11 plays support fixation, prevents the lifting of 6 height of high pressure guide rod.Ultrasonic sensor 17 and extra-high in Fig. 2
Video sensor 19 is the ultrasonic signal and electromagnetic wave signal for measuring shelf depreciation and generating.
In test cavity structural side view shown in Fig. 3, photomultiplier tube 24 is the optical signal for measuring shelf depreciation and generating,
Quartz medium window 23 is that the optical signal on insulation 9 surface of sample when ensuring to occur shelf depreciation can be transferred to photomultiplier tube 24.
Test platform provided by the present invention specific steps are as follows:
1, under conditions of not applying alternating voltage, vacuum pump is respectively connected to on barometric valve 5, to two chambers
Room is evacuated to vacuum degree up to -50Kpa respectively.Then it is filled with the SF of 0.5MPa respectively into chamber6。
2, the switch of temperature control box 20 and DC power supply 21 is opened, temperature is set to 20 DEG C.Until temperature be stabilized to it is specified
Temperature.
3, it turns on the power switch, increases the output voltage of testing transformer 1 to measuring device ultrasonic sensor 17, superfrequency
Sensor 19 and photomultiplier tube 24 measure local discharge signal, record start discharge voltage.
4, continue boosted output voltages until edge flashing, record flashover voltage, open test transformation occur for insulation sample 9
Device 1 and power supply.
5, change setting temperature to 60 DEG C and 80 DEG C using temperature control box 20, temperature repeats step 3,4 after stablizing.
6, compare 20 DEG C, 60 DEG C and 80 DEG C of temperature stress when shelf depreciation acousto-optic electric signal, firing potential and
Flashover voltage.
7, change mechanical stress by changing the lifting height of jack 22, setting stress be 20MPa, 60MPa and
80MPa repeats step 3,4.
8, compare mechanical stress 20MPa, 60MPa and shelf depreciation acousto-optic electric signal when 80MPa, firing potential with
And flashover voltage.
9, apply under temperature and mechanical stress at the same time, carry out step 3,4.
10, shelf depreciation acousto-optic electric signal when applying simultaneously of comparison temperature and mechanical stress, firing potential and
Flashover voltage.
Embodiment is merely preferred embodiments of the present invention, but scope of protection of the present invention is not limited thereto, is appointed
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of, all by what those familiar with the art
It is covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with scope of protection of the claims
It is quasi-.
Claims (8)
1. the shelf depreciation acousto-optic-electric combined measurement platform under a kind of electrothermal forces multi- scenarios method, which is characterized in that including successively phase
Even: up voltage device, casing, test cavity；Wherein, casing is connected with test inside cavity by high pressure guide rod, and high pressure is led
Fixed insulation sample, heating electrode are connected by the external jack of metallic support rod and test cavity between bar end and heating electrode
It connects；Heating electrode is round aluminium sheet, and heating ceramic patch and micro radio temperature sensor, ceramic heat are posted in aluminium sheet lower surface
Piece draws test cavity by conducting wire and airtight aviation plug, later conducting wire connection temperature control box and DC power supply, the temperature control box root
The temperature for cut-offfing to control heating electrode of the temperature signal control DC power supply received according to radio temperature sensor, is realized
0-80 DEG C of temperature-controllable is adjusted；Jack is used to apply extrusion mechanical stress to insulation sample by adjusting lifting height, real
Existing 0-80MPa stress controllable adjustment；Up voltage device applies alternating voltage to high pressure guide rod by casing；Test cavity lower part
Outside is equipped with ultrasonic sensor, tests the central flange of cavity equipped with quartz window sheet, the outside of quartz window sheet is equipped with alignment
The photomultiplier tube of insulation sample, the end for testing cavity are installed nonmetallic flanged plate, are equipped on the outside of nonmetallic flanged plate
Extra-high video sensor.
2. platform according to claim 1, which is characterized in that the up voltage device includes being sequentially connected: test transformation
Device, protective resistance, coupled capacitor apply alternating voltage to high pressure guide rod by casing.
3. platform according to claim 1, which is characterized in that the jack is 3T type oil formula jack, is used to insulation
Sample applies extrusion mechanical stress.
4. platform according to claim 1, which is characterized in that the high pressure guide rod is fixed on test cavity by disc insulator
The center of body, high pressure guide rod end are fixed by insulating supporting column and test cavity top.
5. platform according to claim 1, which is characterized in that the test cavity is made using aluminium alloy and is equipped with valve
And air gauge, the SF6 gas of 0.5MPa is filled in test cavity to simulate the insulation conditions of true GIS.
6. platform according to claim 1, which is characterized in that the insulation sample is cylinder epoxy resin, passes through grading shield
It folds up between high pressure guide rod end and heating electrode.
7. platform according to claim 1, which is characterized in that the jack is by adjusting lifting height as calibration insulation
The mode of sample stress.
8. platform according to claim 1, which is characterized in that the quartz window sheet is installed on by flange and seal with O ring
The outside on front side of cavity is tested, the center in the center of circle and insulation sample that ensure quartz window sheet during installation is on one wire；Quartz
The bracket of photomultiplier tube is installed outside window.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910760124.2A CN110346701A (en) | 2019-08-16 | 2019-08-16 | A kind of shelf depreciation acousto-optic-electric combined measurement platform under electrothermal forces multi- scenarios method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910760124.2A CN110346701A (en) | 2019-08-16 | 2019-08-16 | A kind of shelf depreciation acousto-optic-electric combined measurement platform under electrothermal forces multi- scenarios method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110346701A true CN110346701A (en) | 2019-10-18 |
Family
ID=68185333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910760124.2A Pending CN110346701A (en) | 2019-08-16 | 2019-08-16 | A kind of shelf depreciation acousto-optic-electric combined measurement platform under electrothermal forces multi- scenarios method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110346701A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110618363A (en) * | 2019-11-01 | 2019-12-27 | 云南电网有限责任公司电力科学研究院 | GIS/GIL insulation flashover voltage waveform measuring platform |
| CN110687415A (en) * | 2019-11-11 | 2020-01-14 | 云南电网有限责任公司电力科学研究院 | GIS/GIL insulation flashover waveform detection system |
| CN111562470A (en) * | 2020-04-30 | 2020-08-21 | 南京理工大学 | PZT discharge performance testing device with temperature control and overload simulation system |
| CN113466635A (en) * | 2021-05-18 | 2021-10-01 | 华北电力大学 | Material surface insulation and partial discharge characteristic measuring device |
| CN113532541A (en) * | 2021-07-30 | 2021-10-22 | 华南理工大学 | Multi-parameter testing device, method, equipment and medium suitable for epoxy composite material |
| CN113985221A (en) * | 2021-09-24 | 2022-01-28 | 南方电网科学研究院有限责任公司 | High-performance epoxy insulating part local overheating defect simulation system and method |
| CN114295265A (en) * | 2021-09-15 | 2022-04-08 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Method and system for detecting normal internal thermal stress of GIS basin-type insulator |
| CN114690008A (en) * | 2022-05-31 | 2022-07-01 | 国网天津市电力公司电力科学研究院 | Device and method for observing discharge and surface flashover of GIS insulator induced by particles |
| CN118191534A (en) * | 2024-05-15 | 2024-06-14 | 国网吉林省电力有限公司电力科学研究院 | Electrical test cavity for simulating GIS internal insulation characteristic under severe cold condition and test method |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1103818A2 (en) * | 1999-11-29 | 2001-05-30 | General Electric Company | A PDA coupler containing a flexible joint |
| KR20030032280A (en) * | 2001-10-17 | 2003-04-26 | 엘지전선 주식회사 | The apparatus measuring dielectric strength of insulating material |
| CN102096032A (en) * | 2011-01-06 | 2011-06-15 | 山东电力研究院 | Experimental facility and method for electric heating combined stress aging with oil-paper insulation of transformer |
| CN201926732U (en) * | 2011-01-06 | 2011-08-10 | 山东电力研究院 | Experimental device for electrical/thermal stress aging of insulation oil paper of voltage transformer |
| CN102928744A (en) * | 2011-08-12 | 2013-02-13 | 上海市电力公司 | Partial discharge simulator of metal closed composite apparatus |
| CN104076232A (en) * | 2014-07-17 | 2014-10-01 | 国网上海市电力公司 | Transformer oil-paper insulation electricity-heating unite ageing test device |
| CN204008986U (en) * | 2014-07-07 | 2014-12-10 | 广东电网公司电力科学研究院 | Test fuel tank |
| CN105629139A (en) * | 2015-12-29 | 2016-06-01 | 武汉大学 | Gas insulated electrical equipment partial discharge multi-source combined monitoring experiment device |
| CN207066608U (en) * | 2017-05-19 | 2018-03-02 | 国网青海省电力公司西宁供电公司 | Switch cubicle detects warning device and system |
| CN207440240U (en) * | 2017-11-21 | 2018-06-01 | 中国南方电网有限责任公司 | Electrical strength testing device |
| CN109239539A (en) * | 2018-07-23 | 2019-01-18 | 国家电网有限公司 | A kind of device and experimental method for studying epoxy insulation material Characteristics of Partial Discharge |
-
2019
- 2019-08-16 CN CN201910760124.2A patent/CN110346701A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1103818A2 (en) * | 1999-11-29 | 2001-05-30 | General Electric Company | A PDA coupler containing a flexible joint |
| KR20030032280A (en) * | 2001-10-17 | 2003-04-26 | 엘지전선 주식회사 | The apparatus measuring dielectric strength of insulating material |
| CN102096032A (en) * | 2011-01-06 | 2011-06-15 | 山东电力研究院 | Experimental facility and method for electric heating combined stress aging with oil-paper insulation of transformer |
| CN201926732U (en) * | 2011-01-06 | 2011-08-10 | 山东电力研究院 | Experimental device for electrical/thermal stress aging of insulation oil paper of voltage transformer |
| CN102928744A (en) * | 2011-08-12 | 2013-02-13 | 上海市电力公司 | Partial discharge simulator of metal closed composite apparatus |
| CN204008986U (en) * | 2014-07-07 | 2014-12-10 | 广东电网公司电力科学研究院 | Test fuel tank |
| CN104076232A (en) * | 2014-07-17 | 2014-10-01 | 国网上海市电力公司 | Transformer oil-paper insulation electricity-heating unite ageing test device |
| CN105629139A (en) * | 2015-12-29 | 2016-06-01 | 武汉大学 | Gas insulated electrical equipment partial discharge multi-source combined monitoring experiment device |
| CN207066608U (en) * | 2017-05-19 | 2018-03-02 | 国网青海省电力公司西宁供电公司 | Switch cubicle detects warning device and system |
| CN207440240U (en) * | 2017-11-21 | 2018-06-01 | 中国南方电网有限责任公司 | Electrical strength testing device |
| CN109239539A (en) * | 2018-07-23 | 2019-01-18 | 国家电网有限公司 | A kind of device and experimental method for studying epoxy insulation material Characteristics of Partial Discharge |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110618363A (en) * | 2019-11-01 | 2019-12-27 | 云南电网有限责任公司电力科学研究院 | GIS/GIL insulation flashover voltage waveform measuring platform |
| CN110687415A (en) * | 2019-11-11 | 2020-01-14 | 云南电网有限责任公司电力科学研究院 | GIS/GIL insulation flashover waveform detection system |
| CN111562470A (en) * | 2020-04-30 | 2020-08-21 | 南京理工大学 | PZT discharge performance testing device with temperature control and overload simulation system |
| CN113466635A (en) * | 2021-05-18 | 2021-10-01 | 华北电力大学 | Material surface insulation and partial discharge characteristic measuring device |
| CN113466635B (en) * | 2021-05-18 | 2023-10-10 | 华北电力大学 | Material surface insulation and partial discharge characteristic measuring device |
| CN113532541A (en) * | 2021-07-30 | 2021-10-22 | 华南理工大学 | Multi-parameter testing device, method, equipment and medium suitable for epoxy composite material |
| CN114295265A (en) * | 2021-09-15 | 2022-04-08 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Method and system for detecting normal internal thermal stress of GIS basin-type insulator |
| CN114295265B (en) * | 2021-09-15 | 2023-11-14 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Method and system for detecting normal internal thermal stress of GIS basin-type insulator |
| CN113985221A (en) * | 2021-09-24 | 2022-01-28 | 南方电网科学研究院有限责任公司 | High-performance epoxy insulating part local overheating defect simulation system and method |
| CN114690008A (en) * | 2022-05-31 | 2022-07-01 | 国网天津市电力公司电力科学研究院 | Device and method for observing discharge and surface flashover of GIS insulator induced by particles |
| CN118191534A (en) * | 2024-05-15 | 2024-06-14 | 国网吉林省电力有限公司电力科学研究院 | Electrical test cavity for simulating GIS internal insulation characteristic under severe cold condition and test method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110346701A (en) | A kind of shelf depreciation acousto-optic-electric combined measurement platform under electrothermal forces multi- scenarios method | |
| CN103105568B (en) | Aging and the local discharge integrated experimental provision of transformer oil paper insulated electrothermic associating | |
| CN102096032B (en) | Experimental facility and method for electric heating combined stress aging with oil-paper insulation of transformer | |
| CN109239539B (en) | Device and experimental method for researching partial discharge characteristics of epoxy insulating material | |
| CN104076232B (en) | Transformer oil-paper insulation electricity-heating unite ageing test device | |
| CN203811754U (en) | An enclosed type gas insulation combined electric appliance partial discharge detection device | |
| CN201926732U (en) | Experimental device for electrical/thermal stress aging of insulation oil paper of voltage transformer | |
| CN104375071A (en) | Decomposition simulation experiment method for sulfur hexafluoride gas insulating medium electro-thermo combination | |
| CN107390064A (en) | A kind of ageing test apparatus and application method of insulating oil or paper oil insulation | |
| CN101713721A (en) | Experimental device and experimental method for transformer oilpaper insulating thermal ageing | |
| CN105388406A (en) | Gas insulated electric equipment partial discharge multi-source joint detection method | |
| CN206638775U (en) | A kind of transformer fault simulation experimental provision | |
| CN109406961A (en) | A kind of power electronic devices insulation test device | |
| CN104931810A (en) | Composite insulator charging and UV aging monitoring device based on thermocycling system | |
| CN110426609A (en) | A kind of more partial discharge form simulations of transformer and test macro | |
| US20200393315A1 (en) | High frequency response pressure sensor based on direct current glow discharge plasma principle | |
| CN108828413A (en) | Transformer insulated cardboard aging quantitative evaluating method based on effect of electromagnetic field | |
| CN111751684A (en) | Insulation material's along surface flashover discharge measuring device under high frequency excitation | |
| CN202512205U (en) | Paper oil insulation fault simulation model of inverted current transformer | |
| CN110308388A (en) | It is a kind of for testing the device and test method of the electric property of GIS insulated pull rod | |
| CN105203848B (en) | The detection means and its method of complex impedance spectra | |
| CN106771623B (en) | The test device of insulating materials resistance and resistivity under a kind of hot environment | |
| CN206411236U (en) | High-tension circuit breaker analog device | |
| CN115685000B (en) | Insulation medium leakage current measurement system under accurate temperature and humidity control | |
| CN107015132A (en) | A kind of different metal material is to SF6Exchange influence experimental provision and its method that PD is decomposed |
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 |
Application publication date: 20191018 |
|
| RJ01 | Rejection of invention patent application after publication |