CN110361638A - Study the pilot system and its method that gas diffusion characteristic is decomposed in GIL - Google Patents
Study the pilot system and its method that gas diffusion characteristic is decomposed in GIL Download PDFInfo
- Publication number
- CN110361638A CN110361638A CN201910694266.3A CN201910694266A CN110361638A CN 110361638 A CN110361638 A CN 110361638A CN 201910694266 A CN201910694266 A CN 201910694266A CN 110361638 A CN110361638 A CN 110361638A
- Authority
- CN
- China
- Prior art keywords
- cavity
- high voltage
- gas
- linkage section
- endpiece
- 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.)
- Withdrawn
Links
- 238000009792 diffusion process Methods 0.000 title claims abstract description 85
- 238000000034 method Methods 0.000 title abstract description 12
- 238000001514 detection method Methods 0.000 claims abstract description 56
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 34
- 238000005070 sampling Methods 0.000 claims abstract description 29
- 238000012360 testing method Methods 0.000 claims abstract description 25
- 230000007547 defect Effects 0.000 claims abstract description 23
- 238000004458 analytical method Methods 0.000 claims abstract description 16
- 238000011160 research Methods 0.000 claims abstract description 14
- 230000001681 protective effect Effects 0.000 claims abstract description 8
- 239000012212 insulator Substances 0.000 claims description 41
- 238000005273 aeration Methods 0.000 claims description 23
- 238000009413 insulation Methods 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 14
- 230000005611 electricity Effects 0.000 claims description 7
- 230000015556 catabolic process Effects 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 2
- 238000010998 test method Methods 0.000 claims description 2
- 230000005684 electric field Effects 0.000 abstract description 9
- 230000035945 sensitivity Effects 0.000 abstract description 7
- 238000009826 distribution Methods 0.000 abstract description 5
- 238000012631 diagnostic technique Methods 0.000 abstract description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 16
- 229910018503 SF6 Inorganic materials 0.000 description 10
- 238000003745 diagnosis Methods 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004445 quantitative analysis Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- VMQPMGHYRISRHO-UHFFFAOYSA-N benzvalene Chemical group C1=CC2C3C1C32 VMQPMGHYRISRHO-UHFFFAOYSA-N 0.000 description 2
- 238000009530 blood pressure measurement Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 238000011897 real-time detection Methods 0.000 description 2
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 241000233855 Orchidaceae Species 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000011257 shell material Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
-
- 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
-
- 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
- G01R31/1263—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 solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/1281—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 solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of liquids or gases
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
- G01N2013/003—Diffusion; diffusivity between liquids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N2030/022—Column chromatography characterised by the kind of separation mechanism
- G01N2030/025—Gas chromatography
Abstract
The invention discloses pilot systems and its method that gas diffusion characteristic is decomposed in a kind of research GIL, are related to SF in GIL6The diffusion property analogue technique of gas discharge decomposition and its product.This system is: pressure regulation platform, isolating transformer, testing transformer, protective resistance and divider are sequentially connected; detection impedance is connected in series in divider low-pressure side; partial discharge detection instrument is connected with the output end of detection impedance; the output end of divider decomposes gas diffusion chamber body with electric discharge and is connected, and gas chromatograph decomposes each block sampling detection mouth of gas diffusion chamber body with electric discharge by hose and connect.This method is: 1. defect is arranged；2. being vacuum-treated；3. inflating；4. measuring partial discharge starting voltage and the critical partial discharge quantity of electric charge；5. partial discharge node is arranged；6. gas collecting and component analysis.Analog GIL internal electric field distribution of the present invention and decomposition gas diffusion process, detection sensitivity is high, and accuracy is good, the application study suitable for each teaching and scientific research institution to the apparatus insulated diagnostic techniques of GIL.
Description
Technical field
The present invention relates to SF in GIL6The diffusion property analogue technique of gas discharge decomposition and its product, more particularly to be one
The pilot system and its method of gas diffusion characteristic are decomposed in kind research GIL.
Background technique
The gas-insulated metal-enclosed technology of GIL() generally use SF6(sulfur hexafluoride) gas as major insulation medium, has
Voltage class is high, discharge capacity is big, installation and it is easy to maintain the advantages that, at home and abroad water power, nuclear power station and special across river etc.
It is largely used in occasion.GIL is mainly made of disc insulator, conductor and shell, in disc insulator and metal electrode
It is insulation weak link with gas intersection, when disc insulator existing defects, Yi Fasheng shelf depreciation causes insulating part to damage
Bad and SF6It decomposes, this can seriously affect GIL stable operation.To solve this problem, eudiometry can be used to carry out GIL
Insulation diagnosis to find out existing solid insulation defect in GIL in the electric discharge early stage of development, and implements corresponding maintenance measure.
Eudiometry is to the effect that SF6Feature decomposition object concentration variation is tested and analyzed, but due to decompose gas yield compared with
It is few, it is difficult to spread rapidly uniformly in larger-size GIL cavity, it is poor that this has the decomposition gas concentration of each point in cavity
It is different, to influence insulation diagnosis result.And the axial dimension of GIL is far longer than radial dimension, therefore compared to radial diffusion, axis
It is become apparent to diffusion property for decomposing the influence that gas concentration changes.It is research diffusion effect to the shadow for decomposing gas concentration
It rings, to improve the accuracy of insulation diagnosis, a set of GIL disc insulator discharge defect and decomposition gas of capable of simulating is needed to expand
Dissipate the pilot system and its method of characteristic.
Summary of the invention
For the requirement for decomposing gas diffusion characteristic test in research GIL, the present invention provides decompose in a kind of research GIL
The pilot system and its method of gas diffusion characteristic.The pilot system can satisfy the field distribution and long pipeline knot of practical GIL
Structure feature, extended capability is strong, vdiverse in function, can be used to the electric discharge resolution characteristic under research GIL difference disc insulator defect,
It can also be used in the diffusion property for studying different decomposition gas.The present invention can the existing benzvalene form insulation in experiment indoor simulation GIL
Sub- defect and corresponding shelf depreciation, and pass through the decomposition gas concentration delta data on Partial Discharge and different location,
Realize under different defects and strength of discharge decomposition gas diffusion characteristic study, for improve GIL insulation diagnosis accuracy and
Reliability provides experimental and theoretical study basis.
One, pilot system
Including pressure regulation platform, isolating transformer, testing transformer, protective resistance and divider, detection impedance, partial discharge detection instrument, put
Electrolysis gas diffusion cavity and gas chromatograph；
Its position and connection relationship are:
Pressure regulation platform, isolating transformer, testing transformer, protective resistance and divider are sequentially connected, and detection impedance is connected in series in point
Depressor low-pressure side, partial discharge detection instrument are connected with the output end of detection impedance, and gas diffusion is decomposed in the output end of divider and electric discharge
Cavity is connected, and gas chromatograph decomposes each block sampling detection mouth of gas diffusion chamber body with electric discharge by hose and connect；
Each functional component shell and grounding point are connected with baseline or grounded screen.
This pilot system has following advantages and good effect:
1. the test cavity that this pilot system uses is small in size compared to existing GIL, gas consumption is reduced, saves experimentation cost,
And it is light-weight, compact-sized, correlation test can be carried out in laboratory；
2. the long pipeline structure of the practical GIL of this pilot system analog, analog goes out to decompose the diffusion process of gas, internal electricity
Field is also close with existing GIL, and using practical disc insulator as defect model, obtained experimental result more meets practical feelings
Condition；
3. this pilot system mostly uses standard pipe and sealing flange to connect, expansibility is good, and processing request is low, can be in each religion
It learns, complete the production and build in scientific research institution and device fabrication manufacturer；
4. this pilot system can also carry out resolution characteristic research using endpiece cavity 8-19, endpiece cavity 8-19 has volume
The features such as small, structure is consistent with existing GIL, decomposing gas can quickly spread uniformly, convenient for quickly detecting the concentration for decomposing gas
Variation tendency；Every time when sampling, gas production is less, smaller for the diffusion process influence in electric discharge decomposition gas diffusion chamber body 8,
Test result accuracy can be improved；
5. this pilot system decomposes in electric discharge and has been evenly arranged multiple block sampling detection mouth 8-23 at gas diffusion chamber body 8, can
The decomposition gas concentration variation of different location is detected, decomposes gas diffusion process convenient for intuitive analysis；
6. this pilot system detects strength of discharge and decomposed substance component using partial discharge detection instrument 7 and gas chromatograph 9 respectively, examine
Survey result precision is high, stability is good, high sensitivity, convenient for the foundation of quantitative analysis and diffusion model.
In short, analog GIL internal electric field distribution of the present invention and decomposition gas diffusion process, detection sensitivity is high, accuracy
Good, suitable for each teaching and scientific research institution to the apparatus insulated diagnostic techniques of GIL application study.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of this pilot system；
Fig. 2 is the structural schematic diagram that gas diffusion chamber body is decomposed in electric discharge；
Fig. 3 is the A sectional side view that gas diffusion chamber body is decomposed in electric discharge,
For describing observation window, sample detecting mouth, density monitor and extension valve space layout mode.
In figure:
1-pressure regulation platform；
2-isolating transformers；
3-testing transformers；
4-protective resistances；
5-divider；
6-detection impedances；
7-partial discharge detection instrument；
Gas diffusion chamber body is decomposed in 8-electric discharges；
8-1- presses shielding case；8-2-high voltage power supply terminal pad；8-3-high voltage bushing；
8-4-high voltage linkage section conducting rod；8-5-high voltage linkage section cavity density monitor；
8-6-high voltage linkage section cavity end cover；8-7-high voltage linkage section cavity；
8-8-high voltage linkage section cavity support；Shielding case is pressed in 8-9-switching；
The sealed disc insulator of 8-10-；The preceding segment length's cavity of 8-11-；The long other conductive bar of 8-12-；
The rear segment length's cavity of 8-13-；The long cavity observing window of 8-14-；8-15-aeration type disc insulator；
8-16-conducting rod end profile shielding；8-17-endpiece cavity support；8-18-endpiece cavity observing window；
8-19-endpiece cavity；8-20-endpiece cavity end cover；
8-21-endpiece cavity sample detecting mouth；The long cavity density monitor of 8-22-；
8-23-block sampling detection mouth；8-24 extends valve.
9-gas chromatographs.
Specific embodiment
The present invention can be to the field distribution in practical GIL, defect type, partial discharge phenomenon, decomposition gas diffusion process
It is simulated and is detected.
It is described in detail below in conjunction with drawings and examples:
One, pilot system
1, the overall structure of pilot system
Such as Fig. 1, this pilot system includes pressure regulation platform 1, isolating transformer 2, testing transformer 3, protective resistance 4 and divider 5, inspection
Survey impedance 6, partial discharge detection instrument 7, electric discharge decomposition gas diffusion chamber body 8 and gas chromatograph 9；
Its position and connection relationship are:
Pressure regulation platform 1, isolating transformer 2, testing transformer 3, protective resistance 4 and divider 5 are sequentially connected, and detection impedance 6 is connected
It is connected to 5 low-pressure side of divider, partial discharge detection instrument 7 is connected with the output end of detection impedance 6, the output end of divider 5 and electric discharge point
It solves gas diffusion chamber body 8 to be connected, gas chromatograph 9 decomposes the detection of each block sampling of gas diffusion chamber body 8 by hose and electric discharge
Mouth 8-23 connection；
Each functional component shell and grounding point are connected with baseline or grounded screen.
2, the functional component of pilot system
1) pressure regulation platform 1
It is a kind of voltage regulation part, generally oil immersed type auto-transformer configuration is made of input terminal, winding and output end, is used for
The amplitude of system output voltage is adjusted, realizes transformation output.
2) isolating transformer 2
It is a kind of guard block, generally oil immersed type etc. is made of input terminal, winding and output end, is used for than transformer device structure
Isolated power supply improves the sensitivity and accuracy of partial discharge detection instrument 7 to the electromagnetic interference of pilot system.
3) testing transformer 3
It is a kind of boost parts, it is generally fixed than oil-immersed transformer structure, it is made of input terminal, winding and output end, no office
It puts, the voltage that can exchange 1 output of presenting a theatrical performance as the last item on a programme boosts, and reaches the voltage output requirement of pilot system.
4) protective resistance 4
It is a kind of guard block, when sample breakdown in gas diffusion chamber body 8 is decomposed in electric discharge in anti-locking system, breakdown current is to system
The destruction of equipment.
5) divider 5
It is a kind of measuring part, is made of high-voltage arm and low-voltage arm, for measures the output voltage with real testing transformer.
6) impedance 6 is detected
It is a kind of sample unit, it is general that electric discharge decomposition gas diffusion chamber body 8 is parallel to by divider, electric discharge can be decomposed gas
Partial discharge pulse's signal in diffusion cavity 8, which is coupled in partial discharge detection instrument 7, to be analyzed.
7) partial discharge detection instrument 7
It is a kind of detection and analysis component, is made of input channel, analysis system and human-computer interaction interface, detection impedance 6 can be passed
The analysis for the local discharge signal passed counts, and realizes the characterization that the Characteristics of Partial Discharge in gas diffusion chamber body 8 is decomposed to electric discharge
And detection.
8) gas diffusion chamber body 8 is decomposed in electric discharge
(1) separate structure of gas diffusion chamber body 8 is decomposed in electric discharge
Such as Fig. 2,3, it includes pressing shielding case 8-1, high voltage power supply terminal pad 8-2, high voltage set that gas diffusion chamber body 8 is decomposed in electric discharge
Pipe 8-3, high voltage linkage section conducting rod 8-4, high voltage linkage section cavity density monitor 8-5, high voltage linkage section cavity are close
Shielding case 8-9, sealing are pressed in sealing end lid 8-6, high voltage linkage section cavity 8-7, high voltage linkage section cavity support 8-8, switching
Formula disc insulator 8-10, preceding segment length's cavity 8-11, long other conductive bar 8-12, rear segment length's cavity 8-13, long cavity observing window
8-14, aeration type disc insulator 8-15, conducting rod end profile shielding 8-16, endpiece cavity support 8-17, endpiece cavity observing window
8-18, endpiece cavity 8-19, endpiece cavity end cover 8-20, endpiece cavity sample detecting mouth 8-21, long cavity density relay
Device 8-22, block sampling detection mouth 8-23 and extension valve 8-24；
Its position and connection relationship are:
Pressure shielding case 8-1 is fixed by bolts in above high voltage power supply terminal pad 8-2, and is carried out with the output end of divider 5
Electrical connection；High voltage power supply terminal pad 8-2 is connected to the upper end high voltage bushing 8-3, and the lower end high voltage bushing 8-3 passes through Sealing Method
Orchid is connected to above high voltage linkage section cavity 8-7；High voltage linkage section cavity end cover 8-6, high voltage linkage section cavity
8-7, sealed disc insulator 8-10, preceding segment length's cavity 8-11, rear segment length's cavity 8-13, aeration type disc insulator 8-15,
Endpiece cavity 8-19 and endpiece cavity end cover 8-20 passes sequentially through sealing flange and is bolted composition leakage test chamber
Body, and high voltage linkage section cavity is connected separately in high voltage linkage section cavity end cover 8-6 and rear segment length's cavity 8-13
Density monitor 8-5 and long cavity density monitor 8-22；High voltage linkage section cavity 8-7 is connected with the bottom endpiece cavity 8-19
There are high voltage linkage section cavity support 8-8 and endpiece cavity support 8-17；Long other conductive bar 8-12 is crossed to be connected in high voltage
Between section cavity 8-7, preceding segment length's cavity 8-11, rear segment length's cavity 8-13 and endpiece cavity 8-19, and it is exhausted by sealed benzvalene form
Edge 8-10 and aeration type disc insulator 8-15 are fixed；Long one end other conductive bar 8-12 shielding case 8-9 is pressed by switching
It is connected with high voltage linkage section conducting rod 8-4 with high voltage power supply terminal pad 8-2, the other end is provided with conducting rod end profile shielding 8-
16；Preceding segment length's cavity 8-11, rear segment length's cavity 8-13 and the upper end endpiece cavity 8-19 are connected with endpiece by spacing of 500mm respectively
Cavity sample detecting mouth 8-21 and 4 block sampling detection mouth 8-23；Block sampling near aeration type disc insulator 8-15
Detection mouth 8-23, long cavity density monitor 8-22 and extension valve 8-24 are arranged in a manner of coplanar different angle；Long cavity is seen
It examines window 8-14 and endpiece cavity observing window 8-18 is connected to rear segment length's cavity 8-13 and endpiece cavity in a manner of horizontally-opposed respectively
8-19 is at aeration type disc insulator 8-15.
(2) function element of gas diffusion chamber body 8 is decomposed in electric discharge
A, shielding case 8-1 is pressed
It is a kind of homogenizing electric field component, is a billiard table shape Al-alloy casing, for being homogenized the electricity of the end high voltage power supply terminal pad 8-2
Field distortion reduces the shelf depreciation background noise of system, guarantees the test accuracy and sensitivity of partial discharge detection instrument 7.
B, high voltage power supply terminal pad 8-2
It is a kind of electric connecting part, is an Al-alloy metal plate, is used for joint test transformer 3, decomposes gas for electric discharge and expand
It dissipates cavity 8 and power input is provided, establish electric field.
C, high voltage bushing 8-3
It is a kind of insulating element, is combined type inflatable insulation, high voltage and electric discharge point to the end high voltage power supply terminal pad 8-2
It solves and provides insulating supporting between the shell of gas diffusion chamber body 8.
D, high voltage linkage section conducting rod 8-4
It is a kind of electric connecting part, is the smooth aluminium-alloy pipe in a surface, high voltage can be inputted and be introduced into high voltage connection
In section cavity 8-7, and realize the electrical connection between high voltage power supply terminal pad 8-2 and long other conductive bar 8-12.
E, high voltage linkage section cavity density monitor 8-5
It is a kind of pressure measurement component, for the SF in real-time detection high voltage linkage section cavity 8-76Pressure, and be high voltage
Linkage section cavity 8-7 provides SF6Inflating port.
F, high voltage linkage section cavity end cover 8-6
It is a kind of seal member, is an aluminium alloy circle plate, for provides sealing to the high voltage linkage section end cavity 8-7.
G, high voltage linkage section cavity 8-7
It is that one kind is mechanically and electrically component, is an aluminum alloy drum, gas diffusion chamber body 8 can be decomposed to electric discharge, ground electricity is provided
Position and hyperbar SF6Insulated enclosure environment simultaneously realizes the connection between high voltage bushing 8-3 and preceding segment length's cavity 8-11 and 90 ° turns
To.
H, high voltage linkage section cavity support 8-8
It is a kind of mechanical support member, is an aluminium alloy post, for provides mechanical support to high voltage linkage section cavity 8-7.
I, shielding case 8-9 is pressed in switching
It is a kind of homogenizing electric field component, is a billiard table shape Al-alloy casing, for being homogenized high voltage linkage section conducting rod 8-4 and length
The electric field distortion of the end other conductive bar 8-12 reduces the shelf depreciation background noise of system, guarantees the test of partial discharge detection instrument 7
Accuracy and sensitivity.
J, sealed disc insulator 8-10
Be a kind of sealed insulation support member, be a basin type epoxy resin insulator, for high voltage linkage section cavity 8-7 and
Insulation and mechanical support are provided between long other conductive bar 8-12, and provide sealing for high voltage linkage section cavity 8-7, makes leading portion
Long cavity 8-11, rear segment length's cavity 8-13 and endpiece cavity 8-19 form independent seal chamber section, and decomposition gas is prevented to be diffused into
Its insulation performance is influenced in high voltage linkage section cavity 8-7.
K, preceding segment length's cavity 8-11
It is a kind of sealing and electric connecting part, is an aluminum alloy drum, gas diffusion chamber body 8 can be decomposed for electric discharge, ground electricity be provided
Position, hyperbar SF6Insulated enclosure environment and decomposition gas diffusion space, and realize high voltage linkage section cavity 8-7 and rear segment length
Electrically and mechanically connection between cavity 8-13.
L, long other conductive bar 8-12
It is a kind of electric connecting part, is the smooth aluminium-alloy pipe in a surface, high voltage can be inputted and be introduced into electric discharge decomposition gas
Body spreads 8 inside cavity of cavity and the end aeration type disc insulator 8-15, simulates the field distribution in practical GIL.
M, rear segment length's cavity 8-13
It is a kind of sealing and electric connecting part, is an aluminum alloy drum, gas diffusion chamber body 8 can be decomposed for electric discharge, ground electricity be provided
Position, hyperbar SF6Insulated enclosure environment and decomposition gas diffusion space, and realize preceding segment length's cavity 8-11 and electric discharge decomposition gas
The electrically and mechanically connection between cavity 8 is spread, to realize the expansion for decomposing gas diffusion space；For simulation different length
GIL, the component can also continue to be overlapped.
N, long cavity observing window 8-14
It is a kind of optical observation component, is made of, can lead to aluminium alloy connecting flange, 20mm thickness quartz glass and glass mounting flange
It crosses bolt to connect with rear segment length's cavity 8-13, for realizing naked eyes and UV detector to aeration type disc insulator 8-15 table
The electric discharge phenomena in face are observed and are monitored；The observation window can bear the pressure of 0.6MPa.
O, aeration type disc insulator 8-15
It is a kind of insulating support member, is a basin type epoxy resin insulator, multiple ventholes has been got through at edge, are used for preceding segment length
Insulation and mechanical support are provided between cavity 8-11 and rear segment length's cavity 8-13 and long other conductive bar 8-12；It and is rear segment length's chamber
Body 8-13 and endpiece cavity 8-19 provides gas flow channel, influence of the simulation support insulator to gas diffusion is decomposed；Logical
The surface gas formula disc insulator 8-15 can arrange insulation defect, simulate the different shelf depreciation forms in practical GIL.
P, conducting rod end profile shielding 8-16
It is a kind of homogenizing electric field component, is a billiard table shape Al-alloy casing, the electric field distortion of the long end other conductive bar 8-12 subtracts
The shelf depreciation background noise of mini system guarantees the test accuracy and sensitivity of partial discharge detection instrument 7.
Q, endpiece cavity support 8-17
It is a kind of mechanical support member, is an aluminium alloy post, for provides mechanical support to endpiece cavity 8-19.
R, endpiece cavity observing window 8-18
It is a kind of optical observation component, is made of, can lead to aluminium alloy connecting flange, 20mm thickness quartz glass and glass mounting flange
It crosses bolt to connect with endpiece cavity 8-19, for realizing naked eyes and UV detector to the surface aeration type disc insulator 8-15
Electric discharge phenomena observed and monitored；The observation window can bear the pressure of 0.6MPa, and quartz glass can pass through shelf depreciation and produce
Raw photon and ultraviolet light.
S, endpiece cavity 8-19
It is a kind of sealing and electric connecting part, is an aluminum alloy drum, gas diffusion chamber body 8 can be decomposed for electric discharge, ground electricity be provided
The hyperbar SF of position, the one end aeration type disc insulator 8-156Insulated enclosure environment and decomposition pass through aeration type disc insulator
Diffusion space after 8-15.
T, endpiece cavity end cover 8-20
It is a kind of seal member, is an aluminium alloy circle plectane, for provides sealing to the endpiece end cavity 8-19.
U, endpiece cavity sample detecting mouth 8-21
It is a kind of sample unit, is made of sealed valve and hose connection, it can be achieved that being carried out to the gas in endpiece cavity 8-19
Sampling, and gas chromatograph 9 is connected to by soft air-guide pipe and carries out component analysis.
V, long cavity density monitor 8-22
It is a kind of pressure measurement component, for the preceding segment length's cavity 8-11 of real-time detection, rear segment length's cavity 8-13 and passes through aeration type
SF in the endpiece cavity 8-19 of disc insulator 8-15 connection6Pressure, and SF is provided for high voltage linkage section cavity 8-76Inflation
Mouthful.
W, block sampling detection mouth 8-23
It is a kind of sample unit, is made of sealed valve and hose connection, segment length's cavity before being equidistantly connected to using 500mm as spacing
Top is, it can be achieved that go out different location in preceding segment length's cavity 8-11 and rear segment length's cavity 8-13 in 8-11 and rear segment length's cavity 8-13
Gas sampled, and by soft air-guide pipe be connected to gas chromatograph 9 carry out component analysis.
X, valve 8-24 is extended
It is a kind of expansion component, is made of sealed valve and hose connection, hose connection can be replaced, for realizing to electric discharge
The functions expanding of gas diffusion chamber body 8 is decomposed, and the connection for other equipment (such as calibrating gas gas cylinder) provides spare interface.
(3) working mechanism of gas diffusion chamber body 8 is decomposed in electric discharge
After the electric discharge decomposition each functional component of gas diffusion chamber body 8 is connected, certain air pressure SF is poured to each section of seal cavity6Absolutely
Edge gas, gas pressure can be carried out by high voltage linkage section cavity density monitor 8-5 and long cavity density monitor 8-22
Detection and adjustment；8 earthing of casing of gas diffusion chamber body is decomposed and by high voltage power supply terminal pad 8-2 and test transformation when that will discharge
After device 3 connects, segment length's chamber before can importeding into high voltage by high voltage linkage section conducting rod 8-4 and long other conductive bar 8-12
In body 8-11, rear segment length's cavity 8-13 and endpiece cavity 8-19, and strong electrical field is established on aeration type disc insulator 8-15；It is logical
The insulation defect arranged on gas formula disc insulator 8-15 can cause shelf depreciation, and shelf depreciation can make SF6Gas decomposes；It decomposes
Gas can be spread in the sealing space that preceding segment length's cavity 8-11, rear segment length's cavity 8-13 and endpiece cavity 8-19 are formed；Pass through
Endpiece cavity sample detecting mouth 8-21 and block sampling detection mouth 8-23 takes each point in the decomposition gas diffusion chamber body 8 that will discharge
Sample result carries out component analysis, it is known that SF in cavity6The generation of decomposition gas and diffusion property and aeration type disc insulator 8-
The influence of 15 pairs of diffusions；During shelf depreciation, electric discharge phenomena can be observed by long cavity observing window 8-14 and endpiece cavity
Window 8-18 is observed.
9) gas chromatograph 9
It is a kind of gas composition analysis component, endpiece cavity sample detecting mouth 8-21 and block sampling detection mouth 8-23 can be acquired
Gas componant and content tested and analyzed.
3, the working mechanism of system
The high voltage that system is input to electric discharge decomposition gas diffusion chamber body 8 passes through pressure regulation platform 1, isolating transformer 2, testing transformer
3 and divider 5 measure, adjust and amplify；Under different voltages, the shelf depreciation that electric discharge is decomposed in gas diffusion chamber body 8 is strong
Degree carries out quantitative analysis by detection impedance 6 and partial discharge detector 7；It discharges after a period of time, decomposing gas can decompose in electric discharge
It is diffused in gas diffusion cavity 8, the decomposition gas at different location can be from endpiece cavity sample detecting mouth 8-21 and segmentation
Sample detecting mouth 8-23 sample and is carried out qualitative and quantitative analysis by gas chromatograph 9, is punished and is solved according to different location
The diffusion of gas is decomposed known to the content of gas；According to system test result, to voltage and discharge capacity, discharge capacity and can divide
Solution gas generating rate and time and the quantitative relationship decomposed between gas diffusion are measured, and to different decomposition gas
The influence of diffusion property and aeration type disc insulator 8-15 to diffusion is analyzed and researched.
Two, test method
This method includes the following steps:
1. defect is arranged: according to test demand, defect model is arranged on aeration type disc insulator 8-15, simulates different solids
Partial discharge phenomenon under insulation defect type provides decomposition gas for diffusion property research；
2. being vacuum-treated: electric discharge is decomposed 8 each section of gas diffusion chamber body after being provided with and connected by defect, guarantees high voltage connection
Section cavity end cover 8-6 and endpiece cavity end cover 8-20 installation is close；At this time close block sampling detection mouth 8-23 and
Valve 8-24 is extended, high voltage linkage section cavity density monitor 8-5 and long cavity density monitor 8-22 valve and company are opened
Vacuum pump is connect, high voltage linkage section cavity 8-7 and electric discharge are decomposed into gas diffusion chamber body 8 and are evacuated to vacuum, and stands 12 hours, is led to
Too high voltages linkage section cavity density monitor 8-5 and long cavity density monitor 8-22 checks that gas diffusion chamber body is decomposed in electric discharge
Air pressure change in 8；
3. inflation: if air pressure is constant in electric discharge decomposition gas diffusion chamber body 8, keeping vacuum, it was demonstrated that air-tightness is good, then closes height
Voltage linkage section cavity density monitor 8-5 valve, changing-over SF6Gas cylinder；Open high voltage linkage section cavity density monitor 8-5
Valve closes after being inflated to high voltage linkage section cavity density monitor 8-5 gauge pressure 0.6MPa into high voltage linkage section cavity 8-7
Close pressure 5 valve of section cavity density monitor；Long cavity density monitor 8-22 valve is operated with same sequence later, to electric discharge point
Solution gas diffusion chamber body 8 pours the SF of 0.6MPa6Gas；
4. measuring partial discharge starting voltage with the critical partial discharge quantity of electric charge: pressure regulation platform 1 being connect power supply, and starts pressure regulation platform 1；By voltage
It is raised to partial discharge detection instrument 7 and Partial discharge signal occurs, and record voltage at this time, be denoted as partial discharge starting voltage Uin；Continue to boost to
Breakdown, the maximum overlooking partial discharge quantity of electric charge of record, is denoted as critical partial discharge quantity of electric charge Qc；
5. partial discharge node is arranged: in partial discharge starting voltage UinUnder partial discharge quantity of electric charge QinWith critical partial discharge quantity of electric charge QcSetting 5
A quantity of electric charge node, and corresponding applied voltage is recorded, to simulate and characterize 5 strength of discharge grades；
6. gas collecting and component analysis: each sampling interval is 1 hour；When sampling, by corresponding block sampling detection mouth 8-
23 open, can clearance over-sampling bag sampled, or sampling is directly connect with gas chromatograph 9 by tracheae；To eliminate tracheae
Influence of the interior residual gas to analysis result, first ventilates 1 minute before detection, then carries out component analysis by gas chromatograph 9；Note
Each position different time, different defect types and feature decomposition gaseous species and concentration data under strength of discharge are recorded, to divide
Analyse the electric discharge resolution characteristic and the corresponding diffusion property for decomposing gas of different defects.
Claims (3)
1. decomposing the pilot system of gas diffusion characteristic in a kind of research GIL, it is characterised in that:
Including pressure regulation platform (1), isolating transformer (2), testing transformer (3), protective resistance (4) and divider (5), detection impedance
(6), gas diffusion chamber body (8) and gas chromatograph (9) are decomposed in partial discharge detection instrument (7), electric discharge；
Its position and connection relationship are:
Pressure regulation platform (1), isolating transformer (2), testing transformer (3), protective resistance (4) and divider (5) are sequentially connected, detection
Impedance (6) is connected in series in divider (5) low-pressure side, and partial discharge detection instrument (7) is connected with the output end of detection impedance (6), divider
(5) output end decomposes gas diffusion chamber body (8) with electric discharge and is connected, and gas chromatograph (9) decomposes gas by hose and electric discharge
Spread cavity (8) each block sampling detection mouth (8-23) connection；
Each functional component shell and grounding point are connected with baseline or grounded screen.
2. decomposing the pilot system of gas diffusion characteristic in a kind of research GIL according to claim 1, it is characterised in that:
It includes pressing shielding case (8-1), high voltage power supply terminal pad (8-2), high electricity that gas diffusion chamber body (8) are decomposed in the electric discharge
Pressing sleeve pipe (8-3), high voltage linkage section conducting rod (8-4), high voltage linkage section cavity density monitor (8-5), high voltage connect
Connect a section cavity end cover (8-6), high voltage linkage section cavity (8-7), high voltage linkage section cavity support (8-8), switching
Press shielding case (8-9), sealed disc insulator (8-10), preceding segment length's cavity (8-11), long other conductive bar (8-12), back segment
Long cavity (8-13), long cavity observing window (8-14), aeration type disc insulator (8-15), conducting rod end profile shielding (8-16),
Endpiece cavity support (8-17), endpiece cavity observing window (8-18), endpiece cavity (8-19), endpiece cavity end cover (8-
20), endpiece cavity sample detecting mouth (8-21), long cavity density monitor (8-22), block sampling detection mouth (8-23) and expansion
It opens up valve (8-24)；
Its position and connection relationship are:
Pressure shielding case (8-1) is fixed by bolts in above high voltage power supply terminal pad (8-2), and the output with divider (5)
End is electrically connected；High voltage power supply terminal pad (8-2) is connected to the upper end high voltage bushing (8-3), under high voltage bushing (8-3)
End is connected to above high voltage linkage section cavity (8-7) by sealing flange；High voltage linkage section cavity end cover (8-6),
High voltage linkage section cavity (8-7), sealed disc insulator (8-10), preceding segment length's cavity (8-11), rear segment length's cavity (8-
13), aeration type disc insulator (8-15), endpiece cavity (8-19) and endpiece cavity end cover (8-20) pass sequentially through sealing
Ring flange and it is bolted composition leakage test cavity, and in high voltage linkage section cavity end cover (8-6) and rear segment length's chamber
Body (8-13) is connected separately with high voltage linkage section cavity density monitor (8-5) and long cavity density monitor (8-22)；It is high
Voltage linkage section cavity (8-7) and the bottom endpiece cavity (8-19) are connected with high voltage linkage section cavity support (8-8) and endpiece
Cavity support (8-17)；Long other conductive bar (8-12) is crossed in high voltage linkage section cavity (8-7), preceding segment length's cavity (8-
11), between rear segment length's cavity (8-13) and endpiece cavity (8-19), and pass through sealed disc insulator (8-10) and aeration type
Disc insulator (8-15) is fixed；Shielding case (8-9) and high voltage is pressed to connect by switching in long other conductive bar one end (8-12)
It connects a section conducting rod (8-4) to be connected with high voltage power supply terminal pad (8-2), the other end is provided with conducting rod end profile shielding (8-16)；Before
Segment length's cavity (8-11), rear segment length's cavity (8-13) and the upper end endpiece cavity (8-19) are connected with tail by spacing of 500mm respectively
Section cavity sample detecting mouth (8-21) and 4 block sampling detection mouths (8-23)；Aeration type disc insulator (8-15) is nearby
Block sampling detection mouth (8-23), long cavity density monitor (8-22) and extension valve (8-24) in a manner of coplanar different angle
Arrangement；Long cavity observing window (8-14) and endpiece cavity observing window (8-18) are connected to rear segment length's chamber in a manner of horizontally-opposed respectively
Body (8-13) and endpiece cavity (8-19) are at aeration type disc insulator (8-15).
3. based on a kind of test method for studying the pilot system of decomposition gas diffusion characteristic in GIL as claimed in claim 1 or 2,
It is characterized by comprising the following steps:
1. defect is arranged: according to test demand, defect model being arranged on aeration type disc insulator (8-15), simulates different solid
Partial discharge phenomenon under body insulation defect type provides decomposition gas for diffusion property research；
2. being vacuum-treated: electric discharge is decomposed gas diffusion chamber body (8) each section after being provided with and connected by defect, guarantees that high voltage connects
It connects section cavity end cover (8-6) and endpiece cavity end cover (8-20) installation is close；Block sampling detection mouth is closed at this time
(8-23) and extension valve (8-24), opens high voltage linkage section cavity density monitor (8-5) and long cavity density monitor
(8-22) valve simultaneously connects vacuum pump, and high voltage linkage section cavity (8-7) and electric discharge are decomposed gas diffusion chamber body (8) and are evacuated to very
Sky, and 12 hours are stood, it is examined by high voltage linkage section cavity density monitor (8-5) and long cavity density monitor (8-22)
It looks into electric discharge and decomposes gas diffusion chamber body (8) interior air pressure change；
3. inflation: if electric discharge decomposition gas diffusion chamber body (8) interior air pressure is constant, keeping vacuum, it was demonstrated that air-tightness is good, then closes
High voltage linkage section cavity density monitor (8-5) valve, changing-over SF6Gas cylinder；Open high voltage linkage section cavity density relay
Device (8-5) valve is inflated to high voltage linkage section cavity density monitor (8-5) table into high voltage linkage section cavity (8-7)
Pressure 5 valve of section cavity density monitor is closed after pressing 0.6MPa；Long cavity density monitor (8- is operated with same sequence later
22) valve decomposes the SF that gas diffusion chamber body (8) pour 0.6MPa to electric discharge6Gas；
4. measuring partial discharge starting voltage with the critical partial discharge quantity of electric charge: pressure regulation platform (1) being connect power supply, and starts pressure regulation platform (1)；It will
Voltage is raised to partial discharge detection instrument (7) and Partial discharge signal occurs, and records voltage at this time, is denoted as partial discharge starting voltage Uin；Continue
Breakdown is boosted to, the maximum overlooking partial discharge quantity of electric charge of record is denoted as critical partial discharge quantity of electric charge Qc；
5. partial discharge node is arranged: in partial discharge starting voltage UinUnder partial discharge quantity of electric charge QinWith critical partial discharge quantity of electric charge QcSetting 5
A quantity of electric charge node, and corresponding applied voltage is recorded, to simulate and characterize 5 strength of discharge grades；
6. gas collecting and component analysis: each sampling interval is 1 hour；When sampling, by corresponding block sampling detection mouth (8-
23) open, can clearance over-sampling bag sampled, or sampling is directly connect with gas chromatograph (9) by tracheae；To eliminate gas
Influence of the residual gas to analysis result in managing, first ventilates 1 minute before detection, then carries out component point by gas chromatograph (9)
Analysis；Each position different time, different defect types and feature decomposition gaseous species and concentration data under strength of discharge are recorded, are used
To analyze the electric discharge resolution characteristic and the corresponding diffusion property for decomposing gas of different defects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910694266.3A CN110361638A (en) | 2019-07-30 | 2019-07-30 | Study the pilot system and its method that gas diffusion characteristic is decomposed in GIL |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910694266.3A CN110361638A (en) | 2019-07-30 | 2019-07-30 | Study the pilot system and its method that gas diffusion characteristic is decomposed in GIL |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110361638A true CN110361638A (en) | 2019-10-22 |
Family
ID=68222758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910694266.3A Withdrawn CN110361638A (en) | 2019-07-30 | 2019-07-30 | Study the pilot system and its method that gas diffusion characteristic is decomposed in GIL |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110361638A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111650972A (en) * | 2020-06-12 | 2020-09-11 | 重庆科技学院 | Multi-component dynamic gas distribution test system with mixer |
| CN112986763A (en) * | 2021-02-19 | 2021-06-18 | 国家电网公司华中分部 | Experimental device for research GIS discharge position detects influence to decomposed gas |
| CN113341279A (en) * | 2021-04-26 | 2021-09-03 | 广东电网有限责任公司电力科学研究院 | GIL partial discharge monitoring method, device and system and storage medium |
| CN113567264A (en) * | 2021-08-24 | 2021-10-29 | 国家电网公司华中分部 | Experimental device and experimental method capable of simultaneously simulating high voltage and high temperature of GIL inner conductor |
| CN113567264B (en) * | 2021-08-24 | 2024-04-26 | 国家电网公司华中分部 | Experimental device and experimental method capable of simultaneously simulating high voltage and high temperature of GIL inner conductor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101059485A (en) * | 2007-05-23 | 2007-10-24 | 重庆大学 | Sulfur hexafluoride discharge decomposed gas component analysis system and its usage method |
| CN202661587U (en) * | 2012-05-15 | 2013-01-09 | 宁夏电力公司电力科学研究院 | Sulfur hexafluoride gas insulation equipment simulation test device |
| CN105388406A (en) * | 2015-12-29 | 2016-03-09 | 武汉大学 | Gas insulated electric equipment partial discharge multi-source joint detection method |
| CN205263242U (en) * | 2015-11-23 | 2016-05-25 | 国网重庆市电力公司电力科学研究院 | Real type trouble analogue test device of GIS |
| CN105652169A (en) * | 2016-03-22 | 2016-06-08 | 国家电网公司 | Temperature-controllable gas insulation performance testing system and method thereof |
| CN210803643U (en) * | 2019-07-30 | 2020-06-19 | 国家电网公司华中分部 | Test device for researching diffusion characteristic of decomposed gas in GIL |
-
2019
- 2019-07-30 CN CN201910694266.3A patent/CN110361638A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101059485A (en) * | 2007-05-23 | 2007-10-24 | 重庆大学 | Sulfur hexafluoride discharge decomposed gas component analysis system and its usage method |
| CN202661587U (en) * | 2012-05-15 | 2013-01-09 | 宁夏电力公司电力科学研究院 | Sulfur hexafluoride gas insulation equipment simulation test device |
| CN205263242U (en) * | 2015-11-23 | 2016-05-25 | 国网重庆市电力公司电力科学研究院 | Real type trouble analogue test device of GIS |
| CN105388406A (en) * | 2015-12-29 | 2016-03-09 | 武汉大学 | Gas insulated electric equipment partial discharge multi-source joint detection method |
| CN105652169A (en) * | 2016-03-22 | 2016-06-08 | 国家电网公司 | Temperature-controllable gas insulation performance testing system and method thereof |
| CN210803643U (en) * | 2019-07-30 | 2020-06-19 | 国家电网公司华中分部 | Test device for researching diffusion characteristic of decomposed gas in GIL |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111650972A (en) * | 2020-06-12 | 2020-09-11 | 重庆科技学院 | Multi-component dynamic gas distribution test system with mixer |
| CN112986763A (en) * | 2021-02-19 | 2021-06-18 | 国家电网公司华中分部 | Experimental device for research GIS discharge position detects influence to decomposed gas |
| CN112986763B (en) * | 2021-02-19 | 2022-06-14 | 国家电网公司华中分部 | Experimental device for research GIS discharge position detects influence to decomposed gas |
| CN113341279A (en) * | 2021-04-26 | 2021-09-03 | 广东电网有限责任公司电力科学研究院 | GIL partial discharge monitoring method, device and system and storage medium |
| CN113567264A (en) * | 2021-08-24 | 2021-10-29 | 国家电网公司华中分部 | Experimental device and experimental method capable of simultaneously simulating high voltage and high temperature of GIL inner conductor |
| CN113567264B (en) * | 2021-08-24 | 2024-04-26 | 国家电网公司华中分部 | Experimental device and experimental method capable of simultaneously simulating high voltage and high temperature of GIL inner conductor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105388406B (en) | A kind of gas insulated electric apparatus shelf depreciation multi-source associated detecting method | |
| CN105629139B (en) | A kind of gas insulated electric apparatus shelf depreciation multi-source combined monitoring experimental provision | |
| CN110361638A (en) | Study the pilot system and its method that gas diffusion characteristic is decomposed in GIL | |
| CN105548823B (en) | A kind of DC gas insulated local discharge of electrical equipment decomposes analogue experiment method | |
| CN103913682B (en) | Be applied to insulating gas insulating property experimental system and the method thereof of electrical equipment | |
| CN102435919B (en) | Tester for testing SF6 gas discharge decomposition product characteristics | |
| CN203811754U (en) | An enclosed type gas insulation combined electric appliance partial discharge detection device | |
| Qi et al. | Partial discharge initiated by free moving metallic particles on GIS insulator surface: severity diagnosis and assessment | |
| CN105223478A (en) | Based on the GIS partial discharge live detection test unit of defects simulation | |
| CN110275096A (en) | Insulator surface defect local discharge detection device and detection method | |
| CN106707048B (en) | A kind of GIS combination electric appliance intelligent assembly device for detecting performance | |
| CN109254233A (en) | A kind of transformer electric fault gas simulator | |
| CN109580774B (en) | Equipment and method for detecting withstand voltage breakdown characteristic of insulating substitute gas | |
| CN206638775U (en) | A kind of transformer fault simulation experimental provision | |
| CN203191508U (en) | GIS partial-discharge detection test platform based on transient-earthing radio waves | |
| CN104880654A (en) | Gas insulated substation spark discharge fault simulation experiment apparatus and method thereof | |
| CN210803643U (en) | Test device for researching diffusion characteristic of decomposed gas in GIL | |
| CN203811751U (en) | Power equipment partial discharge experimental system based on comparison fitting analysis | |
| CN107505551A (en) | Gas-insulated stacked switch equipment superfrequency sensor arrangement experimental rig and application | |
| CN107748295B (en) | Device and method for testing dielectric loss of GIS basin-type insulator | |
| CN108956806A (en) | SF6/CF4Mixed gas discharge device and decomposition product detection method | |
| CN108152694A (en) | A kind of GIS disc insulators detection method for local discharge | |
| CN108445359A (en) | A kind of detection method of SF6 in free metal insulation defect shelf depreciation | |
| CN107015132A (en) | A kind of different metal material is to SF6Exchange influence experimental provision and its method that PD is decomposed | |
| CN217521298U (en) | Partial discharge measuring equipment and device of GIS insulating pull rod |
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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191022 |