CN104764982B - A kind of device and its application method for carrying out insulating materials edge flashing experiment - Google Patents
A kind of device and its application method for carrying out insulating materials edge flashing experiment Download PDFInfo
- Publication number
- CN104764982B CN104764982B CN201410722931.2A CN201410722931A CN104764982B CN 104764982 B CN104764982 B CN 104764982B CN 201410722931 A CN201410722931 A CN 201410722931A CN 104764982 B CN104764982 B CN 104764982B
- Authority
- CN
- China
- Prior art keywords
- gas
- experiment
- electrode
- insulating materials
- edge flashing
- 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.)
- Active
Links
- 238000002474 experimental method Methods 0.000 title claims abstract description 96
- 239000011810 insulating material Substances 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims description 7
- 238000011160 research Methods 0.000 claims abstract description 13
- 239000010949 copper Substances 0.000 claims description 34
- 229910052802 copper Inorganic materials 0.000 claims description 34
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 33
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 22
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 22
- 239000000523 sample Substances 0.000 claims description 22
- -1 polytetrafluoroethylene Polymers 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 4
- 229910001369 Brass Inorganic materials 0.000 claims description 3
- 239000010951 brass Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 210000004907 gland Anatomy 0.000 claims description 2
- 239000012774 insulation material Substances 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 12
- 238000012545 processing Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 66
- 238000009413 insulation Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000012212 insulator Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- CUZMQPZYCDIHQL-VCTVXEGHSA-L calcium;(2s)-1-[(2s)-3-[(2r)-2-(cyclohexanecarbonylamino)propanoyl]sulfanyl-2-methylpropanoyl]pyrrolidine-2-carboxylate Chemical compound [Ca+2].N([C@H](C)C(=O)SC[C@@H](C)C(=O)N1[C@@H](CCC1)C([O-])=O)C(=O)C1CCCCC1.N([C@H](C)C(=O)SC[C@@H](C)C(=O)N1[C@@H](CCC1)C([O-])=O)C(=O)C1CCCCC1 CUZMQPZYCDIHQL-VCTVXEGHSA-L 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Testing Relating To Insulation (AREA)
Abstract
The present invention provides one kind in SF6The device of insulating materials edge flashing experiment is carried out in gas, it is relative to former single pair of electrode or multipair electrode tie rod formula experiment chamber, the experimental features of the edge flashing under same atmospheric pressure Different electrodes distance can be studied simultaneously, and under same flashover distance gas with various pressure edge flashing experimental features, meet once test in processing polylith insulate sample research.Therefore, the present invention can reduce the opening times that chamber is tested in experimentation, save experimental period and cost, and reduce SF6Using and revealing for gas, has the advantages that simple in construction, easy to operate, cost-effective, favorable repeatability.
Description
Technical field
The present invention relates to product design technology field, more particularly in SF6Insulating materials edge flashing is carried out in gas real
The device tested.
Background technology
Analyze according to statistics, current overwhelming majority GIS (Gas Insulated Switchgear, gas-insulating and fully-enclosed group
Close electrical equipment) all use SF6Gas is used as dielectric.Because SF6Gas has higher electrical insulation strength and excellent
In arc extinction performance, the insulation system for being widely used in various high-tension apparatuses.But in GIS, SF6Gas and insulating materials
Creeping discharge often occurs on interface, when electric discharge is developed into through the two poles of the earth and is made entirely along face gap breakdown, along face
Electric discharge is just evolved into edge flashing.Edge flashing occurs in GIS, SF can be made6Gas is decomposed, and the product disengaged can be to equipment
Corrosion is produced, causing the insulation degree of electrical equipment reduces；In addition, flashover can also aggravate electric field distortion, make insulating materials by
Heavy damage.This just causes domestic and international researcher and produces attention to the edge flashing of GIS built-in electrical insulation dielectric surfaces, carries out
A series of research, such as：Full of SF6Or the machine of insulating materials edge flashing is studied in the closed experiment chamber of its mixed gas
Reason, characteristic and the reason for cause flashover etc., research insulating materials surface charge accumulation insulator occurs the influence of edge flashing.
Research finds voltage waveform, magnetic field, insulating materials dielectric constant, insulator geometry, insulator surface cleannes and coarse
Degree etc. is also to influence the key factor of flashover.
It is domestic at present and be directed to SF in the world6The edge flashing experiment of insulating materials is generally real using single electrode in gas
Test chamber or the multi-electrode experiment chamber with connecting rod framework.Which kind of experiment chamber insulating materials edge flashing all in existing gas
It is commonly used in research in closed experiment chamber and is put into insulating materials, then applies different types of voltage on the insulating material.
It is frequently necessary to change experiment condition in research process, such as：Electrode gap, gas pressure intensity changes gas componant proportioning etc., to seek
Look for optimal experiment effect.This result in experiment intracavitary insulation sample material frequent replacing and gas componant, pressure it is many
Secondary displacement etc., researcher is repeated on the unlatching of experiment chamber, inserted sample, vacuumize, stand, inflating, testing, being vented etc. not only
The extensive work time is wasted, and causes SF6Being excessively used for gas, causes environmental pollution.And majority SF6Experimental provision
Each experimentation is only capable of handling single sample, takes connecting rod mode to exchange the experiment of experiment sample in experiment inside cavity
Chamber, it is complicated to be difficult to manipulate, and the connecting portion of connecting rod and cavity is possible to leakage SF6Gas, will also result in environment dirty
Dye.Therefore experiment chamber opening times can be reduced by being badly in need of invention one kind, it is to avoid experimental provision and method that gas is wasted.
The content of the invention
In order to solve the above technical problems, the present invention provides one kind in SF6Insulating materials edge flashing experiment is carried out in gas
Device, its relative to former single pair of electrode or multipair electrode tie rod formula experiment chamber, with it is simple in construction, easy to operate, section
About cost, favorable repeatability the advantages of.
The present invention in SF6The device of insulating materials edge flashing experiment is carried out in gas, described device includes carrying institute
State SF6Gas carries out insulating materials and flashes the experiment chamber (1) tested, the flowmeter (5) of electromagnetic valve for adjusting (6), according to institute along face
The regulation control for stating flowmeter (5) enters the magnetic valve (6) of described experiment chamber (1) interior gas velocity, carries the SF6Gas
Body and the gas cylinder of experimental gas (7), the control SF6Gas enters the vacuum valve (4) of the experiment chamber (1), to the experiment
The oscillograph of molecular pump (8), the high pressure in the measurement input experiment chamber (1) and flashover voltage that chamber (1) is vacuumized
(11) the insulating materials sample (18) and high voltage power supply of insulating materials edge flashing experiment, are carried out between electrode (15)
(13), its key technology is,
Described device also includes：
Load the filter holder means (2) of the multipair electrode (15)；
High pressure exit, is the first electrode outlet being located on the experiment chamber (1), and the high pressure exit passes through height
Gland cylinder (14) insulate with the experiment chamber (1)；
A copper rod (21), described copper rod (21) one end and multipair electrode (15) phase are set in the high pressure sleeve (14)
Even, copper rod (21) other end is connected with the high voltage power supply (13), and the other end of the copper rod (21) also passes through high pressure
Probe (12) is connected on the oscillograph (11)；Low pressure exit, is that the second electrode being located on the experiment chamber (1) is drawn
Mouthful, the low pressure exit is insulated by low-pressure sleeve (3) with the experiment chamber (1)；
The many copper rods (21), many described copper rod (21) one end and the multipair electricity are set in the low-pressure sleeve (3)
Pole (15) is connected one by one, many copper rod (21) other ends draw respectively a ground electrode lead pass through it is corresponding one low
Compress switch (9) be connected to the ground；And multiple low tension switches (9) are connected to the oscillograph by a Rogowski coil (10)
(11) on；
Gas cylinder (7) is made up of two sub- gas cylinders, the SF6Gas and experimental gas are respectively placed in described two sub- gas cylinders
In, and the experimental gas is N2Or CF4。
Further, the filter holder means (2) include support (17) and the first fixing screws (16), and the support (17)
Material with first fixing screws (16) is polytetrafluoroethylene (PTFE)；
Further, the support (17) is bonded by two vertical plates and a level board, and thickness of slab is 20mm；And
The electrode (15) is fixed between described two vertical plates, the electrode (15) is fixed by first fixing screws (16),
And it is that the clearance distance between 100mm, electrode (15) described in each pair can for 0~10mm that the electrode (15) is the distance between adjacent
Adjust.
Further, the electrode (15) is to have placement between the finger-type electrode that brass is made, electrode (15) inside
The gap of the insulating materials sample (18), the gap width is 6-10mm；
Further, the thickness of the insulating materials sample (18) be less than 5mm, by be made up of polytetrafluoroethylene (PTFE) second
Fixing screws (19) are fixed.
Further, poured into a mould in the low-pressure sleeve (3) and the high pressure sleeve (14) around the copper rod (21) poly-
The many copper rods (21) in tetrafluoroethene, and the low-pressure sleeve (3) are insulated from each other.
Further, the experiment chamber (1) is closed experiment cavity, is made up of stainless steel material.
Further, at most there are a closure, two end lines of multiple low tension switches (9) in the low tension switch (9)
Insulated between road.
Further, the low-pressure sleeve (3) is connected one by one by 4 copper rods (21) with 4 pairs of electrodes (15),
And a piece ground electrode lead of extraction is connected to the ground by a corresponding low tension switch (9) respectively；
Wherein, four low tension switches (9) are made up of four low tension switches being independent of each other K1, K2, K3, K4, each
Low tension switch control a pair described in electrode (15) whether be grounded.
Further, the low-pressure sleeve (3) includes the insulated column (20) and many copper rods that polytetrafluoroethylene (PTFE) is made
(21), many copper rods (21) are cast in insulated column (20) using integrated poured form.
The present invention also provides one kind in SF6The application method of the device of insulating materials edge flashing experiment is carried out in gas,
It comprises the following steps：
Step 1, all parts of described device are connected, multiple low tension switches (9) are placed in off-state, are adjusted
The distance between multipair described electrode (15) in the filter holder means (2), places the insulating materials sample (18), will be described
Filter holder means (2) are inserted in the experiment chamber (1), connection line, close the experiment chamber (1)；With the molecular pump (8) to it
Vacuumize, open vacuum valve (4) the injection gas；
Step 2, when research edge flashing experimental features under same atmospheric pressure Different electrodes distance, to the experiment chamber
(1) insufflation gas close the vacuum valve (4) to required pressure, open the high voltage power supply (13), multipair described by closing
Low tension switch (9) selection Different electrodes ground connection, and then select different experimental group electrode pressurizations to be tested；
When studying the flashover experimental features under same flashover distance gas with various pressure, the multipair electrode is kept
(15) distance is identical between, in experiment chamber (1) the interior insufflation gas to required pressure, closes the multipair low tension switch (9)
In any one, the flashover property experiment of the coupled insulating materials model (18) is carried out, successively to described in other
The flashover property experiment of insulating materials model (18)；
Step 3, experiment terminates, and closes the high voltage power supply (13), disconnects multiple low tension switches (9), collects described
Chamber (1) interior gas is tested, the experiment chamber (1) is opened and takes out multiple insulation models (18)
Beneficial effect：
The present invention can study the experimental features of the edge flashing under same atmospheric pressure Different electrodes distance, Yi Ji simultaneously
Flashover experimental features under same flashover distance gas with various pressure, meets the processing polylith insulation sample in once testing
Research, therefore, it is possible to reduce the opening times that chamber is tested in experimentation, saves experimental period and cost and reduces SF6Gas
Use and reveal.
Brief description of the drawings
Fig. 1 is the present invention in SF6The apparatus structure schematic diagram of insulating materials edge flashing experiment is carried out in gas；
Fig. 2 is the present invention in SF6The filter holder means knot in the device of insulating materials edge flashing experiment is carried out in gas
Structure schematic diagram；
Fig. 3 is the present invention in SF6The electrode structure carried out in gas in the device of insulating materials edge flashing experiment shows
It is intended to；
Fig. 4 is the present invention in SF6The low-pressure sleeve knot in the device of insulating materials edge flashing experiment is carried out in gas
Structure schematic diagram；
Description of reference numerals：
1- tests chamber, 2- filter holder means, 3- low-pressure sleeves, 4- vacuum valves, 5- flowmeters, 6- magnetic valves, 7- gas cylinders, 8- points
Sub- pump, 9- low tension switches, 10- Rogowski coils, 11- oscillographs, 12- high-voltage probes, 13- high voltage power supplies, 14- high pressure sleeves, 15-
Electrode, 16- fixing screws, 17- supports, 18- insulating materials models, 19- fixing screws, 20- insulated columns, 21- copper rods.
Embodiment
As shown in figure 1, the inventive system comprises experiment chamber (1), filter holder means (2), flowmeter (5), gas cylinder (7), point
Sub- pump (8), low tension switch (9), oscillograph (11), high voltage power supply (13) etc..Wherein, experiment chamber (1) be stainless steel be made it is close
There are high-low pressure sleeve, pumping and air inlet and observation window etc. on closed chamber body, cavity, flowmeter (5) is gas flowmeter, is led to
Cross and control coupled magnetic valve (6) to adjust the flow velocity of entered gas.The gas cylinder (7) of gas is loaded by two gas cylinders groups
Into a carrying SF6Gas, needed for another carrying experiment and SF6The gas of mixing, two kinds of gases by magnetic valve (6) and with
Its connected flowmeter (5) controls aeration speed, is finally reached required experimental gas mixed proportion.Gas cylinder (7) built with
SF6Gas, is connected between molecular pump (8) and experiment chamber (1) with bellows, for being vacuumized to test chamber (1), wherein with SF6It is mixed
The gas of conjunction is experimental gas, and composition is N2、CF4Or other experimental gas of experiment demand can be met.
It is made up of with low tension switch (9) four low tension switches being independent of each other K1, K2, K3, K4, each low tension switch control
Whether a pair of electrodes is grounded, and at most has insulation between a closure, the two-termial line of four low tension switches in low tension switch (9)
Exemplified by illustrate.
Low tension switch (9) is made up of four switches being independent of each other K1, K2, K3, K4, and each switch control a pair of electrodes is
No ground connection, by the on and off of switch come different flashover groups in coordination electrode mounting system, low tension switch at most has in (9)
One closure, and it is noted that the insulation interference of ground electrode (exclude hanging) between switch ends circuit.
High voltage power supply (13) is connected by the high-pressure side in high pressure sleeve (14) with testing the electrode of intracavitary, oscillograph (11)
The high pressure and flashover voltage of measurement input experiment intracavitary, the flashover current during Rogowski coil (10) measurement experiment.
As shown in Fig. 2 filter holder means (2) include support (17), four pairs of electrodes (15), fixing screws (16), its medium-height trestle
(17) it is made up of polyfluortetraethylene plate, thickness of slab 20mm, including two vertical plates and a horizontal plank are bonded, it is each vertical
The neighbor distance that plate length and width are institute's fixed electrode on 200mm, plate is 100mm.Four pairs of electrodes share a high voltage power supply
(13), electrode is fixed on support by fixing screws (16) respectively, and wherein filter holder means (2) are fixed on reality by fixing screws (16)
Test in chamber (1), fixing screws (16) are made up of polytetrafluoroethylene (PTFE), so design the distance between convenient regulation each pair electrode.
As shown in figure 3, electrode (15) is the finger-type electrode that brass is processed, there are the wide cracks of 8mm on electrode, therebetween may be used
To place insulating materials model (18), and fastened by fixing screws (19), screw is made up of polytetrafluoroethylene (PTFE).
As shown in figure 4, low-pressure sleeve (3) includes the insulated column (20) and copper rod (21) that polytetrafluoroethylene (PTFE) is made, using whole
Four copper rods are cast in an insulated column by the form of body cast, insulated column a diameter of 100mm, high 100mm, and there is ripple on surface
Line, it is possible to increase its proof voltage ability.
The specific connected mode of experimental provision of the present invention is as follows：
The filter holder means (2) for loading the multipair electrode (15) are placed inside experiment chamber (1), particularly the support
(17) electrode (15) is fixed between two vertical plates, and the electrode (15) is solid by first fixing screws (16)
It is fixed；The insulating materials sample (18) is laid between the electrode (15) inside, and the insulating materials sample (18) passes through
The second fixing screws (19) being made up of polytetrafluoroethylene (PTFE) are fixed.
The left side for testing chamber (1) is provided with first electrode outlet, and high pressure exit is first electrode outlet, the height
Press exit to be insulated by high pressure sleeve (14) with the experiment chamber (1), and a copper rod is set in the high pressure sleeve (14)
(21), copper rod (21) one end is connected with the multipair electrode (15), copper rod (21) other end and the high voltage power supply (13) one end
It is connected, high voltage power supply (13) other end ground connection.The other end of copper rod (21) is also connected to described by high-voltage probe (12)
On oscillograph (11).
The downside for testing chamber (1) is provided with second electrode outlet, and low pressure exit is second electrode outlet, described low
Press exit to be insulated by low-pressure sleeve (3) with the experiment chamber (1), and many copper rods are set in the low-pressure sleeve (3)
(21), copper rod (21) one end is connected one by one with the multipair electrode (15), and copper rod (21) other end draws a ground electrode respectively
Lead is connected to the ground by a corresponding low tension switch (9)；And multiple low tension switches (9) pass through a Rogowski coil
(10) it is connected on the oscillograph (11).The downside of experiment chamber (1) is also communicated with molecular pump.
The right side of experiment chamber (1) is connected by vacuum valve with gas cylinder (7), and electromagnetism is provided between vacuum valve in gas cylinder (7)
Valve (6), magnetic valve (6) is connected with flowmeter (5).
The specifically used method of experimental provision of the present invention is as follows：
Step 1：It is determined that a whole set of experimental provision connection is intact, K1, K2, K3, K4 in low tension switch (9) are in disconnecting shape
The distance of four pairs of electrodes (15) in state, adjustment filter holder means (2), places four experiment samples, electrode suppor system is inserted
Test in chamber (1), connection line, enclosed experiment chamber (1).It is vacuumized with molecular pump (8), vacuum valve (4) injection gas is opened
Body.
Step 2：When research edge flashing experimental features under same atmospheric pressure Different electrodes distance, to experiment chamber (1)
Fill SF6Gas pressure to needed for testing, closes vacuum valve (4), opens high voltage power supply (13), switched by closed low in (9)
K1, K2, K3, K4 selection Different electrodes ground connection, and then select different experimental group electrodes, pressurization research insulating materials model
Flashover property.
When studying the flashover experimental features under same flashover distance gas with various pressure, the spacing of four pairs of electrodes is kept
From identical, the SF of certain pressure intensity is filled with experiment intracavitary6K1 in gas, closed low switch (9), studies coupled exhausted
The flashover property of edge material model (18), continues the K2 being forced into another pressure, closed low switch (9), studies another sample
This flashover property, the like.
Step 3：At the end of experiment, high voltage power supply (13) is closed, low tension switch (9) is disconnected, collected in processing experiment chamber (1)
SF6Gas, opens experiment chamber and takes out insulating materials model (18).
The invention experimental provision can be used not only for the edge of above research gas with various pressure and different gap under
Face flashover experiment, can also be by changing the species of electrode, changing the distance between each pair electrode come the electric discharge spy of learning gas
Property.
Certainly, the present invention can also have other various embodiments, ripe in the case of without departing substantially from spirit of the invention and its essence
Various corresponding changes and deformation, but these corresponding changes and change ought can be made according to the present invention by knowing those skilled in the art
Shape should all belong to the protection domain of appended claims of the invention.
Claims (9)
1. one kind is in SF6The device of insulating materials edge flashing experiment is carried out in gas, described device includes carrying the SF6Gas
Body carries out the experiment chamber (1) of insulating materials edge flashing experiment, the flowmeter (5) of electromagnetic valve for adjusting (6), according to the flowmeter
(5) regulation control enters the magnetic valve (6) of described experiment chamber (1) interior gas velocity, carries the SF6Gas and experiment
Gas cylinder (7), the control gas of gas enter the vacuum valve (4) of the experiment chamber (1), the experiment chamber (1) are taken out
The molecular pump (8) of vacuum, the oscillograph (11) of the high pressure in the measurement input experiment chamber (1) and flashover voltage, in electrode
(15) the insulating materials sample (18) and high voltage power supply (13) of insulating materials edge flashing experiment are carried out between, its feature exists
In,
Described device also includes：
Load the filter holder means (2) of the multipair electrode (15)；
High pressure exit, is the first electrode outlet being located on the experiment chamber (1), and the high pressure exit passes through high gland
Cylinder (14) insulate with the experiment chamber (1)；
A copper rod (21) is set in the high pressure sleeve (14), described copper rod (21) one end is connected with the multipair electrode (15),
Copper rod (21) other end is connected with the high voltage power supply (13), and the other end of the copper rod (21) also passes through high-voltage probe
(12) it is connected on the oscillograph (11)；
Low pressure exit, is the second electrode outlet being located on the experiment chamber (1), and the low pressure exit passes through low pressure set
Cylinder (3) insulate with the experiment chamber (1)；
The many copper rods (21), many described copper rod (21) one end and the multipair electrode are set in the low-pressure sleeve (3)
(15) it is connected one by one, many described copper rod (21) one end are drawn a ground electrode lead and opened by a corresponding low pressure respectively
(9) are closed to be connected to the ground；Multiple low tension switches (9) are connected on the oscillograph (11) by a Rogowski coil (10)；
Gas cylinder (7) is made up of two sub- gas cylinders, the SF6Gas and experimental gas are respectively placed in described two sub- gas cylinders, and institute
Experimental gas is stated for N2Or CF4；
The filter holder means (2) include support (17) and the first fixing screws (16), and the support (17) and described first is consolidated
The material for determining screw (16) is polytetrafluoroethylene (PTFE)；
The electrode (15) is to have the placement insulating materials sample between the finger-type electrode that brass is made, electrode (15) inside
The gap of this (18), the gap width is 6-10mm.
2. as claimed in claim 1 in SF6The device of insulating materials edge flashing experiment is carried out in gas, it is characterised in that
The support (17) is bonded by two vertical plates and a level board, and thickness of slab is 20mm；And it is described two vertical
The electrode (15) is fixed between plate, the electrode (15) is fixed by first fixing screws (16), and the electrode
(15) the distance between adjacent for 100mm, the clearance distance between electrode (15) described in each pair is adjustable for 0~10mm.
3. as claimed in claim 1 in SF6The device of insulating materials edge flashing experiment is carried out in gas, it is characterised in that
The thickness of the insulating materials sample (18) is less than 5mm, passes through the second fixing screws (19) being made up of polytetrafluoroethylene (PTFE)
It is fixed.
4. as claimed in claim 1 in SF6The device of insulating materials edge flashing experiment is carried out in gas, it is characterised in that
Polytetrafluoroethylene (PTFE), and institute are poured into a mould in the low-pressure sleeve (3) and the high pressure sleeve (14) around the copper rod (21)
The many copper rods (21) stated in low-pressure sleeve (3) are insulated from each other.
5. as claimed in claim 1 in SF6The device of insulating materials edge flashing experiment is carried out in gas, it is characterised in that institute
It is closed experiment cavity to state experiment chamber (1), is made up of stainless steel material.
6. as claimed in claim 1 in SF6The device of insulating materials edge flashing experiment is carried out in gas, it is characterised in that
At most have in the low tension switch (9) and insulated between a closure, the two-termial line of multiple low tension switches (9).
7. as claimed in claim 1 in SF6The device of insulating materials edge flashing experiment is carried out in gas, it is characterised in that
The low-pressure sleeve (3) is connected one by one by 4 copper rods (21) with 4 pairs of electrodes (15), and draws one respectively
Root ground electrode lead is connected to the ground by a corresponding low tension switch (9)；
Wherein, four low tension switches (9) are made up of four low tension switches being independent of each other K1, K2, K3, K4, each low pressure
Switch whether electrode (15) described in controlling a pair is grounded.
8. as claimed in claim 1 in SF6The device of insulating materials edge flashing experiment is carried out in gas, it is characterised in that
The low-pressure sleeve (3) includes insulated column (20) and many copper rods (21) that polytetrafluoroethylene (PTFE) is made, using entirety
The many copper rods (21) are cast in insulated column (20) by the form of cast.
9. it is a kind of as claimed in claim 1 in SF6The user that the device of insulating materials edge flashing experiment is carried out in gas
Method, it is characterised in that comprise the following steps：
Step 1, all parts of described device are connected, multiple low tension switches (9) are placed in off-state, adjustment is described
The distance between multipair described electrode (15) in filter holder means (2), places the insulating materials sample (18), by the support
Device (2) is inserted in the experiment chamber (1), connection line, closes the experiment chamber (1)；It is right with the molecular pump (8)
It is vacuumized, and opens vacuum valve (4) the injection gas；
Step 2, when research edge flashing experimental features under same atmospheric pressure Different electrodes distance, to the experiment chamber (1)
Insufflation gas close the vacuum valve (4) to required pressure, open the high voltage power supply (13), multipair described low by closing
Compress switch (9) selection Different electrodes ground connection, and then selects different experimental group electrode pressurizations to be tested；
When flashover experimental features of the research under same flashover distance gas with various pressure, keep the multipair electrode (15) it
Between distance it is identical, in experiment chamber (1) the interior insufflation gas to required pressure, close appointing in the multipair low tension switch (9)
What one, the flashover property experiment of the coupled insulating materials sample (18) is carried out, successively to insulation material other described
The flashover property of material sample (18) is tested；
Step 3, experiment terminates, and closes the high voltage power supply (13), disconnects multiple low tension switches (9), collects the experiment
Chamber (1) interior gas, opens the experiment chamber (1) and takes out multiple insulating materials samples (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410722931.2A CN104764982B (en) | 2014-12-01 | 2014-12-01 | A kind of device and its application method for carrying out insulating materials edge flashing experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410722931.2A CN104764982B (en) | 2014-12-01 | 2014-12-01 | A kind of device and its application method for carrying out insulating materials edge flashing experiment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104764982A CN104764982A (en) | 2015-07-08 |
| CN104764982B true CN104764982B (en) | 2017-09-12 |
Family
ID=53646935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410722931.2A Active CN104764982B (en) | 2014-12-01 | 2014-12-01 | A kind of device and its application method for carrying out insulating materials edge flashing experiment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104764982B (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107728023B (en) * | 2017-10-27 | 2024-04-02 | 苏州华电电气股份有限公司 | Pressure measuring system for partial pressure of integrated series resonance inductance |
| CN108241019A (en) * | 2018-01-15 | 2018-07-03 | 天津大学 | A kind of high-temperature superconductor insulating materials flashover property test device and method |
| CN108398620B (en) * | 2018-02-12 | 2020-10-09 | 西北核技术研究所 | Surface flashover experiment sample replacing device, experiment device and sample replacing method |
| CN110161109B (en) * | 2018-03-21 | 2024-09-24 | 中国人民解放军陆军工程大学 | Along face flashover experimental apparatus |
| CN108519545B (en) * | 2018-06-05 | 2023-08-08 | 沈阳工业大学 | High-voltage insulator surface flashover experimental device and method under extremely cold condition |
| CN108957254B (en) * | 2018-06-05 | 2023-10-27 | 沈阳工业大学 | Device and method for testing surface flashover characteristics of insulator under electric heating composite field |
| CN108957259B (en) * | 2018-07-09 | 2020-08-11 | 上海交通大学 | Transformer oil paper insulation surface flashover and breakdown combined testing device |
| CN108919073B (en) * | 2018-07-16 | 2023-08-11 | 沈阳工业大学 | Insulator surface flashover discharge energy measurement device and method |
| CN109358224A (en) * | 2018-09-30 | 2019-02-19 | 天津大学 | Polypropylene film flashover voltage measuring device and method under a kind of temperature gradient |
| CN109406973A (en) * | 2018-12-12 | 2019-03-01 | 国家电网有限公司 | It is a kind of to simulate under different defects along the device of face arcing fault |
| CN109799441A (en) * | 2019-03-29 | 2019-05-24 | 云南电网有限责任公司电力科学研究院 | A kind of rotary GIS simulation tank body creeping discharge quick experiment device |
| CN111678982B (en) * | 2020-06-24 | 2022-03-29 | 广东电网有限责任公司电力科学研究院 | Experimental method and device for detecting gas-solid insulation compatibility of substitute gas |
| CN111751684A (en) * | 2020-07-06 | 2020-10-09 | 华北电力大学 | Insulation material's along surface flashover discharge measuring device under high frequency excitation |
| CN112198340A (en) * | 2020-09-29 | 2021-01-08 | 山东电力研究院 | Insulating base for testing flashover characteristic of coating, preparation method and application |
| CN113092967A (en) * | 2021-04-12 | 2021-07-09 | 哈尔滨理工大学 | Solid insulation medium and inorganic powder macroscopic interface creeping discharge test system |
| CN114200259A (en) * | 2021-11-23 | 2022-03-18 | 国网北京市电力公司 | High-voltage cable joint composite interface insulation characteristic detection device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2138651Y (en) * | 1992-09-04 | 1993-07-21 | 中央民族学院 | Surface modifying device for composite plasma material |
| CN103415135A (en) * | 2013-09-02 | 2013-11-27 | 哈尔滨工业大学 | Device and method for discharging plasma in enhanced way under high speed flow environment |
| CN103913682B (en) * | 2014-03-28 | 2016-03-30 | 重庆大学 | Be applied to insulating gas insulating property experimental system and the method thereof of electrical equipment |
| CN104166055A (en) * | 2014-09-10 | 2014-11-26 | 国家电网公司 | Automatic measuring system for insulating material surface charge two-dimensional distribution |
| CN204422701U (en) * | 2014-12-01 | 2015-06-24 | 吉林省电力科学研究院有限公司 | A kind of at SF 6the device of insulating material edge flashing experiment is carried out in gas |
-
2014
- 2014-12-01 CN CN201410722931.2A patent/CN104764982B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104764982A (en) | 2015-07-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104764982B (en) | A kind of device and its application method for carrying out insulating materials edge flashing experiment | |
| CN110568326B (en) | Electric-thermal combined aging and gas decomposition test device and application method | |
| CN102096032B (en) | Experimental facility and method for electric heating combined stress aging with oil-paper insulation of transformer | |
| CN109581158B (en) | Comprehensive test platform and test method for transformer oiled paper insulating material | |
| CN203572919U (en) | Parameter-adjustable along-surface discharge test model | |
| CN105913984A (en) | Device and method for processing surface of basin-type insulator by means of glow discharge fluorination | |
| CN108519545A (en) | It is a kind of it is extremely cold under the conditions of high-tension insulator edge flashing experimental provision and method | |
| CN106093723B (en) | DC Insulator insulation test device and method | |
| CN201434794Y (en) | SF* gas degradation simulation device under high-voltage discharge | |
| CN104076258A (en) | Discharge generation device of discharge simulation experiment system for particles in transformer oil | |
| CN208314084U (en) | A kind of polymer surfaces charge and trap level characteristic measuring device | |
| CN110297164A (en) | Sulfur hexafluoride decomposition product extraction element and system based on different faults type | |
| CN109406973A (en) | It is a kind of to simulate under different defects along the device of face arcing fault | |
| CN109254233A (en) | A kind of transformer electric fault gas simulator | |
| CN107797032B (en) | Overheat simulation device and experimental method for gas insulation equipment under real condition | |
| CN104820171A (en) | Partial discharge test oil cup for oil-paper insulation | |
| CN101598639B (en) | Electrification oil sample acquisition device for oil-immersed sleeve pipe of transformer | |
| CN103344547A (en) | Experiment device for simulation of stray current corrosion in soil | |
| CN204422701U (en) | A kind of at SF 6the device of insulating material edge flashing experiment is carried out in gas | |
| CN110308388A (en) | It is a kind of for testing the device and test method of the electric property of GIS insulated pull rod | |
| CN103901276A (en) | Measuring equipment and method for detecting conductivity of oilpaper in high-voltage direct-current electric field | |
| CN208314123U (en) | It is a kind of it is extremely cold under the conditions of high-tension insulator edge flashing experimental provision | |
| CN104215884A (en) | Gas insulation state simulation test device and gas insulation state test method | |
| CN203275582U (en) | Gas insulated state simulation and detection device | |
| CN210572118U (en) | High-pressure high-voltage insulating gas discharge and decomposition experimental equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |