CN110133461A - The ageing test apparatus and application method of transformer insulated oilpaper - Google Patents
The ageing test apparatus and application method of transformer insulated oilpaper Download PDFInfo
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- CN110133461A CN110133461A CN201910531374.9A CN201910531374A CN110133461A CN 110133461 A CN110133461 A CN 110133461A CN 201910531374 A CN201910531374 A CN 201910531374A CN 110133461 A CN110133461 A CN 110133461A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/18—Performing tests at high or low temperatures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0425—Test clips, e.g. for IC's
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- 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
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- 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
- G01R31/16—Construction of testing vessels; Electrodes therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
- G01N2203/0226—High temperature; Heating means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0278—Thin specimens
- G01N2203/0282—Two dimensional, e.g. tapes, webs, sheets, strips, disks or membranes
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Abstract
The present invention relates to electrical material insulation technology fields, disclose the ageing test apparatus and application method of a kind of transformer insulated oilpaper.The ageing test apparatus of transformer insulated oilpaper includes thermal stress test cell, electric stress test cell and mechanical stress test cell, and thermal stress test cell includes chamber, is equipped with heating component in chamber；Electric stress test cell includes the electrode plate being arranged in chamber, and the both ends of electrode plate are symmetrically arranged with clamping component；Mechanical stress test cell is equipped with two groups, is symmetricly set on the two sides of chamber, and mechanical stress test cell includes pulling force index meter and the driving assembly for driving the pulling force index meter movement, and pulling force index meter is detachably connected with clamping component.The ageing test apparatus of transformer insulated oilpaper provided by the invention realizes " electro-mechanical-heat " joint degradation of empire paper, can influence of a variety of stress of comprehensive study to the agine mechaism and service life of empire paper.
Description
Technical field
The present invention relates to a kind of degradation of electrical material insulation technology field more particularly to transformer insulated oilpaper dresses
It sets and application method.
Background technique
Large-scale power transformer is the core equipment of network system, and equipment the most costly, complicated, carries electric power
The electrical energy transportation task of backbone network, built-in electrical insulation is mainly using oil-paper combination insulation structure.Oil-paper combination insulation conduct
A kind of important and excellent insulation combination mode, is employed successfully in always among the major insulation of high-power transformer.
The operating condition of large-scale power transformer is complex, and oilpaper is in the operation of the transformer by electric stress, heat
The multiple-factors such as stress and mechanical stress combine aging action.It is the single heat for oilpaper in the experimental rig of existing research
Aging is tested, and studies mechanism and life prediction of oilpaper heat ageing etc. on this basis, and experimental rig tests oilpaper performance
Relatively simple, the prediction of research and service life to the mechanism of oilpaper aging is not accurate enough.
Influence for a variety of stress of comprehensive study to paper oil insulation material aging mechanism, life prediction, foundation are more sticked on
The experiment porch of nearly large-scale power transformer actual operating mode, it is urgent to provide " electric-thermals-machine " of a kind of transformer insulated oilpaper
Joint ageing test apparatus.
Summary of the invention
The purpose of the present invention is to provide a kind of ageing test apparatus of transformer insulated oilpaper, realize empire paper
" electro-mechanical-heat " combines degradation, and the energy a variety of stress of comprehensive study are to the agine mechaism of empire paper and the shadow of service life
It rings.
It is simple controllable in operation it is an object of the invention to additionally provide a kind of application method.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of ageing test apparatus of transformer insulated oilpaper, comprising:
Thermal stress test cell, including chamber, the chamber is interior to be equipped with heating component；
Electric stress test cell, including the electrode plate being arranged in the chamber, the electrode plate include it is horizontal and
Every the first electrode plate and second electrode plate of setting, the both ends of the electrode plate are symmetrically arranged with clamping component；
Mechanical stress test cell is equipped with two groups, and mechanical stress test cell described in two groups is symmetricly set on the examination
The two sides of tryoff, the mechanical stress test cell include pulling force index meter and the driving group for driving the pulling force index meter movement
Part, the pulling force index meter are detachably connected with the clamping component.
Preferably, the clamping component includes clamping jaw and pull rod, and one end of the pull rod is connect with the clamping jaw, the drawing
The other end of bar is arranged in the chamber and connect with the pulling force index meter.
Preferably, the clamping jaw includes:
Fixing piece, the fixing piece are connect with the pull rod；
First clamping plate, one end of the first clamping plate are connect with the fixing piece；
Second clamping plate, one end of the second clamping plate are connect with the fixing piece, and the second clamping plate and described first
The setting of clamping plate parallel interval, the other end of the second clamping plate and the other end of the first clamping plate are connected by least one bolt
It connects.
Preferably, the side wall of the chamber is provided with mounting hole, and sealing ring is equipped on the mounting hole, the pull rod
One end is arranged in the sealing ring.
Preferably, the top of the chamber is equipped with case lid, the case lid and the chamber split settings, the case lid
It is equipped with gas injection port, exhaust outlet and pressure-control valve.
Preferably, the first electrode plate is connect with the case lid, and the first electrode plate connects high voltage power supply, described
Second electrode plate is connect with the bottom of the chamber, the chamber ground line.
Preferably, insulating layer is coated on the outside of the chamber.
Preferably, temperature sensor is equipped in the chamber, between the first electrode plate and the second electrode plate
For placing empire paper, the temperature sensor and the empire paper are placed in same level.
Preferably, the driving component includes:
Base；
Screw rod, the both ends of the screw rod are rotatablely connected with the base respectively, and one end of the screw rod is connected with runner；
Screw, the screw match connection with the screw rod, and the pulling force index meter is arranged on the screw.
A kind of application method, in the ageing test apparatus applied to above-mentioned transformer insulated oilpaper, comprising the following steps:
Empire paper is placed between first electrode plate and second electrode plate, clamping component clamps the empire paper
Both ends；
Insulating oil in chamber is heated to specified temperature, applies specified voltage to electrode plate, starts driving group
Part adjusts the pulling force applied to the empire paper；
Reach the aging duration of setting, heating component stops heating, closes the high voltage power supply connecting with the electrode plate, institute
Driving assembly is stated to stop adjusting the pulling force for applying the empire paper；
It takes out the empire paper in chamber and analyzes the electrical characteristic of the empire paper.
Beneficial effects of the present invention:
The present invention provides a kind of ageing test apparatus of transformer insulated oilpaper, can apply electricity to empire paper simultaneously and answer
Power, thermal stress and mechanical stress realize " electro-mechanical-heat " joint degradation of empire paper, accurately obtain empire paper
Electrical characteristic under a variety of stress, and analyze and obtain a variety of stress to the agine mechaism and service life of empire paper
Influence.
The present invention also provides a kind of application method, on the ageing test apparatus applied to transformer insulated oilpaper, operation
Simply, controllability is good.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the ageing test apparatus of transformer insulated oilpaper described in the embodiment of the present invention one；
The step of Fig. 2 is the ageing test apparatus application method of transformer insulated oilpaper described in the embodiment of the present invention two stream
Cheng Tu.
In figure:
11, chamber；12, heating rod；13, case lid；14, gas injection port；15, exhaust outlet；16, pressure-control valve；17, electric wire
Mouthful；
21, electrode plate；211, first electrode plate；212, second electrode plate；22, clamping component；221, clamping jaw；2211, solid
Determine part；2212, first clamping plate；2213, second clamping plate；2214, bolt；222, pull rod；
31, pulling force index meter；32, driving assembly；321, base；322, screw；323, runner；
4, high voltage power supply；
5, mechanical stretching platform.
Specific embodiment
To keep the technical problems solved, the adopted technical scheme and the technical effect achieved by the invention clearer, below
It will be described in further detail in conjunction with technical solution of the attached drawing to the embodiment of the present invention, it is clear that described embodiment is only
It is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those skilled in the art exist
Every other embodiment obtained under the premise of creative work is not made, shall fall within the protection scope of the present invention.
In the description of the present invention unless specifically defined or limited otherwise, term " connected ", " connection ", " fixation " are answered
It is interpreted broadly, for example, it may be being fixedly connected, may be a detachable connection, or is integral；It can be mechanical connection,
It can be electrical connection；It can be directly connected, the company inside two elements can also be can be indirectly connected through an intermediary
Logical or two elements interaction relationship.For the ordinary skill in the art, can be understood with concrete condition above-mentioned
The concrete meaning of term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
Embodiment one
As shown in Figure 1, the embodiment of the invention provides a kind of ageing test apparatus of transformer insulated oilpaper, including it is used for
Test the thermal stress test cell of the thermal stress of empire paper, the electric stress test cell of electric stress for testing empire paper
And the mechanical stress test cell of the mechanical stress for testing empire paper.
Specifically, thermal stress test cell includes chamber 11, and the top of chamber 11 is equipped with case lid 13, case lid 13 and examination
11 split settings of tryoff, case lid 13 are equipped with gas injection port 14, exhaust outlet 15, pressure-control valve 16 and electric wire mouth 17.Exhaust outlet 15
For extracting the air in chamber 11 out, gas injection port 14 is used to inject nitrogen into chamber 11, what empire paper aging generated
Gas causes 11 internal pressure of chamber excessive, and pressure-control valve 16 is used to adjust the air pressure in chamber 11.
Electric stress test cell is placed in chamber 11, electric stress test cell includes electrode plate 21, and electrode plate 21 includes
First electrode plate 211 and second electrode plate 212, first electrode plate 211 and second electrode plate 212 are horizontal and are arranged at intervals on test
In case 11.Specifically, wherein 211 plate of first electrode is connect with case lid 13, and the connection high voltage power supply 4 of first electrode plate 211, and second
Electrode plate 212 is connect with the bottom of chamber 11, and chamber 11 is grounded.When removing case lid 13, first electrode plate 211 also with
Case lid 13 is removed together, and then empire paper is placed on second electrode plate 212, covers case lid 13, and empire paper is placed in
Between one electrode plate 211 and second electrode plate 212.High voltage power supply 4 is powered, and applies voltage to empire paper, tester can be with
The size for adjusting voltage, applies the pressure-resistant performance on different transformers to test empire paper.High voltage power supply 4 has
Short-circuit protection function ensure that the safety in test process.
Further, first electrode plate 211 and second electrode plate 212 are made of copper, first electrode plate 211 and the second electricity
The surface of pole plate 212 is smooth, and the edge of first electrode plate 211 and second electrode plate 212 carries out chamfered, can be to insulation
Oilpaper applies uniform electric field, preferably tests the pressure-resistant performance of empire paper.
The two o'clock of electrode plate 21 is symmetrically arranged with clamping component 22 in chamber 11, and clamping component 22 is for fixing empire paper
Both ends, empire paper is fixed between first electrode plate 211 and second electrode plate 212.In the present embodiment, clamping component
22 include clamping jaw 221 and pull rod 222, and one end of pull rod 222 is connect with clamping jaw 221, and the side wall of chamber 11 is provided with mounting hole, is drawn
The other end of bar 222 passes through mounting hole and is placed in outside chamber 11.
Due to needing to inject insulating oil in chamber 11, insulating oil leakage in order to prevent, be provided at mounting hole three layers it is resistance to
Heat seal circle, pull rod 222 is arranged in sealing ring, and the side wall of pull rod 222 is bonded with sealing ring, efficiently avoids insulating oil
Leakage.
In the present embodiment, clamping jaw 221 includes fixing piece 2211, and fixing piece 2211 is connect with pull rod 222, fixing piece 2211
It is equipped with first clamping plate 2212 and second clamping plate 2213, first clamping plate 2212 is parallel with second clamping plate 2213 and interval is arranged, the
It is also connected with bolt 2214 between one clamping plate 2212 and second clamping plate 2213, screws bolt 2214, adjusts 2212 He of first clamping plate
Spacing between second clamping plate 2213 is to clamp or release empire paper.In other implementations, clamping jaw 221 can also be other
Structure, such as Pneumatic paw clamp empire paper, herein no longer narration in detail.
Thermal stress test cell is equipped in chamber 11, thermal stress test cell includes heating component, and heating component will be tried
Insulating oil in tryoff 11 is heated to specified temperature.In the present embodiment, heating component is preferably heating rod 12, heating rod 12
The bottom of chamber 11 is set, insulating oil can not only be evenly heated, will not also be generated with electrode plate 21 and clamping component 22 dry
It relates to.
Temperature sensor (not shown) is additionally provided in chamber 11, preferable temperature sensor is placed in empire paper
Same level, temperature sensor are arranged close to empire paper.Temperature sensor acquires the temperature value near empire paper, and
Control system is fed back to, control system controls the heating temperature of heating rod 12, realizes the real-time, quasi- of empire paper aging temperature
True temperature control.Wherein heating rod 12 also has overheating protection function, had not only controlled the temperature of insulating oil heating but also had extended
The service life of heating rod 12.
In the present embodiment, the outside of chamber 11 is also wrapped on insulating layer, reduces what temperature in chamber 11 declined
Speed has saved the energy.
Mechanical stress test cell is equipped with two groups, and two groups of mechanical stress test cells are symmetricly set on the two of chamber 11
Side, mechanical stress test cell include the driving assembly 32 of pulling force index meter 31 and the driving movement of pulling force index meter 31, and pulling force refers to
Number meter 31 and the pull rod 222 of clamping component 22 are detachably connected.
In the present embodiment, driving assembly 32 include base 321, screw rod and screw 322, the two of screw rod (not shown)
End is rotatablely connected with base 321 respectively, and one end of screw rod is connected with runner 323, and the two sides of screw rod are equipped with guide rod (in figure not
Show), two guide rods are parallel with screw rod.Screw 322 and the guide rod being arranged on screw rod are slidably connected, hand runner 323,
Screw 322 is moved along guide rod.Pulling force index meter 31 is arranged on screw 322, and hook, pull rod are additionally provided in pulling force index meter 31
It is provided with hole on 222, is articulated on hole, hand runner 323, the mechanical stress test cell of two sides, which applies empire paper, to be drawn
Power, and the size of pulling force can be shown in pulling force index meter 31, and tester is facilitated to adjust the size of pulling force.
In order to avoid there is the problem of rupturing at clamping, the first clamping plate of clamping jaw 221 during stretching in empire paper
2212 and the edge of second clamping plate 2213 be polished into fillet.
The ageing test apparatus of transformer insulated oilpaper provided in this embodiment can apply electricity to empire paper simultaneously and answer
Power, thermal stress and mechanical stress realize " electro-mechanical-heat " joint degradation of empire paper, accurately obtain empire paper
Electrical characteristic under a variety of stress, and analyze and obtain a variety of stress to the agine mechaism and service life of empire paper
Influence.
Embodiment two
As shown in Fig. 2, the aging applied to above-mentioned transformer insulated oilpaper tries the present embodiment provides a kind of application method
In experiment device comprising following steps:
Step 1: empire paper to be aging is taken to be pre-processed.
Specifically, it cuts the empire paper of suitable dimension and is fitted into beaker, place the beaker in vacuum oven, do
Temperature setting in dry case is 105 DEG C, and pressure is set as 50Pa, dry 48h.It takes insulating oil to pour into another beaker, and puts
Entering temperature is 60 DEG C, is de-gassed dry 48h in the drying box that pressure is 50Pa.
Step 2: carrying out vacuum oil immersion processing to empire paper.
Temperature setting in chamber 11 is 40 DEG C, and under conditions of 40 DEG C of constant temperature, empire paper is placed into the second electricity
On pole plate 212, the dry insulating oil of degassing is added into chamber 11, covers case lid 13, is arranged to 50Pa's in chamber 11
Vacuum environment, varnished insulation oilpaper are cooled to room temperature afterwards for 24 hours.Then the both ends of empire paper are clamped with clamping component 22 solid
It is fixed, the air in chamber 11 is extracted out by exhaust outlet 15, nitrogen is then injected into chamber 11 by gas injection port 14.
Step 3: chamber 11 is placed on the mechanical stretching platform 5 between two groups of mechanical stress test cells, will draw
Power index meter 31 is connect with pull rod 222.
Specifically, when placing chamber 11, pull rod 222 and the hook of pulling force index meter 31 is made to be placed in same level
On, facilitate and hook is articulated on pull rod 222.
Step 4: the insulating oil in chamber 11 to be heated to specified temperature, apply specified voltage to electrode plate 21,
Starting driving assembly 32 adjusts the pulling force applied to the empire paper.
Specifically, according to testing requirement, start the insulating oil in 12 heat run case 11 of heating rod to the temperature specified, it is right
Electrode plate 21 applies specified voltage, adjusts the position between two pulling force index meters 31, and empire paper is made to bear specified drawing
Force value may be implemented to combine degradation to " electro-mechanical-heat " of empire paper, can also need to test according to test therein
A kind of stress parameters or two kinds of stress parameters.
Step 5: reaching the aging duration of setting, heating component stops heating, closes the height connecting with the electrode plate 21
Voltage source 4, the driving component 32 stop adjusting the pulling force for applying the empire paper.
Step 6: taking out the empire paper in chamber 11 and analyzing the electrical characteristic of the empire paper.
Obviously, the above embodiment of the present invention is just for the sake of clearly illustrating examples made by the present invention, and being not is pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
Made any modifications, equivalent replacements, and improvements etc., should be included in the claims in the present invention within the spirit and principle of invention
Protection scope within.
Claims (10)
1. a kind of ageing test apparatus of transformer insulated oilpaper characterized by comprising
Thermal stress test cell, including chamber (11), the chamber (11) is interior to be equipped with heating component；
Electric stress test cell, including the electrode plate (21) being arranged in the chamber (11), the electrode plate (21) includes
The both ends of horizontal and spaced first electrode plate (211) and second electrode plate (212), the electrode plate (21) are symmetrically arranged with
Clamping component (22)；
Mechanical stress test cell is equipped with two groups, and mechanical stress test cell described in two groups is symmetricly set on the chamber
(11) two sides, the mechanical stress test cell include that pulling force index meter (31) and the driving pulling force index meter (31) are mobile
Driving assembly (32), the pulling force index meter (31) is detachably connected with the clamping component (22).
2. the ageing test apparatus of transformer insulated oilpaper according to claim 1, which is characterized in that the clamping component
It (22) include clamping jaw (221) and pull rod (222), one end of the pull rod (222) is connect with the clamping jaw (221), the pull rod
(222) the other end is arranged in the chamber (11) and connect with the pulling force index meter (31).
3. the ageing test apparatus of transformer insulated oilpaper according to claim 2, which is characterized in that the clamping jaw
(221) include:
Fixing piece (2211), the fixing piece (2211) connect with the pull rod (222)；
One end of first clamping plate (2212), the first clamping plate (2212) is connect with the fixing piece (2211)；
One end of second clamping plate (2213), the second clamping plate (2213) is connect with the fixing piece (2211), and described second
Clamping plate (2213) and the first clamping plate (2212) parallel interval are arranged, the other end of the second clamping plate (2213) and described the
The other end of one clamping plate (2212) is connected by least one bolt (2214).
4. the ageing test apparatus of transformer insulated oilpaper according to claim 2, which is characterized in that the chamber
(11) side wall is provided with mounting hole, and sealing ring is equipped on the mounting hole, and one end of the pull rod (222) is arranged in described close
Seal.
5. the ageing test apparatus of transformer insulated oilpaper according to claim 1, which is characterized in that the chamber
(11) top is equipped with case lid (13), the case lid (13) and the chamber (11) split settings, sets on the case lid (13)
There are gas injection port (14), exhaust outlet (15) and pressure-control valve (16).
6. the ageing test apparatus of transformer insulated oilpaper according to claim 5, which is characterized in that the first electrode
Plate (211) is connect with the case lid (13), and the first electrode plate (211) connection high voltage power supply (4), the second electrode plate
(212) it is connect with the bottom of the chamber (11), chamber (11) ground line.
7. the ageing test apparatus of transformer insulated oilpaper according to claim 1, which is characterized in that the chamber
(11) insulating layer is coated on the outside of.
8. the ageing test apparatus of transformer insulated oilpaper according to claim 1, which is characterized in that the chamber
(11) temperature sensor is equipped in, for placing insulation between the first electrode plate (211) and the second electrode plate (212)
Oilpaper, the temperature sensor and the empire paper are placed in same level.
9. the ageing test apparatus of transformer insulated oilpaper according to claim 2, which is characterized in that the driving component
(32) include:
Base (321)；
Screw rod, the both ends of the screw rod are rotatablely connected with the base (321) respectively, and one end of the screw rod is connected with runner
(323)；
Screw (322), the screw (322) match connection with the screw rod, the pulling force index are arranged on the screw (322)
It counts (31).
10. a kind of application method, which is characterized in that applied to the described in any item transformer insulated oilpaper of claim 1-9
In ageing test apparatus, comprising the following steps:
Empire paper is placed between first electrode plate (211) and second electrode plate (212), described in clamping component (22) clamping
The both ends of empire paper；
Insulating oil in chamber (11) is heated to specified temperature, electrode plate (21) are applied with specified voltage, starting is driven
Dynamic component (32) adjust the pulling force applied to the empire paper；
Reach the aging duration of setting, heating component stops heating, closes the high voltage power supply connecting with the electrode plate (21)
(4), the driving component (32) stops adjusting the pulling force for applying the empire paper；
It takes out the empire paper in chamber (11) and analyzes the electrical characteristic of the empire paper.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910531374.9A CN110133461A (en) | 2019-06-19 | 2019-06-19 | The ageing test apparatus and application method of transformer insulated oilpaper |
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| CN201910531374.9A CN110133461A (en) | 2019-06-19 | 2019-06-19 | The ageing test apparatus and application method of transformer insulated oilpaper |
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| CN110133461A true CN110133461A (en) | 2019-08-16 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111044868A (en) * | 2020-01-17 | 2020-04-21 | 福建农林大学 | Insulation material electric tree aging device and working method thereof |
| CN111413544A (en) * | 2020-03-26 | 2020-07-14 | 天津大学 | Method for judging influence of mechanical stretching on nonlinear conductivity of composite material |
| CN111781227A (en) * | 2020-06-19 | 2020-10-16 | 宁夏东方钽业股份有限公司 | Device and method for detecting high-temperature oxidation resistance of coating |
| CN113237776A (en) * | 2021-05-31 | 2021-08-10 | 青岛中和聚氨酯材料有限公司 | Polyurethane high-temperature illumination deformation detection device and detection method thereof |
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| CN113237776A (en) * | 2021-05-31 | 2021-08-10 | 青岛中和聚氨酯材料有限公司 | Polyurethane high-temperature illumination deformation detection device and detection method thereof |
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