CN109799433A - A kind of electrical performance test device and method of insulating materials - Google Patents
A kind of electrical performance test device and method of insulating materials Download PDFInfo
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- CN109799433A CN109799433A CN201910155014.3A CN201910155014A CN109799433A CN 109799433 A CN109799433 A CN 109799433A CN 201910155014 A CN201910155014 A CN 201910155014A CN 109799433 A CN109799433 A CN 109799433A
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Abstract
The invention discloses a kind of electrical performance test device and method of insulating materials, described device includes that detection unit, transition element and detection voltage introduce unit；The detection unit includes the first tooling cylinder and detection station, and detection station is arranged in the first tooling cylinder；The transition element is connect with detection unit, transition element includes the second tooling cylinder and conductive rod connecting device, conductive rod connecting device is arranged in the second tooling cylinder, the detection unit forms the first gas chamber, the transition element and the detection voltage introduce unit and form the second gas chamber, and first gas chamber and the second gas chamber are two independent sealed air chamber；The detection voltage introduces unit for will test voltage introducing；The method of test is proposed on the basis of described device, the present invention can measure to obtain this bulk breakdown voltage of insulating materials, greatly improve the speed of test inflation every time, return-air, shorten the test period, improve working efficiency, reduce experimentation cost.
Description
Technical field
The present invention relates to insulating materials to test field, in particular to the electrical performance test device of a kind of insulating materials and side
Method.
Background technique
Insulating materials is the important composition device in electric system, has extensive application in various electrical equipments, also commonly uses
In livewire work, on the power tools such as hotline maintenance and power-on serving, the superiority and inferiority of insulating material properties directly influences equipment
Operational reliability and operator personal safety, therefore, insulating materials has to carry out pressure-resistant breakdown test, it is ensured that its absolutely
Edge intensity can reach safe operation and require.
Currently, existing insulating materials electric testing device is mostly open type, what is measured is material edge flashing electricity
Pressure, is unable to get the breakdown voltage of material body.And closed gas insulation test device, it is generally used for measurement benzvalene form insulation
The electric property of the equipment such as son, GIS, and due to the complete connection of entire closed air chamber, volume is larger, and test front and back requires every time
It is inflated, return-air operation, takes a long time, test efficiency is lower.
Summary of the invention
In view of the above problems in the prior art, the object of the present invention is to provide a kind of examinations of the electric property of insulating materials
Experiment device and method.
In order to solve the above-mentioned technical problem, the specific technical solution of the present invention is as follows:
On the one hand, the present invention provides a kind of electrical performance test device of insulating materials, including detection unit, transition element
Unit is introduced with detection voltage；The detection unit includes the first tooling cylinder and detection station, and the detection station is arranged in institute
It states in the first tooling cylinder, the detection station is for fixing test specimen；The transition element passes through connection structure and the inspection
It surveys unit to be fixedly connected, the transition element includes the second tooling cylinder and conductive rod connecting device, the conduction rod connecting device
It is arranged in the second tooling cylinder；The detection voltage introduces unit and connect with the transition element, for will test voltage
Introduce the detection unit；The detection unit forms the first gas chamber, and the transition element and detection voltage introduce unit and formed
Second gas chamber, and it is independent for two by connection structure seal isolation between first gas chamber and second gas chamber
Sealed air chamber.
Further, the detection station includes first electrode, second electrode, first electrode pedestal and second electrode bottom
Seat；One end of the first electrode pedestal is fixed on the bottom plate of the first tooling cylinder, one end of the second electrode pedestal
It is fixed in the connection structure, the first electrode is connected to the other end of the first electrode pedestal, the second electrode
It is connected to the other end of the second electrode pedestal, and the first electrode and the second electrode are oppositely arranged.
Optionally, the other end of the first electrode and the first electrode pedestal is connected through a screw thread or slides tightly
It is solidly connected, the second electrode is fixedly connected with the other end of the second electrode pedestal.
Optionally, the first electrode is fixedly connected with the other end of the first electrode pedestal, second electricity
The other end of pole and the second electrode pedestal, which is connected through a screw thread or slides, to be fastenedly connected.
Optionally, the other end of the first electrode and the first electrode pedestal is connected through a screw thread or slides tightly
It is solidly connected, the other end of the second electrode and the second electrode pedestal, which is connected through a screw thread or slides, to be fastenedly connected.
Specifically, the first electrode and second electrode are plate electrode, and the first electrode and second electrode can
Adjust size the distance between relative to each other.
Further, the first tooling cylinder includes door opening and observation window, and the door opening is described for installing test specimen
Door-plate is set on door opening, the first through hole for installing air inflation nozzle is set on the door-plate；The observation window is for observing test
Process.
Specifically, metal framework, and the device organic glass on metal framework are disposed on the observation window, convenient for test
The observation of test specimen state and experimental phenomena in the process.
Optionally, the observation window is multiple, and specifically, the observation window is arranged two, is arranged at an angle
In the outer wall of the first tooling cylinder, convenient for observing experimental phenomena from different directions.
Further, the second tooling cylinder includes the second through-hole and air gauge mounting hole, and second through-hole is for pacifying
Air inflation nozzle is filled, the air gauge mounting hole is for installing air gauge, and the air gauge is for detecting the indoor gas of the second gas
The air-tightness of transition element when pressure value and long-term placement.
Further, the conductive rod connecting device includes sequentially connected conductive joint element for bar, bucking electrode and shielding
Electrode connecting plate, the bucking electrode connecting plate are fixed in the connection structure.
Specifically, the bucking electrode is cup type electrode, and the conduction joint element for bar is the electrode of falling cup type, the cup type
Electrode opening outer diameter is slightly smaller than the cup type electrode opening internal diameter, and the electrode of falling cup type protrudes into the cup type electrode
In, and the bucking electrode is connected with conductive joint element for bar by power spring.
Further, it includes gas casing and conducting rod that the detection voltage, which introduces unit, and the conducting rod is arranged in gas
In body casing, and one end of the conducting rod is fixed on the conductive joint element for bar.
Specifically, the gas casing is fixed on the second tooling cylinder by pinboard.
Further, the connection structure includes conductive structure and insulation and sealing structure, and the conduction rod connecting device is logical
It crosses conductive structure to be electrically connected with the detection station, the first tooling cylinder passes through the insulation and sealing structure and second work
Fitted tube is tightly connected.
Preferably, the connection structure is disc insulator.
Optionally, test specimen can be one in insulation tube material, insulation flaky material or insulation plate-shaped material
Kind.
On the other hand, the present invention also provides a kind of electrical performance test methods of insulating materials, and the method is using above-mentioned
The electrical performance test device of the insulating materials of offer is realized, comprising the following steps:
S1: second gas chamber is vacuumized, and is filled with the insulating gas for testing required air pressure；
S2: test specimen is fixed in detection station；
S3: first gas chamber is vacuumized, and is filled with the insulating gas for testing required air pressure；
S4: electrical performance test operation is carried out；
S5: test is completed, and carries out return-air operation to first gas chamber, is then returned to S2 and is carried out next test specimen examination
It tests, until total Test sampling test is completed.
Optionally, the insulating gas can be one of SF6, N2 gas.It can certainly be that other are common
Insulating gas.
After the completion of return-air operation is finger to finger test, the insulating gas in first gas chamber is extracted out.Specifically, when exhausted
When edge gas is the toxic gases such as SF6, the first gas chamber need to be vacuumized, sky is then put into the first gas chamber by air inflation nozzle
Gas.When insulating gas is the non-toxic gas such as N2, the first gas chamber can be vacuumized, a part of gas can also be only pulled out to drop
Low internal and external pressure difference, in order to easily operate.
By adopting the above technical scheme, a kind of electrical performance test device and method of insulating materials of the present invention has
It is following the utility model has the advantages that
1. test tool cylinder is passed through basin by a kind of electrical performance test device and method of insulating materials of the present invention
Formula insulator is divided into the first tooling cylinder and the second tooling cylinder, only needs to re-start the first tooling cylinder pumping when replacing test specimen very
Empty, charge operation greatly improves the speed of test inflation every time, return-air, shortens the test period, improve working efficiency, reduce examination
Test cost.
2. the electrical performance test device and method of a kind of insulating materials of the present invention, by outside the first tooling cylinder
Wall be arranged observation window, can be more convenient intuitively before on-test observe validation test sample placement position whether correctly with
And test specimen state and experimental phenomena during real-time observation experiment.
3. a kind of electrical performance test device and method of insulating materials of the present invention is connected by power spring and is shielded
Electrode and conductive joint element for bar are covered, conductive connection had not only been able to achieve, has shielded the effect of electric field, but also can be reduced the influence of manufacturing tolerance.
4. a kind of electrical performance test device and method of insulating materials of the present invention, upper flat plate motor and/or under
Plate electrode is attached fixation by being flexibly connected, and realizes interelectrode apart from adjustable, is suitable for the test sample of different length
Product.
Detailed description of the invention
It, below will be to required in embodiment or description of the prior art in order to illustrate more clearly of technical solution of the present invention
The attached drawing used is briefly described.It should be evident that drawings in the following description are only some embodiments of the invention, it is right
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Its attached drawing.
A kind of Fig. 1 stereoscopic schematic diagram of the electrical performance test device of insulating materials of the present invention；
A kind of Fig. 2 front view of the electrical performance test device of insulating materials of the present invention；
Fig. 3 is the lower half portion of A-A cross-sectional view in Fig. 2.
In figure: 1- detection unit, 2- transition element, 3- detect voltage and introduce unit, 4- connection structure, the first tooling of 11-
Cylinder, 12- detection station, 21- the second tooling cylinder, 22- conduction rod connecting device, 31- gas conduit, 32- conducting rod, 33- switching
Plate, 41- conductive structure, 42- insulation and sealing structure, 111- door opening, 112- observation window, 113- door-plate, 114- first through hole, 121-
First electrode, 122- second electrode, 123- first electrode pedestal, 124- second electrode pedestal, the second through-hole of 211-, 212- air pressure
Table mounting hole, 221- conduction joint element for bar, 222- bucking electrode, 223- bucking electrode connecting plate, 224- power spring.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art without making creative work it is obtained it is all its
His embodiment, shall fall within the protection scope of the present invention.
It should be noted that description and claims of this specification and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to the embodiment of the present invention described herein can in addition to illustrating herein or
Sequence other than those of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that cover
Covering non-exclusive includes to be not necessarily limited to for example, containing the process, method of a series of steps or units, device, product or equipment
Step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, product
Or other step or units that equipment is intrinsic.
Embodiment 1
It is mostly open type to the electrical performance test of insulating materials in routine techniques, but it is not material that measurement, which obtains result,
The breakdown voltage of ontology.And in the prior art using the experimental rig of closed gas insulation, since entire closed air chamber is complete
Connection, volume is larger, although more accurately test result can be obtained, every time test front and back require to be inflated,
Return-air operation, takes a long time, test efficiency is lower.The present embodiment provides a kind of electrical performance test devices of insulating materials can
Accurate test result is obtained, while can also improve the efficiency of test, reduces experimentation cost, device includes detection unit 1, transition
Unit 2 and detection voltage introduce unit 3；Detection unit 1 includes the first tooling cylinder 11 and detection station 12, and detection station 12 is arranged
In the first tooling cylinder 11, detection station 12 is for fixing test specimen；Transition element 2 passes through connection structure 4 and detection unit 1
It is fixedly connected, transition element 2 includes the second tooling cylinder 21 and conductive rod connecting device 22, and the conductive setting of rod connecting device 22 is the
In two tooling cylinders 21；Detection voltage introduces unit 3 and connect with transition element 2, introduces detection unit 1 for will test voltage；Inspection
It surveys unit 1 and forms the first gas chamber, transition element 2 and detection voltage introduce unit 3 and forms the second gas chamber, and the first gas chamber and the
It is two independent sealed air chamber that the seal isolation of structure 4 is connected between two gas chambers.
In some embodiments, first electrode 121 and second electrode 122, first electrode are set in the first tooling cylinder 11
121 are fixedly connected with first electrode pedestal 123, and first electrode pedestal 123 is bolted on the bottom plate of the first tooling cylinder 11
On, second electrode 122 is connected through a screw thread with second electrode pedestal 124, and second electrode pedestal 124 is bolted on connection
In structure 4.
In some embodiments, it is also possible to be that first electrode 121 is connected through a screw thread with first electrode pedestal 123, first
Electrodes base 123 is bolted on the bottom plate of the first tooling cylinder 11, and second electrode 122 and second electrode pedestal 124 are solid
Fixed connection, second electrode pedestal 124 are bolted in connection structure 4.
In some embodiments, it is also possible to be that first electrode 121 is fixedly connected with first electrode pedestal 123, first electrode
Pedestal 123 is bolted on 11 bottom plate of the first tooling cylinder, and second electrode 122 and the sliding of second electrode pedestal 124 fasten
Connection, second electrode pedestal 124 are bolted in connection structure 4.
In some embodiments, it is also possible to be that first electrode 121 is fastenedly connected with the sliding of first electrode pedestal 123, first
Electrodes base 123 is bolted on 11 bottom plate of the first tooling cylinder, and second electrode 122 is consolidated with second electrode pedestal 124
Fixed connection, second electrode pedestal 124 are bolted in connection structure 4.
It of courses, according to different electrode structures, can also be attached by other suitable connection types, herein no longer
It enumerates.
In some embodiments, conducting rod 32 and conductive joint element for bar in the second tooling cylinder 21, in gas casing 31
221 are bolted, and conductive joint element for bar 221 is electrically connected with bucking electrode 222, and conductive joint element for bar 221 is the electricity of falling cup type
Pole, bucking electrode 222 are cup type electrode, wherein the opening of conductive joint element for bar 221 is smaller, bucking electrode 222 is cup type electrode
It is open larger, conductive joint element for bar 221 protrudes into inside bucking electrode 222.In bucking electrode 222 and conductive joint element for bar 221
Power spring 224 is arranged in cup type space interior, guarantees electrical connection between the two by power spring 224, bucking electrode 222 is logical
It crosses bucking electrode connecting plate 223 to connect with connection structure 4, and is bolted.
In some embodiments, it is equipped with the second through-hole 211 in the side wall of the second tooling cylinder 21, for installing air inflation nozzle, together
When, the second tooling cylinder 21 is additionally provided with the barometric air gauge mounting hole 212 of installation, and air gauge is for detecting the indoor gas of the second gas
The air-tightness of transition element when pressure value and long-term placement.
In some embodiments, the side wall of the first tooling cylinder 11 is equipped with door opening 111, for disposing test specimen, in door opening
Door-plate 113 is set on 111, and is bolted on the first tooling cylinder 11, door-plate 113 is equipped with first through hole 114, is used for
Air inflation nozzle is installed, the side wall of the first tooling cylinder 11 is additionally provided with observation window 112, metal framework is arranged on observation window 112, and by having
Machine glass is sealed, convenient for observation test situation.
In some embodiments, connection structure 4 is provided with the conductive structure 41 with electric action and has insulating effect
Insulation and sealing structure 42, conductive rod connecting device 22 is electrically connected by conductive structure 41 with detection station 12, the first tooling cylinder
11 are tightly connected by insulation and sealing structure 42 and the second tooling cylinder 21, so that it is guaranteed that having between the first gas chamber and the second gas chamber
Good leakproofness.
In some embodiments, connection structure 4 is disc insulator, and the middle part of disc insulator is conductive structure 41, is led
The surrounding of electric structure 41 is insulation and sealing structure 42.
Experimental rig provided in this embodiment is connect with external electrical source point by conducting rod 32 and introduces voltage, then successively
It is conveyed by conductive joint element for bar 221, power spring 224, bucking electrode 222, bucking electrode connecting plate 223 and conductive structure 41
To detection unit 1, it will test voltage finally by second electrode pedestal 124 and be transported to second electrode 122, to realize to first
The detection of test specimen between electrode 121 and second electrode 122.
A kind of electrical performance test device of the insulating materials provided through this embodiment can be good at solving existing skill
The defect of art can obtain this bulk breakdown voltage of insulating materials, and can improve work effect again by reducing test space
Rate.
A kind of electrical performance test device of insulating materials through this embodiment has the following beneficial effects:
Test tool cylinder is divided by a kind of electrical performance test device of insulating materials of the invention by disc insulator
First tooling cylinder and the second tooling cylinder, replace test specimen when only need to re-start the first tooling cylinder vacuumize, charge operation,
The speed for greatly improving test inflation every time, return-air, shortens the test period, improves working efficiency, reduce experimentation cost.
A kind of electrical performance test device of insulating materials of the invention is observed by being arranged in the first tooling drum outer wall
Whether window, the placement position that can be more convenient intuitively to observe validation test sample before on-test correctly and are in real time observed
Test specimen state and experimental phenomena during test.
A kind of electrical performance test device of insulating materials of the invention connects bucking electrode and conduction by power spring
Joint element for bar had not only been able to achieve conductive connection, has shielded the effect of electric field, but also can be reduced the influence of manufacturing tolerance.
A kind of electrical performance test device of insulating materials of the invention, upper flat plate electrode and/or lower plate electrode pass through
Movable connection method is attached fixation, realizes interelectrode apart from adjustable, is suitable for the test specimen of different length.
Embodiment 2 is the alternative embodiment of embodiment 1
Optionally, observation window 112 is multiple, and specifically, observation window 112 is arranged two, is arranged at an angle
The outer wall of first tooling cylinder 11, convenient for observing experimental phenomena from different directions.Its technical effect and embodiment 1 basic one for obtaining
It causes, does not just repeat one by one here.
Embodiment 3
The present embodiment on the basis of embodiment 1, proposes a kind of electrical performance test method of insulating materials, specifically
Operating process is as follows:
S1: the air inflation nozzle that the second tooling cylinder 21 is first passed through before experiment vacuumizes the second gas chamber of experimental rig, is filled with examination
Test the insulating gas of required air pressure；
S2: and then remove the bolt of the door-plate 113 on the first tooling cylinder 11, door-plate 113 is opened, test specimen is passed through
Door opening 111 at door-plate 113 is placed at the center of 121 upper surface of first electrode, then adjusts first electrode 121, reduces first
The distance between electrode and second electrode 122, until test specimen is clamped and the by first electrode 121 and second electrode 122
Until one electrode 121 can not rotate；
S3: door-plate 113 and fixing bolt are covered, first tooling cylinder 11 is vacuumized by the air inflation nozzle on door-plate 113, is filled
Enter the insulating gas of air pressure needed for testing:
S4: experimental rig is run to test site by fork truck and is tested；
S5: primary test finishes, and carries out return-air operation to the first tooling cylinder 11, opens door-plate 113, replaces test specimen,
Then the first tooling cylinder 11 is re-started vacuumize, charge operation, improve test efficiency.
Method provided in this embodiment can measure to obtain this bulk breakdown voltage of insulating materials, greatly improve each test
It inflates, the speed of return-air, shortens the test period, improve working efficiency, reduce experimentation cost, it can also during the test in real time
Observe the state and experimental phenomena of test product in closed container.
The foregoing is merely a prefered embodiment of the invention, is not intended to limit the invention, to those skilled in the art,
Obviously invention is not limited to the details of the above exemplary embodiments, and in the feelings without departing substantially from spirit or essential attributes of the invention
Under condition, the present invention can be realized in other specific forms.Therefore, in all respects, the embodiments should be taken as
It is exemplary, and be non-limiting, the scope of the invention being indicated by the appended claims rather than by the foregoing description, therefore purport
It is including all changes that fall within the meaning and scope of the equivalent elements of the claims in the present invention.Right should not be wanted
Any appended drawing reference in asking is construed as limiting the claims involved.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (10)
1. a kind of electrical performance test device of insulating materials, which is characterized in that including detection unit (1), transition element (2) and
It detects voltage and introduces unit (3)；
The detection unit (1) includes the first tooling cylinder (11) and detection station (12), and the detection station (12) is arranged in institute
It states in the first tooling cylinder (11)；
The transition element (2) is fixedly connected by connection structure (4) with the detection unit (1), transition element (2) packet
The second tooling cylinder (21) and conductive rod connecting device (22) are included, the conduction rod connecting device (22) is arranged in second tooling
In cylinder (21)；
The detection voltage introduces unit (3) and connect with the transition element (2), introduces detection unit for will test voltage
(1)；
The detection unit (1) forms the first gas chamber, and the transition element (2) and the detection voltage introduce unit (3) and formed
Second gas chamber, and it is only for two by the connection structure (4) seal isolation between first gas chamber and second gas chamber
Vertical sealed air chamber.
2. a kind of electrical performance test device of insulating materials according to claim 1, which is characterized in that the detection work
Position (12) includes first electrode (121), second electrode (122), first electrode pedestal (123) and second electrode pedestal (124)；Institute
The one end for stating first electrode pedestal (123) is fixed on the bottom plate of the first tooling cylinder (11), the second electrode pedestal
(124) one end is fixed on connection structure (4), and the first electrode (121) is connected to the first electrode pedestal (123)
The other end, the second electrode (122) are connected to the other end of the second electrode pedestal (124), and the first electrode
(121) it is oppositely arranged with the second electrode (122).
3. a kind of electrical performance test device of insulating materials according to claim 1, which is characterized in that first work
Fitted tube (11) includes door opening (111) and observation window (112), door-plate (113) is arranged on the door opening (111), the door-plate (113)
The upper first through hole (114) being arranged for installing air inflation nozzle.
4. a kind of electrical performance test device of insulating materials according to claim 1, which is characterized in that second work
Fitted tube (21) includes the second through-hole (211) and air gauge mounting hole (212), and second through-hole (211) is used to install air inflation nozzle,
The air gauge mounting hole (212) is for installing air gauge.
5. a kind of electrical performance test device of insulating materials according to claim 1, which is characterized in that the conducting rod
Attachment device (22) includes sequentially connected conductive joint element for bar (221), bucking electrode (222) and bucking electrode connecting plate
(223), the bucking electrode connecting plate (223) is fixed on the connection structure (4).
6. a kind of electrical performance test device of insulating materials according to claim 5, which is characterized in that the shielding electricity
Pole (222) is cup type electrode, and the conduction joint element for bar (221) is the electrode of falling cup type, and the electrode of falling cup type protrudes into the cup
In type electrode, and the bucking electrode (222) and conductive joint element for bar (221) are connected by power spring (224).
7. a kind of electrical performance test device of insulating materials according to claim 5, which is characterized in that the detection electricity
It includes gas casing (31) and conducting rod (32) that pressure, which introduces unit (3), and conducting rod (32) setting is interior in gas casing (31),
And one end of the conducting rod (32) is fixed on the conductive joint element for bar (221).
8. a kind of electrical performance test device of insulating materials according to claim 1, which is characterized in that the connection knot
Structure (4) includes conductive structure (41) and insulation and sealing structure (42), and the conduction rod connecting device (22) passes through conductive structure
(41) be electrically connected with the detection station (12), the first tooling cylinder (11) by the insulation and sealing structure (42) with it is described
Second tooling cylinder (21) is tightly connected.
9. a kind of electrical performance test device of insulating materials according to claim 1, which is characterized in that the connection knot
Structure (4) is disc insulator.
10. a kind of electrical performance test method of insulating materials, which is characterized in that the method is appointed using in claim 1-9
The electrical performance test device of insulating materials described in meaning one is realized, comprising the following steps:
S1: second gas chamber is vacuumized, and is filled with the insulating gas for testing required air pressure；
S2: test specimen is fixed in detection station；
S3: first gas chamber is vacuumized, and is filled with the insulating gas for testing required air pressure；
S4: electrical performance test operation is carried out；
S5: test is completed, and carries out return-air operation to first gas chamber, is then returned to S2 and is carried out next test specimen test,
Until total Test sampling test is completed.
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| CN201910155014.3A CN109799433B (en) | 2019-03-01 | 2019-03-01 | Device and method for testing electrical performance of insulating material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910155014.3A CN109799433B (en) | 2019-03-01 | 2019-03-01 | Device and method for testing electrical performance of insulating material |
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| CN109799433A true CN109799433A (en) | 2019-05-24 |
| CN109799433B CN109799433B (en) | 2021-01-15 |
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| CN108802585A (en) * | 2018-08-23 | 2018-11-13 | 上海腾炎新材料有限公司 | A kind of test tool for insulating of electric measurement of high pressure part lightning impulse test |
| CN111190078A (en) * | 2019-12-20 | 2020-05-22 | 河南平高电气股份有限公司 | Detection tool and detection equipment for insulating pull rod |
| CN113009189A (en) * | 2019-12-19 | 2021-06-22 | 河南平芝高压开关有限公司 | Withstand voltage test device and conductive connection assembly |
| CN113009190A (en) * | 2019-12-19 | 2021-06-22 | 河南平芝高压开关有限公司 | GIS is with experimental frock of single insulating pull rod and test equipment |
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| CN108802585A (en) * | 2018-08-23 | 2018-11-13 | 上海腾炎新材料有限公司 | A kind of test tool for insulating of electric measurement of high pressure part lightning impulse test |
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| CN111190078A (en) * | 2019-12-20 | 2020-05-22 | 河南平高电气股份有限公司 | Detection tool and detection equipment for insulating pull rod |
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