CN109490734A - A kind of high-pressure insulator quick performance verifying attachment - Google Patents
A kind of high-pressure insulator quick performance verifying attachment Download PDFInfo
- Publication number
- CN109490734A CN109490734A CN201811564956.9A CN201811564956A CN109490734A CN 109490734 A CN109490734 A CN 109490734A CN 201811564956 A CN201811564956 A CN 201811564956A CN 109490734 A CN109490734 A CN 109490734A
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- Prior art keywords
- charging compartment
- rack
- charging
- compartment
- sleeve
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Classifications
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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
- G01R31/18—Subjecting similar articles in turn to test, e.g. go/no-go tests in mass production
-
- 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
Abstract
A kind of high-pressure insulator quick performance verifying attachment disclosed by the invention, comprising: rack；Pass through rack-mounted first charging compartment of the first slewing equipment；The second charging compartment being mounted on the second slewing equipment, the second slewing equipment are slidably installed on the rack；One rack-mounted second charging compartment driving mechanism, second charging compartment driving mechanism drives the second slewing equipment to carry out linear reciprocating motion on the rack, and then it drives the second charging compartment to carry out linear reciprocating motion in the rack, realize and the splicing of the first charging compartment and separates.The bus casing assembly that the present invention is made of by the way that multiple groups are arranged in two charging compartments insulating sleeve, casing conductive sleeve and busbar, the performances acceptance work that can carry out multiple groups bus connecting device simultaneously can carry out the inspection of different components by inserting the gas high pressures such as voltage adapter and silicone rubber sleeve component on bus casing assembly simultaneously.It improves work efficiency.
Description
Technical field
The present invention relates to switchgear inspection technology field, in particular to a kind of high-pressure insulator is examined with quick performance and is filled
It sets.
Background technique
Bus connection uses silicone rubber sleeve to ensure the pass of insulation performance as after being electrically connected between gas insulation switch cabinet cabinet
Key high pressure component, reliability directly affect the overall performance of switchgear.Silicone rubber sleeve generally by silicon rubber be poured and
At interlude pours semiconductor varnish, and realizes reliable ground by ground spring.Product inner-wall spraying semiconductor paint layer, electrification
Field shielding action.According to the difference of switchgear voltage, electric current, there are many products of dimensions for silicone rubber sleeve.
Voltage adapter carries out the device of flash test as substitution high-tension cable, can according to the type of cable sleeve
It is divided into inner cone voltage adapter and outer cone voltage adapter.Outer cone voltage adapter includes outer poppet adapter, screw and socket,
Outer poppet adapter is integrally poured by passing through silicon rubber after contact tube and connector molding assembly；Socket is pacified by the way that screw is fixed
Loaded on outer cone cable sleeve, outer poppet adapter is connected on outer cone cable sleeve by socket.Inner cone voltage adapter includes
Interior poppet adapter, contact spring, mounting flange plate, interior poppet adapter is by passing through silicon rubber after contact tube and connector molding assembly
Integrally it is poured；It is installed on inner cone cable sleeve by the spiral shell being fixed on ring flange.According to switchgear voltage, electric current
Difference, there are many products of dimensions for interior outer cone voltage adapter.
Existing insulating part device for detecting performance can only carry out single product performance test.Test the bus silicon rubber of different size
Gum cover pipe needs to dismantle, replace the inner cone casing of corresponding specification, the cumbersome work of the series such as charge and discharge SF6 gas again.Test
40.5kV voltage class bus silicone rubber sleeve stands 30 minutes after the installation is completed, and contacting surface gas emptying waiting is tightly combined,
Test can be carried out, working efficiency is extremely low.
Insulating part device for detecting performance cannot carry out the performances acceptance of bus silicone rubber sleeve and voltage adaptation simultaneously, test
The high-voltage adapter of inside and outside cone needs to dismantle, replace the inside and outside taper bushing of corresponding specification, heavy workload.
Splicing between the device of existing test bus silicone rubber sleeve performance needs manpower to complete, right between inner cone casing
Moderate is poor, and silicone rubber sleeve installation site is incorrect, causes product in test process to puncture along surface creepage, causes the damage of product
It is bad, it is extremely uneconomical.
Summary of the invention
Technical problem to be solved by the present invention lies in ask for above-mentioned technology present in insulating part device for detecting performance
It inscribes and provides that a kind of installation is reliable, and workload is small, good economy performance, and versatility is good, the high-voltage isulation that can be quickly tested for the property
Part quick performance verifying attachment.
The technical problems to be solved by the invention can be achieved through the following technical solutions:
A kind of high-pressure insulator quick performance verifying attachment, comprising:
One rack；
One the first charging compartment being mounted on the rack by the first slewing equipment；
One is mounted on the second charging compartment on the second slewing equipment, and second slewing equipment is slidably mounted on the machine
On frame；
One the second charging compartment driving mechanism being mounted on the rack, the second charging compartment driving mechanism driving
Second slewing equipment carries out linear reciprocating motion in the rack, and then drives second charging compartment in the machine
It carries out linear reciprocating motion on frame, realize and the splicing of first charging compartment and separates.
In a preferred embodiment of the invention, first charging compartment and the second charging compartment structure are all the same,
On the top plate of first charging compartment and a Self-sealing valve is installed on the top plate of the second charging compartment, by it is respective from
Valve is sealed into first charging compartment and is filled with insulating gas in the second charging compartment；In first charging compartment and second
The first end plate that charging compartment is oppositely arranged and the different hole of specification is offered on the second end plate, first charging compartment and
The hole of same specification on second charging compartment is coaxial；In the first end plate of first charging compartment and the second charging compartment
The position that each hole is corresponded on surface is mounted on the first insulating sleeve, in first charging compartment and the second charging compartment
The position that each hole is corresponded on the inner surface of second end plate is equipped with the second insulating sleeve；In the end of every one first insulating sleeve
First sleeve conductive sleeve is installed, the second casing conductive sleeve is installed in the end of every one second insulating sleeve；Each first set
Pipe conductive sleeve is realized by busbar with corresponding second casing conductive sleeve and is electrically connected；
When test, the voltage adapter of different size is passed through to the hole of the same specification in the first end plate of the first charging compartment
It is inserted into the first insulating sleeve of corresponding specification afterwards, the silicone rubber sleeve of different size is then passed through into the first charging compartment
It is inserted into behind the hole of same specification on second end plate in the second insulating sleeve of corresponding specification, then the connector of corresponding specification is pacified
It is placed on the silicone rubber sleeve of corresponding specification；The first charging compartment and the are adjusted by the first swing mechanism and the second swing mechanism
The position of two charging compartments, the second charging compartment driving mechanism of starting drive second charging compartment and first inflation every
Voltage adapter and silicone rubber sleeve Insulation Test are carried out after the splicing of room；After Insulation Test, start the second charging compartment
Driving mechanism drives second charging compartment to separate with first charging compartment, removes voltage adapter and silicone rubber sleeve
And connector, it changes new voltage adapter and silicone rubber sleeve and connector and carries out Insulation Test next time.
In a preferred embodiment of the invention, the busbar is tubular busbar, in second charging compartment
It is vented with the splicing of first charging compartment.
In a preferred embodiment of the invention, at the top plate both ends of first charging compartment and the second charging compartment
It is respectively arranged with a positioning plate, to guarantee the accuracy of the first charging compartment and the second charging compartment in splicing.
In a preferred embodiment of the invention, four pieces are fixedly installed at the frame top both ends and middle position
Support plate, parallel support has two motion guide rails in four pieces of support plates, and second slewing equipment is sliding by plain bearing housing
It is dynamic to be supported on two motion guide rails.
In a preferred embodiment of the invention, one is equipped with by the plain bearing housing on two motion guide rails
To sliding panel, second slewing equipment is mounted on pair of sliding plate.
In a preferred embodiment of the invention, the second charging compartment driving mechanism includes being mounted on the rack
On cylinder, the cylinder push-rod in the cylinder connect by a connecting rod with a sliding panel.
In a preferred embodiment of the invention, first slewing equipment and the second slewing equipment include a bottom plate
The bottom center of single-revolution support plate, the revolving support plate is provided with single-revolution axis, is offered at the center of the bottom plate
Single-revolution hole, the rotating shaft are rotatably supported in the rotary hole by bearing；The revolving support plate with it is described
Ball is provided between bottom plate.
In a preferred embodiment of the invention, the bottom of the rack is provided with pulley.
Basic principle of the invention is 2 charging compartments of design, opens up different rulers on the two end plates of each charging compartment
Very little hole can be led with the insulating sleeve of multiple and different specifications and casing conductive sleeve, casing on the two end plates of each charging compartment
Electrical connection is realized by tubular busbar between electricity set, is filled with SF6 gas inside two charging compartments, and two inflations every
Self-sealing valve is installed on the top plate of room, monitors gaseous state in two charging compartments.In addition at the top plate both ends of each charging compartment
Welded limiting plate guarantees that stitching position is accurate and reliable between two charging compartments.2 charging compartments are installed in a revolution dress
Set, slewing equipment can 360 degree rotation, realize different size voltage adapter and silicone rubber sleeve switching.One of them is returned
Rotary device is slidably matched with the motion guide rail in rack, by a charging compartment driving mechanism one charging compartment is carried out
The splicing and separation of 2 charging compartments are realized in straight reciprocating motion.Insulating sleeve, casing conductive sleeve and busbar are hollow knot
Structure, convenient for releasing compressed gas in silicone rubber sleeve splicing.
Due to using technical solution as above, the present invention in two charging compartments by being arranged multiple groups by insulation sleeve
The bus casing assembly that pipe, casing conductive sleeve and busbar are constituted, can carry out the performances acceptance work of multiple groups bus connecting device simultaneously
Make, can be carried out simultaneously not by inserting the gas high pressures such as voltage adapter and silicone rubber sleeve component on bus casing assembly
With the inspection of component.It improves work efficiency.Device is checked and accepted compared to conventional high-pressure component insulation performance, tests different rule
When lattice size component, checks and accepts device and be not necessarily to the corresponding inner cone casing of dismounting and change, it is big to greatly reduce work.It no longer needs to filling
Air bound room charge and discharge SF6 gas again, saves SF6 gas and obtains usage amount, while avoiding injury of the SF6 to reviewer.It examines
Process avoids human factor from causing the punch through damage of product, reduces economic loss.Carry out exclusion circle of 40.5kV Product Acceptance Review
Influence of the existing bubble to insulation performance between face, is tested after need to standing 30 minutes, excludes existing bubble pair between interface
The influence of insulation performance.Using apparatus of the present invention, have automatic ventilating function, without waiting for the time, insulation examination can be carried out immediately
It tests, has greatly reduced round of visits, improve production efficiency.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of high-pressure insulator quick performance verifying attachment of the present invention.
Fig. 2 is rack and the driving of the second charging compartment in a kind of high-pressure insulator quick performance verifying attachment of the present invention
The structure front view of mechanism.
Fig. 3 is rack and the driving of the second charging compartment in a kind of high-pressure insulator quick performance verifying attachment of the present invention
The structural perspective of mechanism.
Fig. 4 is that the first charging compartment and second in a kind of high-pressure insulator quick performance verifying attachment of the invention fills
The structure chart of air bound room.
Fig. 5 is the first slewing equipment and second time in a kind of high-pressure insulator quick performance verifying attachment of the invention
The structural schematic diagram of rotary device.
Specific embodiment
The present invention is further described below in conjunction with the drawings and specific embodiments.
A kind of high-pressure insulator quick performance verifying attachment of the present invention can pass through such as flowering structure referring to Fig. 1 to Fig. 3
It realizes, specific structure includes:
One rack 1, rack 1 are made of metal material, and are frame structure, the bottom of rack 1 is provided with pulley 13, with
It is moved easily.
Four pieces of support plates 10a, 10b, 10c, 10d are fixedly installed at 1 top both ends of rack and middle position, in four pieces of branch
The upper parallel support of fagging 10a, 10b, 10c, 10d has two motion guide rails 6, passes through four sliding axles on two motion guide rails 6
It holds seat 9 and is slidably fitted with two pieces of sliding panels 8a, 8b, one piece of sliding panel 8a is between two pieces of support plates 10a, 10b, another piece of cunning
Movable plate 8b is between support plate 10b, 10c.
Second charging compartment driving mechanism includes the cylinder 11 being mounted in rack 1, the cylinder push-rod 12 in cylinder 11
End is connect with the lower end of a connecting rod 25, and the lower end of connecting rod 25 is fixedly connected with sliding panel 8b.Cylinder 11 is equipped with gas-charging connection, leads to
Compressed air can be imported by crossing connector.
In conjunction with referring to fig. 4, the first slewing equipment 5a and the second slewing equipment 5b structure are identical, include a bottom plate 23a,
23b and single-revolution support plate 22a, 22b, bottom plate 23a, 23b are circular slab, offer one at the center of bottom plate 23a, 23b
Rotary hole 23aa, 23ba are equipped with bearing 24a, a 24b inside rotary hole 23aa, 23ba.In revolving support plate 22a, 22b
Bottom center is provided with single-revolution axis 22aa, 22ba, and rotating shaft 22aa, 22ba are inserted into bearing 24a, 24b, so that revolution branch
Fagging 22a, 22b are rotatably supported on bottom plate 23a, 23b, realize the revolution of revolving support plate 22a, 22b.
In addition circle groove 23ab, a 23bb is respectively offered on the top surface of bottom plate 23a, 23b, in groove 23ab, 23bb
Several ball 21a, 21b are placed with, several ball 21a, 21b carry out rolling support to revolving support plate 22a, 22b, to ensure back
Turn the flexibility of support plate 22a, 22b.
Bottom plate 23a in first slewing equipment 5a is fixed by screws in support plate 10c, 10d, the first inflation format 2a
It is mounted on the revolving support plate 22a of the first slewing equipment 5a by screw.Bottom plate 23b in second slewing equipment 5b passes through spiral shell
Nail is fixed on two pieces of sliding panels 8a, 8b, and the second charging compartment 2b is mounted on the revolution branch of the second slewing equipment 5b by screw
On fagging 22b, such first charging compartment 2a and the second charging compartment 2b can be turned round, and realize different size voltage adapter
1 and silicone rubber sleeve 3 switching.The movement of the acting of cylinder 11 simultaneously makes cylinder rod 12 move along a straight line back and forth, is fixed on the second revolution
The second charging compartment 2b on the revolving support plate 22b of device 5b carries out linear reciprocation movement therewith, realize with the first inflation every
The splicing of room 2a with separate.
Referring to Fig. 3, the first charging compartment 2a and the second charging compartment 2b structure are all the same, include a charging compartment shell
15a, 15b and top plate 26a, the 26b being fixed on charging compartment shell 15a, 15b.One is respectively equipped on top plate 26a, 26b
Self-sealing valve 14a, 14b are filled with into the first charging compartment 2a and in the second charging compartment 2b by respective Self-sealing valve 14a, 14b
Insulating gas.A positioning plate is respectively arranged at the both ends top plate 26a, 26b of the first charging compartment 2a and the second charging compartment 2b
16a, 16b, to guarantee the accuracy of the first charging compartment 26a and the second charging compartment 2b in splicing.
In first end plate 27a, 27b and the second end plate that the first charging compartment 2a and the second charging compartment 2b are oppositely arranged
Hole 27aa, 27ba, 28aa, the 28ba different there are three types of specification, the inflation of the first charging compartment 2a and second are opened up on 28a, 28b
Hole 27aa, 27ba, 28aa, 28ba of same specification on compartment 2b are coaxial.In the first charging compartment 2a and the second charging compartment 2b
First end plate 27a, 27b inner surface on correspond to each hole 27aa, 27ba position be mounted on the first insulating sleeve 18a,
18b corresponds to each hole on the inner surface of second end plate 28a, 28b of the first charging compartment 2a and the second charging compartment 2b
The position of 28aa, 28ba are equipped with second insulating sleeve 29a, 29b；It is installed in the end of every one first insulating sleeve 18a, 18b
There are first sleeve conductive sleeve 17a, 17b, the second casing conductive sleeve is installed in the end of every one second insulating sleeve 29a, 29b
30a,30b；It is opened up on each first sleeve conductive sleeve 17a, 17b and every one second casing conductive sleeve 30a, 30b inner hole surface
There are two seal grooves, O-ring seals 19a, 19b, the both ends difference of tubular busbar 20a, 20b are mounted in each seal groove
It is inserted into the inner hole of corresponding first sleeve conductive sleeve 17a, 17b and the inner hole of corresponding second casing conductive sleeve 30a, 30b
In, realize electrical communication.First sleeve conductive sleeve 17a, 17b and second casing conductive sleeve 30a, 30b and tubular busbar 20a,
It is sealed between 20b each by O-ring seals 19a, 19b, to realize the first charging compartment 2a and the second charging compartment 2b
Internal gas and extraneous sealing.
When test, by same rule of the voltage adapter 1 of different size on the first end plate 2aa of the first charging compartment 2a
It is inserted into after the hole 27aa of lattice in the first insulating sleeve 18a of corresponding specification, then passes through the silicone rubber sleeve of different size 3
The second insulating sleeve of corresponding specification is inserted into after the hole 27ba of same specification on the second end plate 2ab of first charging compartment 2a
In 29a, then the connector 4 of corresponding specification is placed on the silicone rubber sleeve 3 of corresponding specification；First charging compartment 2a and second
After the completion of charging compartment 2b splicing, silicone rubber sleeve 3 and connector 4 are on the first end plate 2ba of the second charging compartment 2b
It is inserted into after the hole 27aa of same specification in the first insulating sleeve 18b of corresponding specification, it is complete by applying voltage to voltage adapter 1
At the inspection of insulating part.
Start cylinder 11, the splicing of the second charging compartment 2b and the first charging compartment 2a can be realized.Second charging compartment
Tubular busbar 20b in 2b can realize silicone rubber sleeve quickly spliced automatic ventilating function.Second charging compartment 2b is spelled
In termination process, the gas that generation is compressed between silicone rubber sleeve 3 and insulating sleeve 18 can be discharged by tubular type busbar 20b.Make
Insulation performance verifying can be carried out for a long time by crossing without waiting when must detect the insulating part of voltage levels.
After Insulation Test, starts cylinder 11, the second charging compartment 2b can be made to separate with the first charging compartment 2a, taken
Lower voltage adapter 1 and silicone rubber sleeve 3 and connector 4 change new voltage adapter 1 and silicone rubber sleeve 3 and connector 4
Carry out Insulation Test next time.
The foregoing describe the basic principles, principal features and advantages of the present invention.It should be understood by those skilled in the art that this
Invention is not restricted to the described embodiments, and the above embodiments and description only illustrate the principle of the present invention, not
Various changes and improvements may be made to the invention under the premise of disengaging spirit and scope of the invention, these changes and improvements, which are both fallen within, to be wanted
It asks in the scope of the invention of protection.The present invention claims protection scope defined by appended claims and its equivalent.
Claims (9)
1. a kind of high-pressure insulator quick performance verifying attachment characterized by comprising
One rack；
One the first charging compartment being mounted on the rack by the first slewing equipment；
One is mounted on the second charging compartment on the second slewing equipment, and second slewing equipment is slidably mounted on the rack
On；
One the second charging compartment driving mechanism being mounted on the rack, described in the second charging compartment driving mechanism driving
Second slewing equipment carries out linear reciprocating motion in the rack, and then drives second charging compartment in the rack
Linear reciprocating motion is carried out, realize and the splicing of first charging compartment and is separated.
2. a kind of high-pressure insulator quick performance verifying attachment as described in claim 1, which is characterized in that described first fills
Air bound room and the second charging compartment structure are all the same, on the top plate of first charging compartment and the top of the second charging compartment
One Self-sealing valve is installed on plate, is filled with absolutely into first charging compartment and in the second charging compartment by respective Self-sealing valve
Edge gas；It is offered in the first end plate and the second end plate that first charging compartment and the second charging compartment are oppositely arranged
The hole of the different hole of specification, first charging compartment and the same specification on the second charging compartment is coaxial；In first inflation
The position that each hole is corresponded on the inner surface of the first end plate of compartment and the second charging compartment is mounted on the first insulating sleeve,
The position that each hole is corresponded on the inner surface of second end plate of first charging compartment and the second charging compartment is equipped with second
Insulating sleeve；First sleeve conductive sleeve is installed in the end of every one first insulating sleeve, at the end of every one second insulating sleeve
End is equipped with the second casing conductive sleeve；Each first sleeve conductive sleeve realizes electricity by busbar with corresponding second casing conductive sleeve
Gas connection；
When test, inserted after the voltage adapter of different size to be passed through to the hole of the same specification in the first end plate of the first charging compartment
Enter into the first insulating sleeve of corresponding specification, the silicone rubber sleeve of different size is then passed through the second of the first charging compartment
It is inserted into behind the hole of same specification on end plate in the second insulating sleeve of corresponding specification, then the connector of corresponding specification is placed in
On the silicone rubber sleeve of corresponding specification；The first charging compartment and second is adjusted by the first swing mechanism and the second swing mechanism to fill
The position of air bound room, the second charging compartment driving mechanism of starting drive second charging compartment and first charging compartment
Voltage adapter and silicone rubber sleeve Insulation Test are carried out after splicing；After Insulation Test, starting the second charging compartment driving
Mechanism drives second charging compartment to separate with first charging compartment, removes voltage adapter and silicone rubber sleeve and company
Device is connect, new voltage adapter and silicone rubber sleeve and connector is changed and carries out Insulation Test next time.
3. a kind of high-pressure insulator quick performance verifying attachment as claimed in claim 2, which is characterized in that the busbar is
Tubular busbar, to be vented in splicing of second charging compartment with first charging compartment.
4. a kind of high-pressure insulator quick performance verifying attachment as described in claim 1, which is characterized in that described first
The top plate both ends of charging compartment and the second charging compartment are respectively arranged with a positioning plate, to guarantee that the first charging compartment and second fills
Accuracy of the air bound room in splicing.
5. a kind of high-pressure insulator quick performance verifying attachment as described in claim 1, which is characterized in that in the rack
Top both ends and middle position are fixedly installed with four pieces of support plates, and parallel support has two motion guide rails in four pieces of support plates,
Second slewing equipment is slidably supported on two motion guide rails by plain bearing housing.
6. a kind of high-pressure insulator quick performance verifying attachment as claimed in claim 5, which is characterized in that moved at two
Pair of sliding plate is equipped with by the plain bearing housing on guide rail, second slewing equipment is mounted on pair of sliding plate.
7. a kind of high-pressure insulator quick performance verifying attachment as claimed in claim 6, which is characterized in that described second fills
Air bound room driving mechanism includes the cylinder being mounted on the rack, the cylinder push-rod in the cylinder by a connecting rod with it is described
The connection of one sliding panel.
8. a kind of high-pressure insulator quick performance verifying attachment as described in claim 1, which is characterized in that described first time
Rotary device and the second slewing equipment include a bottom plate and single-revolution support plate, and the bottom center of the revolving support plate is provided with
Single-revolution axis offers single-revolution hole at the center of the bottom plate, and the rotating shaft is rotatably supported on described by bearing
In rotary hole；Ball is provided between the revolving support plate and the bottom plate.
9. a kind of high-pressure insulator quick performance verifying attachment as described in claim 1, which is characterized in that in the rack
Bottom be provided with pulley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811564956.9A CN109490734B (en) | 2018-12-20 | 2018-12-20 | High-speed performance testing device for high-voltage insulating part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811564956.9A CN109490734B (en) | 2018-12-20 | 2018-12-20 | High-speed performance testing device for high-voltage insulating part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109490734A true CN109490734A (en) | 2019-03-19 |
| CN109490734B CN109490734B (en) | 2020-10-23 |
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ID=65711124
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811564956.9A Active CN109490734B (en) | 2018-12-20 | 2018-12-20 | High-speed performance testing device for high-voltage insulating part |
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| Country | Link |
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| CN (1) | CN109490734B (en) |
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| CN113325283A (en) * | 2021-05-26 | 2021-08-31 | 许继集团有限公司 | Aerify cabinet device for insulation test |
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| Publication number | Publication date |
|---|---|
| CN109490734B (en) | 2020-10-23 |
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