CN107991585A - A kind of disc insulator Withstand test device - Google Patents
A kind of disc insulator Withstand test device Download PDFInfo
- Publication number
- CN107991585A CN107991585A CN201710987174.5A CN201710987174A CN107991585A CN 107991585 A CN107991585 A CN 107991585A CN 201710987174 A CN201710987174 A CN 201710987174A CN 107991585 A CN107991585 A CN 107991585A
- Authority
- CN
- China
- Prior art keywords
- disc insulator
- test device
- conductive plate
- withstand test
- conduct piece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- G01R31/1245—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 line insulators or spacers, e.g. ceramic overhead line cap insulators; of insulators in HV bushings
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The present invention relates to a kind of disc insulator Withstand test device.Disc insulator Withstand test device includes being used for the tank body for accommodating the pressure-resistant frock of disc insulator, the fixation conduct piece to overhang in tank is provided with tank body, it is provided with fixing active conductive part that conduct piece overhangs, for being electrically connected with fixed conduct piece in frock that disc insulator is pressure-resistant, one of them of fixed conduct piece and active conductive part are equipped with the power spring for being used for realization both electric connections.Active conductive part in the Withstand test device of the present invention realizes both electric connections by power spring with fixed conduct piece, prevents circuit virtual connection by the predeformation of power spring, contact is reliable.
Description
Technical field
The present invention relates to electrical equipment, and in particular to a kind of disc insulator Withstand test device.
Background technology
1100kV disc insulators are the core insulating parts of 1100kV GIS, in 1100kV electric power systems, benzvalene form insulation
The insulating reliability of son plays a crucial role.Disc insulator has segmentation gas chamber and supports the dual-use function of conductor,
Thus widely used in GIS.The performance of disc insulator directly affects the performance of GIS, therefore disc insulator is gone out
Pressure test is very necessary before factory.As shown in Figure 1, usually adopted when carrying out pressure test to disc insulator in the prior art
Assembled with form of bus bars, although improving the number tested every time(8), but the frequency of 3 electrical performance test of disc insulator failure
Rate is also very high, and if electrical property unsuccessfully also to disintegrate to the disc insulator of assembling, substantially increase workload.
To prevent gas leak during electrical performance test, need to install sealing ring 30 between cylinder 2 and disc insulator 3, and electrical property
Need to dismantle sealing ring 30 again when dismantling insulator after the test, assembling is complicated cumbersome, extremely inefficient.
Authorization Notice No. is that the utility model patent of CN204347192U discloses a kind of disc insulator pressure test
Device, including SF can be filled with6The tank body of gas, the interior pressure-resistant frock for being equipped with trolley and being placed on trolley of tank body, pressure-resistant frock
Conductors and conducting block including the housing for loading disc insulator, for being electrically connected with disc insulator, conducting block
For the high-pressure side of disc insulator and tank body to be connected.Needed pair for the conducting block that is connected with high-pressure side in frock that this is pressure-resistant
Threaded hole on the inserts of quasi- disc insulator is threadedly coupled, troublesome in poeration, higher to the requirement on machining accuracy of frock, and not
Terminally positioned high-tension shielding apparatus, electrion problem caused by associated components can not be avoided.
The content of the invention
It is an object of the invention to provide a kind of disc insulator pressure-resistant apparatus, to solve disc insulator in the prior art
With the technical problem of tank body circuit virtual connection when circuit is connected.
To achieve the above object, the technical solution 1 that disc insulator Withstand test device provided by the present invention uses:One
Kind disc insulator Withstand test device, including for accommodating the tank body of the pressure-resistant frock of disc insulator, be provided with tank body
The fixation conduct piece to overhang in tank, be provided with frock that disc insulator is pressure-resistant it is that fixed conduct piece overhangs, for fixation
The active conductive part that conduct piece is electrically connected, one of them of the fixed conduct piece and active conductive part are equipped with being used for realization
The power spring that both are electrically connected.
The beneficial effects of the invention are as follows:Active conductive part in the Withstand test device of the present invention passes through with fixed conduct piece
Power spring realizes both electric connections, prevents circuit virtual connection by the predeformation of power spring, contact is reliable.
Improved on the basis of the technical solution 1 of disc insulator Withstand test device and obtain technical solution 2:The activity
Conduct piece includes conducting rod, and the power spring is sleeved on conducting rod.Power spring is directly set on conducting rod, structure letter
It is single, it is easy for installation.
Improved on the basis of the technical solution 2 of disc insulator Withstand test device and obtain technical solution 3:The fixation
One of them of conduct piece and active conductive part are with conductive plate.Contact area is increased by conductive plate, reduces active conductive
Fit precision between part and fixed conduct piece, without being directed at grafting, improves installation effectiveness.
Improved on the basis of the technical solution 3 of disc insulator Withstand test device and obtain technical solution 4:The activity
Conduct piece is equipped with power spring, and the fixed conduct piece includes conductive plate, and conductive plate, which has, to be used to match somebody with somebody with power spring top pressure
The conductive side of conjunction.
Improved on the basis of the technical solution 4 of disc insulator Withstand test device and obtain technical solution 5:The fixation
Conduct piece includes contact tube and the conductive plate positioned at the end that contact tube overhangs, spiral shell of the conductive plate by it towards contact tube side
The fixed contact tube of line connector support.
Improved on the basis of the technical solution 5 of disc insulator Withstand test device and obtain technical solution 6:The conduction
The first axially extending shielding case along conductive plate is equipped with away from the side of power spring on disk, the first shielding case, which has, to be used to lead to
Cross the opening of contact tube.The discharge capacity that the end of the maskable contact tube of first shielding case produces.
Improved on the basis of the technical solution 6 of disc insulator Withstand test device and obtain technical solution 7:Described first
The opening of shielding case has the turn edge that top pressure cooperation is formed with the outer circumferential surface of contact tube.
Improved on the basis of the technical solution 4 of disc insulator Withstand test device and obtain technical solution 8:The conduction
On disk axially extending, circular ring shape the secondary shielding cover along conductive plate is equipped with towards the side of power spring.
Improved on the basis of the technical solution 8 of disc insulator Withstand test device and obtain technical solution 9:The conduction
Disk is disk structure, and the secondary shielding cover is circumferentially in the outer circumferential surface of conductive plate.
Improved on the basis of the technical solution 9 of disc insulator Withstand test device and obtain technical solution 10:It is described to lead
On outer circumferential surface on electroplax the 3rd axially extending shielding case along conductive plate is additionally provided with away from the side of power spring.
Improved on the basis of the technical solution 10 of disc insulator Withstand test device and obtain technical solution 11:Described
The opening of two shielding cases and/or the 3rd shielding case has the turn edge along its circumferentially extending.
Disc insulator Withstand test device technical solution 1 to 10 any one on the basis of improve obtain technical side
Case 12:The pressure-resistant frock of disc insulator includes at least two and is used for the cylinder of disc insulator connection bunchiness and for propping up
The trolley of fixed cylinder is supportted, the front and rear sides on the trolley are respectively provided with the outer circumferential surface branch with disc insulator or cylinder
Support coordinates with the fixed block of block disc insulator scroll forward and backward.
Improved on the basis of the technical solution 12 of disc insulator Withstand test device and obtain technical solution 13:It is described solid
Determining block is included along the spaced apart paired nylon cushion block of trolley left and right directions.
Disc insulator Withstand test device technical solution 1 to 10 any one on the basis of improve obtain technical side
Case 14:The end of the cylinder is electrically connected with ground wire.
Brief description of the drawings
Fig. 1 is the structure diagram of disc insulator pressure-resistant apparatus in the prior art;
Fig. 2 is the structure diagram of disc insulator pressure-resistant apparatus provided by the present invention;
Fig. 3 is the connection diagram that conduct piece and active conductive part are fixed in the disc insulator pressure-resistant apparatus shown in Fig. 2;
Fig. 4 is the structure diagram that conduct piece is fixed in the disc insulator pressure-resistant apparatus shown in Fig. 2;
Fig. 5 be Fig. 2 shown in disc insulator pressure-resistant apparatus in the pressure-resistant frock of disc insulator side view.
Embodiment
Embodiments of the present invention are described further below in conjunction with the accompanying drawings.
The specific embodiment of the disc insulator pressure-resistant apparatus of the present invention, as shown in Figures 2 to 4, a kind of disc insulator
Pressure-resistant apparatus, including for accommodating the tank body 1 of the pressure-resistant frock of disc insulator, the fixation for being provided with overhanging in tank on tank body is led
Electric part, be provided with frock that disc insulator is pressure-resistant it is that fixed conduct piece overhangs, for what is be electrically connected with fixed conduct piece
Active conductive part, one of them of fixed conduct piece and active conductive part are equipped with the conductive bullet for being used for realization both electric connections
Spring 5.
Tank body 1 is the hollow cylinder of one end open, and the inner cavity of cylinder is used for housing insulation gas, the opening of tank body 1
End is removably equipped with the opening for being used to block tank body 1 and is equipped with the cover board 11 of the inner cavity of sealed shell of tank 1, cover board 11 for auxiliary
The handle for opening cover board is helped, is installed with aerating device 12 on tank body 1, aerating device 12 is connected with the inner cavity of tank body 1 with to tank
The insulating gas being filled with body 1 in insulating gas or extraction tank body 1, the interior track 13 being equipped with for 6 guiding movement of trolley of tank body 1.
Frock that disc insulator is pressure-resistant includes being used to multiple disc insulators 3 are connected the cylinder 2 of bunchiness and are used to support
The trolley 6 of fixed cylinder 2, disc insulator 3 have three, and the lower part of trolley 6 is equipped with the roller 61 for being used for being slided on track 13,
The forward and backward side of trolley 6 is respectively provided with to be coordinated with 3 scroll forward and backward of block disc insulator with the support of the outer circumferential surface of cylinder 2
Fixed block 62, as shown in figure 5, fixed block 62 is the spaced apart paired nylon cushion block of left and right directions along trolley 6, each pair Buddhist nun
Imperial cushion block coordinates the outer circumferential surface of support block cylinder along the longitudinal direction, and trolley 6 can be along 13 guiding movement of track and then drive benzvalene form
Insulator 3 moves.
As shown in Fig. 2, definition right side is head end, left side is end, cylinder 2 includes cylinder body, and disc insulator 3 inserts
In cylinder body and its end is folded between the ring flange 21 of adjacent two cylinder 2, and bolt is installed on the method for two cylinder bodies
Three to be fixed among blue disk 21 and disc insulator 3, connecting rod 32 is electrically connected between adjacent disc insulator 3, with
This similar fixed concatenation for realizing three disc insulators 3.The opening of three disc insulators 3 arranges forward, head end benzvalene form
The fixed conducting rod 31 to overhang towards fixed conduct piece on the front end face of the center conductor of insulator, power spring 5, which is set in, leads
The end of the overhanging of electric pole 31, cantilevered end have block step of the stopping surface towards fixed conduct piece 4 with fixing conduct piece 4
Top pressure coordinates fixed power spring 5, and the rear end of end disc insulator 3 is equipped with high-tension shielding 22, and the end of cylinder 2 is electrically connected
There is ground wire 15, easy to reliable ground.The assembly method of disc insulator and assembly method phase of the prior art in cylinder 2
Together, but no longer need sealing ring is installed between ring flange and sealed, between disc insulator 3 and ring flange 21 and cylinder
2 head end is open state to allow to pass through insulating gas.
As shown in Figures 3 and 4, tank body 1 be equipped be used for it is being electrically connected with testing transformer 7, towards the fixation to overhang in tank
Conduct piece 4, fixed conduct piece 4 include one end be electrically connected by fingertip with tank body, the other end towards the contact tube 40 to overhang in tank,
And positioned at contact tube 40 overhanging end conductive plate 41, conductive plate 41 is disk structure, conductive plate 41 have be used for
The conductive side that 5 top pressure of power spring coordinates, contact tube 40 are equipped with internal thread segment, conductive plate 41 for hollow-core construction and its projecting end
The fixed contact tube 40 of the support of threaded connector 43 by it towards the side of contact tube 40, threaded connector 43 is c-type structure,
The external thread section with the internal thread segment threaded engagement of contact tube 40, conductive plate 41 are respectively equipped with the two sides of threaded connector 43
Upper the first axially extending shielding case 44 being equipped with away from the side of power spring 5 along conductive plate 41, the first shielding case, which has, to be used
In the opening by contact tube 40, opening has the turn edge that top pressure cooperation is formed with the outer circumferential surface of contact tube 40, conductive plate
41st, corresponding in left-right direction run through, for the logical of grafting bolt 45 is respectively equipped with 43 and first shielding case 44 of threaded connector
Hole, three are fixedly connected by bolt 45.
The outer circumferential surface of conductive plate 41 is installed with along the axially extending shielding case of conductive plate respectively, and shielding case is included towards conductive
The secondary shielding cover 42 and the 3rd shielding case 46 away from the extension of 5 side of power spring of 5 side of spring extension, secondary shielding cover 42
The turn edge along its circumferentially extending is respectively provided with the opening of the 3rd shielding case 46.
In use, the male and fomale(M&F) electrode that disc insulator 3 assembles is installed, cylinder body and connecting rod 32 are loaded onto afterwards,
Then cylinder body and the assembling of disc insulator 3 are fixed with bolt, and utilizes flange by three disc insulator strings to one
Rise and be positioned on trolley 6, cylinder body and disc insulator 3 collectively form cylinder 2, are consolidated cylinder 2 to be tried with fixed block 62
It is scheduled on trolley 6 to prevent 2 scroll forward and backward of cylinder, conducting rod 31 is fixed in the electrode of 3 concave surface of disc insulator, conducting rod
31 front end sleeve is equipped with power spring 5, and conductive plate 41, threaded connector 43 are fixed on to the rear end of contact tube 40, promoted forward
Trolley 6 makes power spring 5 be come into full contact with conductive plate 41, finally a piece-root grafting ground wire 15 is connected in the rear end of cylinder 2, easy to reliable
Ground connection, closed cover 11 and by aerating device 12 to being inflated to disc insulator minimal function pressure in tank body 1, be powered afterwards
Carry out pressure test.
In the present embodiment, disc insulator component includes the disc insulator of three concatenations, in other embodiments,
Can be other numbers.
In the present embodiment, the contact tube in fixed conduct piece is the hollow contact tube being electrically connected by fingertip with tank body,
In other embodiments or other structures, such as solid construction.
In the present embodiment, the conductive plate in fixed conduct piece is disc structure, is separately set with contact tube, in other realities
Apply in example or integrative-structure, as long as there is the contact surface of a larger area.
In the present embodiment, secondary shielding cover is installed on the outer circumferential surface of conductive plate, in other embodiments, secondary shielding cover
The ring shielding cover with opening that can also be mounted on the left of conductive plate.
In other embodiments, power spring can also be installed on fixed conduct piece.
In other embodiments, conductive plate can also be installed on active conductive part.
In other embodiments, conductive plate can also be connected using other modes with contact tube, be such as clamped.
In other embodiments, ground wire can also be connected to the other positions in the pressure-resistant frock of disc insulator.
Claims (10)
1. a kind of disc insulator Withstand test device, including for accommodating the tank body of the pressure-resistant frock of disc insulator, on tank body
The fixation conduct piece to overhang in tank is provided with, fixed conduct piece overhangs, use is provided with frock that disc insulator is pressure-resistant
In the active conductive part being electrically connected with fixed conduct piece, it is characterised in that:Its of the fixed conduct piece and active conductive part
In one be equipped be used for realization both electric connection power spring.
2. disc insulator Withstand test device according to claim 1, it is characterised in that:The active conductive part includes
Conducting rod, the power spring are sleeved on conducting rod.
3. disc insulator Withstand test device according to claim 1, it is characterised in that:The fixed conduct piece and work
One of them of moving conductive part is with conductive plate.
4. disc insulator Withstand test device according to claim 3, it is characterised in that:Set on the active conductive part
There is power spring, the fixed conduct piece includes conductive plate, and conductive plate has the conductive side for being used for coordinating with power spring top pressure
Face.
5. disc insulator Withstand test device according to claim 4, it is characterised in that:The fixed conduct piece includes
Contact tube and the conductive plate positioned at the end that contact tube overhangs, threaded connector branch of the conductive plate by it towards contact tube side
The fixed contact tube of support.
6. disc insulator Withstand test device according to claim 5, it is characterised in that:Deviate from the conductive plate and lead
The side of electrical spring is equipped with the first axially extending shielding case along conductive plate, and the first shielding case, which has, to be used for by contact tube
Opening.
7. disc insulator Withstand test device according to claim 6, it is characterised in that:First shielding case is opened
There is the turn edge that top pressure cooperation is formed with the outer circumferential surface of contact tube at mouthful.
8. disc insulator Withstand test device according to claim 4, it is characterised in that:Direction is led on the conductive plate
The side of electrical spring is equipped with axially extending, circular ring shape the secondary shielding cover along conductive plate.
9. disc insulator Withstand test device according to claim 8, it is characterised in that:The conductive plate is disc type
Structure, the secondary shielding cover is circumferentially in the outer circumferential surface of conductive plate.
10. disc insulator Withstand test device according to claim 9, it is characterised in that:The periphery of the conductive plate
On face the 3rd axially extending shielding case along conductive plate is additionally provided with away from the side of power spring.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710987174.5A CN107991585B (en) | 2017-10-20 | 2017-10-20 | Basin-type insulator voltage withstand test device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710987174.5A CN107991585B (en) | 2017-10-20 | 2017-10-20 | Basin-type insulator voltage withstand test device |
Publications (2)
Publication Number | Publication Date |
---|---|
CN107991585A true CN107991585A (en) | 2018-05-04 |
CN107991585B CN107991585B (en) | 2020-07-10 |
Family
ID=62029893
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710987174.5A Active CN107991585B (en) | 2017-10-20 | 2017-10-20 | Basin-type insulator voltage withstand test device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN107991585B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108963928A (en) * | 2018-07-20 | 2018-12-07 | 西安交通大学 | A kind of base unit and piping lane transmission of electricity GIL in ultra-high/extra-high voltage piping lane transmission of electricity GIL |
CN112748311A (en) * | 2020-12-07 | 2021-05-04 | 河南平高电气股份有限公司 | GIS on-site voltage withstand testing device and voltage withstand conductor assembly thereof |
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 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN202166716U (en) * | 2011-06-10 | 2012-03-14 | 平高集团有限公司 | Insulation test device used for superhigh voltage basin-type insulator |
CN202453457U (en) * | 2012-02-09 | 2012-09-26 | 山东泰开高压开关有限公司 | Withstand voltage tool for 550kV disc insulator |
CN202661492U (en) * | 2012-07-20 | 2013-01-09 | 山东泰开高压开关有限公司 | Quick connector for insulator testing tool of composite apparatus |
CN203720308U (en) * | 2014-02-20 | 2014-07-16 | 山东泰开高压开关有限公司 | Multi-type 126kV insulating stand voltage withstanding type tool |
CN204347192U (en) * | 2014-12-15 | 2015-05-20 | 正泰电气股份有限公司 | Disc insulator Withstand test device |
CN205450182U (en) * | 2015-12-29 | 2016-08-10 | 平高集团有限公司 | Withstand voltage device of benzvalene form insulator for GIS and benzvalene form insulator fixed bolster thereof |
-
2017
- 2017-10-20 CN CN201710987174.5A patent/CN107991585B/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN202166716U (en) * | 2011-06-10 | 2012-03-14 | 平高集团有限公司 | Insulation test device used for superhigh voltage basin-type insulator |
CN202453457U (en) * | 2012-02-09 | 2012-09-26 | 山东泰开高压开关有限公司 | Withstand voltage tool for 550kV disc insulator |
CN202661492U (en) * | 2012-07-20 | 2013-01-09 | 山东泰开高压开关有限公司 | Quick connector for insulator testing tool of composite apparatus |
CN203720308U (en) * | 2014-02-20 | 2014-07-16 | 山东泰开高压开关有限公司 | Multi-type 126kV insulating stand voltage withstanding type tool |
CN204347192U (en) * | 2014-12-15 | 2015-05-20 | 正泰电气股份有限公司 | Disc insulator Withstand test device |
CN205450182U (en) * | 2015-12-29 | 2016-08-10 | 平高集团有限公司 | Withstand voltage device of benzvalene form insulator for GIS and benzvalene form insulator fixed bolster thereof |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108963928A (en) * | 2018-07-20 | 2018-12-07 | 西安交通大学 | A kind of base unit and piping lane transmission of electricity GIL in ultra-high/extra-high voltage piping lane transmission of electricity GIL |
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 |
CN112748311A (en) * | 2020-12-07 | 2021-05-04 | 河南平高电气股份有限公司 | GIS on-site voltage withstand testing device and voltage withstand conductor assembly thereof |
Also Published As
Publication number | Publication date |
---|---|
CN107991585B (en) | 2020-07-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN107991585A (en) | A kind of disc insulator Withstand test device | |
CN203519770U (en) | Device for high-voltage power cable GIS terminal commissioning test | |
CN106840456A (en) | Generating set oil groove dedicated temperature sensor | |
CN104698356B (en) | A kind of test casing of GIS terminal experimental rig | |
CN108333483A (en) | A kind of experiment disc insulator assembling assembly | |
CN105067976A (en) | Cable GIS terminal integral prefabricated AC withstand voltage testing device | |
CN208188160U (en) | Electric wire connecting junction is combined with European connect-disconnect plug high-tension cable pressure test | |
CN106324457B (en) | Withstand voltage testing device for insulating part | |
CN109727713A (en) | A kind of high-power cold cable of charging pile string of red copper bellows structure | |
CN101958172B (en) | Superconducting joint of cable conductor in double-chamber low-resistance tube | |
CN109887670A (en) | The high-power charging pile and cold cable of a kind of red copper bellows structure | |
CN202903826U (en) | Guiding positioning structure of combined electrical apparatus insulator testing tooling | |
CN210378627U (en) | Basin-type insulator | |
CN209266086U (en) | The high-power charging pile and cold cable of a kind of red copper bellows structure | |
CN202167785U (en) | 126kV cabinet-type gas-insulated metal-enclosed switch device | |
CN104133160B (en) | Insulating part pressure test frock | |
CN2891427Y (en) | Adapter body | |
CN108761147B (en) | Cable intermediate head test device | |
CN206490488U (en) | The handware and cradle of cradle | |
CN208173487U (en) | A kind of pole that can survey vacuum degree | |
CN207851172U (en) | A kind of cable flexible joint test tool | |
CN107274981B (en) | Simulation cable for cable accessory test and detection method of cable accessory | |
CN214626075U (en) | Aerify cabinet with fixed shielding structure | |
CN205353282U (en) | Pillar insulator pressure resistance test installation for GIS | |
CN220857155U (en) | Ultrahigh voltage cable conversion device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |