CN108075421A - A kind of busbar fixation assembly in high tension distribution system - Google Patents
A kind of busbar fixation assembly in high tension distribution system Download PDFInfo
- Publication number
- CN108075421A CN108075421A CN201711444358.3A CN201711444358A CN108075421A CN 108075421 A CN108075421 A CN 108075421A CN 201711444358 A CN201711444358 A CN 201711444358A CN 108075421 A CN108075421 A CN 108075421A
- Authority
- CN
- China
- Prior art keywords
- busbar
- rotating disc
- connecting shaft
- fixed
- distribution system
- 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.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G5/00—Installations of bus-bars
Abstract
The present invention provides the busbar fixation assemblies in a kind of high tension distribution system, high tension distribution system includes three parallel busbares, this fixation assembly includes two radicle supporting rods and a midfoot support bar, a fixed seat is fixedly installed on midfoot support bar, three busbares are fixedly linked with fixed seat, a circular fixed disk is fixedly installed on the supporting rod of end, a connecting shaft is fixedly installed in the middle part of fixed disk, connecting shaft connects a rotating disc, the torsional spring that rotating disc can be driven to be rotated relative to connecting shaft is provided between rotating disc and connecting shaft, busbar is fixedly connected with fixed disk and rotating disc, rotating disc is located at fixed disk close to the one side of busbar fixed seat；Fixed seating is located at the middle of matched fixed disk and fixed seat in the middle of two fixed disks, rotating disc；Connecting shaft is also fixedly connected between fixed seat.The present invention has many advantages, such as busbar stress equalization.
Description
Technical field
The present invention relates to a kind of detecting system of grid equipment, the busbar in more particularly to a kind of high tension distribution system is consolidated
Determine assembly.
Background technology
Tubular bus in substation operation is in varying environment, Different climate (such as high temperature and heating summer, sleet and snow ice), busbar
It being moved under the influence of near region short trouble and busbar gold utensil failure due to expanding with heat and contract with cold, pipe is female to generate friction with bracket,
The support porcelain vase of lower section can be caused to be subject to larger stress, shorten porcelain vase service life or even bus support column porcelain bottle fracture accident.
Busbar expands with heat and contract with cold, its length is caused to differ, and causes busbar recessed or is overdrawn, so as to influence busbar
Performance has an effect on the intensity of busbar fixing device, under various circumstances, can if the amount of tension of busbar cannot be monitored timely
The transmission of electricity stability and security of substation can be influenced, causes larger economic loss and security risk.
The content of the invention
In view of the above problems existing in the prior art, the purpose of the present invention is to provide in a kind of high tension distribution system
Busbar fixation assembly, the technical problems to be solved by the invention are how busbar to be carried out effectively fixing, and make it equal by pulling force
Weighing apparatus.
The purpose of the present invention can be realized by following technical proposal：A kind of busbar in high tension distribution system is fixed total
Include three parallel busbares into, which is characterized in that high tension distribution system, this fixation assembly include two radicle supporting rods and
A piece midfoot support bar, is fixedly installed a fixed seat on the midfoot support bar, three busbares with fixed seat stationary phase
Even, a circular fixed disk is fixedly installed on the end supporting rod, a company is fixedly installed in the middle part of the fixed disk
Axis, the connecting shaft connect a rotating disc, and being provided between the rotating disc and connecting shaft can drive rotating disc to be rotated relative to connecting shaft
Torsional spring, busbar is fixedly connected with fixed disk and rotating disc, and the rotating disc is located at fixed disk close to busbar fixed seat
One side；The fixed seating is located at matched fixed disk and fixed seat in the middle of two fixed disks, the rotating disc
Middle；The connecting shaft is also fixedly connected between fixed seat.
Busbar is supported and fixed by this structure, busbar is not only made to be no longer on sagging state, and busbar institute
The tension equalizer born, makes that each component service life is longer, and whole system is more safe and reliable.
Torsional spring drives rotating disc to be rotated relative to connecting shaft, makes the stroke of busbar be still within it by way of distortion
Tension, certainly, stroke are very small, do not interfere with the interval between each busbar, laser transmitter projects laser, and
It is received by laser pickoff, each laser pickoff corresponds to the relative torsion angle of a fixed disk and rotating disc, the angle
It can be obtained when a certain laser pickoff receives laser signal, since the fixed spacing be afraid of between rotating disc is fixed,
By the angle, the length of busbar at this time can be calculated, and the bus length under original state difference be busbar stretching
Amount.
The amount of tension of busbar is converted by the windup-degree of rotating disc, on the one hand can detect the amount of tension of busbar,
The force way of busbar can also be changed, busbar is made to bear the drawing force of relative equilibrium, avoid the busbares of fixed position both sides by
To pulling force become with environmental change, cause porcelain vase unbalance stress and damage.
The rotating disc includes two halfbodies one, and the middle part of the plate body one offers a mounting hole, and the connecting shaft plugs
In mounting hole, there is the escape groove of spiral in the inner wall of the hole installing, the torsional spring is arranged in escape groove, the torsional spring
Inner wall of the both ends respectively with connecting shaft and mounting hole be fixedly linked, three location holes are further opened on the plate body one, it is described
Location hole inner wall has the groove of an indent, and two one corresponding grooves of halfbody form a spherical annular groove, the location hole
A hemispheric hinged block is inside additionally provided with, two articulated joints can make up a sphere with annular groove cooperation, the hinged block
On offer allow busbar by perforation, the busbar is fixedly linked with hinged block；The hinged block is slidably connected at ring
In slot；It is detachably connected between two halfbodies one by bolt.
Rotating disc needs accomplish that the air line distance being relatively fixed between disk is constant, and can be relatively fixed disc spins, in order to
It prevents busbar from being worn at the place of being bent, sets there are two hinged block, two hinged blocks form a sphere, can be in annular groove
Interior rotation, busbar are fixed in the perforation on sphere.
The compression piece coordinated with halfbody one is further included, it is described to compress piece with the compressed part being adapted to perforation and with being hinged
The fixed part of the medial surface adaptation of block, the inner surface of the compressed part have to the inclined pawl in fixed part direction.
Two halfbodies one from the both ends of busbar to middle part are installed respectively, pawl are made to be obedient to installation direction, installation is complete
Afterwards, pawl has anti-skidding effect to busbar, and the pawl direction on two halfbodies one is on the contrary, effectively can prevent busbar from altering
It is dynamic.
Compressed part can be into row buffering, can also improve the clamping force of busbar between two halfbodies one.
Bearing, the inner ring of the bearing to be arranged and be fixed on connecting shaft there are two tools on the connecting shaft, outside the bearing
On circle there are several protrusions, there is the recess with male cooperation on the side of the rotating disc.
The structure is not only convenient for disassembly and assembly, but also can prevent that rotating disc is opposite on the premise of not influencing to rotate disc spins
Connecting shaft rotates.
The fixed disk includes two halfbodies two, and the fixed disk close to rotating disc one side is fixedly connected with connecting shaft, and described half
It offers jack corresponding with three busbares on body two, there is the stepped hole greater diameter than jack in the jack, described
It is provided with a roll film in rank hole, the wall surface of the inner end of described roll film one end and stepped hole is fixedly linked, and roll film and stepped hole
The diameter of one end that is fixedly linked of wall surface be more than the diameter of the other end, be in a hollow cone column after the roll film expansion.
Busbar fixing on fixed disk, it is necessary to meet firm position, and allow it is a certain amount of be radially expanded and shrink,
Because in temperature when environment change, slight change can occur busbar for diameter, in order not to the company to being used to fix busbar
Fitting causes stress concentration, and the outer end of the roll film roll film is provided in jack and can automatically be rolled up in the case where not stressing
It receives, in interspersed busbar, moreover it is possible to squeeze the roll film and continue to furl, it is made to form the positioning sleeve of an annular after furling, makes it not only
Can in the interspersed lower with busbar compression of busbar, two halfbodies one after being bolted can fixation, roll up roll film
The number of turns for compressing and needing is received to busbar, there is cushion space, and busbar fixation, additionally it is possible to prevent busbar to any direction
Play.
The medial surface and lateral surface of the roll film are respectively provided with the teeth that can be engaged.
In order to which busbar is made not skid between roll film, teeth are respectively arranged in the both sides of roll film, after retracting,
The position being bonded to each other can form meshing state, and roll film is made to be not easy to be released.
The roll film is made of metal material.
The compression piece is made of rubber material.
Description of the drawings
Fig. 1 is the overall structure diagram that busbar stretches amount detection systems.
Fig. 2 is the planar structure schematic diagram of rotating disc.
Fig. 3 is the sectional view of rotating disc.
Fig. 4 is the planar structure schematic diagram of fixed disk.
Fig. 5 is the sectional view of fixed disk.
Fig. 6 is the partial enlarged view of location A in Fig. 3.
Fig. 7 is the partial enlarged view of B location in Fig. 5.
In figure, a, busbar；11st, end supporting rod；12nd, midfoot support bar；21st, fixed seat；22nd, fixed disk；23rd, connecting shaft；
24th, rotating disc；31st, laser emitter；32nd, Laser Slabs；33rd, laser pickoff；41st, halfbody one；42nd, mounting hole；43rd, avoid
Slot；44th, location hole；45th, groove；46th, annular groove；47th, torsional spring；48th, hinged block；49th, perforate；5th, piece is compressed；51st, compressed part；
52nd, fixed part；53rd, pawl；54th, bearing；55th, it is raised；61st, halfbody two；62nd, jack；63rd, stepped hole；64th, roll film.
Specific embodiment
It is specific embodiments of the present invention and with reference to attached drawing below, technical scheme is further described,
But the present invention is not limited to these embodiments.
As shown in Figure 1, high tension distribution system includes three parallel busbar a, the present apparatus is supported including two radicles
Bar 11 and a midfoot support bar 12, are fixedly installed a fixed seat 21 on middle studdle, and three busbar a are and fixed seat
21 are fixedly linked, and a circular fixed disk 22, the middle part fixed setting of fixed disk 22 are fixedly installed on end supporting rod 11
There is a connecting shaft 23, connecting shaft 23 connects a rotating disc 24, and 24 phase of rotating disc can be driven by being provided between rotating disc 24 and connecting shaft 23
To the torsional spring 47 that connecting shaft 23 rotates, busbar a is fixedly connected with fixed disk 22 and rotating disc 24, is uniformly arranged on fixed disk 22
There are three laser emitters 31, and the generation path of laser emitter 31 is parallel with connecting shaft 23, are provided on rotating disc 24 and swash with each
31 corresponding laser pick-off structure of optical transmitting set；Rotating disc 24 is located at fixed disk 22 close to the one side of busbar a fixed seats 21.
Torsional spring 47 drives rotating disc 24 to be rotated relative to connecting shaft 23, makes the stroke of busbar a make it by way of distortion still
So in tension, certainly, stroke is very small, does not interfere with the interval between each busbar a, and laser emitter 31 is sent out
Laser is penetrated, and is received by laser pickoff 33, each laser pickoff 33 corresponds to the phase of a fixed disk 22 and rotating disc 24
To windup-degree, which can obtain when a certain laser pickoff 33 receives laser signal, due to fixed fearness and rotate
Spacing between disk 24 is fixed, and by the angle, the length of busbar a at this time can be calculated, with the busbar under original state
The difference of a length is the amount of tension of busbar a.
The amount of tension of busbar a is converted by the windup-degree of rotating disc 24, on the one hand can detect the drawing of busbar a
The amount of stretching can also change the force way of busbar a, and busbar a is made to bear the drawing force of relative equilibrium, avoid fixed part 52 two
The pulling force that the busbar a of side is subject to becomes with environmental change, causes porcelain vase unbalance stress and damages.
Temperature Humidity Sensor on fixed disk 22 can also be set, a processing unit is set, Temperature Humidity Sensor is received
Signal, 33 received signal of laser pickoff be wirelessly delivered to the control room on ground, control room sets work
Condition machine, for each data of statistics and analysis, and stores, and is monitored and overhauls for the situation to busbar a.
As shown in Fig. 2, Fig. 3 and Fig. 6, rotating disc 24 includes two halfbodies 1, and the middle part of plate body one offers an installation
Hole 42, connecting shaft 23 are plugged in mounting hole 42, have the escape groove 43 of spiral on 42 inner wall of mounting hole, torsional spring 47, which is arranged on, to be kept away
It allows in slot 43, the inner wall of the both ends of torsional spring 47 respectively with connecting shaft 23 and mounting hole 42 is fixedly linked, and is further opened on plate body one
Three location holes 44,44 inner wall of location hole have the groove 45 of an indent, and two one 41 corresponding grooves 45 of halfbody form one and are in
The annular groove 46 of spherical surface, is additionally provided with a hemispheric hinged block 48 in location hole 44, two articulated joints can make up one with
The sphere that annular groove 46 coordinates, offer on hinged block 48 allow busbar a by perforation 49, busbar a and 48 stationary phase of hinged block
Even；Hinged block 48 is slidably connected in annular groove 46；It is detachably connected between two halfbodies 1 by bolt.
The needs of rotating disc 24 accomplish the air line distance being relatively fixed between disk 22 not side, and can be relatively fixed disk 22 and revolve
Turn, busbar a is worn at the place of being bent in order to prevent, is set there are two hinged block 48, two hinged blocks 48 form a ball
Body can rotate in annular groove 46, and busbar a is fixed in the perforation 49 on sphere.
Further include the compression piece 5 coordinated with halfbody 1, compress piece 5 have with 49 compressed parts 51 that are adapted to of perforation and with
The fixed part 52 of the medial surface adaptation of hinged block 48, the inner surface of compressed part 51 have to the inclined pawl in 52 direction of fixed part
53。
Two halfbodies 1 from the both ends of busbar a to middle part are installed respectively, pawl 53 is made to be obedient to installation direction, installation
After finishing, pawl 53 has anti-skidding effect to busbar a, and 53 direction of pawl on two halfbodies 1 is on the contrary, can be effective
Prevent busbar a plays.
Compressed part 51 can be into row buffering, can also improve the clamping force of busbar a between two halfbodies 1.
Bearing 54, the inner ring of bearing 54 to be arranged and be fixed on connecting shaft 23 there are two tools on connecting shaft 23, the outer ring of bearing 54
It is upper to have several raised 55, there is the recess with 55 cooperation of protrusion on the side of rotating disc 24.
The structure is not only convenient for disassembly and assembly, but also can prevent rotating disc 24 on the premise of not influencing rotating disc 24 and rotating
It is rotated relative to connecting shaft 23.
Laser pick-off structure includes being arranged on Laser Slabs 32 of the rotating disc 24 on the one side of fixed disk 22, laser
Several laser pickoffs 33 are provided on plate 32, each laser pickoff 33 is identical with the distance between the axis of rotating disc 24.
As shown in Fig. 4, Fig. 5 and Fig. 7, fixed disk include two halfbodies 2 61, close to 24 one side of rotating disc fixed disk with
Connecting shaft 23 is fixedly connected, and jack 62 corresponding with three busbar a is offered on halfbody 2 61, and jack 62 is interior big with a diameter
In being provided with a roll film 64 in the stepped hole 63 of jack 62, stepped hole 63, the wall of 64 one end of roll film and the inner end of stepped hole 63
Face is fixedly linked, and the diameter of one end that is fixedly linked of the wall surface of roll film 64 and stepped hole 63 is more than the diameter of the other end, roll film
It is in a hollow cone column after 64 expansion.
Busbar a fixing on fixed disk 22 allows a certain amount of to be radially expanded and receive, it is necessary to meet firm position
Contracting because busbar a in temperature when environment change, slight change can occur for diameter, in order not to being used to fix busbar
The connector of a causes stress concentration, and roll film 64 is provided in jack 62, and the outer end of the roll film 64 can be in the feelings not stressed
Automatic rolling under condition, in interspersed busbar a, moreover it is possible to squeeze the roll film 64 and continue to furl, it is made to form determining for an annular after furling
Position set makes it that can not only be compressed in the interspersed lower and busbar a of busbar a, two energy after being bolted of halfbody 1
Enough fixations, make roll film 64 furl to busbar a the number of turns for compressing needs, have cushion space, and busbar a fixations, also
Busbar a can be prevented to any direction play.
The medial surface and lateral surface of roll film 64 are respectively provided with the teeth that can be engaged.
In order to which busbar a is made not skid between roll film 64, teeth are respectively arranged in the both sides of roll film 64, are being rolled up
After receipts, the position being bonded to each other can form meshing state, and roll film 64 is made to be not easy to be released.
Roll film 64 is made of metal material.
Piece 5 is compressed to be made of rubber material.
Fixed seat 21 is located at the middle of two fixed disks 22, and rotating disc 24 is located at matched fixed disk 22 and consolidates
The middle of reservation 21.
Connecting shaft 23 is also fixedly connected between fixed seat 21.
Busbar a is supported and fixed by this structure, busbar a is not only made to be no longer on sagging state, and busbar
The tension equalizer that a is born, makes that each component service life is longer, and whole system is more safe and reliable.
This detection method is：Busbar is set not send the state original state of distortion, it is assumed that be located under the original state and swash
Excuse me in the middle part of light-receiving disk, and receiver receives the state for the laser beam that laser emitter is sent as original state, initial shape
The laser pickoff that the laser beam that laser emitter is sent is received under state is denoted as initial laser receiver, and busbar is in initial shape
Length under state is initial length, when calculating and marking other laser pickoffs to receive the laser beam that laser emitter is sent
Busbar is with respect to the inclination angle under original state；During detection, start laser emitter, receive the laser beam that laser emitter is sent
The corresponding inclination angle of laser pickoff be under this state busbar distortion inclination angle, pass through distance between fixed disk and rotating disc
The difference of busbar initial length and bus length at this time can be calculated with the inclination angle, which is busbar amount of tension.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology belonging to the present invention
The technical staff in field can do described specific embodiment various modifications or additions or in a similar way
It substitutes, but without departing from spirit of the invention or beyond the scope of the appended claims.
Claims (7)
1. a kind of busbar fixation assembly in high tension distribution system, which is characterized in that high tension distribution system include three it is parallel
Busbar (a), this fixation assembly includes two radicle supporting rods (11) and a midfoot support bar (12), on the midfoot support bar
A fixed seat (21) is fixedly installed, three busbares (a) are fixedly linked with fixed seat (21), on the end supporting rod (11)
A circular fixed disk (22) is fixedly installed, a connecting shaft (23), the company are fixedly installed in the middle part of the fixed disk (22)
Axis (23) connects a rotating disc (24), and rotating disc (24) phase can be driven by being provided between the rotating disc (24) and connecting shaft (23)
To the torsional spring (47) of connecting shaft (23) rotation, busbar (a) is fixedly connected with fixed disk (22) and rotating disc (24), the rotating disc
(24) it is located at fixed disk (22) close to the one side of busbar (a) fixed seat (21)；The fixed seat (21) is located at two fixed disks
(22) middle, the rotating disc (24) are located at the middle of matched fixed disk (22) and fixed seat (21)；It is described
Connecting shaft (23) is also fixedly connected between fixed seat (21).
A kind of 2. busbar fixation assembly in high tension distribution system according to claim 1, which is characterized in that the rotating disc
(24) two halfbodies one (41) are included, the middle part of the plate body one offers a mounting hole (42), and the connecting shaft (23) is plugged in
In mounting hole (42), there is the escape groove (43) of spiral on mounting hole (42) inner wall, the torsional spring (47) is arranged on avoidance
In slot (43), the inner wall of the both ends of the torsional spring (47) respectively with connecting shaft (23) and mounting hole (42) is fixedly linked, the plate body
Three location holes (44) are further opened on one, location hole (44) inner wall has the groove (45) of an indent, two halfbodies one
(41) corresponding groove (45) forms a spherical annular groove (46), and a hemispheric hinge is additionally provided in the location hole (44)
Block (48) is connect, two articulated joints can make up a sphere with annular groove (46) cooperation, be offered on the hinged block (48) fair
Perhaps busbar (a) by perforation (49), the busbar (a) is fixedly linked with hinged block (48)；The hinged block (48), which is slided, to be connected
It is connected in annular groove (46)；It is detachably connected between two halfbodies one (41) by bolt.
3. the busbar fixation assembly in a kind of high tension distribution system according to claim 2, which is characterized in that this assembly also wraps
Include the compression piece (5) with halfbody one (41) cooperation, it is described compress piece (5) have with perforation (49) compressed part (51) that is adapted to and with
The fixed part (52) of the medial surface adaptation of hinged block (48), the inner surface of the compressed part (51) have to fixed part (52) direction
Inclined pawl (53).
A kind of 4. busbar fixation assembly in high tension distribution system according to claim 3, which is characterized in that the connecting shaft
(23) bearing (54), the inner ring of the bearing (54) to be arranged and be fixed on connecting shaft (23) there are two tools on, the bearing (54)
Outer ring on have several raised (55), there is the recess with raised (55) cooperation on the side of the rotating disc (24).
5. according to the busbar fixation assembly in a kind of 1 or 2 or 3 or 4 high tension distribution system of claim, which is characterized in that
The fixed disk includes two halfbodies two (61), and the fixed disk close to rotating disc (24) one side is fixedly connected with connecting shaft (23), institute
State and jack (62) corresponding with three busbares (a) offered on halfbody two (61), have in the jack (62) greater diameter than
The stepped hole (63) of jack (62), the stepped hole (63) is interior to be provided with a roll film (64), described roll film (64) one end and step
The wall surface of the inner end in hole (63) is fixedly linked, and the diameter of one end that the wall surface of roll film (64) and stepped hole (63) is fixedly linked is big
It is in a hollow cone column after the diameter of the other end, roll film (64) expansion.
A kind of 6. busbar fixation assembly in high tension distribution system according to claim 5, which is characterized in that the roll film
(64) medial surface and lateral surface is respectively provided with the teeth that can be engaged.
A kind of 7. busbar fixation assembly in high tension distribution system according to claim 6, which is characterized in that the roll film
(64) it is made of metal material；The compression piece (5) is made of rubber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711444358.3A CN108075421B (en) | 2017-12-27 | 2017-12-27 | Bus fixing assembly in high-voltage distribution system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711444358.3A CN108075421B (en) | 2017-12-27 | 2017-12-27 | Bus fixing assembly in high-voltage distribution system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108075421A true CN108075421A (en) | 2018-05-25 |
| CN108075421B CN108075421B (en) | 2019-12-13 |
Family
ID=62156042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711444358.3A Active CN108075421B (en) | 2017-12-27 | 2017-12-27 | Bus fixing assembly in high-voltage distribution system |
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| Country | Link |
|---|---|
| CN (1) | CN108075421B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111952889A (en) * | 2020-08-26 | 2020-11-17 | 贵州首为电线电缆有限公司 | Cable tensioning device |
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| CN202305323U (en) * | 2011-10-20 | 2012-07-04 | 中国海洋石油总公司 | Tensile fixture for umbilical cable |
| CN202420445U (en) * | 2011-10-13 | 2012-09-05 | 杨玉强 | Metal material tensile deformation detector |
| CN203286994U (en) * | 2013-03-29 | 2013-11-13 | 国家电网公司 | Endoscopic device used for GIS internal bus installation quality detection |
| WO2014083989A1 (en) * | 2012-11-30 | 2014-06-05 | ニューブレクス株式会社 | Three-dimensional position measurement device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201387407Y (en) * | 2009-04-08 | 2010-01-20 | 河北科技大学 | Device for testing tensile strength of metal wire |
| CN202420445U (en) * | 2011-10-13 | 2012-09-05 | 杨玉强 | Metal material tensile deformation detector |
| CN202305323U (en) * | 2011-10-20 | 2012-07-04 | 中国海洋石油总公司 | Tensile fixture for umbilical cable |
| WO2014083989A1 (en) * | 2012-11-30 | 2014-06-05 | ニューブレクス株式会社 | Three-dimensional position measurement device |
| CN203286994U (en) * | 2013-03-29 | 2013-11-13 | 国家电网公司 | Endoscopic device used for GIS internal bus installation quality detection |
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| CN111952889A (en) * | 2020-08-26 | 2020-11-17 | 贵州首为电线电缆有限公司 | Cable tensioning device |
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| Publication number | Publication date |
|---|---|
| CN108075421B (en) | 2019-12-13 |
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Effective date of registration: 20191122 Address after: 510080 Dongfeng East Road, Dongfeng, Guangdong, Guangzhou, Zhejiang Province, No. 8 Applicant after: ELECTRIC POWER RESEARCH INSTITUTE, GUANGDONG POWER GRID CO., LTD. Address before: 314400 407, room 1, No. 16-1, Shi Dai Road, Haining Economic Development Zone, Haining, Jiaxing, Zhejiang Applicant before: HAINING WENSHUO TECHNOLOGY CONSULTING CO., LTD. |