CN108050951A - A kind of busbar in high tension distribution system stretches amount detection systems - Google Patents
A kind of busbar in high tension distribution system stretches amount detection systems Download PDFInfo
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- CN108050951A CN108050951A CN201711445294.9A CN201711445294A CN108050951A CN 108050951 A CN108050951 A CN 108050951A CN 201711445294 A CN201711445294 A CN 201711445294A CN 108050951 A CN108050951 A CN 108050951A
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- Prior art keywords
- busbar
- rotating disc
- connecting shaft
- fixed
- laser
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
Abstract
The present invention provides the busbares in a kind of high tension distribution system to stretch amount detection systems, including three parallel busbares, the present apparatus 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, laser emitter there are three being uniformly arranged on fixed disk, the generation path of laser emitter is parallel with connecting shaft, laser pick-off structure corresponding with each laser emitter is provided on rotating disc；Rotating disc is located at fixed disk close to the one side of busbar fixed seat.The present invention has many advantages, such as reliably fix busbar.
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 stretches
Amount detection systems.
Background technology
Tubular bus in substation operation is near in varying environment, Different climate (such as high temperature and heating summer, sleet and snow ice), busbar
It is moved under the influence of area's short trouble and busbar gold utensil failure due to expanding with heat and contract with cold, pipe is female to generate friction, meeting with bracket
The support porcelain vase of lower section is caused to be subject to larger stress, shortens 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 the property of busbar
Can, the intensity of busbar fixing device is had an effect on, it under various circumstances, may if the amount of tension of busbar cannot be monitored timely
The transmission of electricity stability and security of substation are 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 the mothers in a kind of high tension distribution system
Line stretches amount detection systems, and the technical problems to be solved by the invention are how busbar to be fixed, and conveniently it is stretched
Amount is detected.
The purpose of the present invention can be realized by following technical proposal：A kind of busbar amount of tension inspection in high tension distribution system
Examining system, which is characterized in that including three parallel busbares, the present apparatus includes two radicle supporting rods and a midfoot support
Bar is fixedly installed a fixed seat on the midfoot support bar, and three busbares are fixedly linked with fixed seat, the end support
A circular fixed disk is fixedly installed on bar, a connecting shaft, the connecting shaft connection one are fixedly installed in the middle part of the fixed disk
Rotating disc is provided with the torsional spring that rotating disc can be driven to be rotated relative to connecting shaft, busbar and fixation between the rotating disc and connecting shaft
Disk and rotating disc are fixedly connected with, and are uniformly arranged on the fixed disk there are three laser emitter, the hair of the laser emitter
Means of livelihood footpath is parallel with connecting shaft, and laser pick-off structure corresponding with each laser emitter is provided on the rotating disc；The rotation
Disk is located at fixed disk close to the one side of busbar fixed seat.
Torsional spring drives rotating disc to be rotated relative to connecting shaft, makes the stroke of busbar it be made to be still within drawing by way of distortion
Tight state, certainly, stroke is very small, does not interfere with the interval between each busbar, laser transmitter projects laser, and by swashing
Optical receiver receives, and each laser pickoff corresponds to the relative torsion angle of a fixed disk and rotating disc, and the angle is a certain
Laser pickoff can obtain when receiving laser signal, since the fixed spacing be afraid of between rotating disc is fixed, by this
Angle, can calculate the length of busbar at this time, and the bus length under original state difference be busbar amount of tension.
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.
Temperature Humidity Sensor on fixed disk can also be set, a processing unit is set, Temperature Humidity Sensor is received
Signal, laser pickoff received signal are wirelessly delivered to the control room on ground, and control room sets operating mode machine,
It for each data of statistics and analysis, and stores, is monitored and overhauls for the situation to busbar.
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 is fixedly linked, and three location holes, the positioning are further opened on the plate body one
Hole inner wall has the groove of an indent, and two one corresponding grooves of halfbody form a spherical annular groove, gone back in the location hole
A hemispheric hinged block is provided with, two articulated joints can make up a sphere with annular groove cooperation, be opened on the hinged block
Equipped with allow busbar by perforation, the busbar is fixedly linked with hinged block；The hinged block is slidably connected in annular groove；Two
It is detachably connected between a halfbody 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
It rotates, busbar is fixed in the perforation on sphere.
The compression piece coordinated with halfbody one is further included, the piece that compresses has and the compressed part being adapted to and and the hinged block of perforating
Medial surface adaptation fixed part, the inner surface of the compressed part has to the inclined pawl in fixed part direction.
Two halfbodies one from the both ends of busbar to middle part are installed respectively, pawl is made to be obedient to installation direction, after installation is complete,
Pawl has anti-skidding effect to busbar, and the pawl direction on two halfbodies one is on the contrary, busbar play can be prevented effectively.
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 laser pick-off structure includes being arranged on Laser Slabs of the rotating disc on the one side of fixed disk, the laser
Several laser pickoffs are provided on plate, each laser pickoff is identical with the distance between the axis of rotating disc.
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 wall surface is fixedly linked is more than the diameter of the other end, is 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
For busbar in temperature when environment change, slight change can occur for diameter, in order not to the connection to being used to fix busbar
Part causes stress concentration, be provided in jack the roll film roll film outer end can in the case where not stressing automatic rolling,
During 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, make it can not only be
Busbar it is interspersed lower with busbar compression, two halfbodies one after being bolted can fixation, roll film is made to furl to mother
Line compresses the number of turns needed, has 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, phase
The position being mutually bonded 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.
The fixed seating is located at matched fixed disk and fixation in the middle of two fixed disks, the rotating disc
The middle of seat.
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.
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, original state
Under receive the laser pickoff of the laser beam that laser emitter is sent and be denoted as initial laser receiver, busbar is in the initial state
Length for initial length, busbar phase when calculating and marking other laser pickoffs to receive the laser beam that laser emitter is sent
To the inclination angle under original state；During detection, start laser emitter, the laser for receiving the laser beam that laser emitter is sent connects
It is busbar distortion inclination angle under this state to receive the corresponding inclination angle of device, is by distance between fixed disk and rotating disc and the inclination angle
The difference of busbar initial length and bus length at this time can be calculated, which is busbar amount of tension.
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 in the present apparatus.
Fig. 3 is the sectional view of rotating disc in the present apparatus.
Fig. 4 is the planar structure schematic diagram of fixed disk in the present apparatus.
Fig. 5 is the sectional view of fixed disk in the present apparatus.
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；52、
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, three busbar a with fixed seat 21
It is fixedly linked, a circular fixed disk 22 is fixedly installed on end supporting rod 11, the middle part of fixed disk 22 is fixedly installed one
Connecting shaft 23, connecting shaft 23 connect a rotating disc 24, and being provided between rotating disc 24 and connecting shaft 23 can drive rotating disc 24 is opposite to connect
The torsional spring 47 that axis 23 rotates, busbar a is fixedly connected with fixed disk 22 and rotating disc 24, be uniformly arranged on fixed disk 22 there are three
Laser emitter 31, the generation path of laser emitter 31 is parallel with connecting shaft 23, is provided on rotating disc 24 and each Laser emission
31 corresponding laser pick-off structure of device；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 emits
Laser, and received by laser pickoff 33, each laser pickoff 33 corresponds to the opposite torsion of a fixed disk 22 and rotating disc 24
Gyration, the angle can be obtained when a certain laser pickoff 33 receives laser signal, be afraid of and rotating disc 24 due to fixed
Between spacing fixed, by the angle, the length of busbar a at this time can be calculated, with the busbar a long under original state
The difference of degree 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 stretching of busbar a
Amount, can also change the force way of busbar a, busbar a is made to bear the drawing force of relative equilibrium, avoid 52 both sides of fixed part
The pulling force that busbar a 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, and torsional spring 47 is arranged on avoidance
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 three are further opened on plate body one
Location hole 44,44 inner wall of location hole have the groove 45 of an indent, and it is spherical that two one 41 corresponding grooves 45 of halfbody form one
Annular groove 46, be additionally provided with a hemispheric hinged block 48 in location hole 44, two articulated joints can make up one and annular groove 46
The sphere of cooperation, offer on hinged block 48 allow busbar a by perforation 49, busbar a is fixedly linked with hinged block 48；It is 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
Turning, busbar a is worn at the place of being bent in order to prevent, is set there are two hinged block 48, and two hinged blocks 48 form a sphere,
It can be rotated in annular groove 46, 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 Slabs
Several laser pickoffs 33 are provided on 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 offers jack 62 corresponding with three busbar a on halfbody 2 61, have in jack 62 greater diameter than
The stepped hole 63 of jack 62 is provided with a roll film 64 in stepped hole 63, and 64 one end of roll film and the wall surface of the inner end of stepped hole 63 are consolidated
It is fixed to be connected, 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 64 is opened up
It is in a hollow cone column after opening.
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 a
Connector cause stress concentration, roll film 64 is provided in jack 62, the outer end of the roll film 64 can be in situation about not stressing
Lower automatic rolling, in interspersed busbar a, moreover it is possible to squeeze the roll film 64 and continue to furl, it is made to form the positioning of an annular after furling
Set makes it that can not only be compressed in the interspersed lower and busbar a of busbar a, and two halfbodies 1 can be consolidated after being bolted
It is fixed secured, roll film 64 is made to furl to busbar a the number of turns for compressing needs, there is cushion space, and busbar a fixations, additionally it is possible to
Prevent busbar a 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 furled
Afterwards, 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 fixes
The middle of seat 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 a
The tension equalizer 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, original state
Under receive the laser pickoff of the laser beam that laser emitter is sent and be denoted as initial laser receiver, busbar is in the initial state
Length for initial length, busbar phase when calculating and marking other laser pickoffs to receive the laser beam that laser emitter is sent
To the inclination angle under original state；During detection, start laser emitter, the laser for receiving the laser beam that laser emitter is sent connects
It is busbar distortion inclination angle under this state to receive the corresponding inclination angle of device, is by distance between fixed disk and rotating disc and the inclination angle
The difference of busbar initial length and bus length at this time can be calculated, 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 is led
The technical staff in domain can do various modifications or additions to described specific embodiment or replace in a similar way
Generation, but without departing from spirit of the invention or beyond the scope of the appended claims.
Claims (10)
1. the busbar in a kind of high tension distribution system stretches amount detecting device, which is characterized in that including three parallel busbares
(a), the present apparatus includes two radicle supporting rods (11) and a midfoot support bar (12), is fixedly installed on the midfoot support bar
There is a fixed seat (21), three busbares (a) are fixedly linked with fixed seat (21), are fixedly installed on the end supporting rod (11)
There is a circular fixed disk (22), a connecting shaft (23) is fixedly installed in the middle part of the fixed disk (22), the connecting shaft (23) is even
A rotating disc (24) is connect, rotating disc (24) can be driven with respect to connecting shaft by being provided between the rotating disc (24) and connecting shaft (23)
(23) torsional spring (47) of rotation, busbar (a) is fixedly connected with fixed disk (22) and rotating disc (24), on the fixed disk (22)
It is uniformly arranged there are three laser emitter (31), the generation path of the laser emitter (31) is parallel with connecting shaft (23), described
Laser pick-off structure corresponding with each laser emitter (31) is provided on rotating disc (24)；The rotating disc (24), which is located at, fixes
Disk (22) is close to the one side of busbar (a) fixed seat (21).
2. the busbar in a kind of high tension distribution system stretches amount detecting device according to claim 1, which is characterized in that described
Rotating disc (24) includes two halfbodies one (41), and the middle part of the plate body one offers a mounting hole (42), the connecting shaft (23)
It is plugged in mounting hole (42), there is the escape groove (43) of spiral on mounting hole (42) inner wall, the torsional spring (47) is set
In the escape groove (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, institute
It states and three location holes (44) is further opened on plate body one, groove (45) of location hole (44) inner wall with an indent, two
The corresponding groove of halfbody one (41) (45) forms a spherical annular groove (46), and a hemisphere is additionally provided in the location hole (44)
The hinged block (48) of shape, two articulated joints can make up a sphere with annular groove (46) cooperation, opened on the hinged block (48)
Equipped with allow busbar (a) by perforation (49), the busbar (a) is fixedly linked with hinged block (48)；The hinged block (48)
It is slidably connected in annular groove (46)；It is detachably connected between two halfbodies one (41) by bolt.
3. the busbar in a kind of high tension distribution system stretches amount detecting device according to claim 2, which is characterized in that this dress
The compression piece (5) further included with halfbody one (41) cooperation is put, the piece (5) that compresses has the compressed part being adapted to perforation (49)
(51) and with the medial surface of hinged block (48) fixed part (52) being adapted to, the inner surface of the compressed part (51) have to fixed part
(52) the inclined pawl in direction (53).
4. the busbar in a kind of high tension distribution system according to Claims 2 or 3 stretches amount detecting device, which is characterized in that
There are two bearing (54), the inner ring of the bearing (54) is arranged and is fixed on connecting shaft (23) tool, described on the connecting shaft (23)
Have on the outer ring of bearing (54) several raised (55), have on the side of the rotating disc (24) recessed with raised (55) cooperation
Mouthful.
5. the busbar in a kind of 1 or 2 or 3 high tension distribution system of claim stretches amount detecting device, feature exists
In, the laser pick-off structure includes being arranged on Laser Slabs (32) of the rotating disc (24) on the one side of fixed disk (22),
Be provided with several laser pickoffs (33) on the Laser Slabs (32), the axis of each laser pickoff (33) and rotating disc (24) it
Between distance it is identical.
6. the busbar in a kind of 1 or 2 or 3 high tension distribution system of claim stretches amount detecting device, feature exists
In the fixed turntable includes two halfbodies two (61), and fixation turntable and the connecting shaft (23) close to rotating disc (24) one side are fixed
It connects, jack (62) corresponding with three busbares (a) is offered on the halfbody two (61), is had always in the jack (62)
Footpath is more than the stepped hole (63) of jack (62), and a roll film (64), described roll film (64) one end are provided in the stepped hole (63)
It is fixedly linked with the wall surface of the inner end of stepped hole (63), and one end for being fixedly linked of the wall surface of roll film (64) and stepped hole (63)
Diameter is more than the diameter of the other end, is in a hollow cone column after roll film (64) expansion.
7. the busbar in a kind of high tension distribution system stretches amount detecting device according to claim 6, which is characterized in that described
The medial surface and lateral surface of roll film (64) are respectively provided with the teeth that can be engaged.
8. the busbar in a kind of high tension distribution system stretches amount detecting device according to claim 6, which is characterized in that described
Roll film (64) is made of metal material；The compression piece (5) is made of rubber material.
9. the busbar in a kind of 1 or 2 or 3 high tension distribution system of claim stretches amount detecting device, feature exists
In the fixed seat (21) is located at the middle of two fixed disks (22), and the rotating disc (24) is located at matched fixation
The middle of disk (22) and fixed seat (21).
10. the busbar in a kind of 1 or 2 or 3 high tension distribution system of claim stretches amount detecting device, feature exists
In the connecting shaft (23) is also fixedly connected between fixed seat (21).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711445294.9A CN108050951B (en) | 2017-12-27 | 2017-12-27 | Bus stretching amount detection system in high-voltage distribution system |
| CN201911058146.0A CN110763174B (en) | 2017-12-27 | 2017-12-27 | Bus stretching amount detection system in high-voltage distribution system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711445294.9A CN108050951B (en) | 2017-12-27 | 2017-12-27 | Bus stretching amount detection system in high-voltage distribution system |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911058146.0A Division CN110763174B (en) | 2017-12-27 | 2017-12-27 | Bus stretching amount detection system in high-voltage distribution system |
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| Publication Number | Publication Date |
|---|---|
| CN108050951A true CN108050951A (en) | 2018-05-18 |
| CN108050951B CN108050951B (en) | 2019-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711445294.9A Active CN108050951B (en) | 2017-12-27 | 2017-12-27 | Bus stretching amount detection system in high-voltage distribution system |
| CN201911058146.0A Active CN110763174B (en) | 2017-12-27 | 2017-12-27 | Bus stretching amount detection system in high-voltage distribution system |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911058146.0A Active CN110763174B (en) | 2017-12-27 | 2017-12-27 | Bus stretching amount detection system in high-voltage distribution system |
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| CN110763174A (en) | 2020-02-07 |
| CN108050951B (en) | 2019-12-06 |
| CN110763174B (en) | 2021-05-04 |
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