CN110429514A - Automatic sag detection and wire tightening system for overhead transmission line - Google Patents
Automatic sag detection and wire tightening system for overhead transmission line Download PDFInfo
- Publication number
- CN110429514A CN110429514A CN201910659676.4A CN201910659676A CN110429514A CN 110429514 A CN110429514 A CN 110429514A CN 201910659676 A CN201910659676 A CN 201910659676A CN 110429514 A CN110429514 A CN 110429514A
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- stringing
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- remote control
- conducting wire
- arc sag
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- 238000001514 detection method Methods 0.000 title claims abstract description 39
- 230000005540 biological transmission Effects 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 17
- 238000004891 communication Methods 0.000 claims abstract description 13
- 238000012360 testing method Methods 0.000 claims abstract description 8
- 238000010276 construction Methods 0.000 abstract description 9
- 239000004020 conductor Substances 0.000 abstract description 8
- 238000013102 re-test Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 6
- 238000007665 sagging Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000003128 head Anatomy 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 210000005252 bulbus oculi Anatomy 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
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- 210000001508 eye Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- 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
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
- H02G1/04—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables for mounting or stretching
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electric Cable Installation (AREA)
Abstract
The invention discloses an automatic sag detection and stringing system for an overhead power transmission line, which comprises a wireless remote control trolley, a satellite positioning system and a stringing device, wherein the wireless remote control trolley walks on a wire to be detected and is provided with a satellite receiving device for receiving position information sent by the satellite positioning system; a wireless communication system is arranged on the wireless remote control trolley; a wire tightening actuator for taking up and paying off the wire; a control station located on the ground; the control station sends a moving instruction to be transmitted to the wireless remote control trolley through the wireless communication system, and the wireless remote control trolley is controlled to move to a test position; the wireless remote control trolley acquires position information and transmits the position information to the control station; and the control station processes the position information of the position to be detected, calculates a sag value, compares the calculated sag value with a target sag in the control station, and then sends a wire tightening instruction to control the wire tightening actuator to take up and pay off wires. The invention realizes real-time automatic on-line detection and automatic wire tightening of the conductor sag, and can also be used for more refined retest of the conductor which is subjected to wire tightening operation on a construction site.
Description
Technical field
The present invention relates to a kind of automatic arc sag detection of overhead transmission line and stringing systems, belong to power construction engineering technology
Field.
Background technique
Overhead transmission line is the main artery of power industry, is the important component of electric system.Transmission line wire
Sagging formation arc curve, sagging amplitude are known as arc sag between adjacent shaft tower.Arc sag size and span, conductor length, are led height difference
Stress suffered by line weight, conducting wire is related, and the natural causes such as temperature, wind, ice and snow also have an impact it.To overhead transmission line into
The accurate observation of row arc sag and guides wire stringing operation until reaching target arc sag, is to ensure that the significant process of construction quality.
Basic theories based on the conducting wire sag calculating of overhead transmission line is very mature.Due to conducting wire two hitch points it
Between distance it is very big, the rigidity of conductor material, which hangs on aerial geometry to electric wire, influences very little, so can be assumed that is one
Root hinged soft chain everywhere, meets " catenary " formula.One aerial conducting wire need to only be given based on theory approximation
Determine two hitch points of conducting wire and the coordinate of intermediate certain point, so that it may determine the shape of the conducting wire, can also derive the conducting wire
Arc sag.
After the completion of wire stringing operation, if the arc sag of conducting wire and target value deviation are excessive, the operation band of subsequent transmission line of electricity will be given
Carry out many hazards: if sag value is too small, the stress of conductor of tension is big, if temperature reduces, conducting wire can be forced further elongation very
To breaking.Especially under the conditions of southern sleet calamitous climate, shaft tower is easy to happen lodging risk；If sag value is too big, to by across
More object safe distance is insufficient, and by multifactor impacts such as systems stay overvoltage, high temperature and heavy loads, conducting wire can occur to put certainly
It is dynamic, to discharge with conducting wire with respect between shaft tower between causing conducting wire；Under the adverse weather conditions such as strong wind typhoon, conducting wire meeting
The swing for exceeding its allowed band occurs, causes conducting wire mutual whiplash damage and stranded with shaft tower coupling part harness damage.
In the work progress of domestic overhead transmission line conductor, every phase sub-conductor is using artificial sag observation and artificial
The mode of stringing.Manual type carries out sag observation and the process of stringing is: artificial eye passes through piece conducting wire of theodolite observation
Minimum point, calculate arc sag and compared to determine with the arc sag table that provides of design, will be current by intercom by commanding
Arc sag situation is communicated to the stringing personnel of distant place, and stringing personnel lead this using actuator (being such as twisted, Lever Blocks tool)
Line is tightened or is loosened.General job process will be conveyed by more multiple artificial observation arc sag, information, stringing executes
It back and forth, could be in the sag adjustment to target zone of conducting wire.On the one hand, artificial observation arc sag is vulnerable to landform, sighting condition etc.
Aspect limitation, and observed result depends directly on the Heuristics of Observation personnel, instrumentation technical ability, operation process preciseness etc.
Human factor is lack of consistency and authority；On the other hand, artificial wire stringing operation not only needs multiple personnel, and expend physical strength,
With certain operating risk, also need manually to step on tower operation sometimes.Existing arc sag detection and stringing process are to detection environment
Condition is more demanding, and under the poor situation of visibility, artificial observation arc sag and wire stringing operation can not carry out；Make needed for artificial stringing
Industry personnel are more, and difficulty is larger, relatively high to the skill requirement of Observation personnel, and manage site safety more demanding；Arc sag
Observation personnel need to grasp the working method of artificial observation by system training, and the sag observation personnel having wide experience at present are expert at
It is more in short supply in the industry, and the arc sag data deficiency objectivity and consistency of artificial observation.
Summary of the invention
It is an object of the invention to overcome in the prior art arc sag detection and stringing process efficiency it is lower, detection by environment because
Element influence, deficiency more demanding to testing staff, with certain operating risk, provide a kind of automatic arc of overhead transmission line
Vertical detection and stringing system, technical solution are as follows:
The automatic arc sag detection of overhead transmission line and stringing system,
Including the wireless remote control trolley being set on conducting wire to be measured of walking, wireless remote control trolley, which is equipped with, receives global position system
The satellite receiver of the location information of sending；Wireless communication system is set on wireless remote control trolley；The stringing of folding and unfolding conducting wire is held
Row device；Control station positioned at ground；
Control station issues move, and system is transmitted to wireless remote control trolley by wireless communication, and control wireless remote control trolley is mobile
To test position；
Wireless remote control trolley obtains the location information at test position and system is transmitted to control station by wireless communication；
Control station calculates sag value after treating the position information process at the location place of setting, and will calculate the target in sag value and control station
After arc sag is compared, control station sends stringing instruction control stringing actuator folding and unfolding conducting wire.
Further, stringing actuator and controller data transmission connect, and receive folding and unfolding conducting wire after stringing instruction.
Preferably, stringing actuator and controller wire transmission.
Preferably, stringing actuator and controller are wirelessly transferred.
Further, global position system is high-precision Beidou high-tech satellite, provides more star signals.
Further, wireless remote control trolley is equipped with visits for the high accuracy positioning of detection wireless remote operated vehicle location information
Gauge head.
Further, control station further includes the man-machine interface for showing conducting wire current location arc sag detected value.
Further, control station includes arc sag standard database query module and data-interface.
Further, stringing actuator is program-controlled stringing actuator.
Further, position to be measured includes the hitch point of at least one end of conducting wire and the midpoint of conducting wire.
Compared with prior art, advantageous effects of the invention:
The present invention carries out real-time online detection to the conducting wire sag of overhead transmission line, and current real-time arc is calculated by controller
It hangs down and is worth, calculate the difference between target sag value, and then arc sag is adjusted to target sag value, arc sag by stringing actuator
Automatic detection and automatic stringing, it may also be used for answer at the construction field (site) what the conducting wire for having completed wire stringing operation was more refined
It surveys.
Detailed description of the invention
Fig. 1 is arc sag detection operation principle schematic diagram；
Fig. 2 is arc sag overhaul flow chart of the invention；
In figure: 1- shaft tower, 2- conducting wire, 3- wireless remote control trolley, 31- satellite receiver, 4- global position system, 5- control
It stands, 6- stringing actuator.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and not intended to limit the protection scope of the present invention.
As depicted in figs. 1 and 2, the automatic arc sag detection of overhead transmission line and stringing system,
Including the wireless remote control trolley 3 being set on conducting wire 2 to be measured of walking, wireless remote control trolley 3, which is equipped with, receives satellite positioning
The satellite receiver 31 for the location information that system 4 issues；Wireless communication system is set on wireless remote control trolley 3；Folding and unfolding conducting wire
Stringing actuator 6；Control station 5 positioned at ground；
Control station 5 issues move, and system is transmitted to wireless remote control trolley 3 by wireless communication, controls wireless remote control trolley 3
It is moved to test position；
Wireless remote control trolley 3 obtains the location information at test position and system is transmitted to control station 5 by wireless communication；Transmission of electricity
Line conductor 2 sagging formation arc curve, sagging amplitude between adjacent shaft tower 1 are known as arc sag；The present invention is in transmission line construction
The arc sag of conducting wire 2 is carried out in erection process to continue real-time measurement, satellite receiver 31 receives satellite-signal, and obtains itself
Location information, that is, coordinate data.
Control station 5 calculates sag value after treating the position information process at the location place of setting, and will calculate in sag value and control station 5
Target arc sag be compared after, control station 5 send stringing instruction control 6 folding and unfolding conducting wire of stringing actuator.Calculating sag value is
The current arc sag of conducting wire present position, control station 5 obtain difference between the two by comparing calculation sag value and target arc sag, send out
It send stringing to instruct to conducting wire 2 being tightened or be loosened by the stringing actuator 6 of process control, and finally makes to calculate arc sag
It is worth consistent with target arc sag.
Specifically, stringing actuator 6 and the transmission of 5 data of controller connect, and receive folding and unfolding conducting wire after stringing instruction.
Stringing actuator 6 and controller 5 are wirelessly transferred.Wireless transmission uses radio station.
Specifically, global position system 4 is high-precision Beidou high-tech satellite, provides more star signals.
Specifically, wireless remote control trolley 3 is equipped with visits for the high accuracy positioning of 3 location information of detection wireless remote operated vehicle
Gauge head.Reach arc sag detection accuracy index, the coordinate bit that can be obtained dependent on the detecting head run with wireless remote control trolley 3
Set precision, it can be achieved that Centimeter Level precision, it is sufficient to meet 2 arc sag of conducting wire detection requirement.
Specifically, control station 5 further includes the man-machine interface for showing 2 current location arc sag detected value of conducting wire.
Specifically, control station 5 includes arc sag standard database query module and data-interface.Control station 5 is a set of portable
Inserted computer software and hardware system that is easy-to-use and being suitable for construction site can not only be acquired by processing global position system 4
Data carry out automation take-up wire stringing operation, arc sag normal data to obtain current arc sag, send instruction control stringing actuator 6
Centralized management and standardization of the library inquiry module convenient for development construction operation.Complete sets of products and technology of the invention remarkably promotes frame
Process quality control, the standardized work of line construction.
Specifically, stringing actuator 6 is program-controlled stringing actuator.
Specifically, position to be measured includes the hitch point of at least one end of conducting wire and the midpoint of conducting wire 2.
Arc sag detection process is as follows:
The first arc sag detection method, it is outstanding that the high-precision satellite receiver 31 on wireless remote control trolley 3 obtains 2 both ends of conducting wire
The coordinate data of hanging point, then control station 5 controls satellite receiver 31 and is moved to conducting wire 2 in water with wireless remote control trolley 3
The midpoint of flat projecting direction obtains the altitude data of the midpoint, then the altitude data of comprehensive two hitch points can lead to
The in house software for crossing control station 5 carries out the detection sag value that processing obtains current conducting wire 2 to position data is measured.If wireless remote control
Trolley 3 deviates from the plan-position, and control station 5 will issue instruction, and system is transferred to wireless remote control trolley 3 and makes by wireless communication
It is walked and returns to the position.Arc sag detection of the invention and stringing system are independent of catenary calculation formula
Directly measure more accurate 2 sag value of conducting wire.The present invention can directly be obtained by global position system 4 locating on 2 profile of conducting wire
Coordinate data at position, and can be used for the arc sag and automatic stringing of real-time measurement conducting wire 2.
Another detection method is then the working efficiency to promote live arc sag detection.Only by obtaining the single-ended of conducting wire 2
The coordinate data of eyeball among hitch point and some partial conducting wire 2, and combine the conducting wire 2 in control station 5 in the actual measurement
The design span of point, then carries out the estimation of sag value using catenary calculation formula, is a kind of indirect arc sag detection, but
Since the accuracy of the actual measurement point coordinate data among hitch point and conducting wire 2 is high, the 2 arc sag data of conducting wire estimated
Still better than artificial observation.
The present invention realizes the automatic arc sag detection to conducting wire 2, control station 5, wireless remote control trolley 3 and global position system
After 4 complete the actual measurement or estimation of arc sag, compared with the target arc sag prestored inside control station 5.If 2 arc sag of current conducting wire
Greater than target arc sag, then line of feeling nervous is tightened to stringing actuator 6；It is executed conversely, then sending loose ends and instructing to stringing
Device is loosened.Control station 5 persistently carries out the detection and update of 2 arc sag of conducting wire, directly in the dynamic process of stringing actuator 6
It coincide to the arc sag and target arc sag currently measured.Realize real-time online detection arc sag and stringing, final adjustment is to reach target
Sag value.The man-machine interface of sag value also is detected with 2 current location of real-time display conducting wire on control station 5, and passes through comparison
Detect sag value and target sag value, by the internal processes of control station 5 control stringing actuator 6 to conducting wire 2 carry out tightening or
Loosen, realize unmanned automatic stringing, until conducting wire 2 reaches target sag value.In actual use, stringing actuator 6 and control
Data communication between device 5 processed can also use wire transmission.
At the same time, system of the invention can be used at the construction field (site) carrying out more the conducting wire 2 for having completed wire stringing operation
The repetition measurement of fining: the wireless remote control trolley 3 walked on conducting wire 2 is equipped with high accuracy positioning detecting head, and high accuracy positioning is visited
Gauge head persistently provides changing coordinates data, and wireless remote control trolley 3 covers entire span on conducting wire 2, can be obtained entire conducting wire 2
Track data, and the extension profile that curve matching mode draws out whole conducting wire 2 can be used.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. the automatic arc sag detection of overhead transmission line and stringing system, which is characterized in that
Including the wireless remote control trolley being set on conducting wire to be measured of walking, the wireless remote control trolley, which is equipped with, receives satellite positioning
The satellite receiver for the location information that system issues；Wireless communication system is set on the wireless remote control trolley；Folding and unfolding conducting wire
Stringing actuator；Control station positioned at ground；
The control station issues move and is transmitted to the wireless remote control trolley by the wireless communication system, described in control
Wireless remote control trolley is moved to test position；
The wireless remote control trolley obtains the location information at test position and is transmitted to by the wireless communication system described
Control station；
The control station calculates sag value after treating the position information process at the location place of setting, by the calculating sag value and the control
After target arc sag in system station is compared, the control station sends stringing instruction and controls the stringing actuator folding and unfolding conducting wire.
2. automatic arc sag detection according to claim 1 and stringing system, which is characterized in that the stringing actuator and institute
Controller data transmission connection is stated, folding and unfolding conducting wire after the stringing instruction is received.
3. automatic arc sag detection according to claim 2 and stringing system, which is characterized in that the stringing actuator and institute
State controller wire transmission.
4. automatic arc sag detection according to claim 2 and stringing system, which is characterized in that the stringing actuator and institute
State controller wireless transmission.
5. automatic arc sag detection according to claim 1 and stringing system, which is characterized in that the global position system is
High-precision Beidou high-tech satellite, provides more star signals.
6. automatic arc sag detection according to claim 1 and stringing system, which is characterized in that on the wireless remote control trolley
Equipped with the high accuracy positioning detecting head for detecting the wireless remote control trolley location information.
7. automatic arc sag detection according to claim 1 and stringing system, which is characterized in that the control station further includes showing
Show the man-machine interface of conducting wire current location arc sag detected value.
8. automatic arc sag detection according to claim 1 and stringing system, which is characterized in that the control station includes arc sag
Standard database query module and data-interface.
9. automatic arc sag detection according to claim 1 and stringing system, which is characterized in that the stringing actuator is journey
Control stringing actuator.
10. automatic arc sag detection according to claim 1 and stringing system, which is characterized in that the position to be measured includes
The hitch point of at least one end of conducting wire and the midpoint of conducting wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910659676.4A CN110429514A (en) | 2019-07-22 | 2019-07-22 | Automatic sag detection and wire tightening system for overhead transmission line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910659676.4A CN110429514A (en) | 2019-07-22 | 2019-07-22 | Automatic sag detection and wire tightening system for overhead transmission line |
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| CN110429514A true CN110429514A (en) | 2019-11-08 |
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| CN201910659676.4A Pending CN110429514A (en) | 2019-07-22 | 2019-07-22 | Automatic sag detection and wire tightening system for overhead transmission line |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112146626A (en) * | 2020-08-17 | 2020-12-29 | 国网河北省电力有限公司邯郸市肥乡区供电分公司 | Overhead line sag value measuring device and method |
| CN112436435A (en) * | 2020-11-12 | 2021-03-02 | 福建省宏闽电力工程监理有限公司 | Overhead transmission line tightening construction method |
| CN112448319A (en) * | 2020-11-12 | 2021-03-05 | 福建省宏闽电力工程监理有限公司 | Power transmission line construction line tightening early warning method |
| CN112577455A (en) * | 2020-12-02 | 2021-03-30 | 贵州送变电有限责任公司 | Stringing sag monitoring device based on Beidou high-precision positioning system |
| CN112833764A (en) * | 2021-01-08 | 2021-05-25 | 安徽送变电工程有限公司 | Sag measurement system, method and device based on Beidou positioning and laser radar |
| CN114322785A (en) * | 2021-12-01 | 2022-04-12 | 浙江省送变电工程有限公司 | Power transmission line multi-bundle conductor sag detection device and detection and adjustment method |
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| JPH0471307A (en) * | 1990-07-10 | 1992-03-05 | Furukawa Electric Co Ltd:The | Method of tightening transmission line |
| CN202395385U (en) * | 2012-01-10 | 2012-08-22 | 安徽送变电工程公司 | Sag observation remote control travelling trolley based on global positioning system (GPS) positioning technique |
| CN109060215A (en) * | 2018-08-08 | 2018-12-21 | 云南电网有限责任公司昆明供电局 | A kind of transmission and distribution line stringing instrument |
| CN109489536A (en) * | 2018-04-19 | 2019-03-19 | 国网浙江省电力有限公司金华供电公司 | A kind of power transmission line sag automatic checkout system and method |
| CN210723977U (en) * | 2019-07-22 | 2020-06-09 | 江苏省送变电有限公司 | Automatic sag detection and wire tightening system for overhead transmission line |
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2019
- 2019-07-22 CN CN201910659676.4A patent/CN110429514A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0471307A (en) * | 1990-07-10 | 1992-03-05 | Furukawa Electric Co Ltd:The | Method of tightening transmission line |
| CN202395385U (en) * | 2012-01-10 | 2012-08-22 | 安徽送变电工程公司 | Sag observation remote control travelling trolley based on global positioning system (GPS) positioning technique |
| CN109489536A (en) * | 2018-04-19 | 2019-03-19 | 国网浙江省电力有限公司金华供电公司 | A kind of power transmission line sag automatic checkout system and method |
| CN109060215A (en) * | 2018-08-08 | 2018-12-21 | 云南电网有限责任公司昆明供电局 | A kind of transmission and distribution line stringing instrument |
| CN210723977U (en) * | 2019-07-22 | 2020-06-09 | 江苏省送变电有限公司 | Automatic sag detection and wire tightening system for overhead transmission line |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112146626A (en) * | 2020-08-17 | 2020-12-29 | 国网河北省电力有限公司邯郸市肥乡区供电分公司 | Overhead line sag value measuring device and method |
| CN112146626B (en) * | 2020-08-17 | 2022-04-15 | 国网河北省电力有限公司邯郸市肥乡区供电分公司 | Overhead line sag value measuring device and method |
| CN112436435A (en) * | 2020-11-12 | 2021-03-02 | 福建省宏闽电力工程监理有限公司 | Overhead transmission line tightening construction method |
| CN112448319A (en) * | 2020-11-12 | 2021-03-05 | 福建省宏闽电力工程监理有限公司 | Power transmission line construction line tightening early warning method |
| CN112577455A (en) * | 2020-12-02 | 2021-03-30 | 贵州送变电有限责任公司 | Stringing sag monitoring device based on Beidou high-precision positioning system |
| CN112833764A (en) * | 2021-01-08 | 2021-05-25 | 安徽送变电工程有限公司 | Sag measurement system, method and device based on Beidou positioning and laser radar |
| CN112833764B (en) * | 2021-01-08 | 2021-11-23 | 安徽送变电工程有限公司 | Sag measurement system, method and device based on Beidou positioning and laser radar |
| CN114322785A (en) * | 2021-12-01 | 2022-04-12 | 浙江省送变电工程有限公司 | Power transmission line multi-bundle conductor sag detection device and detection and adjustment method |
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Address after: 211102 No. 280 Heyan Road, Nanjing, Jiangsu Applicant after: JIANGSU POWER TRANSMISSION AND DISTRIBUTION Co.,Ltd. Applicant after: JINHUA BOTENG TECHNOLOGY Co.,Ltd. Applicant after: STATE GRID JIANGSU ELECTRIC POWER Co.,Ltd. Applicant after: STATE GRID CORPORATION OF CHINA Address before: No.58-5, Suyuan Avenue, Nanjing, Jiangsu, 211102 Applicant before: JIANGSU POWER TRANSMISSION AND DISTRIBUTION Co.,Ltd. Applicant before: JINHUA BOTENG TECHNOLOGY Co.,Ltd. Applicant before: STATE GRID JIANGSU ELECTRIC POWER Co.,Ltd. Applicant before: STATE GRID CORPORATION OF CHINA |