CN113991494B - Substation grounding wire moving platform - Google Patents

Substation grounding wire moving platform Download PDF

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Publication number
CN113991494B
CN113991494B CN202111449124.4A CN202111449124A CN113991494B CN 113991494 B CN113991494 B CN 113991494B CN 202111449124 A CN202111449124 A CN 202111449124A CN 113991494 B CN113991494 B CN 113991494B
Authority
CN
China
Prior art keywords
hydraulic
grounding wire
ground wire
arm
moving platform
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.)
Active
Application number
CN202111449124.4A
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Chinese (zh)
Other versions
CN113991494A (en
Inventor
宋晓军
陈若冰
王江力
贾继灏
高远
薛志国
孙兆磊
石超
赵明康
盛耀巍
刘奇峰
张秋霞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Super High Voltage Co Of State Grid Henan Electric Power Co
State Grid Corp of China SGCC
Original Assignee
Super High Voltage Co Of State Grid Henan Electric Power Co
State Grid Corp of China SGCC
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Super High Voltage Co Of State Grid Henan Electric Power Co, State Grid Corp of China SGCC filed Critical Super High Voltage Co Of State Grid Henan Electric Power Co
Priority to CN202111449124.4A priority Critical patent/CN113991494B/en
Publication of CN113991494A publication Critical patent/CN113991494A/en
Application granted granted Critical
Publication of CN113991494B publication Critical patent/CN113991494B/en
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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B3/00Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/34Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
    • B65H75/38Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/34Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
    • B65H75/38Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
    • B65H75/44Constructional details
    • B65H75/4481Arrangements or adaptations for driving the reel or the material
    • B65H75/4486Electric motors
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B5/00Non-enclosed substations; Substations with enclosed and non-enclosed equipment
    • H02B5/01Earthing arrangements, e.g. earthing rods
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00Handled material; Storage means
    • B65H2701/30Handled filamentary material
    • B65H2701/34Handled filamentary material electric cords or electric power cables

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Handcart (AREA)

Abstract

The invention belongs to the technical field of substation ground wire operating devices, and particularly relates to a substation ground wire moving platform, which comprises an electric operating mechanism for driving the whole device to walk, a ground wire retracting device positioned above the electric operating mechanism and a hydraulic lifting crank arm; the electric operating mechanism comprises two driving travelling wheels which are connected through a transmission shaft, and a supporting frame is arranged above the two driving travelling wheels; the ground wire winding and unwinding device comprises two support columns arranged on a support frame, a bearing seat is arranged on the support columns, the bearing seat is connected with a gear through a shaft, the gear is connected with a motor through a chain, and a ground wire disk mounting seat is arranged on a ground wire disk mounting plate; the hydraulic lifting crank arm comprises a telescopic crank arm mechanism, a hydraulic control mechanism and a hydraulic telescopic mechanism, wherein the hydraulic control mechanism and the hydraulic telescopic mechanism are arranged in a control box on the supporting frame, the hydraulic control mechanism is connected with the hydraulic telescopic mechanism, the hydraulic telescopic mechanism is connected with the telescopic crank arm mechanism, and the whole process of transporting, dismounting and winding the ground wire of the transformer substation is greatly reduced in labor intensity.

Description

Substation grounding wire moving platform
Technical Field
The invention belongs to the technical field of substation ground wire operating devices, and particularly relates to a substation ground wire moving platform.
Background
The switching operation often involves the installation and removal of the grounding wire, and the hanging of the grounding wire in the switching operation of the transformer substation is always manually hung. With the improvement of the power transmission voltage level in China, the height of the ground wire suspended during power overhaul is higher and higher, and the weight of the ground wire is correspondingly increased. The quantity of transformer personnel is increased, the quantity of transformer personnel is gradually reduced, the hanging point of the grounding wire of 500kV transformer substation equipment is too high, the corresponding 500kV grounding wire operating rod is as long as 7.5 meters, the weight is about 4kg, the three-in-one grounding wire fixed on the grounding wire hook is as heavy as 12kg, and the balance of the grounding wire operating rod is difficult to grasp by arms and wrist force of operation and maintenance personnel in the operation process, so that 3-4 operators are required to cooperate and consume longer time, only the high-altitude lifting vehicle can cooperate, however, the arrangement of the high-altitude lifting vehicle for specially hanging and dismantling the grounding wire wastes manpower and material resources, the efficiency is low, and a plurality of inconveniences are caused.
Patent document with publication number CN206797450U discloses an auxiliary storage device for a ground wire, comprising: auxiliary frame, snap ring and chucking device. The auxiliary frame body is used for supporting the grounding wire insulating rod. The snap ring is arranged on the auxiliary frame body, and one end of the snap ring is movably connected with the auxiliary frame body. The clamping device is arranged on the auxiliary frame body and used for clamping the other end of the clamping ring. The ground wire storage trolley comprises a storage box body, a framework and a ground wire auxiliary storage device, the ground wire is wound through a fixed insulating rod of the ground wire auxiliary storage device, the wound ground wire is collected into the storage trolley, so that the ground wire is conveniently stored, the device is designed for storing the ground wire, and the ground wire is not designed for connection of the ground wire, so that the function is single.
Disclosure of Invention
The invention aims to provide a transformer substation grounding wire moving platform aiming at the problems in the prior art, and the labor intensity of hanging wiring is reduced.
The technical scheme of the invention is as follows:
A transformer substation grounding wire moving platform comprises an electric operating mechanism for driving the whole device to walk, a grounding wire retracting device positioned above the electric operating mechanism and a hydraulic lifting crank arm; the electric operating mechanism comprises two driving travelling wheels and a driven travelling wheel, wherein the two driving travelling wheels are connected through a transmission shaft, and a supporting frame is arranged above the driving travelling wheels; the grounding wire winding and unwinding device comprises two supporting columns arranged on a supporting frame, bearing seats are arranged on the two supporting columns, any bearing seat is connected with a gear through a shaft, the gear is connected with a motor through a chain, one side, opposite to the two bearing seats, of the two bearing seats is connected with a grounding wire coil mounting plate through a shaft, and a grounding wire coil mounting seat is arranged on the grounding wire coil mounting plate; the hydraulic lifting crank arm comprises a telescopic arm mechanism, a hydraulic control mechanism and a hydraulic telescopic mechanism, wherein the hydraulic control mechanism and the hydraulic telescopic mechanism are positioned in a control box on the supporting frame, the hydraulic control mechanism is connected with the hydraulic telescopic mechanism, and the hydraulic telescopic mechanism is connected with the telescopic arm mechanism; the automatic walking device is characterized in that a handle support rod is arranged at one end, on the same side as the driven walking wheel, of the support frame, a handle and a hand brake for controlling the whole mobile platform to walk or not are arranged on the handle support rod, the hand brake is connected with any driving walking wheel, and the driven walking wheel is connected with the handle support rod.
Specifically, the driven walking wheel be located on the perpendicular of two initiative walking wheel central lines, braced frame below be provided with place the box of placing power setting and power controller, power equipment be connected with the transmission shaft electricity of initiative walking wheel.
Specifically, telescopic arm mechanism include an arm section of thick bamboo and one end is located the support arm in the arm section of thick bamboo, an arm section of thick bamboo and support arm between fasten through fastening bolt, fastening bolt's outside tip set up fastening bolt hand wheel.
Specifically, the hydraulic telescopic mechanism comprises a hydraulic cylinder and a piston rod, wherein one end of the piston rod extends into the hydraulic cylinder, and the other end of the piston rod is fixedly connected with the arm cylinder.
Specifically, the hydraulic telescopic mechanism is inclined, and the inclination angle is 30-75 degrees.
Specifically, the hydraulic control mechanism comprises a medium storage box and a power element which are positioned in a control box, wherein the medium storage box is respectively connected with a hydraulic cylinder through a feeding conveying pipe and a discharging conveying pipe, and two electromagnetic valves are respectively arranged on the feeding conveying pipe and the discharging conveying pipe in a double electromagnetic valve control mode.
Specifically, the lifting control handle used for controlling the expansion and contraction of the hydraulic expansion mechanism is arranged on the handle, and the lifting control handle is electrically connected with the power element.
Specifically, the power element is a hydraulic pump.
Specifically, the driven travelling wheel is a universal wheel.
The beneficial effects of the invention are as follows: the electric operating mechanism for driving the whole device to walk is similar to an electric tricycle chassis, the driving travelling wheel is connected with the motor through a gear and a chain, the driven travelling wheel can change the direction for the rotation of the outward wheel 360, the driving travelling wheel is controlled by a control switch for advancing and retreating, the power is a 48V direct current 20AH direct current storage battery, the operation is flexible and convenient, and the platform can carry a grounding wire at one time.
The hydraulic lifting crank arm used by the invention comprises a telescopic crank arm mechanism, a hydraulic control mechanism and a hydraulic telescopic mechanism, wherein the hydraulic control mechanism and the hydraulic telescopic mechanism are positioned in a control box on the supporting frame 1, the hydraulic control mechanism is connected with the hydraulic telescopic mechanism, the hydraulic telescopic mechanism is connected with the telescopic crank arm mechanism and is supported by the hydraulic telescopic mechanism, and the telescopic degree of the hydraulic telescopic mechanism is controlled through the hydraulic control mechanism, so that the lifting height of the telescopic crank arm mechanism is controlled, the operation is simple, and the control is accurate.
The ground wire winding and unwinding device comprises two supporting columns arranged on a supporting frame, the two supporting columns are respectively provided with a bearing seat, any bearing seat is connected with a motor through a shaft, the gear is connected with the motor through a chain, one side, opposite to the two bearing seats, of the two bearing seats is provided with a ground wire coil mounting plate through a shaft connection, the ground wire coil mounting plate is provided with a ground wire coil mounting seat, the winding and unwinding wires are connected with the motor through the chain, and the remote controller can be used for controlling the starting and stopping of the motor and the reverse rotation of the motor to achieve the purpose of winding or unwinding the ground wire.
Drawings
FIG. 1 is a schematic side elevational view of the present invention;
FIG. 2 is another side elevational schematic of the present invention;
Fig. 3 is a schematic structural view of the ground wire winding and unwinding device;
FIG. 4 is a schematic structural view of a telescopic arm mechanism; .
The hydraulic lifting device comprises a supporting frame 1, a hydraulic lifting crank arm 2, a gear 3, a handle support rod 4, a driving travelling wheel 5, a driven travelling wheel 6, a supporting upright post 7, a hand brake 8, a ground wire coil 9, a control box 10, a hydraulic cylinder 11, a piston rod 12, a lifting control handle 13, a motor 14, a fastening bolt hand wheel 15, a driving bearing seat 16, a driven bearing seat 17, a ground wire coil mounting plate 18, a ground wire coil mounting plate 19, a ground wire coil mounting seat 20, a supporting upright post 21, an arm cylinder 22, a supporting arm 23 and a chain 24.
Detailed Description
The technical scheme of the invention is described in detail below with reference to the accompanying drawings and the specific embodiments
Example 1
Fig. 1 and fig. 2 show schematic side structural views of a transformer substation grounding wire moving platform provided by the embodiment, which comprises an electric operating mechanism for driving the whole device to walk, a grounding wire receiving and releasing device positioned above the electric operating mechanism and a hydraulic lifting crank arm 2; the electric operating mechanism comprises two driving travelling wheels 5 and one driven travelling wheel 6, wherein the two driving travelling wheels 5 are connected through a transmission shaft, and a supporting frame 1 is arranged above the driving travelling wheels; the grounding wire winding and unwinding device comprises two support columns arranged on the support frame 1, wherein the two support columns are a first support column 7 and a second support column 21 respectively. Bearing seats are respectively arranged on the first support column 7 and the second support column 21, a driving bearing seat 16 and a driven bearing seat 17 are respectively arranged, the driving bearing seat 16 is connected with a gear 3 through a shaft, the gear 3 is connected with a motor 14 through a chain 24, the opposite sides of the two bearing seats are respectively provided with a ground wire coil mounting plate 18 and a ground wire coil mounting plate 19 through shaft connection, and the ground wire coil mounting plates 18 and 19 are respectively provided with a ground wire coil mounting seat 20 capable of placing a ground wire coil 9; the hydraulic lifting crank arm comprises a telescopic arm mechanism, a hydraulic control mechanism and a hydraulic telescopic mechanism, wherein the hydraulic control mechanism and the hydraulic telescopic mechanism are positioned in a control box 10 on the supporting frame 1, the hydraulic control mechanism is connected with the hydraulic telescopic mechanism, and the hydraulic telescopic mechanism is connected with the telescopic arm mechanism; the one end on the same side with the driven travelling wheel on the supporting frame 1 is provided with a handle supporting rod 4, the handle supporting rod 4 is provided with a handle and a hand brake 8 for controlling the whole mobile platform to walk or not, the hand brake 8 is connected with any driving travelling wheel 5, the driven travelling wheel 6 is connected with the handle supporting rod 4, the driven travelling wheel 6 is a universal wheel, and 360-degree rotation can realize flexible steering.
The driven travelling wheel 6 is positioned on the vertical line of the central lines of the two driving travelling wheels 5, a placing box for placing a power supply and a power supply controller is arranged below the supporting frame 1, and the power supply equipment is electrically connected with a transmission shaft of the driving travelling wheels 5.
The telescopic arm mechanism comprises an arm cylinder 22 and a supporting arm 23 with one end positioned in the arm cylinder 22, the arm cylinder 22 and the supporting arm 23 are fastened through a fastening bolt, and the outer end part of the fastening bolt is provided with a fastening bolt hand wheel 15.
The hydraulic telescopic mechanism comprises a hydraulic cylinder 11 and a piston rod 12 with one end extending into the hydraulic cylinder 11, and the other end of the piston rod 12 is fixedly connected with an arm cylinder 22. The hydraulic telescopic mechanism is in an inclined mode, and the inclination angle is 30-75 degrees. The hydraulic control mechanism comprises a medium storage box and a power element which are positioned in the control box 10, wherein the medium storage box is respectively connected with the hydraulic cylinder 11 through a feeding conveying pipe and a discharging conveying pipe, and two electromagnetic valves are respectively arranged on the feeding conveying pipe and the discharging conveying pipe in a double electromagnetic valve control mode. The hydraulic cylinder has an inner diameter of 50CM and an outer diameter of 60CM, and is controlled by 48V 800W double electromagnetic valves. The lifting control handle 13 for controlling the expansion and contraction of the hydraulic expansion mechanism is arranged on the handle, and the lifting control handle 13 is electrically connected with the power element. The power element is a hydraulic pump.
When the substation grounding wire moving platform provided by the invention is used for grounding wire operation, the moving platform is pushed to a place where the grounding wire needs to be connected; then, operating a remote controller of the motor 14, starting the motor 14 to rotate, releasing the ground wire on the ground wire coil, and installing a ground wire connection insulation pull rod on the support arm 23; thirdly, starting the lifting control handle 13 to control the extension of the hydraulic telescopic mechanism, and stopping the telescopic arm mechanism after the telescopic arm mechanism is lifted to a required height; fourthly, tightening a fastening bolt hand wheel 15 to fix the ground wire insulation pull rod and the supporting arm for ground wire operation; fifth, the lifting control handle 13 is started to control the hydraulic telescopic mechanism to retract the hydraulic telescopic mechanism to the original position; finally, the motor 14 is started to rotate reversely to wind the ground wire on the ground wire disc, and the tool is retracted, so that the ground wire connection work is completed.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical scheme of the present invention and are not limiting; while the invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present invention or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the invention, it is intended to cover the scope of the invention as claimed.

Claims (8)

1. The transformer substation grounding wire moving platform is characterized by comprising an electric operating mechanism for driving the whole device to walk, a grounding wire receiving and releasing device positioned above the electric operating mechanism and a hydraulic lifting crank arm (2); the electric operating mechanism comprises two driving travelling wheels (5) and a driven travelling wheel (6), wherein the two driving travelling wheels (5) are connected through a transmission shaft, and a supporting frame (1) is arranged above the driving travelling wheels; the grounding wire winding and unwinding device comprises two supporting columns arranged on a supporting frame (1), bearing seats are arranged on the two supporting columns, any bearing seat is connected with a gear (3) through a shaft, the gear (3) is connected with a motor (14) through a chain (24), one side, opposite to the two bearing seats, of the two bearing seats is connected with a grounding wire coil mounting plate through a shaft, and a grounding wire coil mounting seat is arranged on the grounding wire coil mounting plate;
The hydraulic lifting crank arm comprises a telescopic arm mechanism, a hydraulic control mechanism and a hydraulic telescopic mechanism, wherein the hydraulic control mechanism and the hydraulic telescopic mechanism are positioned in a control box (10) on the supporting frame (1), the hydraulic control mechanism is connected with the hydraulic telescopic mechanism, and the hydraulic telescopic mechanism is connected with the telescopic arm mechanism;
a handle support rod (4) is arranged at one end, on the same side as the driven travelling wheel, of the support frame (1), a handle and a hand brake (8) for controlling whether the whole mobile platform walks or not are arranged on the handle support rod (4), the hand brake (8) is connected with any driving travelling wheel (5), and the driven travelling wheel (6) is connected with the handle support rod (4);
The telescopic arm mechanism comprises an arm cylinder (22) and a supporting arm (23) with one end positioned in the arm cylinder (22), the arm cylinder (22) and the supporting arm (23) are fastened through a fastening bolt, and a fastening bolt hand wheel (15) is arranged at the outer end part of the fastening bolt.
2. The transformer substation grounding wire moving platform according to claim 1, wherein the driven travelling wheels (6) are positioned on the vertical lines of the central lines of the two driving travelling wheels (5), a placing box for placing power supply equipment and a power supply controller is arranged below the supporting frame (1), and the power supply equipment is electrically connected with a transmission shaft of the driving travelling wheels (5).
3. The transformer substation grounding wire moving platform according to claim 1, wherein the hydraulic telescopic mechanism comprises a hydraulic cylinder (11) and a piston rod (12) with one end extending into the hydraulic cylinder (11), and the other end of the piston rod (12) is fixedly connected with the arm cylinder (22).
4. A substation grounding wire moving platform according to claim 3, wherein said hydraulic telescopic mechanism is inclined at an angle of 30 ° -75 °.
5. A transformer substation grounding wire moving platform according to claim 3, characterized in that the hydraulic control mechanism comprises a medium storage box and a power element which are positioned in the control box (10), the medium storage box is respectively connected with the hydraulic cylinder (11) through a feeding conveying pipe and a discharging conveying pipe, and two electromagnetic valves are respectively arranged on the feeding conveying pipe and the discharging conveying pipe in a double electromagnetic valve control mode.
6. The transformer substation grounding wire moving platform according to claim 5, wherein a lifting control handle (13) for controlling the telescopic action of the hydraulic telescopic mechanism is arranged on the handle, and the lifting control handle (13) is electrically connected with the power element.
7. The substation grounding connection mobile platform of claim 6, wherein said power element is a hydraulic pump.
8. The transformer substation grounding wire moving platform according to claim 1, characterized in that the driven travelling wheel (6) is a universal wheel.
CN202111449124.4A 2021-11-30 2021-11-30 Substation grounding wire moving platform Active CN113991494B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111449124.4A CN113991494B (en) 2021-11-30 2021-11-30 Substation grounding wire moving platform

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111449124.4A CN113991494B (en) 2021-11-30 2021-11-30 Substation grounding wire moving platform

Publications (2)

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CN113991494A CN113991494A (en) 2022-01-28
CN113991494B true CN113991494B (en) 2024-07-02

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Application Number Title Priority Date Filing Date
CN202111449124.4A Active CN113991494B (en) 2021-11-30 2021-11-30 Substation grounding wire moving platform

Country Status (1)

Country Link
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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107482329A (en) * 2017-07-11 2017-12-15 国家电网公司 One kind is easily grounded operating platform

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN214626112U (en) * 2021-04-29 2021-11-05 国网山西省电力公司太原供电公司 Telescopic pulley ground wire car

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107482329A (en) * 2017-07-11 2017-12-15 国家电网公司 One kind is easily grounded operating platform

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Country or region after: China

Address after: No. 70 Tengda Road, Zhengzhou Area (Economic Development Zone), Zhengzhou Pilot Free Trade Zone, Henan Province, 450000

Applicant after: Super high voltage company of State Grid Henan Electric Power Co.

Applicant after: STATE GRID CORPORATION OF CHINA

Address before: No.40 Huaihe Road, Zhongyuan District, Zhengzhou City, Henan Province

Applicant before: MAINTENANCE COMPANY OF STATE GRID HENAN ELECTRIC POWER Co.

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Applicant before: STATE GRID CORPORATION OF CHINA

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