CN110768153A - Lower isolation belt ground knife fixed high-voltage ring main unit structure - Google Patents
Lower isolation belt ground knife fixed high-voltage ring main unit structure Download PDFInfo
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- CN110768153A CN110768153A CN201911083816.4A CN201911083816A CN110768153A CN 110768153 A CN110768153 A CN 110768153A CN 201911083816 A CN201911083816 A CN 201911083816A CN 110768153 A CN110768153 A CN 110768153A
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- 238000002955 isolation Methods 0.000 title claims abstract description 35
- 238000009434 installation Methods 0.000 claims abstract description 10
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 3
- 230000000007 visual effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor
- H02B1/04—Mounting thereon of switches or of other devices in general, the switch or device having, or being without, casing
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/16—Earthing arrangements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
- H02B1/202—Cable lay-outs
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/38—Hinged covers or doors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Gas-Insulated Switchgears (AREA)
- Patch Boards (AREA)
Abstract
A lower isolation belt grounding switch fixed high-voltage ring main unit structure comprises a high-voltage ring main unit, a support plate, a first installation component, a second installation component, a first cabinet door, a second cabinet door, a hinge, an operation mechanism and a third cabinet door, wherein the support plate is fixedly welded on the inner wall of the middle part of one side of the high-voltage ring main unit; under the condition of meeting the high-voltage electrical distance, the compact element structure arrangement is designed, and the occupied area of the electric room is effectively saved due to the compression of the width of the cabinet; the isolating knife has a visual lower isolating fracture when being switched off, the operation mechanism realizes the switching-off and switching-on operation of the fracture, and simultaneously realizes the mechanical linkage with the circuit breaker to meet the five-prevention requirement; the structure of the device efficiently utilizes space, and the device is reasonable in design and layout, safe and reliable.
Description
Technical Field
The invention relates to the technical field of high-voltage power distribution devices, in particular to a lower isolation belt grounding knife fixed high-voltage ring main unit structure.
Background
The structure of the power distribution equipment is an important component of the mechanical industry, which is an important power transmission and distribution equipment of the power industry, and has close relationship with national economy and social development, the manufacturing industry of high-voltage switch equipment in China is rapidly developed, and the high-voltage ring main unit is one of the power distribution equipment, which can improve the power supply reliability, so that a user can obtain power sources from two directions, and usually connects a power supply network into a ring shape, the power supply mode is called ring network power supply for short, in an alternating current 10KV power distribution system such as ports and high-rise buildings, because the load capacity is small, a high-voltage loop of the power supply equipment is usually controlled by a load switch or a vacuum contactor and is provided with a high-voltage fuse protector for protection, but the traditional high-voltage fixed cabinet for power distribution has the conditions of large switch cabinet volume; with the continuous progress of science, the electric elements also begin to have the characteristics of intensification, modularization, miniaturization and the like, so the requirement on the volume of equipment is increased, the volume needs to be reduced, the maintenance is not safe and reliable enough, the use is not simple and practical enough, and the working efficiency of workers cannot be improved.
Disclosure of Invention
The invention aims to provide a lower isolation belt and ground knife fixed high-voltage ring main unit structure to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: a lower isolation belt ground knife fixed type high-voltage ring main unit structure comprises a high-voltage ring main unit, a supporting plate, a first mounting assembly, a second mounting assembly, a first cabinet door, a second cabinet door, a hinge, an operating mechanism and a third cabinet door, wherein the supporting plate is fixedly welded on the inner wall of the middle part of one side of the high-voltage ring main unit, and the first mounting assemblies are fixedly arranged on the outer walls of the two sides of the supporting plate;
the first installation assembly comprises a first compact circuit breaker, a first isolation knife, a first current transformer, a first fully-insulated lightning arrester, a first fusible core, a first voltage transformer and a first outgoing cable, the first compact circuit breaker is fixedly welded on the outer wall of the top end of the support plate positioned on one side of the main body of the high-voltage ring main unit, the first isolation knife is connected on the outer wall of the top end of the support plate positioned on the other side of the main body of the high-voltage ring main unit through a bolt, the first fusible core is installed on the inner wall of the bottom end of the support plate of the main body of the high-voltage ring main unit, the top end of the first fusible core is in contact connection with the outer wall of the bottom end of the first isolation knife, the first voltage transformer is fixed on the inner wall of the bottom end of the first fusible core through a bolt, the first current transformer is connected on the inner wall of the main body of the high-voltage ring main unit positioned on one side of the first fusible core, a first all-insulated lightning arrester is fixedly welded on the inner wall of the high-voltage ring main unit, which is positioned at the bottom end of the first current transformer, a first outgoing cable is fixedly arranged on the inner wall of the bottom end of the high-voltage ring main unit, which is positioned at one side of the first all-insulated lightning arrester, and a second mounting assembly is fixedly arranged on the inner wall of one side of the other high-voltage ring main unit;
the second mounting assembly comprises a second isolating knife, a second compact circuit breaker, a second current transformer, a second fully insulated lightning arrester, a second fusible core, a second voltage transformer and a second outgoing cable, a second isolating knife is connected on the inner wall of the top end of the other high-voltage ring main unit through a bolt, a second compact circuit breaker is arranged on the inner wall of one side of the high-voltage ring main unit, the inner wall of the high-voltage ring main unit body, which is positioned at the bottom end of the second compact circuit breaker, is connected with a second fusible core through a bolt, a second voltage transformer is fixed on the inner wall of the high-voltage ring main unit body, which is positioned at the bottom end of the second fusible core, a second current transformer is fixed on the inner wall of one side of the high-voltage ring main unit opposite to the high-voltage ring main unit, a second all-insulated arrester is welded and fixed on the inner wall of the bottom end of the high-voltage ring main unit, and a second outgoing cable is arranged on the inner wall of the bottom end of the high-voltage ring main unit body, which is positioned on one side of the second all-insulated lightning arrester.
Furthermore, a first cabinet door is rotatably connected to the outer wall of one side of the high-voltage ring main unit through a hinge, and an operating mechanism is connected to the outer wall of one side of the first cabinet door in an embedded manner.
Furthermore, the high-voltage ring main unit is connected with a second cabinet door through a hinge in a rotating manner on the outer wall of the top end of the first cabinet door.
Furthermore, a third cabinet door is rotatably connected to the outer wall of one side of the other high-voltage ring main unit through a hinge, and the other operating mechanism is located on the outer wall of the top end of the third cabinet door.
Further, the inner wall of the high-voltage ring main unit is provided with a rubber pad in a fitting manner.
Compared with the prior art, the compact breaker is arranged in the design of the invention; under the condition of meeting the high-voltage electrical distance, the compact element structure arrangement is designed, and the occupied area of the electric room is effectively saved due to the compression of the width of the cabinet; the isolating knife has an obvious visual lower isolating fracture when being cut off, and the door panel is provided with a fracture observation window; the operation mechanism realizes the opening and closing operation of the fracture and simultaneously realizes mechanical linkage with the circuit breaker to meet the five-prevention requirement; the structure of the device efficiently utilizes space, and the device is reasonable in design and layout, safe and reliable.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a front view of the first mounting assembly of the present invention;
FIG. 3 is a schematic front view of a third door according to the present invention;
FIG. 4 is a front view of a second mounting assembly of the present invention;
FIG. 5 is a circuit diagram of a first mounting assembly of the present invention;
FIG. 6 is a circuit diagram of a second mounting assembly of the present invention;
in the figure: 1. the high-voltage ring main unit body; 2. a support plate; 3. a first mounting assembly; 4. a second mounting assembly; 5. a first cabinet door; 6. a second cabinet door; 7. a hinge; 8. an operating mechanism; 9. a third cabinet door; 31. a first compact circuit breaker; 32. a first isolation knife; 33. a first current transformer; 34. a first fully insulated arrester; 35. a first fusible core; 36. a first voltage transformer; 37. a first outlet cable; 41. a second isolation knife; 42. a second compact circuit breaker; 43. a second current transformer; 44. a second fully insulated arrester; 45. a second fusible core; 46. a second voltage transformer; 47. a second outlet cable.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: a lower isolation belt ground knife fixed type high-voltage ring main unit structure comprises a high-voltage ring main unit body 1, a supporting plate 2, a first mounting component 3, a second mounting component 4, a first cabinet door 5, a second cabinet door 6, a hinge 7, an operating mechanism 8 and a third cabinet door 9, wherein the supporting plate 2 is fixedly welded on the inner wall of the middle part of one side of the high-voltage ring main unit body 1, and the first mounting components 3 are fixedly arranged on the outer walls of the two sides of the supporting plate 2; the first installation component 3 comprises a first compact circuit breaker 31, a first isolation knife 32, a first current transformer 33, a first fully insulated arrester 34, a first fusible core 35, a first voltage transformer 36 and a first outgoing cable 37, the first compact circuit breaker 31 is fixedly welded on the outer wall of the top end of one side of the high-voltage ring main unit 1 of the support plate 2, the first isolation knife 32 is connected on the outer wall of the top end of the other side of the high-voltage ring main unit 1 of the support plate 2 through a bolt, the first fusible core 35 is installed on the inner wall of the bottom end of the support plate 2 of the high-voltage ring main unit 1, the top end of the first fusible core 35 is connected on the outer wall of the bottom end of the first isolation knife 32 through a contact, the first voltage transformer 36 is fixedly bolted on the inner wall of the bottom end of the first fusible core 35 of the high-voltage ring main unit 1, the first current transformer 33 is connected on the inner wall of one side of the first fusible core, the top end of the first current transformer 33 is connected to the outer wall of the bottom end of the first isolation knife 32 in a contact manner, a first fully-insulated lightning arrester 34 is fixedly welded on the inner wall of the high-voltage ring main unit 1 at the bottom end of the first current transformer 33, a first outgoing cable 37 is fixedly arranged on the inner wall of the bottom end of the high-voltage ring main unit 1 at one side of the first fully-insulated lightning arrester 34, and a second installation component 4 is fixedly arranged on the inner wall of one side of the other high-voltage ring main unit 1; the second mounting assembly 4 includes a second isolating blade 41, a second compact circuit breaker 42, a second current transformer 43, a second fully insulated arrester 44, a second fusible core 45, a second voltage transformer 46 and a second outgoing cable 47, a second isolation knife 41 is connected to the inner wall of the top end of the other high-voltage ring main unit 1 through a bolt, a second compact circuit breaker 42 is installed on the inner wall of one side of the high-voltage ring main unit 1, a second fusible core 45 is connected to the inner wall, located at the bottom end of the second compact circuit breaker 42, of the high-voltage ring main unit 1 through a bolt, a second voltage transformer 46 is fixed to the inner wall, located at the bottom end of the second fusible core 45, of the high-voltage ring main unit 1, a second current transformer 43 is fixed to the inner wall, located on the opposite side of the high-voltage ring main unit 1, a second fully-insulated lightning arrester 44 is fixed to the inner wall, located on the side of the second fully-insulated lightning arrester 44, of the high-voltage ring main; the outer wall of one side of the high-voltage ring main unit body 1 is rotatably connected with a first cabinet door 5 through a hinge 7, and the outer wall of one side of the first cabinet door 5 is embedded and connected with an operating mechanism 8, so that the high-voltage ring main unit body 1 is convenient to maintain and control; the outer wall of the high-voltage ring main unit body 1, which is positioned at the top end of the first cabinet door 5, is rotatably connected with a second cabinet door 6 through a hinge 7, so that the integrity of the device is ensured; a third cabinet door 9 is rotatably connected to the outer wall of one side of the other high-voltage ring main unit body 1 through a hinge 7, and the other operating mechanism 8 is located on the outer wall of the top end of the third cabinet door 9, so that the high-voltage ring main unit body 1 is convenient to maintain and control; the inner wall of the high-voltage ring main unit body 1 is provided with a rubber pad in a fitting manner, so that the safety is improved; the high-voltage ring main unit enables a first compact circuit breaker 31 to be arranged on a supporting plate 2, creates the condition that the width of a switch cabinet has space compression, a first isolation knife 32 is arranged right opposite to the first compact circuit breaker 31, the transverse space of the switch cabinet is extremely compressed within the electrical distance safety, the first isolation knife 32 is opened and closed through an operating mechanism 8, the opening of the first isolation knife 32 can be clearly seen through an observation window on a first cabinet door 5, a first current transformer 33 is connected with the first isolation knife 32 through an upper pile according to a picture 5, a lower pile is connected with a first full-insulation lightning arrester 34, the first full-insulation lightning arrester 34 is vertically arranged on a bottom plate, the first isolation knife 32 is led to a first fusible core 35 through a lower pile according to the picture 5, the short-circuit current protection effect is achieved on a first voltage transformer 36, and a first outgoing cable 37 is outgoing through a cable fastening device of the bottom plate, so as to achieve the working process, in another installation mode, the second isolation knife 41 is installed on the uppermost surface of the switch cabinet, the upper pile is connected with the bus bar, the lower pile is connected with the upper pile of the second compact circuit breaker 42, and the knife edge of the lower pile can be seen through the observation window on the third cabinet door 9; the second isolation knife 41 is used as an on-off switch of the operating mechanism 8 to realize the function of upper isolation on-off, and the upper pile of the second current transformer 43 is connected with a second compact circuit breaker 42 and the lower pile is connected with a second fully insulated arrester 44 according to the diagram of fig. 6; then, according to fig. 6, the second compact circuit breaker 42 is driven down to the second fusible core 45, so as to protect the short-circuit current of the voltage transformer; the second fusible core 45 is connected to the second voltage transformer 46 in a downward leading mode, the second outgoing cable 47 is outgoing through the cable fastening device of the bottom plate, the working process is achieved, and the two mounting assemblies can be matched with the two circuit diagrams in pairs to form a new switch cabinet.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a lower fixed high-tension loop-network cabinets structure of median strip earthing switch, includes high-tension loop-network cabinets main part (1), backup pad (2), first installation component (3), second installation component (4), first cabinet door (5), second cabinet door (6), hinge (7), operating device (8) and third cabinet door (9), its characterized in that: a support plate (2) is fixedly welded on the inner wall of the middle part of one side of the high-voltage ring main unit body (1), and first mounting assemblies (3) are fixed on the outer walls of the two sides of the support plate (2);
the first installation assembly (3) comprises a first compact circuit breaker (31), a first isolation knife (32), a first current transformer (33), a first fully-insulated arrester (34), a first fusible core (35), a first voltage transformer (36) and a first outgoing cable (37), the first compact circuit breaker (31) is fixedly welded on the outer wall of the top end of one side of the high-voltage ring main unit (1) of the support plate (2), the first isolation knife (32) is connected on the outer wall of the top end of the other side of the high-voltage ring main unit (1) of the support plate (2) in a bolt mode, the first fusible core (35) is installed on the inner wall of the bottom end of the support plate (2) of the high-voltage ring main unit (1), the top end of the first fusible core (35) is connected to the outer wall of the bottom end of the first isolation knife (32) in a contact mode, the first voltage transformer (36) is fixedly bolt on the inner wall of the bottom end of the first fusible core (35) of the high-voltage ring main unit, a first current transformer (33) is connected to the inner wall of the high-voltage ring main unit (1) on one side of the first fusible core (35) through a bolt, the top end of the first current transformer (33) is connected to the outer wall of the bottom end of the first isolation knife (32) in a contact mode, a first fully-insulated lightning arrester (34) is fixedly welded to the inner wall of the high-voltage ring main unit (1) on the bottom end of the first current transformer (33), a first outgoing cable (37) is fixedly arranged on the inner wall of the bottom end of the high-voltage ring main unit (1) on one side of the first fully-insulated lightning arrester (34), and a second mounting assembly (4) is fixedly arranged on the inner wall of one side of the other high-voltage ring main unit (1);
the second installation assembly (4) comprises a second isolation knife (41), a second compact circuit breaker (42), a second current transformer (43), a second fully-insulated arrester (44), a second fusible core (45), a second voltage transformer (46) and a second outgoing cable (47), the second isolation knife (41) is connected to the inner wall of the top end of the other high-voltage ring main unit (1) through a bolt, the second compact circuit breaker (42) is installed on the inner wall of one side of the high-voltage ring main unit (1), the second fusible core (45) is connected to the inner wall of the bottom end of the second compact circuit breaker (42) of the high-voltage ring main unit (1) through a bolt, the second voltage transformer (46) is fixed to the inner wall of the bottom end of the second fusible core (45) of the high-voltage ring main unit (1), and the second current transformer (43) is fixed to the inner wall of the opposite side of the high-voltage ring main unit (1), a second all-insulated arrester (44) is welded and fixed on the inner wall of the bottom end of the high-voltage ring main unit body (1), and a second outgoing cable (47) is installed on the inner wall of the bottom end of the high-voltage ring main unit body (1) on one side of the second all-insulated arrester (44).
2. The lower isolation belt and ground knife fixed type high-voltage ring main unit structure according to claim 1, wherein: the high-voltage ring main unit is characterized in that a first cabinet door (5) is rotatably connected to the outer wall of one side of the high-voltage ring main unit body (1) through a hinge (7), and an operating mechanism (8) is embedded and connected to the outer wall of one side of the first cabinet door (5).
3. The lower isolation belt and ground knife fixed type high-voltage ring main unit structure according to claim 2, wherein: the high-voltage ring main unit (1) is positioned on the outer wall of the top end of the first cabinet door (5) and is rotatably connected with a second cabinet door (6) through a hinge (7).
4. The lower isolation belt and ground knife fixed type high-voltage ring main unit structure according to claim 3, wherein: and a third cabinet door (9) is rotatably connected to the outer wall of one side of the other high-voltage ring main unit body (1) through a hinge (7), and the other operating mechanism (8) is positioned on the outer wall of the top end of the third cabinet door (9).
5. The lower isolation belt and ground knife fixed type high-voltage ring main unit structure according to claim 4, wherein: the inner wall of the high-voltage ring main unit body (1) is attached with a rubber pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911083816.4A CN110768153B (en) | 2019-11-07 | 2019-11-07 | Fixed high-voltage ring main unit structure of lower median ground sword |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911083816.4A CN110768153B (en) | 2019-11-07 | 2019-11-07 | Fixed high-voltage ring main unit structure of lower median ground sword |
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| Publication Number | Publication Date |
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| CN110768153A true CN110768153A (en) | 2020-02-07 |
| CN110768153B CN110768153B (en) | 2024-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911083816.4A Active CN110768153B (en) | 2019-11-07 | 2019-11-07 | Fixed high-voltage ring main unit structure of lower median ground sword |
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| CN203387169U (en) * | 2013-06-21 | 2014-01-08 | 国家电网公司 | Vacuum circuit breaker type loop network cabinet |
| CN204633201U (en) * | 2015-04-24 | 2015-09-09 | 深圳市红岩电控设备有限公司 | A kind of totally-enclosed all insulation compact Inflatable ring main unit |
| CN106532547A (en) * | 2015-09-14 | 2017-03-22 | 天津中电华利电器科技集团有限公司 | 10kV ring main unit occupying quite small space |
| CN105703257A (en) * | 2016-04-18 | 2016-06-22 | 广东求精电气有限公司 | Solid insulation ring main unit |
| CN106329377A (en) * | 2016-10-31 | 2017-01-11 | 江苏天港箱柜有限公司 | Compact switch cabinet |
| CN207251064U (en) * | 2017-09-30 | 2018-04-17 | 宁波甬新东方电气有限公司 | The miniaturization ring main unit of tri-station isolating switch under a kind of adapted |
| CN208241088U (en) * | 2018-01-31 | 2018-12-14 | 广东北江开关厂有限公司 | A kind of distribution cabinet |
| CN208656282U (en) * | 2018-08-08 | 2019-03-26 | 湖北省电力装备有限公司 | A kind of small-sized side-mounted looped network breaker cabinet |
| CN210723937U (en) * | 2019-11-07 | 2020-06-09 | 广东北江开关厂有限公司 | Lower isolation belt ground knife fixed high-voltage ring main unit structure |
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Effective date of registration: 20211223 Address after: 511517 floors 2-4, comprehensive building of Guangdong Beijiang Switchgear Factory, No. 7 District, economic development zone, Qingyuan City, Guangdong Province Applicant after: Qingyuan Xinneng Power Engineering Co.,Ltd. high tech Division Address before: 511500 No. 15, Jianshe Second Road, high tech Industrial Development Zone, Qingyuan City, Guangdong Province Applicant before: GUANGDONG BEIJIANG SWITCH FACTORY Co.,Ltd. |
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Effective date of registration: 20220614 Address after: 511500 floor 2 of Guangdong Beijiang switchgear plant, No. 7 District, Qingyuan Economic Development Zone, Guangdong Province Applicant after: Qingyuan Xinneng Power Engineering Co.,Ltd. Address before: 511517 floors 2-4, comprehensive building of Guangdong Beijiang Switchgear Factory, No. 7 District, economic development zone, Qingyuan City, Guangdong Province Applicant before: Qingyuan Xinneng Power Engineering Co.,Ltd. high tech Division |
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