CN110011186B - Grounding component and method of power transformation and distribution device - Google Patents
Grounding component and method of power transformation and distribution device Download PDFInfo
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- CN110011186B CN110011186B CN201910416914.9A CN201910416914A CN110011186B CN 110011186 B CN110011186 B CN 110011186B CN 201910416914 A CN201910416914 A CN 201910416914A CN 110011186 B CN110011186 B CN 110011186B
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- grounding
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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
- H02B1/207—Cross-bar layouts
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Abstract
The invention discloses a grounding component and a method of a power transformation and distribution device, wherein the grounding component of the power transformation and distribution device comprises a shell of the power transformation and distribution device and a grounding component; the grounding component is arranged below the side surface of the transformer and distribution device shell; the grounding component consists of a grounding component identification plate, a main grounding bus of the grounding component, a branch grounding bus of the grounding component and a grounding network; a method for connecting grounding parts of a power transformation and distribution device comprises the following steps: the high-voltage unit, the low-voltage unit, the transformer unit and the transformer and distribution device shell are respectively connected with a high-voltage unit connecting cable, a low-voltage unit connecting cable, a transformer unit connecting cable and a transformer and distribution device shell connecting cable which are connected to a branch grounding bus of a grounding component through a high-voltage unit grounding bus, a low-voltage unit grounding bus, a transformer unit grounding terminal and a transformer and distribution device shell grounding terminal. The invention can conveniently and rapidly measure the integral resistance value under the condition that the working personnel does not enter the transformer and distribution device, and has wide applicability.
Description
Technical Field
The present invention relates to a grounding component and a method thereof, and more particularly, to a grounding component and a method thereof for a power transformation and distribution device.
Background
With the deep modernization construction in our country and the continuous development of social economy, in order to improve the productivity and economic benefits, power supply enterprises introduce a plurality of western advanced technologies, such as adopting unattended box-type substations which are advantageous in many aspects. How to select a relatively reliable grounding mode of the box-type substation and better exert the powerful efficacy of the box-type substation becomes a problem to be solved at present. At present, the grounding mode of domestic power transformation and distribution devices (box-type substations and the like) is mostly that each functional unit (high-voltage unit, transformer unit, low-voltage unit) is grounded with a shell, and after one or more grounding points are reserved by the shell, the shell is connected with a grounding grid by adopting galvanized flat steel, but the grounding mode has the following defects: the single grounding resistance of each functional unit needs to be measured in the equipment, the grounding resistance value of each unit part is inconvenient to measure, and the operation is complicated and time-consuming.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides a grounding component of a transformer and distribution device and a method.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a grounding component of a power transformation and distribution device comprises a power transformation and distribution device shell and a grounding component; the grounding component is arranged below the side surface of the transformer and distribution device shell; the grounding component consists of a grounding component identification plate, a main grounding bus of the grounding component, a branch grounding bus of the grounding component and a grounding network; the grounding component identification plate is transversely arranged on the power transformation and distribution device shell; the grounding component branch grounding buses are multiple, and the upper parts of the grounding component branch grounding buses are vertically connected with the grounding component identification plate;
the grounding component main grounding buses are respectively vertically connected with the middle upper parts of the two or three grounding component branch grounding buses; the left side and the right side of the branch grounding bus of the grounding component are both vertically provided with a grounding network system; the upper part of the grounding grid is vertically connected with a main grounding bus of the grounding component, and the lower end of the grounding grid is connected with a main grounding copper bar of the grounding component; the grounding net is grounded by galvanized flat steel;
a high-voltage unit, a low-voltage unit and a transformer unit are arranged in the shell of the power transformation and distribution device; the high-voltage unit is arranged above the transformer unit; the low-voltage unit is arranged on the right side of the high-voltage unit and the transformer unit.
A connection method of grounding parts of a power transformation and distribution device comprises the following specific steps:
the top end of a branch grounding bus of the grounding component is respectively connected with a transformer unit connecting cable, a transformer and power distribution device shell connecting cable, a high-voltage unit connecting cable, a low-voltage unit connecting cable and a communication unit connecting cable; the branch grounding bus of the grounding component is also provided with a standby grounding bus for standby;
connecting the other ends of the transformer unit connecting cable, the transformer and distribution device shell connecting cable, the high-voltage unit connecting cable and the low-voltage unit connecting cable with a transformer unit grounding terminal, a transformer and distribution device shell grounding terminal, a high-voltage unit grounding bus and a low-voltage unit grounding bus respectively; the lower end of a branch grounding bus of the grounding component connected with the communication unit connecting cable is connected to the branch copper bar;
connecting the transformer unit with a grounding terminal of the transformer unit; the transformer and distribution device shell is connected with a grounding terminal of the transformer and distribution device shell; the high-voltage unit is connected with the high-voltage unit grounding bus; the low-voltage unit is connected with the low-voltage unit grounding bus, so that connection between each unit in the power transformation and distribution device and the grounding component is realized.
The invention can conveniently and rapidly measure the whole resistance value under the condition that the working personnel does not enter the transformer and distribution device, and simultaneously can measure the grounding resistance value of each unit part by disconnecting the grounding of the corresponding unit, thereby saving time and labor and having wide applicability.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the installation position of fig. 1.
Fig. 3 is a schematic view of the internal connection components of fig. 1.
In the figure: 1. the transformer unit is connected with the cable; 2. the shell of the power transformation and distribution device is connected with a cable; 3. the high-voltage unit is connected with a cable; 4. the low-voltage unit is connected with the cable; 5. the communication unit is connected with a cable; 6. a ground component identification plate; 7. a grounding member main grounding bus; 8. the grounding component branches a grounding bus; 9. a grounding grid; 10. a high voltage unit; 11. a low-voltage unit; 12. a transformer unit; 13. a power transformation and distribution device housing; 14. a grounding member; 15. a high voltage unit ground bus; 16. a low voltage unit ground bus; 17. a transformer unit ground terminal; 18. the transformer and distribution device shell is grounded.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The grounding component of the transformation and distribution device shown in fig. 1-3 comprises a transformation and distribution device shell 13 and a grounding component 14; the grounding part 14 is arranged below the side surface of the transformation and distribution device shell 13; the grounding component 14 consists of a grounding component identification plate 6, a grounding component main grounding bus 7, a grounding component branch grounding bus 8 and a grounding grid 9; the grounding component identification plate 6 is transversely arranged on the transformation and distribution device shell 13; the grounding component branch grounding buses 8 are multiple, and the upper parts of the grounding component branch grounding buses are vertically connected with the grounding component identification plate 6; one end of a main grounding bus 7 of the grounding component is connected with a grounding main line, and the other end is connected with a protector device; the grounding grid 9 plays roles of safety protection, shielding and the like. The grounding grid 9 connects a plurality of grounding bodies with a grounding main line to form a network, and has the characteristics of reliable grounding and small grounding resistance.
The grounding component main grounding buses 7 are multiple, and the grounding component main grounding buses 7 are respectively vertically connected with the middle upper parts of two or three grounding component branch grounding buses; the left side and the right side of the grounding component branch grounding bus 8 are both vertically provided with a grounding grid system 9; the upper part of the grounding grid 9 is vertically connected with a main grounding bus 7 of the grounding part, and the lower end of the grounding grid is connected with a main grounding copper bar of the grounding part 14; the grounding grid 9 is grounded by galvanized flat steel; the galvanized flat steel can be directly welded, has the advantages of smooth surface, accurate dimension, attractive appearance, durability and the like, and has the characteristics of high bearing capacity, light structure, convenience in hoisting and the like due to the firm grid pressure welding structure. The galvanized flat steel is used as a lead-out wire for use, test and debugging.
A high-voltage unit 10, a low-voltage unit 11 and a transformer unit 12 are arranged in the power transformation and distribution device shell 13; the high voltage unit 10 is disposed above the transformer unit 12; the low voltage unit 11 is disposed on the right side of the high voltage unit 10 and the transformer unit 12. The high-voltage power supply sent from the line firstly reaches the high-voltage unit 10, a breaker is arranged in the high-voltage unit 10 to close or break the power supply of a power supply line, and the high-voltage unit 10 is provided with metering gauges of electric quantity, voltage, current and the like, the high-voltage power supply is transmitted to the transformer unit 12 from a feeder line of the high-voltage unit 10, and is transmitted to the low-voltage unit 11 after being subjected to voltage reduction through the transformer unit 12, and the low-voltage unit 11 is also provided with various metering gauges and is transmitted to various load users through a feeder line.
A connection method of grounding parts of a power transformation and distribution device comprises the following specific steps:
the top end of a branch grounding bus 8 of the grounding component is respectively connected with a transformer unit connecting cable 1, a transformer and distribution device shell connecting cable 2, a high-voltage unit connecting cable 3, a low-voltage unit connecting cable 4 and a communication unit connecting cable 5; the grounding component branch grounding busbar 8 is also provided with a standby grounding busbar so as to be standby;
the other ends of the transformer unit connecting cable 1, the transformation and distribution device shell connecting cable 2, the high-voltage unit connecting cable 3 and the low-voltage unit connecting cable 4 are respectively connected with a transformer unit grounding terminal 17, a transformation and distribution device shell grounding terminal 18, a high-voltage unit grounding bus 15 and a low-voltage unit grounding bus 16; the lower end of a branch grounding bus 8 of the grounding component connected with the communication unit connecting cable 5 is connected to a branch copper bar;
connecting the transformer unit 12 with the transformer unit ground terminal 17; the transformation and distribution device shell 13 is connected with a transformation and distribution device shell grounding terminal 18; the high-voltage unit 10 is connected with a high-voltage unit grounding bus 15; the low-voltage unit 11 is connected with a low-voltage unit grounding bus 16, so that connection of each unit and a grounding component in the power transformation and distribution device is realized.
The transformer unit 12, the transformer distribution device shell 13, the high-voltage unit 10 and the low-voltage unit 11 are connected with the grounding component 14 through the transformer unit connecting cable 1, the transformer distribution device shell connecting cable 2, the high-voltage unit connecting cable 3 and the low-voltage unit connecting cable 4, so that the whole resistance value can be conveniently and quickly measured under the condition that a worker does not enter the transformer distribution device, meanwhile, the grounding resistance value of each unit part can be measured by disconnecting the corresponding unit from the ground.
The grounding points are led out by adopting copper bus connection inside the invention, so that the grounding of each unit part of a high-voltage unit, a transformer unit, a low-voltage unit, a shell unit, a communication unit and the like is led out to the internal grounding points of the invention by adopting copper wires for connection, and two galvanized flat steels are led out from a grounding net to be connected to the position of the main grounding copper bar of the invention. The grounding resistance measuring device is arranged below the side face of the shell of the power transformation and distribution device, is convenient for workers to open from the outside of equipment and directly measure the grounding resistance value, can also measure the grounding resistance value of each unit part by disconnecting the grounding of the corresponding unit, has a simple structure, is convenient and quick, and can be widely applied to the field of the power transformation and distribution device.
The above embodiments are not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make variations, modifications, additions or substitutions within the technical scope of the present invention.
Claims (2)
1. A grounding part of a power transformation and distribution device comprises a power transformation and distribution device shell (13), and is characterized in that: it also comprises a grounding member (14); the grounding part (14) is arranged below the side surface of the transformation and distribution device shell (13); the grounding component (14) consists of a grounding component identification plate (6), a grounding component main grounding bus (7), a grounding component branch grounding bus (8) and a grounding network (9); the grounding component identification plate (6) is transversely arranged on the transformation and distribution device shell (13); the grounding component branch grounding buses (8) are multiple, and the upper parts of the grounding component branch grounding buses are vertically connected with the grounding component identification plate (6);
the grounding component main grounding buses (7) are multiple, and the grounding component main grounding buses (7) are respectively vertically connected with the middle upper parts of two or three grounding component branch grounding buses; a grounding grid system (9) is vertically arranged on the left side and the right side of the grounding component branch grounding bus (8); the upper part of the grounding grid (9) is vertically connected with a main grounding bus (7) of the grounding part, and the lower end of the grounding grid is connected to a main grounding copper bar of the grounding part (14); the grounding grid (9) is grounded by galvanized flat steel;
a high-voltage unit (10), a low-voltage unit (11) and a transformer unit (12) are arranged in the transformer and distribution device shell (13); the high-voltage unit (10) is arranged above the transformer unit (12); the low-voltage unit (11) is arranged on the right side of the high-voltage unit (10) and the transformer unit (12).
2. A method for connecting grounding parts of a power transformation and distribution device is characterized in that: the connection method specifically comprises the following steps:
the top end of a branch grounding bus (8) of the grounding component is respectively connected with a transformer unit connecting cable (1), a transformer and distribution device shell connecting cable (2), a high-voltage unit connecting cable (3), a low-voltage unit connecting cable (4) and a communication unit connecting cable (5); the grounding component branch grounding bus (8) is also provided with a standby grounding bus for standby;
the other ends of the transformer unit connecting cable (1), the transformer and distribution device shell connecting cable (2), the high-voltage unit connecting cable (3) and the low-voltage unit connecting cable (4) are respectively connected with a transformer unit grounding terminal (17), a transformer and distribution device shell grounding terminal (18), a high-voltage unit grounding bus (15) and a low-voltage unit grounding bus (16); the lower end of a branch grounding bus (8) of the grounding component connected with the communication unit connecting cable (5) is connected to a branch copper bar;
connecting the transformer unit (12) with a transformer unit ground terminal (17); the power transformation and distribution device shell (13) is connected with a power transformation and distribution device shell grounding terminal (18); the high-voltage unit (10) is connected with a high-voltage unit grounding bus (15); the low-voltage unit (11) is connected with a low-voltage unit grounding bus (16), so that the connection between each unit and a grounding component in the power transformation and distribution device is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910416914.9A CN110011186B (en) | 2019-05-20 | 2019-05-20 | Grounding component and method of power transformation and distribution device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910416914.9A CN110011186B (en) | 2019-05-20 | 2019-05-20 | Grounding component and method of power transformation and distribution device |
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| Publication Number | Publication Date |
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| CN110011186A CN110011186A (en) | 2019-07-12 |
| CN110011186B true CN110011186B (en) | 2023-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910416914.9A Active CN110011186B (en) | 2019-05-20 | 2019-05-20 | Grounding component and method of power transformation and distribution device |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000224718A (en) * | 1999-01-28 | 2000-08-11 | Matsushita Electric Works Ltd | Lightning protective device and ground terminal board with the device |
| JP2002252906A (en) * | 2001-02-23 | 2002-09-06 | Fuji Electric Co Ltd | Fitting structure for grounding bus of lined board type distribution boards |
| JP2007151252A (en) * | 2005-11-25 | 2007-06-14 | Matsushita Electric Works Ltd | Lightning protective device and grounding terminal board equipped with the lightning protective device |
| CN201682192U (en) * | 2009-11-02 | 2010-12-22 | 泰豪科技(深圳)电力技术有限公司 | Semi-embedded box type substation |
| CN205944461U (en) * | 2016-07-01 | 2017-02-08 | 济南超特恒信电子工程有限公司 | Ground copper bars connects |
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Denomination of invention: A grounding component and method for a power transformation and distribution device Effective date of registration: 20230907 Granted publication date: 20230414 Pledgee: SHANDONG WEIHAI RURAL COMMERCIAL BANK Co.,Ltd. Pledgor: EBA Technology (Weihai) Co.,Ltd. Registration number: Y2023980055708 |
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