CN104505684B - Earthing pole installation method and earthing pole - Google Patents
Earthing pole installation method and earthing pole Download PDFInfo
- Publication number
- CN104505684B CN104505684B CN201410699004.3A CN201410699004A CN104505684B CN 104505684 B CN104505684 B CN 104505684B CN 201410699004 A CN201410699004 A CN 201410699004A CN 104505684 B CN104505684 B CN 104505684B
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- earthing pole
- metal tube
- grounding net
- degree
- horizontal grounding
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
A kind of earthing pole installation method and earthing pole, its earthing pole installation method includes: measure the diagonal line value of horizontal grounding net, with the length value intercepting earthing pole of 1.1 times to 1.3 times of diagonal line value, by in the insertion ground, angle of inclination with setting, the earthing pole one end, the earthing pole other end is connected to horizontal grounding net；Wherein, described angle of inclination is the angle of earthing pole and horizontal grounding net horizontal plane, and scope is 30 degree to 60 degree.This programme is by measuring the diagonal line value of horizontal grounding net, with the length value intercepting earthing pole of 1.1 times to 1.3 times of diagonal line value, by the earthing pole of acquisition with in the insertion ground, angle of inclination of 30 degree to 60 degree, the earth resistance of grounded screen is greatly reduced, thus improves grounding net of transformer substation safe operation.
Description
Technical field
The present invention relates to transformer station's technical field, particularly relate to a kind of earthing pole installation method and earthing pole.
Background technology
In power system, in order to work and security needs, often by outside power system and electrical equipment thereof
Shell, Zero potential reference, screen layer etc. are connected with the earth, referred to as ground connection.System in Substation is dimension
Protect power system security reliability service, ensure operations staff and the basic assurance of electrical equipment safety and important arrange
Execute.Power frequency grounding resistance value is the important technology index of transmission transformer station earthed system, and it is to confirm earthed system
Validity, security and identify earthed system whether meet design require important parameter.
Often earthing pole is vertically squeezed in soil, and be connected with horizontal grounding net at present, carry out reducing grounded screen
Earth resistance.But owing to earthing pole is buried underground the deepest, the person safety index such as step voltage, contact voltage
Can be deteriorated, therefore vertical grounding electrode landfill depth is limited, and the resistance reducing effect causing vertical grounding electrode is poor, thus
Cause grounding net of transformer substation poor stability.
Summary of the invention
Based on this, it is necessary to the problem causing resistance reducing effect difference for current earthing pole installation method, it is provided that
Plant earthing pole installation method and earthing pole.
A kind of earthing pole installation method, including:
Measure the diagonal line value of horizontal grounding net, intercept with the length values of 1.1 times to 1.3 times of diagonal line value and connect
Earth polar, by the insertion ground, angle of inclination with setting, the earthing pole one end, is connected to level by the earthing pole other end
Grounded screen；Wherein, described angle of inclination is the angle of earthing pole and horizontal grounding net horizontal plane, and scope is 30
Degree is to 60 degree.
Above-mentioned earthing pole installation method, by measuring the diagonal line value of horizontal grounding net, with the 1.1 of diagonal line value
Length value to 1.3 times intercepts earthing pole again, on the basis of diagonal, improves intercepting efficiency, and will obtain
The earthing pole obtained is, in the insertion ground, angle of inclination of 30 degree to 60 degree, to greatly reduce the ground connection of grounded screen
Resistance, thus improve grounding net of transformer substation safe operation.
A kind of earthing pole, the length value of described earthing pole be 1.1 times of the diagonal line value of horizontal grounding net to 1.3
Times, wherein, described horizontal grounding net is the earth mat that described earthing pole is to be connected.
Above-mentioned earthing pole, by 1.1 times to 1.3 times of diagonal line value that its length limitation is horizontal grounding net,
When using this earthing pole to carry out fall resistance, resistance-reducing yield can be improved.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of earthing pole installation method embodiment of the present invention；
Fig. 2 is earthing pole scheme of installation in the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention
It is not limited to this.
As it is shown in figure 1, be the schematic flow sheet of earthing pole installation method embodiment of the present invention, including step:
Step S101: measure the diagonal line value of horizontal grounding net, with the length of 1.1 times to 1.3 times of diagonal line value
Angle value intercepts earthing pole；Wherein, horizontal grounding net is properly termed as again horizontal earth mat.
Step S102: by earthing pole one end with in the insertion ground, angle of inclination that sets, by the earthing pole other end even
Receive horizontal grounding net；Wherein, described angle of inclination is the angle of earthing pole and horizontal grounding net horizontal plane,
Scope is 30 degree to 60 degree.
The present embodiment is by measuring the diagonal line value of horizontal grounding net, with 1.1 times to 1.3 times of diagonal line value
Length value intercepts earthing pole, by the earthing pole that obtains with in the insertion ground, angle of inclination of 30 degree to 60 degree, greatly
The big earth resistance reducing horizontal grounding net, thus improve grounding net of transformer substation safe operation.Further,
This inclination earthing pole method makes the shielding action between earthing pole and horizontal grounding net much smaller than vertical grounding electrode
And the shielding action between horizontal grounding net.The present embodiment scheme can be used in uniform soil.
Further, angle of inclination can be defined to 50 degree to 60 degree.With this gradient, earthing pole is installed
Resistance-reducing yield can be improved further.
Further, described earthing pole is connected to four angles and the peripheral position of horizontal grounding net, adjacent two
The spacing distance of earthing pole is more than or equal to 2/3rds of diagonal line value.
The present embodiment has considered the ground network area, angle of inclination, earthing pole length and earthing pole radical,
Earthing pole is installed in this way, limits earthing pole and radical is installed, not only increase resistance-reducing yield, also a saving
Cost.
Lift one of them application example to illustrate.Such as, when horizontal grounding web area 50*70m2Time, institute
Stating 1.2 times of a length of diagonal line value of earthing pole, the radical of described earthing pole is 4 to 8, described ground connection
Pole is 50 degree to 55 degree with the angle of horizontal grounding net horizontal plane.
Such as table 1 below, utilize the installation method of this application example earthing pole, the length of earthing pole is set to diagonal
1.2 times of value, earthing pole is 55 degree with the angle of horizontal grounding net horizontal plane, pacifies in uniform soil
Dress obtains the resistance-reducing yield under different earthing pole radical, utilizes in conventional art vertical grounding electrode installation method all
Even soil is carried out the resistance-reducing yield obtained under different earthing pole radical is installed, the resistance-reducing yield that both obtain is carried out
Relatively:
Table 1
Understanding, the resistance-reducing yield using the present embodiment earthing pole installation method to reach is significantly larger than tradition earthing pole peace
The resistance-reducing yield of dress method.And along with radical N is gradually increased, the maximum resistance-reducing yield of the present embodiment earthing pole in
, finally there is saturated phenomenon in increasing trend.Such as, when radical is increased to 8 by 4, the fall of slanting grounding electrode
Resistance rate increases about 10%.When radical is increased to 24 by 20, the resistance-reducing yield of slanting grounding electrode only increases by 2%.
The resistance reducing effect of this explanation slanting grounding electrode is substantially saturated, and the radical continuing to increase slanting grounding electrode will improve fall resistance
Cost.Therefore, the radical 4 of slanting grounding electrode～8 are optimal, on the premise of improving resistance-reducing yield, reduce into
This.
Wherein in an embodiment, described ground connection extremely metal tube, described metal tube sidewall is uniformly provided with hole,
It is that opening is arranged that metal tube connects one end of horizontal grounding net, and the other end of metal tube is arranged for sealing.
When insert soil be not uniform soil time, the earthing pole in the present embodiment compared with common earthing pole,
Earthing pole with holes makes the moisture absorption in soil in pipe, makes pipe surrounding soil humidity improve further, it is to avoid
Earthing pole surrounding soil resistivity was affected by season, thus avoided earth resistance by seasonal effect, had
Imitate stabilizes substation grounding resistance, it is ensured that power grid security.
Further, the lateral wall of described metal tube can be provided with carbon dust layer.By arranging carbon dust layer, improve
The humidity of earthing pole surrounding soil, then the effect that earth resistance is affected by season can reduce further.Such as,
As in figure 2 it is shown, be earthing pole scheme of installation in the embodiment of the present invention.Earthing pole 210 is metal tube, gold
Belonging to tube side wall and be uniformly provided with hole 211, it is that opening is arranged that metal tube connects one end of horizontal grounding net, metal tube
The other end is arranged for sealing.The lateral wall of metal tube can be provided with carbon dust layer 212.The a length of grounded screen of earthing pole
1.1 times of 220 diagonal line value to 1.3 times, and by earthing pole one end with set insertion ground, angle of inclination in.
Further, the madial wall of described metal tube can be provided with carbon dust layer.By arranging carbon dust layer, improve
The humidity of earthing pole surrounding soil, then the effect that earth resistance is affected by season can reduce further.
Various technical characteristics in embodiment of above can arbitrarily be combined, if the combination between feature
There is not conflict or contradiction, but as space is limited, describe one by one, in the most above-mentioned embodiment
Various technical characteristics be arbitrarily combined falling within the scope of this disclosure.
It addition, the application also provides for a kind of earthing pole, the length value of described earthing pole is the right of horizontal grounding net
1.1 times of linea angulata value are to 1.3 times, and wherein, described horizontal grounding net is the earth mat that described earthing pole is to be connected.
Wherein in an embodiment, described ground connection extremely metal tube, described metal tube sidewall is uniformly provided with hole,
It is that opening is arranged that metal tube connects one end of horizontal grounding net, and the other end of metal tube is arranged for sealing.
Wherein in an embodiment, the lateral wall of described metal tube is provided with carbon dust layer, and/or described metal tube
Madial wall be provided with carbon dust layer.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed,
But therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that, for this area
Those of ordinary skill for, without departing from the inventive concept of the premise, it is also possible to make some deformation and
Improving, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be with appended
Claim is as the criterion.
Claims (5)
1. an earthing pole installation method, it is characterised in that including:
Measure the diagonal line value of horizontal grounding net, intercept with the length values of 1.1 times to 1.3 times of diagonal line value and connect
Earth polar, by the insertion ground, angle of inclination with setting, the earthing pole one end, is connected to level by the earthing pole other end
Grounded screen；Wherein, described angle of inclination is the angle of earthing pole and horizontal grounding net horizontal plane, and scope is 30
Degree is to 60 degree；
Described earthing pole is connected to four angles and the peripheral position of horizontal grounding net, between adjacent two earthing poles
Space from more than or equal to 2/3rds of diagonal line value；
Described ground connection extremely metal tube, described metal tube sidewall is uniformly provided with hole, and metal tube connects horizontal grounding
One end of net is that opening is arranged, and the other end of metal tube is arranged for sealing, and the lateral wall of metal tube is provided with carbon dust
Layer.
Earthing pole installation method the most according to claim 1, it is characterised in that described angle of inclination is
50 degree to 60 degree.
Earthing pole installation method the most according to claim 1, it is characterised in that described horizontal grounding net
Area is 50*70m2Time, 1.2 times of a length of diagonal line value of described earthing pole, the radical of described earthing pole
Being 4 to 8, described earthing pole is 50 degree to 55 degree with the angle of horizontal grounding net horizontal plane.
Earthing pole installation method the most according to claim 1, it is characterised in that described metal tube interior
Sidewall is provided with carbon dust layer.
5. an earthing pole, it is characterised in that the length value of described earthing pole is the diagonal of horizontal grounding net
1.1 times to 1.3 times of value, wherein, described horizontal grounding net is the earth mat that described earthing pole is to be connected, described
Ground connection extremely metal tube, described metal tube sidewall is uniformly provided with hole, and metal tube connects one end of horizontal grounding net
Arranging for opening, the other end of metal tube is arranged for sealing, and the lateral wall of metal tube is provided with carbon dust layer, and/or
The madial wall of metal tube is provided with carbon dust layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410699004.3A CN104505684B (en) | 2014-11-26 | 2014-11-26 | Earthing pole installation method and earthing pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410699004.3A CN104505684B (en) | 2014-11-26 | 2014-11-26 | Earthing pole installation method and earthing pole |
Publications (2)
| Publication Number | Publication Date |
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| CN104505684A CN104505684A (en) | 2015-04-08 |
| CN104505684B true CN104505684B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410699004.3A Active CN104505684B (en) | 2014-11-26 | 2014-11-26 | Earthing pole installation method and earthing pole |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112580697B (en) * | 2020-12-04 | 2023-05-26 | 国网山东省电力公司电力科学研究院 | Power transmission line tower grounding selection method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2459767Y (en) * | 2000-12-20 | 2001-11-14 | 梁清强 | Outer inclind deep hole grounding device |
| CN202905964U (en) * | 2012-10-17 | 2013-04-24 | 宁夏电力公司石嘴山供电局 | Earth electrode resistor device used for power distribution network |
| CN103326278B (en) * | 2013-05-31 | 2016-09-14 | 广东电网公司电力科学研究院 | The wiring of substation ground network earthmeter line and take-up technique, retractable cable car |
| CN103928773A (en) * | 2014-04-25 | 2014-07-16 | 广东电网公司惠州供电局 | Method for improving transformer substation soil moisture content |
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