CN204441766U - The external ground net of transformer station - Google Patents
The external ground net of transformer station Download PDFInfo
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- CN204441766U CN204441766U CN201520028483.6U CN201520028483U CN204441766U CN 204441766 U CN204441766 U CN 204441766U CN 201520028483 U CN201520028483 U CN 201520028483U CN 204441766 U CN204441766 U CN 204441766U
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- net
- copper
- external ground
- plated steel
- transformer station
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Abstract
The utility model provides a kind of external ground net of transformer station, it is characterized in that, this external ground net includes: some copper plated steel twisted wires and some columniform copper facing rod irons, those copper plated steel twisted wires are fixedly connected into the horizontal grounding net that has some square nets, the length of side of each square net is all between 5.5 to 6 meters, each lap-joint of this horizontal grounding net is fixedly connected with this copper facing rod iron respectively, and this external ground net crosses band steel with the inner ground Netcom of transformer station or copper coin reliably welds.The utility model compensate in prior art the ground network being layed in transformer station outside and usually occurs the deficiency that cost and earthing effect can not be taken into account, and has that cost is low and earthing effect good, be connected firmly, the advantage such as lightning-arrest and anticorrosive.
Description
Technical field
The utility model relates to a kind of external ground net of transformer station.
Background technology
Along with the development of electric power system, also more and more higher to the requirement of substation grounding design.For a long time, reliable and stable grounding system, be the basic guarantee of the stable operation of maintenance equipment, guarantee equipment and personal security.At present, the area that ground network usually appears increasing to improve earthing effect in the ground network being layed in transformer station outside causes the problem of high cost on the contrary, or in order to cost-saving and problem that is that cause earthing effect not good.
Utility model content
The technical problems to be solved in the utility model is that the defect that cost and earthing effect can not be taken into account usually appears in the ground network being layed in transformer station outside in order to overcome prior art, provides a kind of cost low and the external ground net of the transformer station that earthing effect is good.
The utility model solves above-mentioned technical problem by following technical proposals:
The utility model provides a kind of external ground net of transformer station, be characterized in, this external ground net includes: some copper plated steel twisted wires and some columniform copper facing rod irons, those copper plated steel twisted wires are fixedly connected into the horizontal grounding net that has some square nets, the length of side of each square net is all between 5.5 to 6 meters, each lap-joint of this horizontal grounding net is fixedly connected with this copper facing rod iron respectively, and this external ground net crosses band steel with the inner ground Netcom of transformer station or copper coin reliably welds.
This inner ground net is the ground network being positioned at transformer station inside.Copper plated steel twisted wire wherein and copper facing rod iron all adopt current material namely to can be made into.
This external ground netting gear has cost low and the good advantage of earthing effect, also has good lightning-arrest effect and anti-corrosion effects simultaneously.The corrosion of external ground net mainly contains chemical corrosion and electrochemical corrosion two kinds of forms, and as a rule, these two kinds corrosion exist simultaneously.Ground network of the prior art is commonly used zinc-coated flat steel sheet and is made, but after zinc-coated flat steel sheet runs 5 years, corrosion phenomenon is serious, and even corroding of having is disconnected.And the corrosion rate of copper in soil is approximately the 1/10-1/50 of steel, be more than 3 times of the corrosion resistance of zinc-coated flat steel sheet, and electric property is stablized.So external ground net of the present utility model can be good at anticorrosive, and the life-span is longer.
Preferably, four drift angles of this horizontal grounding net are chamfering and the radius of this chamfering is less than or equal to the half of the length of side of this square net.Copper plated steel twisted wire has good flexibility, the bending radius allowed is little, turn round conveniently, poling is easy, is not easy the phenomenon occurring fractureing when forming this chamfering, easy to operate, be convenient to accelerating construction progress, save labour cost, simplify construction technology, the more important thing is the quality of connection that ensure that ground network.
Preferably, the radius of this copper facing rod iron is 14.2 to 16mm.
Preferably, this copper plated steel twisted wire is 30% conductance copper plated steel twisted wire.
Preferably, the area of section of this copper plated steel twisted wire is 120 to 150mm
2.
Preferably, the thickness of coating of this copper plated steel twisted wire is greater than 0.25mm.
On the basis meeting this area general knowledge, above-mentioned each optimum condition, can combination in any, obtains each preferred embodiments of the utility model.
Positive progressive effect of the present utility model is: external ground net of the present utility model can reduce costs greatly, improves earthing effect, also have be connected firmly, lightning-arrest and erosion-resisting advantage.
Accompanying drawing explanation
Fig. 1 is the main schematic diagram of the external ground net of the transformer station of the utility model embodiment.
Fig. 2 is the side schematic view of the external ground net of the transformer station of the utility model embodiment.
Embodiment
Lift preferred embodiment below, and come by reference to the accompanying drawings clearlyer intactly the utility model to be described.
Embodiment
See Fig. 1, a kind of external ground net of transformer station, this external ground net includes: some copper plated steel twisted wires 1 and some columniform copper facing rod irons 2.
Those copper plated steel twisted wires are 30% conductance copper plated steel twisted wire, and area of section is 120 to 150mm
2.The steel core of copper plated steel twisted wire is abundant by copper plate, consistent, continuous print wraps up, and combines closely, and thickness of coating is greater than 0.25mm.Do 90 ° of cripping tests in the place of the nominal list core diameter 100 times of sub-thread copper plated steel twisted wire, copper plated steel twisted wire can withstand bending and the recovery of minimum 10 times, and layers of copper is not broken.Wherein, the frequency of bending is 15 times per minute.
The radius of this copper facing rod iron is 14.2 to 16mm, adopts electroplating technology.The thickness of the layers of copper of copper facing rod iron plating is greater than 0.25mm, and copper layer thickness is even, and 1 meter of length copper layer thickness difference is no more than 0.05mm, copper steel plating bar copper layer copper content >=99.9%.Copper plate adopts electric plating method first to plate metallic nickel in steel core appearance, then in the surperficial plated with copper of nickel to ensure the adhesiveness between copper and steel, guarantee to install and use in process, layers of copper does not warp not ftracture and do not peel off.
See Fig. 1 and Fig. 2, those copper plated steel twisted wires 1 are fixedly connected into the horizontal grounding net 4 that has some square nets, the length of side of each square net is all between 5.5 to 6 meters, and four drift angles 3 of this horizontal grounding net 4 are chamfering and the radius of this chamfering is less than or equal to the half of the length of side of this square net.Each lap-joint of this horizontal grounding net connects by welding is reliable, and is fixedly connected with this copper facing rod iron 2 respectively in each lap-joint, and this external ground net crosses band steel with the inner ground Netcom of transformer station or copper coin reliably welds.
Although the foregoing describe embodiment of the present utility model, it will be understood by those of skill in the art that these only illustrate, protection range of the present utility model is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present utility model and essence, can make various changes or modifications to these execution modes, but these change and amendment all falls into protection range of the present utility model.
Claims (6)
1. the external ground net of a transformer station, it is characterized in that, this external ground net includes: some copper plated steel twisted wires and some columniform copper facing rod irons, those copper plated steel twisted wires are fixedly connected into the horizontal grounding net that has some square nets, the length of side of each square net is all between 5.5 to 6 meters, each lap-joint of this horizontal grounding net is fixedly connected with this copper facing rod iron respectively, and this external ground net crosses band steel with the inner ground Netcom of transformer station or copper coin reliably welds.
2. external ground net as claimed in claim 1, is characterized in that, four drift angles of this horizontal grounding net are chamfering and the radius of this chamfering is less than or equal to the half of the length of side of this square net.
3. external ground net as claimed in claim 1, it is characterized in that, the radius of this copper facing rod iron is 14.2 to 16mm.
4. external ground net as claimed in claim 1, it is characterized in that, this copper plated steel twisted wire is 30% conductance copper plated steel twisted wire.
5. external ground net as claimed in claim 1, it is characterized in that, the area of section of this copper plated steel twisted wire is 120 to 150mm
2.
6. external ground net as claimed in claim 5, it is characterized in that, the thickness of coating of this copper plated steel twisted wire is greater than 0.25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520028483.6U CN204441766U (en) | 2015-01-15 | 2015-01-15 | The external ground net of transformer station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520028483.6U CN204441766U (en) | 2015-01-15 | 2015-01-15 | The external ground net of transformer station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204441766U true CN204441766U (en) | 2015-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520028483.6U Active CN204441766U (en) | 2015-01-15 | 2015-01-15 | The external ground net of transformer station |
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| CN (1) | CN204441766U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114759374A (en) * | 2022-04-25 | 2022-07-15 | 中建八局第二建设有限公司 | Independent grounding device for important equipment and construction method thereof |
| CN114759374B (en) * | 2022-04-25 | 2024-05-10 | 中建八局第二建设有限公司 | Independent grounding device for important equipment and construction method thereof |
-
2015
- 2015-01-15 CN CN201520028483.6U patent/CN204441766U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114759374A (en) * | 2022-04-25 | 2022-07-15 | 中建八局第二建设有限公司 | Independent grounding device for important equipment and construction method thereof |
| CN114759374B (en) * | 2022-04-25 | 2024-05-10 | 中建八局第二建设有限公司 | Independent grounding device for important equipment and construction method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |