CN202422914U - Ground lead device for oil-immersed transformer - Google Patents
Ground lead device for oil-immersed transformer Download PDFInfo
- Publication number
- CN202422914U CN202422914U CN2011205673226U CN201120567322U CN202422914U CN 202422914 U CN202422914 U CN 202422914U CN 2011205673226 U CN2011205673226 U CN 2011205673226U CN 201120567322 U CN201120567322 U CN 201120567322U CN 202422914 U CN202422914 U CN 202422914U
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- Prior art keywords
- plate
- ground
- transformer
- connector lug
- oil
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- 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.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 35
- 239000011159 matrix material Substances 0.000 claims abstract description 25
- 238000009413 insulation Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 abstract description 3
- 230000000149 penetrating effect Effects 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 239000002828 fuel tank Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000012467 final product Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000011810 insulating material Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model provides a ground lead device for an oil-immersed transformer. The ground lead device comprises a cylindrical matrix used for fixedly penetrating through the sidewall of a transformer oil tank, wherein both ends of the matrix are respectively provided with an opening, and the both ends of the matrix are respectively fixedly connected to a sealing plate used for covering the openings and a ground plate; at least one first connector lug used for connecting a ground wire is formed on the end face of the sealing plate, which is located in the transformer oil tank, a second connection lug connected to a grounding net is formed on the end face of the ground plate, which is located out of the transformer oil tank, and the sealing plate is electrically connected with the ground plate through a connecting cable. According to the ground lead device for the oil-immersed transformer provided by the utility model, the operation for installing the ground lead device by the transformer is simpler and more convenient, and the mounting efficiency of the transformer is improved; meanwhile, the safety hidden trouble in a working process of the oil-immersed transformer is reduced.
Description
Technical field
The utility model relates to transformer manufacturing, use and mounting technique, relates in particular to a kind of oil-filled transformer ground lead device.
Background technology
Oil-filled transformer comprises: elements such as iron core, winding, insulation, lead-in wire, tank envelope and external module.
The iron core of oil-filled transformer, the winding on the iron core, insulation, lead-in wire all are arranged in the fuel tank, and are equipped with insulating oil liquid in the fuel tank; Lamination and folder are the vitals of transformer core; They are insulated from each other; And transformer requires the necessary single-point grounding of iron core to guarantee the transformer trouble free service when operation, in addition, also requires sometimes transformer folder also single-point grounding to detect or fault judgement; Therefore, be connected on the ground network after need utilizing the ground lead device that the earth connection of iron core or transformer folder is drawn by fuel tank.
Ground lead device of the prior art is an insulating sleeve; This insulating sleeve fixedly is located on the top cover of fuel tank; The earth connection of iron core or transformer folder leads to outside the fuel tank after passing this insulating sleeve, just can be connected on the ground network through copper bar or earth cable then.
The ground lead device of this insulating sleeve form in the prior art requires must protect in the transformer installation process and draws together the lead-in wire operation, promptly; Insulating sleeve fixedly is located on the top cover of fuel tank; Pass by its top again after between unshakable in one's determination and fuel tank top cover, in the narrow space earth connection being penetrated insulating sleeve by the bottom of insulating sleeve, pass through earth cable again, under the support of insulator; Be connected with ground network; This operation manufacturing process is loaded down with trivial details, and implementing wastes time and energy, and influences the installation effectiveness of transformer; And, because the artificial operation that penetrates, passes is easy to bump brokenly the insulation sheath of insulating sleeve or earth connection, thereby increased the potential safety hazard in the oil-filled transformer course of work.
The utility model content
Above-mentioned defective to prior art; The utility model provides a kind of oil-filled transformer ground lead device; Comprise: a tubular, be used for fixing the matrix on the sidewall that is located in oil tank of transformer; The two ends of said matrix have opening respectively, and the two ends of said matrix are fixedly connected sealing plate and the ground plate that is useful on the said opening of covering sealing respectively; Said sealing plate is positioned at and is formed with at least one first connector lug that is used to connect earth connection on the end face in the oil tank of transformer; Said ground plate is positioned on the outer end face of said oil tank of transformer and is formed with second connector lug that is used to be connected to ground network, is electrically connected through stube cable between said sealing plate and the said ground plate.
Aforesaid oil-filled transformer ground lead device, wherein, said sealing plate is the insulated enclosure plate, said ground plate is the insulation ground plate, and said insulation ground plate and said insulated enclosure plate are screwed onto on the matrix respectively.
Aforesaid oil-filled transformer ground lead device; Wherein, Be formed with the 3rd connector lug that is formed with at least one on the relative other end of the end face of said first connector lug on the said sealing plate and with said sealing plate; Be formed with the 4th connector lug that is formed with at least one on the relative other end of the end face of said second connector lug on the said ground plate and with said ground plate, said the 3rd connector lug is connected through said stube cable with said the 4th connector lug.
Aforesaid oil-filled transformer ground lead device, wherein, said matrix is cylindric, is formed with the flange that is used for fixing on the sidewall that is connected to said oil tank of transformer on the lateral surface that is the face of cylinder of said matrix.
Aforesaid oil-filled transformer ground lead device; Wherein, Fixedly be equipped with two first conductive poles on the said insulated enclosure plate; The two ends that said conductive pole stretches out said insulated enclosure plate both sides are respectively said first connector lug and said the 3rd connector lug, and two said first connector lugs are through the first short circuit sheet short circuit; Fixedly be equipped with two second conductive poles on the said insulation ground plate; The two ends that said second conductive pole stretches out said insulation ground plate both sides are respectively said the 4th connector lug and said second connector lug, and two said second connector lugs are through the second short circuit sheet short circuit.
Aforesaid oil-filled transformer ground lead device; Wherein, The edge of said ground plate is fixedly connected with an installing sleeve; Be fixedly connected with an end cap on the said installing sleeve, said second connector lug of at least one is positioned at the ccontaining cavity that said installing sleeve and said end cap surround, and offers through the hole on said installing sleeve or the said end cap.
The oil-filled transformer ground lead device that the utility model provides; Make oil-filled transformer when mounted; Only need second connector lug be connected on the ground network through earth cable and get final product; Saved many loaded down with trivial details operations of the prior art, easy to operate, improved the transformer installation effectiveness; Also further improved simultaneously the security reliability of transformer.
Description of drawings
Fig. 1 is the structural representation of the utility model oil-filled transformer ground lead device embodiment;
Fig. 2 is the end view of Fig. 1.
Embodiment
Present embodiment provides a kind of oil-filled transformer ground lead device; Please see figures.1.and.2; Comprise: a tubular, be used for fixing the matrix 10 on the sidewall that is located in oil tank of transformer; The two ends of matrix 10 have opening respectively, and the two ends of matrix 10 are fixedly connected the sealing plate 11 and ground plate 12 that is useful on this opening of covering sealing respectively; Sealing plate 11 is positioned at and is formed with at least one first connector lug 21 that is used to connect earth connection 4 on the end face of oil tank of transformer; Ground plate 12 is positioned on the outer end face of oil tank of transformer and is formed with second connector lug 22 that is used to be connected to ground network, is electrically connected through stube cable 3 between sealing plate 11 and the ground plate 12.
Particularly, matrix 10 can be for being the thin wall cylinder of prism-shaped or columned hollow, and the two ends of this thin wall cylinder then are above-mentioned opening, and certainly, matrix 10 also can be one cube of housing, on two opposing end faces of this housing, offers through hole as above-mentioned opening; Body 10 can fixedly be located in any position on the sidewall of oil tank of transformer, optimally, can be arranged on the following joint sidewall of oil tank of transformer.Except that first connector lug 21 and the position that is used to be connected stube cable 3, can be coated with insulating material on the sealing plate 11, same, except that second connector lug 22 and the position that is used to be connected stube cable 3, also can be coated with insulating material on the ground plate 12; Be connected earth connection 4, the stube cable 3 on first connector lug like this and be connected the earth cable 5 that being used on second connector lug be connected on the ground network and form a unique conductive path, reached the purpose of single-point grounding.
The oil-filled transformer ground lead device that present embodiment provides; Can in the process of making transformer, directly fixedly be located on its sidewall; And guarantee that first connector lug 21 is connected with the earth connection 4 of iron core or transformer folder; Thereby make that when oil-filled transformer is installed only need be connected to second connector lug 22 on the ground network through earth cable 5 and get final product, and have saved the operation of in the prior art earth connection being introduced insulating sleeve and being drawn; Simplify installation procedure, improved the transformer installation effectiveness; Also avoided simultaneously introducing and drawing when operating and bump brokenly the insulation sheath of insulating sleeve or earth connection, thereby reduced the potential safety hazard in the oil-filled transformer course of work.
In the above-described embodiments, preferably, sealing plate 11 is the insulated enclosure plate; Ground plate 12 is the insulation ground plate; Sealing plate 11 and ground plate 12 can be fixedly attached on the matrix 10 through mode such as be spirally connected, with for convenience detach, and; In order to reach better sealing effectiveness, also can between sealing plate 11 and ground plate 12 and matrix 10, sealing gasket 13 be set respectively; Like this,, also can rely on the sealing function of sealing plate 11, ground plate 12 pulled down replacing, thereby make this oil-filled transformer thread guide devices have better sealing, also be more convenient for safeguarding even oil leakage phenomenon has taken place ground plate 12.
In the utility model one embodiment, as shown in Figure 1, sealing plate 11 is the insulated enclosure plate, and ground plate 12 is the insulation ground plate.Be formed with the 3rd connector lug 23 that is formed with at least one on the relative other end of the end face of first connector lug 21 on the sealing plate 11 and with sealing plate 11; Be formed with the 4th connector lug 24 that is formed with at least one on the relative other end of the end face of second connector lug 22 on the ground plate 12 and with ground plate 12; The 3rd connector lug 23 is connected through stube cable 3 with the 4th connector lug 24, and promptly the two ends of stube cable 3 are connected on the 3rd connector lug 23 and the 4th connector lug 24.
Further, can fixedly be equipped with two first conductive poles on the insulated enclosure plate, the two ends that this conductive pole stretches out insulated enclosure plate both sides are respectively first connector lug 21 and the 3rd connector lug 23, and two first connector lugs 21 are through the first short circuit sheet, 211 short circuits; Can fixedly be equipped with two second conductive poles on the insulation ground plate, the two ends that this second conductive pole stretches out insulation ground plate both sides are respectively the 4th connector lug 24 and second connector lug 22, and two second connector lugs 22 are through the second short circuit sheet, 221 short circuits.That is to say that the manufacturing of sealing plate 11 and ground plate 12 can be adopted following mode, can good conductive material be processed first conductive pole and second conductive pole and be located in respectively on insulated enclosure plate and the insulation ground plate, and fix through moulding by casting; At this moment, owing to earth connection 4 and earth cable 5 are connected on one of them of two first connector lugs 21 and second connector lug 22, so need two first connector lug 21 short circuits, two second connector lugs 22 be distinguished short circuit separately; Simultaneously, when needing some parameter of measuring transformer, can directly the second short circuit sheet 221 be opened, utilize second connector lug 22 that does not connect earth cable 5 to connect measuring circuit and get final product.It is thus clear that the sealing plate of present embodiment is simple with the ground plate manufacturing, and can satisfies transformer parameter and measure demand, manufacturing, the maintenance cost of having practiced thrift transformer.
Further; It is cylindric that matrix 10 can be; Be formed with the flange 101 that is used for fixing on the sidewall that is connected to oil tank of transformer on the lateral surface that is the face of cylinder of matrix 10, for example, can on flange 101, offer a plurality of installing holes; Utilize bolt to pass installing hole respectively and matrix is screwed on the sidewall of oil tank of transformer, to make things convenient for the operation that is connected between this oil-filled transformer termination and the transformer-cabinet.
In the above-described embodiments; As shown in Figure 1; The edge of ground plate 12 is fixedly connected with an installing sleeve 6, is fixedly connected with an end cap 61 on the installing sleeve 6, and second connector lug 22 of at least one is positioned at the ccontaining cavity that installing sleeve 6 and end cap 61 surround; Offer through the hole on installing sleeve 6 or the end cap 61, so that earth cable 5 is connected to ground network after being passed through the hole by this.Particularly, an end of installing sleeve 6 can be spirally connected through fastening bolt and be fixed on the end face of ground plate 12, on the lateral surface of the other end of installing sleeve 6 screw thread can be set, and the end cap 61 that is used to cover this end opening place can be screwed onto installing sleeve 6; Like this, when needs are changed ground plate 12 or needed to measure, end cap 61 is screwed to get off to get final product, and when operate as normal, being provided with of installing sleeve and end cap can be prevented dust, discharged water, and helps improving the useful life of this device.
What should explain at last is: above each embodiment is only in order to the technical scheme of explanation the utility model, but not to its restriction; Although the utility model has been carried out detailed explanation with reference to aforementioned each embodiment; Those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, perhaps to wherein part or all technical characteristic are equal to replacement; And these are revised or replacement, do not make the scope of each embodiment technical scheme of essence disengaging the utility model of relevant art scheme.
Claims (6)
1. oil-filled transformer ground lead device; It is characterized in that; Comprise: a tubular, be used for fixing the matrix on the sidewall that is located in oil tank of transformer; The two ends of said matrix have opening respectively, and the two ends of said matrix are fixedly connected sealing plate and the ground plate that is useful on the said opening of covering sealing respectively; Said sealing plate is positioned at and is formed with at least one first connector lug that is used to connect earth connection on the end face in the oil tank of transformer; Said ground plate is positioned on the outer end face of said oil tank of transformer and is formed with second connector lug that is used to be connected to ground network, is electrically connected through stube cable between said sealing plate and the said ground plate.
2. oil-filled transformer ground lead device according to claim 1 is characterized in that said sealing plate is the insulated enclosure plate, and said ground plate is the insulation ground plate, and said insulation ground plate and said insulated enclosure plate are screwed onto on the matrix respectively.
3. oil-filled transformer ground lead device according to claim 2; It is characterized in that; Be formed with the 3rd connector lug that is formed with at least one on the relative other end of the end face of said first connector lug on the said sealing plate and with said sealing plate; Be formed with the 4th connector lug that is formed with at least one on the relative other end of the end face of said second connector lug on the said ground plate and with said ground plate, said the 3rd connector lug is connected through said stube cable with said the 4th connector lug.
4. oil-filled transformer ground lead device according to claim 3 is characterized in that said matrix is cylindric, is formed with the flange that is used for fixing on the sidewall that is connected to said oil tank of transformer on the lateral surface that is the face of cylinder of said matrix.
5. oil-filled transformer ground lead device according to claim 3; It is characterized in that; Fixedly be equipped with two first conductive poles on the said insulated enclosure plate; The two ends that said conductive pole stretches out said insulated enclosure plate both sides are respectively said first connector lug and said the 3rd connector lug, and two said first connector lugs are through the first short circuit sheet short circuit; Fixedly be equipped with two second conductive poles on the said insulation ground plate; The two ends that said second conductive pole stretches out said insulation ground plate both sides are respectively said the 4th connector lug and said second connector lug, and two said second connector lugs are through the second short circuit sheet short circuit.
6. according to the arbitrary described oil-filled transformer ground lead device of claim 1 to 5; It is characterized in that; The edge of said ground plate is fixedly connected with an installing sleeve; Be fixedly connected with an end cap on the said installing sleeve, said second connector lug of at least one is positioned at the ccontaining cavity that said installing sleeve and said end cap surround, and offers through the hole on said installing sleeve or the said end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205673226U CN202422914U (en) | 2011-12-30 | 2011-12-30 | Ground lead device for oil-immersed transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205673226U CN202422914U (en) | 2011-12-30 | 2011-12-30 | Ground lead device for oil-immersed transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202422914U true CN202422914U (en) | 2012-09-05 |
Family
ID=46747650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205673226U Expired - Fee Related CN202422914U (en) | 2011-12-30 | 2011-12-30 | Ground lead device for oil-immersed transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202422914U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105448471A (en) * | 2015-12-02 | 2016-03-30 | 山东电力设备有限公司 | Transformer grounding device |
| CN108172377A (en) * | 2016-12-08 | 2018-06-15 | 天威保变(合肥)变压器有限公司 | A kind of Transformer Core Grounding pin configuration |
-
2011
- 2011-12-30 CN CN2011205673226U patent/CN202422914U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105448471A (en) * | 2015-12-02 | 2016-03-30 | 山东电力设备有限公司 | Transformer grounding device |
| CN108172377A (en) * | 2016-12-08 | 2018-06-15 | 天威保变(合肥)变压器有限公司 | A kind of Transformer Core Grounding pin configuration |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20161230 |