CN2641779Y - Seal type underground distribution transformer - Google Patents
Seal type underground distribution transformer Download PDFInfo
- Publication number
- CN2641779Y CN2641779Y CN 03248452 CN03248452U CN2641779Y CN 2641779 Y CN2641779 Y CN 2641779Y CN 03248452 CN03248452 CN 03248452 CN 03248452 U CN03248452 U CN 03248452U CN 2641779 Y CN2641779 Y CN 2641779Y
- Authority
- CN
- China
- Prior art keywords
- transformer
- distribution transformer
- case lid
- outgoing line
- cable
- Prior art date
- 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
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Abstract
The utility model relates to a seal type underground distribution transformer which comprises a transformer oil tank body, a tank cover, a transformer body, a high-voltage outgoing line, a high-voltage protection device and a low-voltage outgoing line. The seal type underground distribution transformer is characterized in that the transformer tank body and the tank cover adopt structures that are poured by water-proof and anti-rot materials or molded by one-time compression. The high-voltage outgoing line adopts one-in and one-out, one-in and two-out or one-in and multi-out cable plug-in type structure. All the joints are connected with the tank cover through a cable tapping box in a sealing mode. The low-voltage outgoing line adopts multi-core constant section cables, and the cables and the tank cover are sealed through pouring. The high and the low voltage outgoing line parts adopt a cable joint insert design, and the protection level reaches to IP68. The seal type underground distribution transformer can be installed underground or immersed under water to operate; the problems of the field occupancy of the transformer and extraneous natural environment influence can be solved effectively. The utility model can reduce occupied area and energy consumption and supply power safely and reliably, and is favorable for city rebuilding and integrated planning.
Description
Technical field
The utility model belongs to the power transformer technical field, relates to a kind of distribution transformer that sealingly descends.
Background technology
Existing common distribution transformer generally adopts outdoor platform to place or built on stilts being placed on the electric pole.Along with the construction of urbanization, it is more and more to go deep into intown transformer station, and it is also increasing that it builds difficulty.The transformer room outer platform is placed or built on stiltsly is placed on that not only floor space is big on the electric pole, difficulty of construction is big, and the influence greening, destroys the whole view in city, and is extremely inharmonious with surrounding environment, has a strong impact on the planning construction in city.
Summary of the invention
Technical problem to be solved in the utility model is the defective that will overcome distribution transformer arrangement in the prior art, and provide a kind of distribution transformer that sealingly descends, adopt anticorrosion hermetically sealed design, increase fail safe, effectively solve the problem of transformer occupied ground and extraneous natural environment influence with this.Not only can reduce floor space, cut down the consumption of energy, safe and reliable power supply, and help the reconstruction and the integrated planning in city.
The technical scheme that solution the utility model technical problem is adopted is that sealing formula underground distribution transformer comprises transformer oil casing, case lid, high-voltage terminal, low pressure outlet, expander, high voltage protective, shunting switch, it is characterized in that:
1. oil tank of transformer and case lid adopt thermosetting or thermoplastic (as fiberglass and epoxy resin) cast or disposable moulded section structure anticorrosion, waterproof;
2. high-voltage terminal adopts the cable plug formula structure that one-in-and-one-out, one-in-and-two-out or advance to have more, and has made things convenient for the parallel running of distribution transformer, and all joints are tightly connected by pull box and case lid;
3. high pressure protector is connected in series the current-limiting protection that realizes transformer with the high pressure three-phase by 3 HPC fusion tubes.When transformer is positioned at when underground, can effectively play the effect of current-limiting protection.When transformer was subjected to the short-circuit current rush overrate, fuse opening reached the effect of protection transformer body.
4. low-pressure section adopts multicore uiform section cable to draw, and the poured with epoxy resin sealing is adopted in the junction of cable and case lid;
5. the case lid place is provided with expander, can satisfy the expansion that transformer is positioned at the internal gas and the oil in underground when operation.
Cast of the utility model shell or compression molding, the external form compactness is attractive in appearance; Adopt the design of cable joint plug-in type, waterproof, corrosion-resistant, degree of protection reaches IP68, can imbed underground or be immersed in the water and move.Reliability when having guaranteed that by above technical characterictic product is positioned at underground installation and operation and fail safe.The utility model can directly be placed in the cement straight well and move, because this transformer is positioned at underground, can plant greening lawn above it, build highway, therefore can be widely used in the construction of airport, bridge, highway and commercial center, for urban land has been saved a large amount of expensive real estate.
Description of drawings
The utility model will be further described below in conjunction with the embodiment accompanying drawing.
Fig. 1 is a front view of the present utility model
Fig. 2 is a vertical view of the present utility model
1-casing 2-case lid 3-fastening bolt 4-device body 5-high-voltage terminal 6-high pressure protector 7-low pressure outlet 8-expander 9-bleeder screw 10-lock 11-cement straight well 12-rodent-proof mesh 13-protective cover among the figure
Embodiment
The utility model is embodiment with a 6/0.4kV underground distribution transformer, its mainly comprise transformer-cabinet 1, case lid 2, device body 4, high-voltage terminal 5,, high pressure protector 6, low pressure outlet 7 and expander 8 etc.Casing 1 and case lid 2 adopt, and thermosetting or thermoplastic (as fiberglass and epoxy resin) anticorrosion, waterproof are poured into a mould or disposable moulded section structure, case lid 2 closely is connected with casing 1 by 8 groups of fastening bolts 3, guarantees that rainwater can't infiltrate the device body 4 that influences transformer in the casing 1 through case lid 2.High-voltage terminal 5 is that the pull box of one-in-and-one-out is connected with case lid 2; high pressure protector 6 is by realizing at high pressure three-phase serial connection HPC fusion tube; when short circuit current surpasses blowout current, the fusing of the fusible core of HPC fusion tube, thus effectively protect transformer not burnt.Low pressure outlet 7 adopts 5 core uiform section cables to draw, and cable adopts cast sealing (material and case lid are identical) with the joint of case lid 2, prevents that rainwater from passing through the cable junction and infiltrating casing.Case lid 2 is provided with for the respiratory expander 8 of transformer, and bleeder screw 9 is equipped with on the expander top, turns on bleeder screw 9 and the gas in the expander 8 can be discharged.The utility model distribution transformer body places cement straight well 11 to install, and when the degree of depth of cement straight well 11 was put into the shaft bottom with transformer, case lid 2 was advisable for about 1 meter apart from ground.With lock 10 rodent-proof mesh 12 and protective cover 13 are installed directly over transformer.
Claims (4)
1; a kind of distribution transformer that sealingly descends; comprise transformer oil casing (1); case lid (2); device body (4); high-voltage terminal (5); high pressure protector (6); low pressure outlet (7); it is characterized in that: transformer-cabinet (1) and case lid (2) adopt waterproof; anti-corrosion material cast or once molding formed structure; high-voltage terminal (5) adopts one-in-and-one-out; one-in-and-two-out or one advances to have more cable plug-in structure; all joints are tightly connected by pull box and case lid (2); multicore uiform section cable is adopted in low pressure outlet (7), and cable and case lid (2) are located by the cast sealing.
2, the distribution transformer that sealingly descends according to claim 1, it is characterized in that: case lid (2) is provided with for the respiratory expander of transformer (8), bleeder screw (9) is equipped with on the expander top, can satisfy the expansion that transformer is positioned at the internal gas and the oil in underground when operation.
3, the distribution transformer that sealingly descends according to claim 1 and 2 is characterized in that: high pressure protector (6) is connected in series the current-limiting protection that realizes transformer with the high pressure three-phase by 3 HPC fusion tubes.
4, the distribution transformer that sealingly descends according to claim 1 and 2 is characterized in that distribution transformer is positioned over installation in the cement straight well (11), is equipped with the rodent-proof mesh (12) and the protective cover (13) of (10) with lock directly over it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03248452 CN2641779Y (en) | 2003-08-06 | 2003-08-06 | Seal type underground distribution transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03248452 CN2641779Y (en) | 2003-08-06 | 2003-08-06 | Seal type underground distribution transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2641779Y true CN2641779Y (en) | 2004-09-15 |
Family
ID=34293194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03248452 Expired - Fee Related CN2641779Y (en) | 2003-08-06 | 2003-08-06 | Seal type underground distribution transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2641779Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104078203A (en) * | 2014-06-06 | 2014-10-01 | 上海瑞奇电气设备股份有限公司 | Energy-saving and emission-reduction intelligent underground transformer |
| CN104234669A (en) * | 2014-09-08 | 2014-12-24 | 刘松岭 | Frequency conversion non-stop stroke adjustment and specific water-cycle adjustment device for pumping unit |
| CN107195441A (en) * | 2017-07-05 | 2017-09-22 | 佛山杰致信息科技有限公司 | A kind of subway transformer |
| CN107192503A (en) * | 2017-05-31 | 2017-09-22 | 国网浙江省电力公司电力科学研究院 | A kind of high-voltage cable middle joint environment water level simulation test device |
| CN113766714A (en) * | 2020-06-02 | 2021-12-07 | 璞洛泰珂(上海)智能科技有限公司 | Parallel single-lamp control system based on optical fiber communication and applied to airport navigation aid |
-
2003
- 2003-08-06 CN CN 03248452 patent/CN2641779Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104078203A (en) * | 2014-06-06 | 2014-10-01 | 上海瑞奇电气设备股份有限公司 | Energy-saving and emission-reduction intelligent underground transformer |
| CN104234669A (en) * | 2014-09-08 | 2014-12-24 | 刘松岭 | Frequency conversion non-stop stroke adjustment and specific water-cycle adjustment device for pumping unit |
| CN107192503A (en) * | 2017-05-31 | 2017-09-22 | 国网浙江省电力公司电力科学研究院 | A kind of high-voltage cable middle joint environment water level simulation test device |
| CN107192503B (en) * | 2017-05-31 | 2023-09-08 | 国网浙江省电力公司电力科学研究院 | High-voltage cable intermediate head environmental water level simulation test device |
| CN107195441A (en) * | 2017-07-05 | 2017-09-22 | 佛山杰致信息科技有限公司 | A kind of subway transformer |
| CN107195441B (en) * | 2017-07-05 | 2019-03-29 | 杭州能坊电气有限公司 | A kind of subway transformer |
| CN113766714A (en) * | 2020-06-02 | 2021-12-07 | 璞洛泰珂(上海)智能科技有限公司 | Parallel single-lamp control system based on optical fiber communication and applied to airport navigation aid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |