CN2741158Y - Low-voltage outlet device of underground transformer - Google Patents
Low-voltage outlet device of underground transformer Download PDFInfo
- Publication number
- CN2741158Y CN2741158Y CN 200420079725 CN200420079725U CN2741158Y CN 2741158 Y CN2741158 Y CN 2741158Y CN 200420079725 CN200420079725 CN 200420079725 CN 200420079725 U CN200420079725 U CN 200420079725U CN 2741158 Y CN2741158 Y CN 2741158Y
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- Prior art keywords
- low
- underground transformer
- cable
- utility
- model
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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
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Abstract
The utility model relates to a low-voltage outlet device of underground transformer. The device of is formed by an insulated material pouring body whose upper and lower two ends are in the shape of conicalness, and the insulated material pouring body is penetrated through by the welding portion of a low-voltage leading wire copper bar and the electrical cable. In the utility model, the sealing problem between the electrical cable and the box cover of the underground transformer is solved, to make the sealing effect of the connection part between the low-voltage outlet of underground transformer and the electric cable excellent; the utility model has the advantages of simple and quick installation, and low cost.
Description
Technical field
The utility model relates to a kind of hermetically sealed underground transformer low pressure outgoing line device that requires waterproof.
Background technology
Underground transformer is the newcomer in the transformer family, as its name suggests, its service position is in the following melt pit in the face of land, must guarantee still can normally move under its situation of in melt pit, advancing full water, so require underground transformer casing and the above outlet of case lid partly to have the sealing property of strictness with the junction of external cable.
At present, the high-low pressure outlet of underground transformer, general three cores or the quad of adopting directly passes the outlet of transformer case lid, this just makes that the sealing difficulty between cable and the case lid is quite big, the general cable connector that adopts, it is a kind of sealing ring of nut compression type, its operation principle is such: weld the flange that certain altitude is arranged earlier on casing, allow cable from wherein passing, use the semicircle block rubber of two suitable thickness involutory again, fill in the gap between cable and the flange, use screw-driving, rubber is tightened up, and extruded cable and flange are to reach the effect of sealing.Method is similar therewith in other various sealings.This class sealing cost height, operation easier is big, and coefficient of safety is low, and particularly cable core will add sealing device specially, and effect is not so good.
Summary of the invention
Technical problem to be solved in the utility model provides that a kind of cost is low, good sealing effect, easy-to-install underground transformer low pressure outgoing line device.
For solving the technical scheme that above technical problem adopts is such: this device is made into the tapered insulating material pour mass of upper/lower terminal, allows the weld of low-voltage lead copper bar and cable run through wherein.
Owing to adopt such scheme, can make the outlet of underground transformer low pressure be connected good sealing effect partly with external cable, and cost is low, and has solved the sealing problem between cable and the underground transformer case lid, install simple and quick.
Description of drawings
Fig. 1 is vertical section structure figure of the present utility model.
Fig. 2 is an installation sketch of the present utility model.
Among the figure: 1, cable sheath 2, cable copper core 3, cable copper core and copper bar weld 4, copper bar 5, flange 6, hold down gag 7, sealing ring 8, transformer case lid
Embodiment
As Fig. 1, underground transformer low pressure outgoing line device is made into the tapered insulating material pour mass of upper/lower terminal, the weld of low-voltage lead copper bar and cable runs through wherein.During concrete the making, according to the capacity of transformer, the low-voltage copper bar and the cable of selected certain-length, cable one end is peelled off one section crust, it and copper bar one end are welded, again weld is put into particular manufacturing craft central authorities and poured into a mould, adopt glass fibre as filler, the injection ring epoxy resins.The mould upper/lower terminal has tapered cavity, and waist has the flange cavity that designs in advance.After the cooling and demolding, just obtain underground transformer low pressure outgoing line device of the present utility model.
When installing and using, see Fig. 2, the utility model is installed on the underground transformer case lid (8), cable and flange are on case lid, copper bar is under case lid, between flange and underground transformer case lid (8), sealing ring (7) is set, compresses sealing by the hold down gag on the case lid (6) then.
Claims (2)
1, a kind of underground transformer low pressure outgoing line device is characterized in that: this device is an insulating material pour mass that upper/lower terminal is tapered, and low-voltage lead copper bar (4) runs through wherein with the weld of cable copper core (2).
2, underground transformer low pressure outgoing line device according to claim 1 is characterized in that: the waist at device has and the flange (5) that installs disposal pouring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420079725 CN2741158Y (en) | 2004-09-23 | 2004-09-23 | Low-voltage outlet device of underground transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420079725 CN2741158Y (en) | 2004-09-23 | 2004-09-23 | Low-voltage outlet device of underground transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2741158Y true CN2741158Y (en) | 2005-11-16 |
Family
ID=35351442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420079725 Expired - Fee Related CN2741158Y (en) | 2004-09-23 | 2004-09-23 | Low-voltage outlet device of underground transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2741158Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106680561A (en) * | 2016-11-18 | 2017-05-17 | 国家电网公司 | Dual-gas chamber direct-current voltage divider |
| CN108281864A (en) * | 2018-01-19 | 2018-07-13 | 台州永创电气有限公司 | Integrated transformer platform and its prefabricated busbar |
| CN108492969A (en) * | 2018-03-15 | 2018-09-04 | 湖南弘秀复合绝缘材料科技有限公司 | A kind of high-voltage mutual inductor secondary connection plate and its processing method |
-
2004
- 2004-09-23 CN CN 200420079725 patent/CN2741158Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106680561A (en) * | 2016-11-18 | 2017-05-17 | 国家电网公司 | Dual-gas chamber direct-current voltage divider |
| CN106680561B (en) * | 2016-11-18 | 2023-08-15 | 国家电网公司 | Double-air-chamber direct-current voltage divider |
| CN108281864A (en) * | 2018-01-19 | 2018-07-13 | 台州永创电气有限公司 | Integrated transformer platform and its prefabricated busbar |
| CN108492969A (en) * | 2018-03-15 | 2018-09-04 | 湖南弘秀复合绝缘材料科技有限公司 | A kind of high-voltage mutual inductor secondary connection plate and its processing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051116 Termination date: 20091023 |