CN202167332U - Underground transformer - Google Patents
Underground transformer Download PDFInfo
- Publication number
- CN202167332U CN202167332U CN2011202679292U CN201120267929U CN202167332U CN 202167332 U CN202167332 U CN 202167332U CN 2011202679292 U CN2011202679292 U CN 2011202679292U CN 201120267929 U CN201120267929 U CN 201120267929U CN 202167332 U CN202167332 U CN 202167332U
- Authority
- CN
- China
- Prior art keywords
- cable joint
- inlet wire
- electrically connected
- transformer
- 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 - Lifetime
Links
Images
Landscapes
- Housings And Mounting Of Transformers (AREA)
Abstract
The utility model discloses an underground transformer, which belongs to the technical field of transformer design and manufacture and comprises a transformer oil tank, wherein a high-voltage wire inlet connector and a low-voltage wire inlet connector are arranged on a tank cover of the oil tank, and the low-voltage wire inlet connector is electrically connected with an external wire outlet cable through a T-shaped cable joint. A crimp terminal and a connection screw are arranged in the T-shaped cable joint, wherein the crimp terminal is used for being fixedly connected with the external wire outlet cable, and the connection screw is electrically connected with the crimp terminal. The T-shaped cable joint is inserted in the low-voltage wire inlet connector, and the connection screw is connected with the low-voltage wire inlet connector so that the low-voltage wire inlet connector can be electrically connected with a bonding terminal. An insulation layer is arranged on the T-shaped cable joint outside the crimp terminal and the connection screw. The underground transformer solves problems that the existing joint is slightly lower in safety factor and poor in sealing and waterproof effects.
Description
Technical field
The utility model belongs to design of transformer and makes field, particularly a kind of oil-filled transformer.
Background technology
Domestic underground transformer low pressure outlet major part is to adopt binding post directly to be connected with low-voltage cable, re-uses a guard box and is welded in and carries out insulation processing on the fuel tank case lid.The drawback of this structure is: even binding post and low-voltage cable have the sealing of guard box, but the junction of binding post and low-voltage cable is exposed, and in the transformer operation, always have the phenomenon of discharge, fail safe is not high; In addition, transformer is using certain time limit, and perhaps transformer breaks down when needing maintenance in operation; Use the above-mentioned mode of connection, just must disassemble, just can overhaul or safeguard the guard box of welding; After the maintenance, again guard box is welded, workload is quite big.
The utility model content
For this reason, the utility model technical problem to be solved is that the low pressure outlet mode of connection coefficient of safety of existing underground transformer is low, and then a kind of underground transformer that can guarantee wiring safety is provided.
For solving the problems of the technologies described above; A kind of underground transformer of the utility model; It comprises oil tank of transformer, and the case lid of said fuel tank is provided with high pressure inlet wire connector and low pressure goes out wiring connector, and the binding post of said low pressure inlet wire connector is electrically connected with outside outlet cable through a T shape cable joint; Be provided with the crimp type terminal that is used for said outside outlet cable fixed connection in said T type cable joint inside; And the attachment screw that is electrically connected with said crimp type terminal, said T type cable joint inserts in the said low pressure inlet wire connector, and said attachment screw is connected with said low pressure inlet wire connector; Realize being electrically connected with said binding post, said T type cable joint is provided with insulating barrier.
Said high pressure inlet wire connector is electrically connected with outside inlet wire cable through a T shape cable joint.
Said T shape cable joint skin has been provided with the screen of shielding action.
Said T type cable joint is provided with insulating plug in a side that does not have stube cable.
The technique scheme of the utility model is compared prior art and is had the following advantages:
(1) the low pressure inlet wire connector of the underground transformer of the utility model is electrically connected with outside outlet cable through a T shape cable joint.The insulating barrier that T connector is inner, screen, earth connection, insulate in positions such as insulating plug, and coefficient of safety improves widely.
(2) skin of T type cable joint plays the screen of shielding action, and is tangible, guarantees personal safety.
(3) use T connector, under the situation of outage, pull up insulating plug and just can detect, very convenient.During installation, after low-voltage cable and binding post connected, directly can pack on the corresponding insulation sleeve pipe, do last sealing with insulating plug and get final product.The T connector exquisite appearance reduces the transformer height, convenient transportation.
Description of drawings
For the content that makes the utility model is more clearly understood,, the utility model is done further detailed explanation, wherein below according to the specific embodiment of the utility model and combine accompanying drawing
Fig. 1 is the structural representation of the underground transformer of the utility model;
Fig. 2 is the profile of T type cable joint.
Reference numeral is expressed as among the figure:
The outside inlet wire cable of the outside outlet cable of 1-T shape cable joint 2-low pressure inlet wire connector 21-5-fuel tank 6-high pressure inlet wire connector 61-11-crimp type terminal 12-attachment screw 13-insulating plug 14-insulating barrier 15-screen 16-earth connection.
Embodiment
Fig. 1 is the underground transformer of the utility model, and the transformer of this execution mode is the non-crystaline amorphous metal underground transformer, and it comprises fuel tank 5 and device body; Said fuel tank 5 comprises at the bottom of case lid, tank wall, the case.Connect into the housing parts of transformer at the bottom of case lid, tank wall, the case through welded seal; Case lid is installed a pressure relief valve; Case lid also is provided with high-voltage cable connector and low-voltage cable connector, is used for the connection of product turnover line; Transformer is provided with special fuse, prevents that the high pressure inlet wire current is too high and damages the transformer internal components; Said high pressure inlet wire connector 6 is electrically connected with outside inlet wire cable 61 through a T shape cable joint 1, and said low pressure inlet wire connector 2 is electrically connected with outside outlet cable 21 through a T shape cable joint 1.As shown in Figure 2; Be provided with the crimp type terminal 11 that is used for said outside outlet cable 21 fixed connections in said T type cable joint 1 inside, and the attachment screw 12 that is electrically connected with said crimp type terminal 11, said T type cable joint 1 inserts in the said low pressure inlet wire connector 2; Said attachment screw 12 is connected with said low pressure inlet wire connector 2; Realize being electrically connected with said binding post, its other end is provided with insulating plug 13, when maintenance; Pulling up insulating plug 13 can overhaul, and it is convenient a lot of to disassemble the mode of overhauling again than existing guard box with welding.Said T type cable joint 1 is provided with insulating barrier 14 at said crimp type terminal 11 and attachment screw 12 outsides.Said T shape cable joint 1 skin has been provided with the screen 15 of shielding action.Said T type cable joint 1 also is provided with earth connection 16.
Said device body mainly is made up of iron core, high pressure winding, low pressure winding and insulator.The high-tension coil winding and the low-voltage coil winding of transformer are arranged on the iron core, and the part of being formed is the key component of electromagnetic induction.The non-crystaline amorphous metal that uses unshakable in one's determination does not have lattice arrangement, processes the three-phase five-limb structure.The cross section is a rectangle, and yoke can be opened the suit of being convenient to coil under it.
Obviously, the foregoing description only be for explanation clearly done for example, and be not qualification to execution mode.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all execution modes.And conspicuous variation of being extended out thus or change still are among the protection range of the invention.
Claims (4)
1. underground transformer; It comprises oil tank of transformer (5); The case lid of said fuel tank is provided with high pressure inlet wire connector (6) and low pressure goes out wiring connector (2); It is characterized in that: the binding post of said low pressure inlet wire connector (2) is electrically connected with outside outlet cable (21) through a T shape cable joint (1); Be provided with the crimp type terminal (11) that is used for said outside outlet cable (21) fixed connection in said T type cable joint (1) inside; And the attachment screw (12) that is electrically connected with said crimp type terminal (11), said T type cable joint (1) inserts in the said low pressure inlet wire connector (2), and said attachment screw (12) is connected with said low pressure inlet wire connector (2); Realize being electrically connected with said binding post, said T type cable joint (1) is provided with insulating barrier (14) at said crimp type terminal (11) and attachment screw (12) outside.
2. underground transformer according to claim 1 is characterized in that:
Said high pressure inlet wire connector (6) is electrically connected with outside inlet wire cable (61) through a T shape cable joint (1).
3. underground transformer according to claim 1 and 2 is characterized in that:
Said T shape cable joint (1) skin has been provided with the screen (15) of shielding action.
4. underground transformer according to claim 3 is characterized in that:
Said T type cable joint (1) is provided with insulating plug (13) in a side that does not have stube cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202679292U CN202167332U (en) | 2011-07-27 | 2011-07-27 | Underground transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202679292U CN202167332U (en) | 2011-07-27 | 2011-07-27 | Underground transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202167332U true CN202167332U (en) | 2012-03-14 |
Family
ID=45803144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202679292U Expired - Lifetime CN202167332U (en) | 2011-07-27 | 2011-07-27 | Underground transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202167332U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103413656A (en) * | 2013-08-13 | 2013-11-27 | 上海瑞奇电气设备有限公司 | Underground transformer used in high altitude area |
| CN105448500A (en) * | 2014-09-27 | 2016-03-30 | 刘洋 | Solid-state waterproof underground energy-saving transformer |
| CN106683858A (en) * | 2016-06-27 | 2017-05-17 | 何排枝 | All-insulated buried transformer |
| CN107240848A (en) * | 2017-06-02 | 2017-10-10 | 信阳师范学院 | A kind of all insulation formula bridging method |
| CN110610797A (en) * | 2019-10-22 | 2019-12-24 | 广州番禺电缆集团有限公司 | Transformer wiring device |
| WO2023221387A1 (en) * | 2022-05-17 | 2023-11-23 | 海南金盘智能科技股份有限公司 | High-voltage sealed dry-type transformer |
-
2011
- 2011-07-27 CN CN2011202679292U patent/CN202167332U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103413656A (en) * | 2013-08-13 | 2013-11-27 | 上海瑞奇电气设备有限公司 | Underground transformer used in high altitude area |
| CN105448500A (en) * | 2014-09-27 | 2016-03-30 | 刘洋 | Solid-state waterproof underground energy-saving transformer |
| CN106683858A (en) * | 2016-06-27 | 2017-05-17 | 何排枝 | All-insulated buried transformer |
| CN107240848A (en) * | 2017-06-02 | 2017-10-10 | 信阳师范学院 | A kind of all insulation formula bridging method |
| CN110610797A (en) * | 2019-10-22 | 2019-12-24 | 广州番禺电缆集团有限公司 | Transformer wiring device |
| WO2023221387A1 (en) * | 2022-05-17 | 2023-11-23 | 海南金盘智能科技股份有限公司 | High-voltage sealed dry-type transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202167332U (en) | Underground transformer | |
| CN205845656U (en) | A kind of oil-filled transformer | |
| CN103268847B (en) | Fuse with sleeve structure and mounting method | |
| CN204010983U (en) | A kind of new-type superhigh pressure indirect type outlet structure | |
| CN201274226Y (en) | Oil immersion type bushing sealing cover | |
| CN205724749U (en) | The wall bushing that a kind of dirt exclusion capabilities is strong | |
| CN201966027U (en) | Fully-insulated transformer | |
| CN201230195Y (en) | Water immersion type electric cable plug | |
| CN101740210A (en) | Amorphous alloy 20kV underground transformer | |
| CN203232792U (en) | Three-phase iron-core isolated boosting transformer for ocean platform | |
| CN202473586U (en) | Insulation structure of current transformer for electric locomotive | |
| CN201741557U (en) | Transformer with novel outgoing mode | |
| CN204155678U (en) | A kind of porcelain formula bushing | |
| CN104992823B (en) | Grounding transformer connection method integrated with arc suppression coil and device | |
| CN203967585U (en) | The intellectual pole prefabricated substation that takes of 10KV | |
| CN203552917U (en) | Current transformer for solid-insulation ring main unit | |
| CN102623136A (en) | Full insulating transformer | |
| CN103943343B (en) | Current transformer for ring main unit | |
| CN206710485U (en) | A kind of capacitance type potential transformer of the special oil-leakage-prevention of power equipment | |
| CN203966808U (en) | Distribution transformer | |
| CN206517005U (en) | Terminal box with protective cover | |
| CN203787928U (en) | Oil gas interface lifting device of DC cable terminal | |
| CN206388601U (en) | A kind of Transformer Core Grounding pin configuration | |
| CN202134375U (en) | Transformer | |
| CN202601400U (en) | Anti-creep current transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GUANGDONG CHANGNIU ELECTRIC CO., LTD. Free format text: FORMER NAME: GUANGDONG LONG BULL ELECTRIC CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 528000 Guangdong province Foshan Junye Nanhai District of Shishan science and Technology Industrial Park C District No. 12 North Road Patentee after: Guangdong Changniu Electrical Co., Ltd. Address before: 528000 Guangdong province Foshan Junye Nanhai District of Shishan science and Technology Industrial Park C District No. 12 North Road Patentee before: Guangdong Changniu Electrical Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120314 |