CN214203423U - Oil-immersed transformer and cable connection structure - Google Patents
Oil-immersed transformer and cable connection structure Download PDFInfo
- Publication number
- CN214203423U CN214203423U CN202022975835.2U CN202022975835U CN214203423U CN 214203423 U CN214203423 U CN 214203423U CN 202022975835 U CN202022975835 U CN 202022975835U CN 214203423 U CN214203423 U CN 214203423U
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- cable
- oil
- terminal
- lightning arrester
- copper bar
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Abstract
The utility model provides an oil immersed transformer and cable connection structure, which comprises an oil/air sleeve, a copper bar, a lightning arrester bracket, a cable terminal, a cable bracket and a post insulator, wherein the copper bar is connected with the oil/air sleeve through a connecting bolt; the lightning arrester is fixed on the lightning arrester bracket, and a wiring terminal of the lightning arrester is connected with the copper bar through a connecting bolt; the cable terminal is fixed on the upper part of the cable support, and a wiring terminal of the cable terminal is connected with the copper bar through a connecting bolt; the cable is led up from the cable channel and connected with the cable terminal, and the vertical section of the cable is fixed on the side surface of the cable bracket through the post insulator. The utility model discloses can be applied to the cable and be connected with oil-immersed transformer, the installation, dismantle the convenience, the transformer of being convenient for overhauls and maintains.
Description
Technical Field
The utility model relates to an electrical equipment installs the field, especially relates to an oil-immersed transformer and cable junction structure.
Background
The transformer is widely applied to power generation, transmission and distribution places such as power plants, transformer substations, factories and markets, and the leading-out conductors of the transformer can be cables, overhead lines, copper bars, closed buses and the like according to the magnitude of output current of the transformer. The cable can be better put away and electrocute, can realize crooked flexible leading and connect, lays advantages such as simple and convenient, usually can give priority to. When the cable is directly connected with the transformer, if the cross section of the cable is larger, insulation damage is most likely to occur at the connection part with the transformer, and voltage reflection is more likely to occur at the connection part to form overvoltage due to the larger wave impedance difference between the transformer and the cable. Chinese patent 201720231309.0 discloses a connection method of a transformer and a cable, which is suitable for cables with low current-carrying capacity and low voltage level. The connection structure capable of realizing the safety and reliability of the large-section cable and the oil-immersed transformer is researched, and has practical value.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an oil-immersed transformer and cable junction structure can be applied to the cable and be connected with oil-immersed transformer. Therefore, the utility model adopts the following technical scheme:
a connection structure of an oil immersed transformer and a cable is characterized by comprising an oil/air sleeve, a copper bar, a lightning arrester bracket, a cable terminal, a cable bracket and a post insulator, wherein the copper bar is connected with the oil/air sleeve through a connecting bolt; the lightning arrester is fixed on the lightning arrester bracket, and a wiring terminal of the lightning arrester is connected with the copper bar through a connecting bolt; the cable terminal is fixed on the upper part of the cable support, and a wiring terminal of the cable terminal is connected with the copper bar through a connecting bolt; the cable is led up from the cable channel and connected with the cable terminal, and the vertical section of the cable is fixed on the side surface of the cable bracket through the post insulator.
Further, the oil/air bushing, the lightning arrester and the connecting terminal of the cable terminal are located at the same height.
Furthermore, the cable trench is close to the end of the oil-immersed transformer, the direction of the cable trench is aligned with the oil/air sleeve, and the cable support is correspondingly arranged beside the end of the cable trench.
The utility model discloses it is to have following beneficial effect at least:
1. the cable is led up by the cable trench, only one right-angle elbow is provided, and 180-degree bend is avoided, so that the cable is not easy to damage;
2. the lightning arrester can effectively inhibit overvoltage between the oil/air sleeve and the cable terminal;
3. the installation and the disassembly are convenient, and the maintenance of the transformer is convenient.
Drawings
Fig. 1 is a plan view of an embodiment of the present invention.
Fig. 2 is a sectional view taken along line a-a of fig. 1.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
Reference is made to the accompanying drawings. The utility model provides a pair of oil immersed transformer and cable junction structure, including oil/air sleeve 1, copper bar 2, arrester 3, arrester support 4, cable terminal 5, cable support 6, post insulator 7. The copper bar 2 is connected with the oil/air sleeve 1 through a connecting bolt 91; the lightning arrester 3 is fixed on the lightning arrester support 4, and a wiring terminal of the lightning arrester 3 is connected with the copper bar 2 through a connecting bolt 92; the cable terminal 5 is fixed on the cable support 6, the cable trench 100 is close to one end of the oil-immersed transformer, the direction of the cable trench is aligned with the oil/air sleeve 1, the cable support 6 is correspondingly arranged beside the end part of one end of the cable trench 100, and a wiring terminal of the cable terminal 5 is connected with the copper bar 2 through a connecting bolt 93; the cable 8 is led up by the cable trench 100 and has only one elbow bend, the vertical section of the cable 5 is fixed on the side surface of the cable support 6 through the post insulator 7, and the upper end of the cable 8 is connected with the cable terminal 5. The post insulator 7 may be a dry porcelain bushing insulator.
The oil/air sleeve 1, the lightning arrester 3 and the wiring terminals of the cable terminal 5 are positioned at the same height.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, i.e. all equivalent changes and modifications made according to the present invention are covered by the scope of the claims of the present invention, which is not illustrated herein.
Claims (3)
1. A connection structure of an oil immersed transformer and a cable is characterized by comprising an oil/air sleeve, a copper bar, a lightning arrester bracket, a cable terminal, a cable bracket and a post insulator, wherein the copper bar is connected with the oil/air sleeve through a connecting bolt; the lightning arrester is fixed on the lightning arrester bracket, and a wiring terminal of the lightning arrester is connected with the copper bar through a connecting bolt; the cable terminal is fixed on the upper part of the cable support, and a wiring terminal of the cable terminal is connected with the copper bar through a connecting bolt; the cable is led up from the cable channel and connected with the cable terminal, and the vertical section of the cable is fixed on the side surface of the cable bracket through the post insulator.
2. The oil transformer and cable connection structure of claim 1, wherein the oil/air bushing, the lightning arrester, and the terminal of the cable terminal are located at the same height.
3. An oil transformer and cable connection according to claim 1, wherein the cable groove is located near the end of the oil transformer and is oriented towards the oil/air bushing, and the cable support is correspondingly located near the end of the cable groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022975835.2U CN214203423U (en) | 2020-12-09 | 2020-12-09 | Oil-immersed transformer and cable connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022975835.2U CN214203423U (en) | 2020-12-09 | 2020-12-09 | Oil-immersed transformer and cable connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214203423U true CN214203423U (en) | 2021-09-14 |
Family
ID=77651951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022975835.2U Active CN214203423U (en) | 2020-12-09 | 2020-12-09 | Oil-immersed transformer and cable connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214203423U (en) |
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2020
- 2020-12-09 CN CN202022975835.2U patent/CN214203423U/en active Active
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