CN202523535U - Body structure of 66kV level rectifier transformer - Google Patents
Body structure of 66kV level rectifier transformer Download PDFInfo
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- CN202523535U CN202523535U CN2012201758802U CN201220175880U CN202523535U CN 202523535 U CN202523535 U CN 202523535U CN 2012201758802 U CN2012201758802 U CN 2012201758802U CN 201220175880 U CN201220175880 U CN 201220175880U CN 202523535 U CN202523535 U CN 202523535U
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Abstract
The utility model relates to a body structure of 66kV level rectifier transformer, and solves the technical problem that a body structure of a current 35kV level rectifier transformers often cannot meet the operating requirements of a current 66kV level DC traction line. The body structure of 66kV level rectifier transformer comprises a hollow shell, wherein the case is internally provided with a high-voltage coil and a low-voltage coil; the high-voltage coil is provided with an iron yoke insulation, the head end of the high-voltage coil, the end of the high-voltage coil and the high-voltage coil; and the low-voltage coil is provided with the head end of the low voltage coil, the end of the low-voltage coil and the low-voltage coil. The body structure of 66kV level rectifier transformer is characterized in that the low-voltage coil is sleeved outside the high-voltage coil; electrostatic rings are mounted between the head end as well as the end of the high-voltage coil and the high-voltage coil. According to the utility model, the end of the high-voltage coil is provided with uniformly distributed electrical field; the creepage distance of the high-voltage coil is long; the insulating strength is reliable; and the overload and short-circuit resistance abilities are strong, so that the operating requirements of the current DC traction line can be met, moreover, the outlet of low-voltage coil is convenient, and the installation is time-saving and labor-saving.
Description
Technical field
The utility model relates to rectifier transformer manufacturing technology field, especially a kind of machine body structure of 66kV level rectifier transformer.
Background technology
Rectifier transformer is as the power transformer of rectifying device, and its effect is to rectifier AC power to be provided, and rectifier is transformed to direct current with alternating current again, thereby carries out direct current supply, is mainly used in industries such as metallurgy, chemical industry, locomotive traction and transmission.At present, domestic employed rectifier transformer is 35kV and following electric pressure mostly, and the line loss of 35kV and following electric pressure rectifier transformer power transformation operation is big, and operating cost is high.Along with the fast development of China's modern industrialization, electric network reconstruction, voltage raises, and the rectifier transformer of 66kV level arises at the historic moment, and the machine body structure of existing 35kV level rectifier transformer has often satisfied not the instructions for use of present 66kV level DC traction circuit.
The utility model content
The purpose of the utility model is for the deficiency that solves above-mentioned prior art a kind of machine body structure that can satisfy the 66kV level rectifier transformer of DC traction circuit instructions for use to be provided.
In order to achieve the above object; The machine body structure of a kind of 66kV level rectifier transformer that the utility model designed; Comprise hollow housing; The high-tension coil of band core insulation, high-tension coil head end, high-tension coil end and high-pressure side circle and the low-voltage coil of band low-voltage coil head end, low-voltage coil end and low-pressure end circle are housed in the described housing; It is characterized in that described low-voltage coil is enclosed within the high-tension coil outside; Be equipped with electrostatic ring at high-tension coil head end, high-tension coil between the terminal and high-pressure side circle, said high-tension coil head end, high-tension coil end respectively and be symmetrical set a square ring between the core insulation, said low-voltage coil head end, low-voltage coil end are respectively and also be symmetrical set a square ring between the core insulation.Electrostatic ring can reduce metal surface electric field strength, reduces the maximum of high-tension coil both ends electric field strength, evenly the end Electric Field Distribution; The high-tension coil creepage distance is big; Instructions for use and the low-voltage coil outlet that can satisfy present DC traction circuit are convenient, and it is time saving and energy saving to install.
Improve and replenish as the further of said structure, the utility model also comprises the combination in any of following additional technical feature or these characteristics:
Described housing upper end is provided with the pressing plate that band is pressed nail, makes the device body axially closely tight, can improve the anti-short circuit capability of transformer body.
Described high-tension coil head end and high-tension coil end all adopt is entangled with the formula coiling, and the high-tension coil interlude adopts the continous way coiling, and coiling is reliable, and operational effect is good.
Described low-voltage coil adopts two cake formula coilings, and the coiling of described pair of cake formula is the common coiling that is staggered of star wiring circle and corner connection coil, and coiling is reliable, and operational effect is good.
Leave big oil clearance between described high-tension coil and the low-voltage coil, reserve enough safe insulation distances, dielectric strength is reliable.
The machine body structure of a kind of 66kV level rectifier transformer that the utility model obtains, high-tension coil end electric field evenly distributes; The high-tension coil creepage distance is big; Dielectric strength is reliable; Overload and anti-short circuit capability are strong, and instructions for use and the low-voltage coil outlet that can satisfy present DC traction circuit are convenient, and it is time saving and energy saving to install.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Among the figure: 1-high-tension coil, 2-low-voltage coil, 3-high-tension coil head end, 4-high-tension coil are terminal, 5-tap section is lifted one's head, 6-high-pressure side circle, 7-electrostatic ring, 8-core insulation, 9-square ring, the axial outlet of 10-high-tension coil, 11-low pressure star connect radial outlet, nail, 14-pressing plate, 15-iron core, the big oil clearance of 16-are pressed in the radial outlet of 12-low pressure corner connection, 13-.
Embodiment
Combine accompanying drawing that the utility model is done further to describe through embodiment below.
As shown in Figure 1; The machine body structure of a kind of 66kV level rectifier transformer that present embodiment is described comprises hollow housing, and the high-tension coil 1 of band core insulation 8, high-tension coil head end 3, high-tension coil terminal 4 and high-pressure side circle 6 and the low-voltage coil 2 of band low-voltage coil head end, low-voltage coil end and low-pressure end circle are housed in the described housing; For ease of the low-voltage coil outlet; Described low-voltage coil 2 is enclosed within high-tension coil 1 outside, between high-tension coil head end 3, high-tension coil terminal 4 and high-pressure side circle 6, is equipped with electrostatic ring 7, and purpose is to reduce electrostatic ring metal surface electric field strength; Reduce the maximum of high-tension coil both ends electric field strength, evenly the end Electric Field Distribution.Said high-tension coil head end 3, high-tension coil terminal 4 are respectively and be symmetrical set a square ring 9 between the core insulation 8; Said low-voltage coil head end, low-voltage coil end respectively and also be symmetrical set a square ring between the core insulation can increase the creepage distance of high-tension coil.
Described housing upper end is provided with the pressing plate 14 that band is pressed nail 13, and the device body adopts spring pressed stud 13 to compress, and the certain thickness laminated paper board of pressing plate 14 usefulness is made, and makes the device body axially closely tight, can improve the anti-short circuit capability of transformer body.Described high-tension coil head end 3 all adopts with high-tension coil terminal 4 and is entangled with the formula coiling, and high-tension coil 1 interlude adopts the continous way coiling, and described low-voltage coil 2 adopts two cake formula coilings; The coiling of described pair of cake formula is the common coiling that is staggered of star wiring circle and corner connection coil; As shown in Figure 1,5 lift one's head for the tap section, and 10 is the axial outlet of high-tension coil; 11 for the low pressure star connects radial outlet, and 12 is the radial outlet of low pressure corner connection.Also be provided with on the housing unshakable in one's determination 15, unshakable in one's determination 15 and high-tension coil 1 between and all leave big oil clearance 16 between described high-tension coil 1 and the low-voltage coil 2, guaranteed enough safe insulation distances.
Claims (5)
1. the machine body structure of a 66kV level rectifier transformer; Comprise hollow housing; The high-tension coil (1) of band core insulation (8), high-tension coil head end (3), high-tension coil terminal (4) and high-pressure side circle (6) and the low-voltage coil (2) of band low-voltage coil head end, low-voltage coil end and low-pressure end circle are housed in the described housing; It is characterized in that described low-voltage coil (2) is enclosed within high-tension coil (1) outside; Between high-tension coil head end (3), high-tension coil terminal (4) and high-pressure side circle (6), be equipped with electrostatic ring (7); Said high-tension coil head end (3), high-tension coil terminal (4) respectively and be symmetrical set a square ring (9) between the core insulation (8), said low-voltage coil head end, low-voltage coil end are respectively and also be symmetrical set a square ring between the core insulation.
2. the machine body structure of 66kV level rectifier transformer according to claim 1 is characterized in that described housing upper end is provided with the pressing plate (14) that band is pressed nail (13).
3. the machine body structure of 66kV level rectifier transformer according to claim 1 and 2 is characterized in that described high-tension coil head end (3) and high-tension coil terminal (4) all adopt to be entangled with the formula coiling, the coiling of high-tension coil (1) interlude employing continous way.
4. the machine body structure of 66kV level rectifier transformer according to claim 1 and 2 is characterized in that described low-voltage coil (2) adopts two cake formula coilings, and the coiling of described pair of cake formula is the common coiling that is staggered of star wiring circle and corner connection coil.
5. the machine body structure of 66kV level rectifier transformer according to claim 1 and 2 is characterized in that leaving big oil clearance (16) between described high-tension coil (1) and the low-voltage coil (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201758802U CN202523535U (en) | 2012-04-23 | 2012-04-23 | Body structure of 66kV level rectifier transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201758802U CN202523535U (en) | 2012-04-23 | 2012-04-23 | Body structure of 66kV level rectifier transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202523535U true CN202523535U (en) | 2012-11-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201758802U Expired - Lifetime CN202523535U (en) | 2012-04-23 | 2012-04-23 | Body structure of 66kV level rectifier transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202523535U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110444380A (en) * | 2019-07-22 | 2019-11-12 | 辽宁中能电力实业集团有限责任公司 | 66kV voltage class Oversea wind power generation single-phase step-up transformer group |
| CN116544009A (en) * | 2023-06-14 | 2023-08-04 | 西安西电变压器有限责任公司 | Transformer, coil end outgoing structure in transformer and outgoing method |
-
2012
- 2012-04-23 CN CN2012201758802U patent/CN202523535U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110444380A (en) * | 2019-07-22 | 2019-11-12 | 辽宁中能电力实业集团有限责任公司 | 66kV voltage class Oversea wind power generation single-phase step-up transformer group |
| CN116544009A (en) * | 2023-06-14 | 2023-08-04 | 西安西电变压器有限责任公司 | Transformer, coil end outgoing structure in transformer and outgoing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190428 Address after: 750000 No. 221 Xingyuan Road, Xingqing District, Yinchuan City, Ningxia Hui Autonomous Region Patentee after: Yinchuan Wolong Transformer Co., Ltd. Address before: 312300 No. 1801 Renmin West Road, Shangyu City, Shaoxing City, Zhejiang Province Co-patentee before: Yinchuan Wolong Transformer Co., Ltd. Patentee before: Wolong Electric Group Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121107 |
|
| CX01 | Expiry of patent term |