CN204792493U - Non -excitation distributive switch - Google Patents
Non -excitation distributive switch Download PDFInfo
- Publication number
- CN204792493U CN204792493U CN201520417998.5U CN201520417998U CN204792493U CN 204792493 U CN204792493 U CN 204792493U CN 201520417998 U CN201520417998 U CN 201520417998U CN 204792493 U CN204792493 U CN 204792493U
- Authority
- CN
- China
- Prior art keywords
- contact
- insulating disc
- operating nut
- guard shield
- moving contact
- 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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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model discloses a non -excitation distributive switch, it mainly includes operating nut, guard shield, location nail, insulating disc, terminal and moves and decide the contact. The operating nut is installed the insulating disc edge, the guard shield is in the same place with the location nail fixing, the terminal with move and decide the contact and install in the insulating disc lower part, move and decide the contact and install around the insulating disc. The utility model discloses simple structure, easily installation dismantlement, the operating nut distributes rationally, and whole configuration design is suitable, is applicable to rated voltage 10KV, and the following three -phase oil immersed transformer of rated current 63A or 125A is under no excitation condition, through changing the purpose of the transformer primary coil number of turns in order to reach adjustment secondary voltage.
Description
Technical field
The utility model belongs to power transformation machine accessory field, particularly relates to a kind of off circuit tap changer for three-phase oil immersion power transformation device.
Background technology
In current domestic electrical network, 500kV interchange superhigh tension power transformer (comprising generator transformer) transfers employing non-excitation pressure adjustment mode to from original voltage adjustment of on-load mode.And developing rapidly of electric railway, there is higher requirement to the voltage of traction transformer.Generator high capacity requires the high capacity of transformer and shunting switch simultaneously.But at present Large Copacity off circuit tap changer still monopolize by external product.In order to adapt to the supporting needs of EHV transformer, the Large Copacity off circuit tap changer that research and development have independent intellectual property right is extremely urgent.
Summary of the invention
In order to increase the practicality of prior art, the utility model provides a kind of designs simplification, the off circuit tap changer that the three-phase oil immersion power transformation device being easy to installation and maintenance uses.
The utility model is realized by following scheme, a kind of off circuit tap changer, and it mainly comprises operating nut, guard shield, locating pin, joint pin, insulating disc, binding post and moves determines contact.Described operating nut is arranged on described insulating disc edge, and described guard shield and locating pin are fixed together by screw thread, described binding post and describedly dynamic determine contact and be arranged on insulating disc bottom, moves to determine contact and be evenly distributed on around insulating disc.
Described moving contact is radial elastic rolling moving contact, and it comprises the roller moving contact be installed in the spacing cavity of rotating shaft, the outside of roller moving contact and fixed contact phase configuration.
The utility model has following beneficial effect in sum: the utility model structure is existing more simple to existing product, is convenient to installation and removal, saves material, turn improve sensitivity simultaneously.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Embodiment
As shown in Figure 1, a kind of off circuit tap changer, it mainly comprises operating nut 4, guard shield 1, locating pin 2, joint pin 3, insulating disc 6 binding post 5 and moves determines contact 7.Described operating nut 4 is arranged on described insulating disc 5 edge, and described guard shield 1 and locating pin 2 are fixed together by screw thread, described binding post 5 and describedly dynamicly determine contact 7 and be arranged on insulating disc 6 lower head.
Further, described moving determines contact 7 for radial elastic rolling moving contact, and it comprises the roller moving contact be installed in the spacing cavity of rotating shaft, the outside of roller moving contact and fixed contact phase configuration.
The above is the utility model embodiment, therefore all equivalences done according to structure, feature and the principle described in the utility model application range change or modify, and are included in the utility model patent claim.
Claims (2)
1. an off circuit tap changer, it mainly comprises operating nut, guard shield, locating pin, joint pin, insulating disc, binding post and moves determines contact, it is characterized in that: described operating nut is arranged on described insulating disc edge, described guard shield and locating pin are fixed together by screw thread, described binding post and describedly dynamic determine contact and be arranged on insulating disc bottom, moves and determines contact and be divided into moving contact and fixed contact.
2. a kind of off circuit tap changer according to claim 1, is characterized in that: described moving contact is radial elastic rolling moving contact, and it comprises the roller moving contact be installed in the spacing cavity of rotating shaft, the outside configuration corresponding with fixed contact of roller moving contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520417998.5U CN204792493U (en) | 2015-06-17 | 2015-06-17 | Non -excitation distributive switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520417998.5U CN204792493U (en) | 2015-06-17 | 2015-06-17 | Non -excitation distributive switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204792493U true CN204792493U (en) | 2015-11-18 |
Family
ID=54532492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520417998.5U Expired - Fee Related CN204792493U (en) | 2015-06-17 | 2015-06-17 | Non -excitation distributive switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204792493U (en) |
-
2015
- 2015-06-17 CN CN201520417998.5U patent/CN204792493U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20170617 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |