CN205070644U - Stator coil interturn insulation structure is sent out quick -witted to high height above sea level high pressure vapour - Google Patents
Stator coil interturn insulation structure is sent out quick -witted to high height above sea level high pressure vapour Download PDFInfo
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- CN205070644U CN205070644U CN201520897711.3U CN201520897711U CN205070644U CN 205070644 U CN205070644 U CN 205070644U CN 201520897711 U CN201520897711 U CN 201520897711U CN 205070644 U CN205070644 U CN 205070644U
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- mica
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- tape layer
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Abstract
The utility model relates to a stator coil interturn insulation structure is sent out quick -witted to high height above sea level high pressure vapour, it includes electromagnetic wire (1), and the outward appearance of electromagnetic wire (1) sets up multilayer mica lacing (2), and the outside of all electromagnetic wires behind the interturn insulation still is provided with mica lacing A (3), mica lacing (2) from inside to outside in proper order for the half lap package mica lacing B (4) of glue, half lap package mica lacing C (5) and the many gluey mica lacing D (6) of half lap package of gluing more, mica lacing A (3), mica lacing B (4) and mica lacing D (6) are the half lap package 5440 -1D single face reinforcement mica lacings of gluing more, and mica lacing C (5) is half lap package 446 -1 polyester film mica powder lacing. The utility model is suitable for a high height above sea level motor assembling unit can effectively improve the weatherability of motor, prevents the emergence of motor corona and the problem of discharging, improves unit operational safety and service life of assembling unit, and whole insulation system all adopt homemade insulating material to handle, and are with low costs.
Description
Technical field
The utility model relates to technical field of motors, and particularly a kind of High aititude high pressure vapour sends out insulation system between machine stator coil turn.
Background technology
Along with the development of State Grid's industry, high altitude localities generating set gets more and more.For conventional power unit, run in high altitude localities, particularly power station height above sea level is when more than 3000m, and group of motors is easier to occur groove portion corona, partial discharge at end-winding, partial discharge etc., often cause unit operation fault, greatly shorten the unit operation life-span and even burn unit.Corona and electric discharge problem and fixed subcoil insulating have close contacting, therefore must carry out special anti-corona process to the stator coil of High aititude High-voltage generator set, to meet the requirement that unit runs in high altitude localities long-term stability.
Utility model content
The purpose of this utility model is the shortcoming overcoming prior art, provides a kind of fixed subcoil insulating structure that effectively can prevent High aititude motor corona, ensure unit operation fail safe, improve the unit operation life-span.
The purpose of this utility model is achieved through the following technical solutions: a kind of High aititude high pressure vapour sends out insulation system between machine stator coil turn, it comprises electromagnetic wire, the appearance of electromagnetic wire arranges multi layer cloud master tape layer, and the outside of all electromagnetic wires after turn-to-turn insulation is also provided with mica belt A.
Further, described mica belt is half-stack package resin-rich mica tape layer.
Further, described mica belt A is half-stack package resin-rich mica tape layer.
Further, described mica belt is 3 layers.
Further, described mica belt is followed successively by half-stack package resin-rich mica tape layer B, half-stack package resin-rich mica tape layer C and half-stack package resin-rich mica tape layer D from inside to outside.
Further, described mica belt A, half-stack package resin-rich mica tape layer B and half-stack package resin-rich mica tape layer D are half-stack package 5440-1D single-side reinforced resin-rich mica tape layer, and described half-stack package resin-rich mica tape layer C is half-stack package 446-1 mylar mica powder belt.
The utility model has the following advantages:
1, electric property and good mechanical property, effective raising unit weatherability, prevent the problem such as corona and electric discharge from occurring: the turn-to-turn insulation structure instantaneous breakdown voltage in the utility model is at more than 30KV, far beyond turn-to-turn insulation electrical performance demands, multiple voltage grade stator bar can be met to the electrical performance demands of turn-to-turn insulation; Simultaneously owing to introducing film reinforcement mica tape, turn-to-turn insulation is superior performance in resistant to mechanical damage, effectively improves the weatherability of motor, prevents the generation of High aititude motor corona and electric discharge problem, improves fail safe and the unit durability of unit operation.Unit operation facts have proved, this turn-to-turn insulation structure can meet the unit operation requirement under the adverse circumstances of high altitude localities.The High aititude vapour that the fixed subcoil insulating structure of current manufacture is put into commercial operation sends out unit more than 40 covers, even if under the nearly 4000m environment of height above sea level, also can ensure that unit normally runs.Wherein, power station height above sea level has 17 covers more than the unit of 2000m; Have 4 10.5kV unit plant height above sea levels more than 3500m, most High aititude height is 3963m.The safe operation time, operational effect was very good more than 6 years, did not also occur the problem of any anti-corona aspect in unit running process in Hua Xin power station, Tibet (height above sea level 3630m, at that time domestic most High aititude generating set).
2, cost is low, is beneficial to guarantee economic security of the country: all insulation system all adopts domestic insulating material process, and cost is low, the more important thing is the risk reducing and rely on external Imported Insulation material, is conducive to ensureing economic security of the country.
Accompanying drawing explanation
Fig. 1 is the schematic cross-section of fixed subcoil insulating structure in the utility model embodiment;
Fig. 2 is single-turn circular coil appearance mica tape Rotating fields schematic diagram in the utility model embodiment;
In figure: 1-electromagnetic wire, 2-mica belt, 3-mica belt A, 4-mica belt B, 5-mica belt C, 6-mica belt D.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described, but protection range of the present utility model is not limited to the following stated.
As depicted in figs. 1 and 2, a kind of High aititude high pressure vapour sends out insulation system between machine stator coil turn, it comprises electromagnetic wire (1), and the appearance of electromagnetic wire (1) arranges multi layer cloud master tape layer (2), and the outside of all electromagnetic wires after turn-to-turn insulation also arranges mica belt A(3).Described mica belt (2) is 3 layers, mica belt (2) is followed successively by half-stack package resin-rich mica tape layer B(4 from inside to outside), half-stack package resin-rich mica tape layer C(5) and half-stack package resin-rich mica tape layer D(6), mica belt A(3), half-stack package resin-rich mica tape layer B(4) and half-stack package resin-rich mica tape layer D(6) be half-stack package 5440-1D single-side reinforced resin-rich mica tape layer, half-stack package resin-rich mica tape layer C(5) be half-stack package 446-1 mylar mica powder belt.
Claims (6)
1. a High aititude high pressure vapour sends out insulation system between machine stator coil turn, it is characterized in that: it comprises electromagnetic wire (1), the appearance of electromagnetic wire (1) arranges multi layer cloud master tape layer (2), and the outside of all electromagnetic wires after turn-to-turn insulation is also provided with mica belt A(3).
2. a kind of High aititude high pressure vapour according to claim 1 sends out insulation system between machine stator coil turn, it is characterized in that: described mica belt (2) is half-stack package resin-rich mica tape layer.
3. a kind of High aititude high pressure vapour according to claim 1 sends out insulation system between machine stator coil turn, it is characterized in that: described mica belt A(3) be half-stack package resin-rich mica tape layer.
4. a kind of High aititude high pressure vapour according to claim 1 sends out insulation system between machine stator coil turn, it is characterized in that: described mica belt (2) is 3 layers.
5. a kind of High aititude high pressure vapour according to claim 4 sends out insulation system between machine stator coil turn, it is characterized in that: described mica belt (2) is followed successively by half-stack package resin-rich mica tape layer B(4 from inside to outside), half-stack package resin-rich mica tape layer C(5) and half-stack package resin-rich mica tape layer D(6).
6. a kind of High aititude high pressure vapour according to claim 5 sends out insulation system between machine stator coil turn, it is characterized in that: described mica belt A(3), half-stack package resin-rich mica tape layer B(4) and half-stack package resin-rich mica tape layer D(6) be half-stack package 5440-1D single-side reinforced resin-rich mica tape layer, described half-stack package resin-rich mica tape layer C(5) be half-stack package 446-1 mylar mica powder belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520897711.3U CN205070644U (en) | 2015-11-12 | 2015-11-12 | Stator coil interturn insulation structure is sent out quick -witted to high height above sea level high pressure vapour |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520897711.3U CN205070644U (en) | 2015-11-12 | 2015-11-12 | Stator coil interturn insulation structure is sent out quick -witted to high height above sea level high pressure vapour |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205070644U true CN205070644U (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520897711.3U Active CN205070644U (en) | 2015-11-12 | 2015-11-12 | Stator coil interturn insulation structure is sent out quick -witted to high height above sea level high pressure vapour |
Country Status (1)
| Country | Link |
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| CN (1) | CN205070644U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110308672A (en) * | 2019-07-30 | 2019-10-08 | Oppo广东移动通信有限公司 | Electronic equipment, display panel and its sounding device |
| CN111371268A (en) * | 2020-04-24 | 2020-07-03 | 哈尔滨电机厂有限责任公司 | Method for manufacturing stator bar with double-layer composite main insulation structure |
-
2015
- 2015-11-12 CN CN201520897711.3U patent/CN205070644U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110308672A (en) * | 2019-07-30 | 2019-10-08 | Oppo广东移动通信有限公司 | Electronic equipment, display panel and its sounding device |
| CN110308672B (en) * | 2019-07-30 | 2021-09-17 | Oppo广东移动通信有限公司 | Electronic equipment, display panel and sound production device thereof |
| CN111371268A (en) * | 2020-04-24 | 2020-07-03 | 哈尔滨电机厂有限责任公司 | Method for manufacturing stator bar with double-layer composite main insulation structure |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |