CN203352325U - Million grade multi-glue mould pressing stator bar of water wheel generator - Google Patents
Million grade multi-glue mould pressing stator bar of water wheel generator Download PDFInfo
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- CN203352325U CN203352325U CN 201320061240 CN201320061240U CN203352325U CN 203352325 U CN203352325 U CN 203352325U CN 201320061240 CN201320061240 CN 201320061240 CN 201320061240 U CN201320061240 U CN 201320061240U CN 203352325 U CN203352325 U CN 203352325U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/50—Hydropower in dwellings
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Abstract
The utility model relates to a million grade multi-glue mould pressing stator bar of a water wheel generator. A bar wire is used for wrapping and winding a main insulation layer firstly and an anti-corona layer secondly, and the anti-corona layer comprises a lower resistance anti-corona layer, a high resistance anti-corona layer, an additional insulation layer, an external high resistance anti-corona layer and a high resistance anti-corona paint layer. The thickness of the million grade multi-glue mould pressing stator bar is reduced to 5.25 mm at the nominal voltage of 24 kV, the breakdown voltage is 6 times the nominal voltage, and the working field intensity achieves a world advanced level of 2.6 kV/mm. According to the utility model, a domestic gap is filled, and each technical index achieves an abroad advance level.
Description
Technical field: the utility model relates to 1,000,000 grades of many rubber mouldings of hydraulic generator and presses stator bar.
Background technology: along with the reinforcement of people to ecological environmental protection consciousness; and the outstanding advantages such as hydraulic generator has simplicity of design, start-stop convenience, economical operation, reliability is high, Maintenance and Repair are convenient, the investment of electricity market on hydroelectric project increases day by day.Continually developing and developing of new construction, new material, constantly increase the hydraulic generator single-machine capacity, and large capacity hydroelectric generator progressively becomes the developing direction of domestic and international electricity market.
Summary of the invention: the purpose of this utility model be manufacture a kind of under the 24kV electric pressure 1,000,000 grades of stator bars of good reliability, long service life.The technical solution of the utility model is: a kind of 1,000,000 grades of turbine generator stator bars, adopt equipotential layer structure in stator bar, after the wire moulding from the conductor leptoprosopy mind-set two ends equidistant with revealing the copper point, revealing copper point area is 5mm
2, two spacing 50mm that reveal between copper point, it is interior resistive formation end that the equipotential layer reaches with the length destination county that reveals copper point, evenly with the conductive paint layer, flat around one deck low-resistance corona-prevention belt in this scope; Along at least 26 layers of conductive line surfaces half-lap paulownia horse epoxy glass mica paper tapes as main insulating layer, line rod wire has held main insulating layer and has held anticorona layer, and anticorona layer comprises low-resistance corona-prevention layer, interior high resistant anticorona coating, supplemental dielectric layer, outer high resistant anticorona coating and the anti-corona enamelled coating of high resistant; Low-resistance corona-prevention layer: at straight line low-resistance corona-prevention layer place half-lap one deck low-resistance corona-prevention belt, interior high resistant anticorona coating: resistance corona-prevention belt, middle high resistance corona-prevention belt, high resistance corona-prevention belt in being wound around step by step, be wound around formation in the half-lap mode, rear one-level anticorona coating overlap joint previous stage anticorona coating length is 20mm, supplemental dielectric layer: after interior high resistant anticorona coating has been wound around, be wound around again supplemental dielectric layer, the initial sum clearing end that is wound around supplemental dielectric layer respectively prolongs that interior high resistant anticorona coating length be 10mm, outer high resistant anticorona coating: after supplemental dielectric layer has been wound around, the higher resistance corona-prevention belt of half-lap one deck; The high resistance corona-prevention belt initiating terminal of supplemental dielectric layer outside prolongs that supplemental dielectric layer length be 15mm, high resistance corona-prevention belt clearing end is apart from lead-in wire 100mm, the line rod adheres to the anti-corona enamelled coating of high resistant after hot-forming, and the anti-corona enamelled coating initial sum of high resistant clearing end is with initiating terminal and the clearing end of the high resistance corona-prevention belt of outermost layer.
The utility model mainly comprises following three aspects:: (1) stator bar adopts equipotential layer structure, the Main Insulation Structure of Electric that (2) are novel, (3) novel anti dizzy structure.
Technical characterstic of the present utility model is:
(1) stator bar adopts equipotential layer structure
For reducing wire field intensity concentration problem, increase electric property, after wire is hot-forming, from the conductor leptoprosopy, equidistant the repairing in mind-set two ends revealed the copper point, and on shaped conductors, even brushing one deck conductive paint, then hold corona-prevention belt, and the equipotential layer completes.
(2) novel Main Insulation Structure of Electric
Along at least 26 layers of the novel paulownia horse of conductive line surfaces half-lap epoxy glass mica paper tapes as main insulation.
(3) novel anti dizzy structure
Novel anti dizzy structure: low-resistance corona-prevention layer, interior high resistant anticorona coating, supplemental dielectric layer, outer high resistant anticorona coating and the anti-corona enamelled coating of high resistant.The low-resistance corona-prevention layer adopts low-resistance corona-prevention belt, resistance corona-prevention belt, middle high resistance corona-prevention belt and high resistance corona-prevention belt during interior high resistant anticorona coating adopts, and outer high resistant anticorona coating adopts high resistance corona-prevention belt, and the line rod is brushed the high resistant anticorona varnish after hot-forming in end.
The many rubber mouldings of 1,000,000 grades of hydraulic generators that adopt this patent to produce are pressed stator bar, and insulation thickness is thinned to 5.25mm, puncture voltage is rated voltage 6 times, the work field intensity reaches the advanced international standard of 2.6kV/mm.
The line rod basic mechanical design feature index that adopts the utility model to manufacture is as follows:
Under 1 normality 0.2Un, tg δ is less than 1%.
2 stator bars under 72kV after 60s without the visual corona vestige.
300 ten thousand grades of average disruptive field intensities of hydraulic generator stator product line rod reach 30kV/mm.
The anti-electrical ageing test of 4 line rod: the 3.0Un lower life-span of voltage is greater than 62h; 2.0Un the lower life-span of voltage is greater than 1069h.
The utility model fills the domestic gaps, and all technical all reaches Foreign Advanced Lerel, and various technologies are applicable to water and send out the unit use.Of the present utility model succeeding in developing, make hydroelectric station installing 10000MW level machine consist of possibility, strengthened the manufacturing international competitiveness of China's water power and international status, is with a wide range of applications.Send out insulating Design and the research of unit for other water and established solid foundation.
The accompanying drawing explanation:
Fig. 1 stator bar corona preventing construction schematic diagram.
Embodiment:
As shown in Figure 1, the utility model is a kind of 1,000,000 grades of turbine generator stator bars, adopts equipotential layer structure in stator bar, after the wire moulding from the conductor leptoprosopy equidistant the repairing in mind-set two ends reveal the copper point, revealing copper point area is 5mm
2, two spacing 50mm that reveal between copper point, the length destination county of equipotential layer and the dew copper point that repairs is interior resistive formation end, in this scope, evenly with the conductive paint layer, puts down around one deck low-resistance corona-prevention belt; Along at least 26 layers of conductive line surfaces half-lap paulownia horse epoxy glass mica paper tapes as main insulating layer, line rod wire has held main insulating layer and has held anticorona layer, and anticorona layer comprises low-resistance corona-prevention layer, interior high resistant anticorona coating, supplemental dielectric layer, outer high resistant anticorona coating and the anti-corona enamelled coating of high resistant; Low-resistance corona-prevention layer: at straight line low-resistance corona-prevention layer place half-lap one deck low-resistance corona-prevention belt 1, interior high resistant anticorona coating: resistance corona-prevention belt 2, middle high resistance corona-prevention belt 3, high resistance corona-prevention belt 4 in being wound around step by step, be wound around formation in the half-lap mode, rear one-level anticorona coating overlap joint previous stage anticorona coating length is 20mm, supplemental dielectric layer: after interior high resistant anticorona coating has been wound around, be wound around again supplemental dielectric layer 5, the initial sum clearing end that is wound around supplemental dielectric layer 5 respectively prolongs that interior high resistant anticorona coating length be 10mm, outer high resistant anticorona coating: after supplemental dielectric layer 5 has been wound around, the higher resistance corona-prevention belt 4 of half-lap one deck; High resistance corona-prevention belt 4 initiating terminals of supplemental dielectric layer outside prolong that supplemental dielectric layer 5 length be 15mm, high resistance corona-prevention belt 4 clearing ends are 100mm apart from lead-in wire 7, the line rod adheres to the anti-corona enamelled coating 6 of high resistant after hot-forming, and the anti-corona enamelled coating 6 initial sum clearing ends of high resistant are with initiating terminal and the clearing end of the high resistance corona-prevention belt 4 of outermost layer.
Claims (1)
1. the many rubber mouldings of 1,000,000 grades of hydraulic generators are pressed stator bar, it is characterized in that: adopt equipotential layer structure in stator bar, after the wire moulding from the conductor leptoprosopy mind-set two ends equidistant with revealing the copper point, revealing copper point area is 5mm
2, two spacing 50mm that reveal between copper point, it is interior resistive formation end that the equipotential layer reaches with the length destination county that reveals copper point, evenly with the conductive paint layer, flat around one deck low-resistance corona-prevention belt in this scope, along at least 26 layers of conductive line surfaces half-lap paulownia horse epoxy glass mica paper tapes as main insulating layer, line rod wire has held main insulating layer and has held anticorona layer, and anticorona layer comprises low-resistance corona-prevention layer, interior high resistant anticorona coating, supplemental dielectric layer, outer high resistant anticorona coating and the anti-corona enamelled coating of high resistant, low-resistance corona-prevention layer: at straight line low-resistance corona-prevention layer place half-lap one deck low-resistance corona-prevention belt (1), interior high resistant anticorona coating: resistance corona-prevention belt (2) in being wound around step by step, middle high resistance corona-prevention belt (3), high resistance corona-prevention belt (4), be wound around formation in the half-lap mode, rear one-level anticorona coating overlap joint previous stage anticorona coating length is 20mm, supplemental dielectric layer: be wound around again supplemental dielectric layer (5) after interior high resistant anticorona coating has been wound around, the initial sum clearing end that is wound around supplemental dielectric layer (5) respectively prolongs that interior high resistant anticorona coating length be 10mm, outer high resistant anticorona coating: after supplemental dielectric layer (5) has been wound around, the high resistance corona-prevention belt of half-lap one deck (4) again, high resistance corona-prevention belt (4) initiating terminal of supplemental dielectric layer outside prolongs that supplemental dielectric layer (5) length be 15mm, high resistance corona-prevention belt (4) clearing end is apart from lead-in wire (7) 100mm, the line rod adheres to the anti-corona enamelled coating of high resistant (6) after hot-forming, and the anti-corona enamelled coating of high resistant (6) initial sum clearing end is with initiating terminal and the clearing end of the high resistance corona-prevention belt of outermost layer (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320061240 CN203352325U (en) | 2013-02-04 | 2013-02-04 | Million grade multi-glue mould pressing stator bar of water wheel generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320061240 CN203352325U (en) | 2013-02-04 | 2013-02-04 | Million grade multi-glue mould pressing stator bar of water wheel generator |
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| Publication Number | Publication Date |
|---|---|
| CN203352325U true CN203352325U (en) | 2013-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320061240 Expired - Fee Related CN203352325U (en) | 2013-02-04 | 2013-02-04 | Million grade multi-glue mould pressing stator bar of water wheel generator |
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| Country | Link |
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| CN (1) | CN203352325U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105827044A (en) * | 2016-05-13 | 2016-08-03 | 哈尔滨电机厂有限责任公司 | Stator bar anti-corona structure of large motor capable of increasing winding voltage withstanding level |
-
2013
- 2013-02-04 CN CN 201320061240 patent/CN203352325U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105827044A (en) * | 2016-05-13 | 2016-08-03 | 哈尔滨电机厂有限责任公司 | Stator bar anti-corona structure of large motor capable of increasing winding voltage withstanding level |
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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: 20131218 Termination date: 20190204 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |