CN2686194Y - Power generator stator winding in-slot bar fixing apparatus - Google Patents
Power generator stator winding in-slot bar fixing apparatus Download PDFInfo
- Publication number
- CN2686194Y CN2686194Y CN 200420032556 CN200420032556U CN2686194Y CN 2686194 Y CN2686194 Y CN 2686194Y CN 200420032556 CN200420032556 CN 200420032556 CN 200420032556 U CN200420032556 U CN 200420032556U CN 2686194 Y CN2686194 Y CN 2686194Y
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- CN
- China
- Prior art keywords
- corrugated plating
- bar fixing
- wire bar
- winding
- generator unit
- 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 - Lifetime
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- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The utility model discloses a power generator stator winding slot wire bar fixing apparatus, which is used to prevent the vibration of the wire bar and avoid the phenomenon such as injurious deformation, damage, surface charge potential raising on the coil, electrical erosion, etc. The utility model is characterized in that the corrugated board as the chief fixed structure is separately installed on the left or right side of the upper and lower wire bar. The interlayer is equipped with a sticker, and the notch is equipped with a slot wedge. The fixed wire bar of the corrugated board adopted by the utility model can keep the stator winding silent running and prevent the injurious deformation and damage caused by the wire bar vibration. In addition, because the corrugated board adopts a pressing product for the semi-conducting material layer with high mechanical properties and good elasticity, the wire bar can tightly contact with the iron core The utility model can prevent the electric discharge phenomena caused by the surface charge potential raising on the wire bar.
Description
Technical field
The utility model relates to generator unit stator groove inner structure, is applicable to the fixed structure of stator of steam turbine generator groove interior lines rod specifically.
Background technology
Turbo generator is when normal operation, and line rod slot part is subjected to the electromagnetic force effect of two different directions: one is that electric current produces horizontal leakage flux and produces the radial electromagnetic force of pressing to bottom land or slot wedge with the excellent Interaction Law of Electric Current of line in the groove; Another is stator magnet when saturated, and the part main flux is crossed groove center line rod and produced the tangential electromagnetic force of pressing to cell wall with the line rod function of current.The electromagnetic force size is directly proportional with current squaring.Under the comprehensive function of electromagnetic force, thermal stress and mechanical force, Stator Winding of High Voltage Motor usually owing to fixing uneven produce vibration and injurious deformation, causes damaging.Coil causes loose contact in groove internal vibration meeting, and the coil surface current potential is raise, and also can occur phenomenons such as galvano-cautery when serious.
Summary of the invention
The utility model is intended at Stator Winding of High Voltage Motor owing to fixing uneven the problems referred to above that vibration brings that produce, a kind of generator unit stator slot for winding interior lines bar fixing device is provided, the anti-principal vertical line rod of this device vibrates, and then avoids the generation of phenomenons such as injurious deformation, damage, the rising of coil surface current potential, galvano-cautery.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of generator unit stator slot for winding interior lines bar fixing device is characterized in that: be provided with corrugated plating between online excellent side and the cell wall.
Corrugated plating is provided with the two sides, the left and right sides of online rod.
The levels corrugated plating is separately positioned on the left and right sides of layer line rod up and down.
Corrugated plating ripple and service orientation are miter angle.
Corrugated plating thickness is 0.5,0.8,0.9 or 1.0mm, and crest height is 4.0～5.5mm.
Line rod interlayer and and bottom land between be respectively arranged with interlayer filler strip and bottom land filler strip.
Winding notch place is provided with slot wedge, is wedge under it, and corrugated plating under filler strip or the wedge is set between wedge and the top bar under the wedge.
Corrugated plating is a semi-conducting material, and surface resistivity is 1～400K Ω.
Advantage of the present utility model is:
Because the utility model adopts corrugated plating static line rod, its its specific structure can keep the stator winding even running, prevents the injurious deformation and the damage that cause because of the vibration of line rod.In addition, because the corrugated plating employing is the semi-conducting material laminated product of a kind of mechanical performance height, good springiness, by it the line rod is closely contacted with iron core, anti-principal vertical line rod surface potential raises and electric discharge phenomena occur.
Description of drawings
Fig. 1 is the utility model stator bar groove internal fixation structural representation
Fig. 2 is the corrugated board structures schematic diagram that the utility model adopted
Embodiment
The utility model proposes a kind of generator unit stator slot for winding interior lines bar fixing device, be used for the vibration of anti-principal vertical line rod, avoid the generation of phenomenons such as injurious deformation, damage, the rising of coil surface current potential, galvano-cautery.
The characteristics of this fixture are to use corrugated plating 1 to be main fixed structure, and this corrugated plating 1 is provided with between online excellent 2 sides and the cell wall 3.
Line rod 2 interlayers and and bottom land between be respectively arranged with interlayer filler strip 4 and bottom land filler strip 5.Winding notch place is provided with slot wedge 6, is wedge 7 under it, and corrugated plating 8 under filler strip or the wedge is set between wedge 7 and the top bar 2 under the wedge.Because groove interior lines rod 2 is divided into two-layer, described " line rod side " can be following several mode, the one, two-layer corrugated plating 1 side that exists together, or two-layer line rod 2 both sides all are provided with corrugated plating 1, are separately positioned on the left and right sides of layer line rod 2 up and down again or with corrugated plating 1.Present embodiment adopts the latter to be advisable.
Corrugated plating 1 ripple and service orientation have certain angle, and 45 degree are best.
The material of corrugated plating 1 is selected semi-conducting material, and surface resistivity is 1～400K Ω, helps like this preventing electric discharge phenomena occurring because of line rod 2 surface potentials raise.Its performance index are as follows:
Thickness 0.5,0.8,0.9 or 1.0mm;
Crest height 4.0～5.5mm;
Surface resistivity 1～400K Ω;
Installation method of the present utility model is:
Put into bottom land filler strip 5, after lower bar 2 rolls off the production line, lower bar side semiconductor corrugated plating 1 is squeezed into line rod 2 sides, lower floor's stator bar 2 is closely contacted with corrugated plating 1 with cell wall 3; Put into interlayer filler strip 4, after top bar 2 rolls off the production line, top bar semiconductor corrugated plating 1 is squeezed into top bar 2 sides, upper strata stator bar 2 is closely contacted with corrugated plating 1 with cell wall 3.Put under the wedge corrugated plating 8 under filler strip or the wedge at last, squeeze into wedge 7, slot wedge 6, stator bar 2 is fixed in the stator slot firmly.
Because the utility model adopts corrugated plating static line rod, its its specific structure can keep the stator winding even running, prevents the injurious deformation and the damage that cause because of the vibration of line rod.In addition, because the corrugated plating employing is the semi-conducting material laminated product of a kind of mechanical performance height, good springiness, by it the line rod is closely contacted with iron core, anti-principal vertical line rod surface potential raises and electric discharge phenomena occur.
Claims (8)
1, a kind of generator unit stator slot for winding interior lines bar fixing device is characterized in that: be provided with corrugated plating (1) between online rod (2) side and the cell wall (3).
2, a kind of generator unit stator slot for winding according to claim 1 interior lines bar fixing device, it is characterized in that: corrugated plating (1) is provided with the two sides, the left and right sides of online rod (2).
3, a kind of generator unit stator slot for winding according to claim 1 interior lines bar fixing device is characterized in that: levels corrugated plating (1) is separately positioned on the left and right sides of layer line rod (2) up and down.
4, according to claim 1,2 or 3 described a kind of generator unit stator slot for winding interior lines bar fixing devices, it is characterized in that: corrugated plating ripple and service orientation are miter angle.
5, according to claim 1,2 or 3 described a kind of generator unit stator slot for winding interior lines bar fixing devices, it is characterized in that: corrugated plating thickness is 0.5,0.8,0.9 or 1.0mm, and crest height is 4.0～5.5mm.
6, according to claim 1,2 or 3 described a kind of generator unit stator slot for winding interior lines bar fixing devices, it is characterized in that: line rod interlayer and and bottom land between be respectively arranged with interlayer filler strip and bottom land filler strip.
7, according to claim 1,2 or 3 described a kind of generator unit stator slot for winding interior lines bar fixing devices, it is characterized in that: winding notch place is provided with slot wedge, is wedge under it, and corrugated plating under filler strip or the wedge is set between wedge and the top bar under the wedge.
8, according to claim 1,2 or 3 described a kind of generator unit stator slot for winding interior lines bar fixing devices, it is characterized in that: corrugated plating is a semi-conducting material, and surface resistivity is 1～400K Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420032556 CN2686194Y (en) | 2004-01-14 | 2004-01-14 | Power generator stator winding in-slot bar fixing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420032556 CN2686194Y (en) | 2004-01-14 | 2004-01-14 | Power generator stator winding in-slot bar fixing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2686194Y true CN2686194Y (en) | 2005-03-16 |
Family
ID=34670595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420032556 Expired - Lifetime CN2686194Y (en) | 2004-01-14 | 2004-01-14 | Power generator stator winding in-slot bar fixing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2686194Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102780296A (en) * | 2011-05-11 | 2012-11-14 | 上海电气集团上海电机厂有限公司 | Method for placing under-wedge pad strip on rotor coil of large motor |
| CN103135040A (en) * | 2012-12-25 | 2013-06-05 | 太原理工大学 | High-voltage motor stator core slot part model device |
| CN110632513A (en) * | 2019-08-19 | 2019-12-31 | 华电电力科学研究院有限公司 | Generator stator slot anti-corona layer potential measuring device and measuring method |
-
2004
- 2004-01-14 CN CN 200420032556 patent/CN2686194Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102780296A (en) * | 2011-05-11 | 2012-11-14 | 上海电气集团上海电机厂有限公司 | Method for placing under-wedge pad strip on rotor coil of large motor |
| CN102780296B (en) * | 2011-05-11 | 2013-12-18 | 上海电气集团上海电机厂有限公司 | Method for placing under-wedge pad strip on rotor coil of large motor |
| CN103135040A (en) * | 2012-12-25 | 2013-06-05 | 太原理工大学 | High-voltage motor stator core slot part model device |
| CN103135040B (en) * | 2012-12-25 | 2017-12-05 | 太原理工大学 | A kind of high-voltage motor stator core slot part model device |
| CN110632513A (en) * | 2019-08-19 | 2019-12-31 | 华电电力科学研究院有限公司 | Generator stator slot anti-corona layer potential measuring device and measuring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140114 Granted publication date: 20050316 |