JPS59216448A - Securing method of revolving field winding - Google Patents
Securing method of revolving field windingInfo
- Publication number
- JPS59216448A JPS59216448A JP8748083A JP8748083A JPS59216448A JP S59216448 A JPS59216448 A JP S59216448A JP 8748083 A JP8748083 A JP 8748083A JP 8748083 A JP8748083 A JP 8748083A JP S59216448 A JPS59216448 A JP S59216448A
- Authority
- JP
- Japan
- Prior art keywords
- field winding
- winding
- insulator
- spring
- resin glass
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/48—Fastening of windings on the stator or rotor structure in slots
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は回転界磁巻線の改良に係り、特に巻線溝内に配
置された界磁巻線の固定方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to improvements in rotating field windings, and more particularly to a method for fixing a field winding disposed within a winding groove.
一般的な回転界磁巻線が回転子鉄心の巻線溝に納められ
た状態の一列を第１１９：ＩＫ示す。従来この種の回転
１機は界磁巻線（１）が巻線溝（２）内に配置され、対
地絶縁用に巻線溝（２３Ｋ底部絶縁物（３）としてポリ
エステルレジンガラス積層板または、エポキシレジンガ
ラス積層板等を挿入し、かつＬ字形絶縁物（４）としＣ
ポリエステルレジンガラス積層板またはエポキシレジン
ガラス積層板等を挿入して、層間絶縁（５）としてポリ
エステルレジンガラス積層板およびエポキシレジンガラ
ス積層板または芳香族ポリアミド紙（例えばデュポン社
商品名ノーメックス）をはさんだ裸導帯の界磁巻線（１
）を納めた後に対地絶縁用の上部絶縁物（６）としてポ
リエステルレジンガラス積層板またはエポキシレジンガ
ラス積層板等を界磁巻線（１）の上部に挿入し、その上
部に楔（力を挿入して巻線溝（２）に固定していた。ま
た、巻線溝（２）は界磁巻線（１）を納めやｔくするた
めまた熱膨張があるため巻線溝（２）には高さ方向で１
朋から２１ｍ程度の隙間を設ける必要がある。119: IK shows a row of general rotating field windings housed in the winding grooves of the rotor core. Conventionally, in this type of rotating machine, the field winding (1) is placed in the winding groove (2), and the winding groove (23K bottom insulator (3) is a polyester resin glass laminate or Insert an epoxy resin glass laminate, etc., and make it an L-shaped insulator (4).
A polyester resin glass laminate, an epoxy resin glass laminate, or the like is inserted, and a polyester resin glass laminate, an epoxy resin glass laminate, or aromatic polyamide paper (for example, DuPont product name Nomex) is sandwiched between the layers as interlayer insulation (5). Bare conductive band field winding (1
), insert a polyester resin glass laminate or epoxy resin glass laminate, etc., as an upper insulator (6) for ground insulation into the upper part of the field winding (1), and insert a wedge (force) into the upper part of the field winding (1). The winding groove (2) was fixed to the winding groove (2) in order to accommodate the field winding (1) and due to thermal expansion. is 1 in the height direction
It is necessary to provide a gap of about 21 meters from you.
このような構造にかいて回転子が高速回転を行った場合
、遠心力により巻線溝（２）に納めｂれたものは外周側
（楔（７）劃）に固定されるので問題はないが、回転子
がターニング等の低速回転（２〜３ｒ、ｐ、ｍ）を行っ
た場合は、界磁巻線（１）および底部絶縁物（３）・Ｌ
字形絶縁物ｔ４Ｊ・層間、ｉ８緑（５）・上部絶縁物（
６）が巻線溝（２）で上下に移動する。すなわち起動停
止ごとに界磁巻線（１）等が巻線溝（２）内で上下に移
動するので長年運転を行うと、起動停止の増加とともに
絶縁物等が機械的に摩耗損傷し、絶縁耐力を低下させ、
不慮の接地・層間短絡にともなう振動過大による緊急停
止等の事故につながる恐れがある。When the rotor rotates at high speed with this structure, there is no problem because the centrifugal force causes the windings placed in the winding grooves (2) to be fixed on the outer circumferential side (wedges (7)). However, when the rotor performs low-speed rotation (2 to 3 r, p, m) such as turning, the field winding (1) and bottom insulator (3)/L
Shape insulator t4J, interlayer, i8 green (5), upper insulator (
6) moves up and down in the winding groove (2). In other words, the field winding (1), etc. moves up and down in the winding groove (2) every time it starts and stops, so if the operation is continued for many years, as the number of starts and stops increases, the insulators etc. will be mechanically worn and damaged, causing the insulation to deteriorate. Reduces strength,
Excessive vibration caused by accidental grounding or short circuit between layers may lead to accidents such as emergency stoppages.
本発明は、界磁巻線の上下動を押える回転界磁巻線の固
定方法を提供することを目的とする。SUMMARY OF THE INVENTION An object of the present invention is to provide a method for fixing a rotating field winding that suppresses vertical movement of the field winding.
上記の目的を達成するために本発明の固定方法において
は、スロットの底部に波形材を敷設し、これによって巻
線を上方に押付ける。In order to achieve the above object, in the fixing method of the present invention, a corrugated material is laid at the bottom of the slot, thereby pressing the winding upward.
実施例
以下に本発明の一実施例を第２図・第３図・第４図およ
び第５図を参照しつつ説明する。EXAMPLE An example of the present invention will be described below with reference to FIGS. 2, 3, 4, and 5.
第２図に示すように底部絶縁物（３）と巻線溝（２）の
底部との間に第３図に示す波形スプリング（８）を挿入
する。波形スプリング（８）は、金属製のバネまたは非
金属製のポリエステルレジンガラス積層板・エポキシレ
ジンガラス積層板等を波形に成形したものを使用し、波
の高さ寸法は２ｕから５ｕ程度、厚さ寸法は、金属製の
場合は０．３ ｔｎｍから０．５部程度、非金属製（絶
縁物）の場合は０．５間から１．０ｕ程度、圧縮強度（
押し付ける力）は５晒軸２から２０〜／ｄ程度、長さ寸
法は、３００關から５００朋程度が適切である。また、
波形スプリング（８）は巻線溝（２）に納められた界磁
巻線（１）等の全重量を楔（力側に押し付けるのに必要
な圧縮力（１，５１部以上）になるように巻線溝（２）
の底部に数昭所分散して挿入する。As shown in FIG. 2, a wave spring (8) shown in FIG. 3 is inserted between the bottom insulator (3) and the bottom of the winding groove (2). The wave spring (8) uses a metal spring or a non-metallic polyester resin glass laminate, epoxy resin glass laminate, etc. formed into a wave shape, and the height of the wave is about 2u to 5u, and the thickness is about 2u to 5u. The size is 0.3 tnm to 0.5 part for metal, 0.5 to 1.0 u for non-metal (insulator), and compressive strength (
Appropriately, the pressing force is about 20~/d from the 5-shaft axis 2, and the length is about 300~500 mm. Also,
The wave spring (8) has a compressive force (1.51 parts or more) necessary to press the entire weight of the field winding (1) etc. housed in the winding groove (2) into a wedge (force side). Winding groove (2)
Insert it in several places at the bottom of the machine.
波形スプリング（８）は、運転中に回１伝子の軸方向に
移動しないようにするため、第４図に示すように底部絶
縁物（３）に脱出防止用ピン（９）を取り付けて。In order to prevent the wave spring (8) from moving in the axial direction of the first gear during operation, a pin (9) for preventing escape is attached to the bottom insulator (3) as shown in Fig. 4.
底部絶縁物（３）と脱出防止用ピン（９）の間に波形ス
プリング（８）を挿入して固定させ波形スプリング（８
）の移動防止を行う。Insert and fix the wave spring (8) between the bottom insulator (3) and the escape prevention pin (9).
) to prevent movement.
このように組立られた、波形スプリング（８）を第
５図に示すように巻線溝（２）に納められた界磁巻線
（１）の７部に挿入し界磁巻線（１）・底部絶縁物（３
）・Ｌ字形絶縁物＜４）・層間絶縁（５）・上部絶縁物
（６）を巻線溝（２）の楔（力Ｕｔ＋＋に押し付ける。The wave spring (8) assembled in this way is
As shown in Figure 5, insert the field winding (1) into the bottom insulator (3) by inserting it into the 7th part of the field winding (1) housed in the winding groove (2).
), L-shaped insulator <4), interlayer insulation (5), and upper insulator (6) are pressed against the wedge (force Ut++) of the winding groove (2).
このように構成された回転界磁巻線においてはターニン
グ等の低速回転の際にも波形スプリング（８）のスプリ
ング効果により巻線溝（２）に納められた界磁巻線（１
）等は、上下に移動することはないので絶縁物等を摩耗
損傷させ絶縁耐力を低下させる恐れがなくなる。また、
界磁巻線（１）に通電した際の界磁巻線（１）の高さ方
向の熱膨張も波形スプリング（８）のスプリング効果に
より吸収することが出来るため、巻線溝（２）の隙間を
無くした場合と異なり界磁巻線（１）が高さ方向にむり
な力で押し付けられることもなく回転子の軸方向の熱膨
張性も悪化さきることはない。さらに、楔（７）の挿入
作業におい−Ｃも、波形スプリング（８）にスプリング
効果があるため、界磁巻線（１）・上部絶縁物（６）等
を特殊治具で巻線溝（２）の底部に押し付けることによ
り僕（７）の挿入７作業性を悪化させることはない。In the rotating field winding configured in this way, even during low-speed rotation such as turning, the field winding (1) housed in the winding groove (2) is
) etc. do not move up and down, so there is no risk of abrasion and damage to the insulators and a decrease in dielectric strength. Also,
Thermal expansion in the height direction of the field winding (1) when the field winding (1) is energized can also be absorbed by the spring effect of the wave spring (8). Unlike the case where the gap is eliminated, the field winding (1) is not pressed with excessive force in the height direction, and the thermal expansion property of the rotor in the axial direction is not deteriorated. Furthermore, during the work of inserting the wedge (7), since the wave spring (8) has a spring effect, the field winding (1), upper insulator (6), etc. are inserted into the winding groove with a special jig. Pressing it against the bottom of 2) will not worsen the ease of insertion 7 for me (7).
次に本発明の他の実施例を第６図および第７図によって
説明する、。すなわち、底部、１８緑物（３）をポリエ
ステルレジンガラス積層板またはエポキシレジンガラス
積層にて製作する際に第６図のように波形に成形したも
のを第７図のように巻線溝（２）に納められた界磁巻線
（１）の下部に挿入し巻線溝内（２）の楔（７）側に界
磁巻線（１）を押し付けるようにしてもよい。Next, another embodiment of the present invention will be described with reference to FIGS. 6 and 7. That is, when the bottom part 18 green material (3) is made of a polyester resin glass laminate or an epoxy resin glass laminate, it is formed into a corrugated shape as shown in Figure 6, and then the winding groove (2) is formed as shown in Figure 7. ) may be inserted into the lower part of the field winding (1) housed in the winding groove (2) to press the field winding (1) against the wedge (7) side in the winding groove (2).
以上に述べて来たように本発明による回転界磁巻線の固
定方法を採用することによりターニング等の低速回転時
に巻線溝内で界磁巻線等が上下に移動することがないた
め長年運転されても絶縁物等が機械的に摩耗損傷するこ
とがないので絶縁耐力を低下させ寿命を短くする恐れが
なくなる。As described above, by adopting the method of fixing the rotating field winding according to the present invention, the field winding etc. will not move up and down in the winding groove during low speed rotation such as turning, so it will last for many years. Even during operation, the insulator etc. will not be mechanically worn and damaged, so there is no risk of lowering the dielectric strength and shortening the service life.
第１図は従来の固定方法による回転界磁の溝の断面図、
第２図ないし第５図ゆ本発明の一実施例を示し、第２図
は溝の断面図、第３図は波形スプリングの斜視図、第４
図は波形スプリングと底部絶縁物との結合図、第５図は
第２図の■−■線に沿う溝部断面図、第６および第７図
は本発明の他△
の実施例を示し第６図は底部泊緑物の斜視図、第７図は
溝部断面図である。
１ 界磁巻線、 ２・・巻線溝、３ 底部絶縁
物、 ４−・Ｌ字形絶縁物。
５・・層間も縁、 ６ ・上部絶縁物、７・・
喫、 ８・・・波形スプリング、９・・・
脱出防止力」ピン。
代理人 弁理士 則 近 憲 ｔ！３（ほか１名）第１
図
第２図Figure 1 is a cross-sectional view of the groove of the rotating field by the conventional fixing method.
Figures 2 to 5 show an embodiment of the present invention, with Figure 2 being a sectional view of the groove, Figure 3 being a perspective view of the wave spring, and Figure 4 being a perspective view of the wave spring.
The figure shows a combination diagram of the wave spring and the bottom insulator, FIG. The figure is a perspective view of the bottom green material, and FIG. 7 is a sectional view of the groove. 1. Field winding, 2. Winding groove, 3. Bottom insulator, 4. L-shaped insulator. 5. Edges between layers, 6. Upper insulator, 7.
Cut, 8...Wave spring, 9...
Escape prevention force” pin. Agent Patent Attorney Nori Chika T! 3 (and 1 other person) 1st
Figure 2
Claims (1)
納めるに際し、スロットの底部に波形材を敷設すること
を特徴とする回転界磁巻線の−き方法。A method for placing a rotating field winding, which comprises laying a corrugated material at the bottom of the slot when the field winding is placed in a slot bored in the circumferential surface of a rotor core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8748083A JPS59216448A (en) | 1983-05-20 | 1983-05-20 | Securing method of revolving field winding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8748083A JPS59216448A (en) | 1983-05-20 | 1983-05-20 | Securing method of revolving field winding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59216448A true JPS59216448A (en) | 1984-12-06 |
Family
ID=13916094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8748083A Pending JPS59216448A (en) | 1983-05-20 | 1983-05-20 | Securing method of revolving field winding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59216448A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0652623A1 (en) * | 1993-11-04 | 1995-05-10 | ABB Management AG | Rotor of turbogenerator with direct gas cooling of the exciter coil |
-
1983
- 1983-05-20 JP JP8748083A patent/JPS59216448A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0652623A1 (en) * | 1993-11-04 | 1995-05-10 | ABB Management AG | Rotor of turbogenerator with direct gas cooling of the exciter coil |
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