JPH0342685B2 - - Google Patents
Info
- Publication number
- JPH0342685B2 JPH0342685B2 JP60263804A JP26380485A JPH0342685B2 JP H0342685 B2 JPH0342685 B2 JP H0342685B2 JP 60263804 A JP60263804 A JP 60263804A JP 26380485 A JP26380485 A JP 26380485A JP H0342685 B2 JPH0342685 B2 JP H0342685B2
- Authority
- JP
- Japan
- Prior art keywords
- enamel
- winding
- coil
- water
- insulating layer
- 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
Links
- 238000004804 winding Methods 0.000 claims description 23
- 210000003298 dental enamel Anatomy 0.000 claims description 17
- 238000009413 insulation Methods 0.000 claims description 13
- 238000003756 stirring Methods 0.000 claims description 10
- 239000004760 aramid Substances 0.000 claims description 8
- 229920003235 aromatic polyamide Polymers 0.000 claims description 8
- 239000003822 epoxy resin Substances 0.000 claims description 7
- 229920000647 polyepoxide Polymers 0.000 claims description 7
- 239000004593 Epoxy Substances 0.000 claims description 6
- 239000003365 glass fiber Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 229930185605 Bisphenol Natural products 0.000 claims description 4
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 4
- 239000003085 diluting agent Substances 0.000 claims description 4
- 229920001721 polyimide Polymers 0.000 claims description 4
- 150000001412 amines Chemical class 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 229920003055 poly(ester-imide) Polymers 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 2
- 239000004642 Polyimide Substances 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000004020 conductor Substances 0.000 description 7
- 230000006866 deterioration Effects 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- XPFVYQJUAUNWIW-UHFFFAOYSA-N furfuryl alcohol Chemical compound OCC1=CC=CO1 XPFVYQJUAUNWIW-UHFFFAOYSA-N 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 description 2
- 229920000784 Nomex Polymers 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000004763 nomex Substances 0.000 description 2
- HPILSDOMLLYBQF-UHFFFAOYSA-N 2-[1-(oxiran-2-ylmethoxy)butoxymethyl]oxirane Chemical compound C1OC1COC(CCC)OCC1CO1 HPILSDOMLLYBQF-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical compound C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
Landscapes
- Moulding By Coating Moulds (AREA)
- Continuous Casting (AREA)
- Reinforced Plastic Materials (AREA)
- Laminated Bodies (AREA)
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は、電磁攪拌装置に使用する水冷巻線
に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a water-cooled winding used in an electromagnetic stirring device.
［従来の技術］
電磁攪拌装置は、狭い場所に設置されるため、
大きさをコンパクトに設計する必要がある。ま
た、大電流を流して使用する場合があるので、巻
線すなわちコイルなど過熱する部分を冷却する必
要がある。コイルを空冷により冷却した電磁攪拌
装置の場合には、一般に３〜5A／mm2程度までの
最大電流密度で使用することができるが、最大電
流密度が10A／mm2を越えるような場合には使用す
ることができない。従つて、このような場合に
は、コイルを水冷にした電磁攪拌装置が使用され
ている。[Prior art] Since electromagnetic stirring devices are installed in narrow spaces,
It is necessary to design the size to be compact. In addition, since there are cases where a large current is passed through the device, it is necessary to cool parts that become overheated, such as the windings, that is, the coil. In the case of an electromagnetic stirring device whose coil is cooled by air cooling, it can generally be used at a maximum current density of about 3 to 5 A/ mm2 , but if the maximum current density exceeds 10A/ mm2, cannot be used. Therefore, in such cases, an electromagnetic stirring device with a water-cooled coil is used.
第１図はこの発明の水冷電磁攪拌装置における
巻線部の断面図であり、第２図は第１図の装置に
のコイルの拡大断面図であるが、この発明の水冷
電磁攪拌装置における巻線部の構成は、従来技術
の例えば特開昭53−25235号公報に記載の水冷電
磁攪拌装置における巻線部と構成が同じであるの
で、この公報に記載の水冷電磁攪拌装置における
巻線部についても、第１図及び第２図を援用して
説明する。 FIG. 1 is a cross-sectional view of the winding part in the water-cooled electromagnetic stirring device of the present invention, and FIG. 2 is an enlarged cross-sectional view of the coil in the device of FIG. The structure of the wire section is the same as that of the winding section in the water-cooled electromagnetic stirrer described in the prior art, for example, JP-A-53-25235, so the winding section in the water-cooled electromagnetic stirrer described in this publication is the same. will also be explained with reference to FIGS. 1 and 2.
第１図において、１は電線が小判形に巻かれた
巻線を構成するコイルであり、このコイル１に鉄
心２が挿入され、ウエツジ３やスペーサー４によ
つて鉄心２に固定される。鉄心２に固定されたコ
イル１は絶縁のため一体として樹脂が含浸処理さ
れる。 In FIG. 1, reference numeral 1 denotes a coil constituting a winding in which electric wire is wound into an oval shape. An iron core 2 is inserted into this coil 1, and is fixed to the iron core 2 with wedges 3 and spacers 4. The coil 1 fixed to the iron core 2 is integrally impregnated with resin for insulation.
第２図において、５は必要ターンで形成された
導体であり、例えば平角電線である。この導体５
の表面には例えばポリイミドフイルムが半重ね巻
で数回巻回され、ターン絶縁層６が形成される。
さらに、このターン絶縁層６の上層には例えばガ
ラステープが導体５を一括して２回半重ね巻で巻
回され、絶縁層７が主絶縁層として形成される。 In FIG. 2, 5 is a conductor formed of necessary turns, for example, a rectangular electric wire. This conductor 5
For example, a polyimide film is wound several times in a half-overlap manner on the surface of the turn insulating layer 6.
Further, on the upper layer of the turn insulating layer 6, for example, a glass tape is wound around the conductor 5 in two and a half turns to form an insulating layer 7 as a main insulating layer.
従来の水冷による電磁攪拌装置の場合、ターン
絶縁層６は耐水性の良い絶縁材料であることが必
要であり、空冷の場合の絶縁層７の主絶縁層の役
割も兼ねたものであることが必要である。従つ
て、この場合には絶縁層７は各々のターン導体５
を束ねる役割を果たし、且つターン絶縁層６で兼
ね備えた主絶縁すなわち耐水絶縁の役割をカバー
する働きを持つように絶縁層の役割が変えられ、
ターン絶縁層の負担が大きくなる。 In the case of a conventional water-cooled electromagnetic stirrer, the turn insulating layer 6 must be made of an insulating material with good water resistance, and in the case of air cooling, the turn insulating layer 6 must also serve as the main insulating layer. is necessary. Therefore, in this case the insulating layer 7 covers each turn conductor 5.
The role of the insulating layer is changed so that it plays the role of bundling the turn insulating layer 6 and also covers the role of main insulation, that is, water-resistant insulation, which is also performed by the turn insulating layer 6.
This increases the burden on the turn insulating layer.
［発明が解決しようとする問題点］
上記のような従来の電磁攪拌装置の巻線では、
ターン絶縁層６は耐水性であり、コイルターン間
の絶縁のみならず、コイルターン全体の絶縁（主
絶縁）の役割を果たすことが必要であるため、そ
の厚さが厚くなり、コイル全体として大きくなる
欠点があつた。また、フイルムを多層巻いて絶縁
層とした電線をコイル成形加工するので、加工劣
化を受けやすく、コイル１の寿命が短くなる欠点
があつた。一方、上記電線を成形加工してからタ
ーン絶縁層６を施すと、作業が繁雑で非常に工数
がかかり、経済的に不利になる欠点があつた。[Problems to be solved by the invention] In the winding of the conventional electromagnetic stirring device as described above,
The turn insulating layer 6 is water resistant and needs to play the role of not only insulating between coil turns but also insulating the entire coil turn (main insulation), so its thickness becomes thicker and the coil as a whole becomes larger. There was a drawback. Furthermore, since the wire is formed into a coil by winding multiple layers of film to form an insulating layer, it is susceptible to processing deterioration, resulting in a shortened lifespan of the coil 1. On the other hand, when the turn insulating layer 6 is applied after forming the electric wire, the work is complicated and requires a large number of man-hours, which is disadvantageous economically.
この発明は、かかる問題点を解決するためにな
されたもので、コイルの仕上がり寸法が小さく、
また、従来装置に比較して耐水性が非常に優れ、
寿命が長く、しかも機械的剛性にも優れた電磁攪
拌装置用水冷巻線を得ることを目的とする。 This invention was made to solve this problem, and the finished size of the coil is small.
In addition, it has superior water resistance compared to conventional equipment.
The purpose of the present invention is to obtain a water-cooled winding for an electromagnetic stirring device that has a long life and excellent mechanical rigidity.
［問題点を解決するための手段］
この発明に係る電磁攪拌装置用水冷巻線は、タ
ーン絶縁層として耐熱エナメルが焼付され少なく
とも一重のガラス繊維が巻回され、さらに樹脂で
処理された平角電線（エナメルDGC線）からな
る巻線に、主絶縁層として芳香族ポリアミドフイ
ルムが巻回され、さらにこの巻線にエポキシ樹脂
が含浸されたものである。[Means for Solving the Problems] The water-cooled winding for an electromagnetic stirrer according to the present invention is a rectangular electric wire in which heat-resistant enamel is baked as a turn insulating layer, at least one layer of glass fiber is wound, and the wire is further treated with a resin. Aromatic polyamide film is wound around a winding made of (enamel DGC wire) as the main insulating layer, and this winding is further impregnated with epoxy resin.
［作用］
この発明においては、上記エナメルDGC線の
巻線に芳香族ポリアミドフイルムが巻回され、こ
れにエポキシ樹脂が含浸、硬化されているので、
機械的に剛性が強く、耐水性に優れ、しかも長寿
命を達成することができる。[Function] In this invention, an aromatic polyamide film is wound around the winding of the enameled DGC wire, and this is impregnated with an epoxy resin and hardened.
It has strong mechanical rigidity, excellent water resistance, and can achieve a long life.
この発明に用いる耐熱エナメルとしては、ポリ
エステルエナメル、ポリエステルイミドエナメ
ル、ポリアミドエナメル、又はポリイミドエナメ
ルが使用でき、耐熱性に応じて選択することがで
きる。 As the heat-resistant enamel used in this invention, polyester enamel, polyesterimide enamel, polyamide enamel, or polyimide enamel can be used, and can be selected depending on heat resistance.
この発明に用いる芳香族ポリアミドフイルムと
しては、種々のものが使用でき、また、芳香族ポ
リアミドペーパーも使用できる。ノーメツクス
（NOMEX）＃410（デユポン社商品名）が好適に
使用できる。 Various aromatic polyamide films can be used in this invention, and aromatic polyamide paper can also be used. NOMEX #410 (trade name of DuPont) can be suitably used.
巻線に含浸されるエポキシ樹脂としては、例え
ばエポキシ当量150〜300のビスフエノール型エポ
キシ、反応性希釈剤例えばジグリシジルエーテル
系反応性希釈剤、及びアミン系硬化剤からなるエ
ポキシ樹脂が好適に使用できる。 As the epoxy resin impregnated into the winding wire, for example, an epoxy resin consisting of a bisphenol type epoxy having an epoxy equivalent of 150 to 300, a reactive diluent such as a diglycidyl ether type reactive diluent, and an amine type curing agent is preferably used. can.
［実施例］
第２図において、導体５として平角電線を使用
し、この平角電線にポリエステルイミドエナメル
を焼き付け、このエナメル層の表面にガラス繊維
を二重に巻付けワニスで処理してターン絶縁層６
とした。導体５は所要回数コイルに巻かれ、目的
とする形状に成形した。次に、厚さ0.13mm（５ミ
ル）、幅19mmの芳香族ポリアミドペーパー（ノー
メツクス（NOMEX、米国デユポン社商品名））
からなるテープを上記コイルに４回半重ね巻きし
た。このコイル１に第１図の鉄心２を挿入し、ウ
エツジ３、スペーサー４等を用いて固定し、結線
を行なつた。この結線部も上記と同様にターン絶
縁及び主絶縁を行い、さらにこのコイル１を、エ
ポキシ当量190のビスフエノール型エポキシ65部、
ブタンジオールジグリシジルエーテル20部、及び
モノエチルアミン３部をフルフリールアルコール
で溶解したもの20部からなるエポキシ樹脂を用い
て真空加圧含浸を行い、回転乾燥を行いながら、
含浸樹脂を重合硬化させた。[Example] In Fig. 2, a rectangular electric wire is used as the conductor 5, polyester imide enamel is baked on the rectangular electric wire, and glass fiber is wrapped twice on the surface of this enamel layer and treated with varnish to form a turn insulating layer. 6
And so. The conductor 5 was wound into a coil the required number of times and formed into the desired shape. Next, aromatic polyamide paper (NOMEX, trade name of DuPont, USA) with a thickness of 0.13 mm (5 mil) and a width of 19 mm was used.
A tape consisting of the following was wrapped around the above coil four and a half times. The iron core 2 shown in FIG. 1 was inserted into this coil 1, fixed using wedges 3, spacers 4, etc., and wired. Turn insulation and main insulation are performed in this connection section in the same manner as above, and this coil 1 is further insulated using 65 parts of bisphenol type epoxy with an epoxy equivalent of 190.
Vacuum pressure impregnation was carried out using an epoxy resin consisting of 20 parts of butanediol diglycidyl ether and 20 parts of monoethylamine dissolved in furfuryl alcohol, and while rotary drying,
The impregnated resin was polymerized and cured.
このようにして作つたコイルの水中課電劣化特
性について実験を行つた。この実験は、コイルを
水中に入れて電圧を印加した場合に、コイルがパ
ンクするまでの印加電圧と時間との関係から劣化
特性を求めるものである。このようにして得られ
た結果を第３図に示した。図中、曲線Ａはこの発
明によるコイルの場合、曲線Ｂは従来のコイルの
場合である。この図から、この発明によるコイル
の劣化特性は、従来のコイルに比較して遥かに優
れた特性を有することがわかる。これは、この発
明の主絶縁層７が非常に緻密になつているため、
耐水性、課電劣化がかなり向上したものと考えら
れる。従つて、従来、各ターン絶縁層６に耐水性
を持たせたものと比較して、遥かに優れた信頼性
を有する。 Experiments were conducted to determine the deterioration characteristics of the coils fabricated in this manner. In this experiment, when a coil is immersed in water and a voltage is applied, the deterioration characteristics are determined from the relationship between the applied voltage and the time until the coil becomes punctured. The results thus obtained are shown in FIG. In the figure, curve A is for the coil according to the present invention, and curve B is for the conventional coil. From this figure, it can be seen that the deterioration characteristics of the coil according to the present invention are far superior to those of conventional coils. This is because the main insulating layer 7 of the present invention is very dense.
It is thought that the water resistance and deterioration due to electrical charging have been significantly improved. Therefore, compared to the conventional structure in which each turn insulating layer 6 has water resistance, it has far superior reliability.
なお、上記実施例では、芳香族ポリアミドフイ
ルムを主絶縁として用いたが、ポリイミドフイル
ムを用いても上記と同様な効果が得られる。 In the above embodiment, an aromatic polyamide film was used as the main insulation, but the same effect as described above can be obtained even if a polyimide film is used.
［発明の効果］
この発明は以上説明したとおり、エナメルが焼
付けられた平角電線の表面に少なくとも一重にガ
ラス繊維が巻回され、さらにこのガラス繊維が樹
脂で処理されてターン絶縁としたエナメル−ガラ
ス複合電線からなる巻線に、芳香族ポリアミドフ
イルムが主絶縁として巻回され、該主絶縁が施さ
れた巻線にビスフエノール型エポキシ、反応性希
釈剤及びアミン系硬化剤からなるエポキシ樹脂が
含浸、硬化されていることによつて、ターン絶縁
層が強固でしかも耐水性に優れ、且つ安価な電磁
攪拌装置用水冷巻線が得られる効果がある。[Effects of the Invention] As explained above, the present invention is an enamel-glass in which glass fiber is wound at least once on the surface of a rectangular electric wire on which enamel is baked, and the glass fiber is further treated with a resin to provide turn insulation. An aromatic polyamide film is wound as the main insulation around a winding made of a composite wire, and the winding with the main insulation is impregnated with an epoxy resin made of bisphenol epoxy, a reactive diluent, and an amine curing agent. By being hardened, the turn insulating layer is strong and has excellent water resistance, and an inexpensive water-cooled winding for an electromagnetic stirrer can be obtained.
第１図はこの発明の一実施例による水冷電磁攪
拌装置における巻線部の断面図であり同時に従来
の水冷電磁攪拌装置における巻線部の断面図、第
２図は第１図の装置におけるコイルの拡大断面
図、第３図はこの発明の一実施例による又は従来
の水冷電磁攪拌装置に使用するコイルの水中課電
劣化特性を示す線図である。
図において、１はコイル、２は鉄心、３はウエ
ツジ、４はスペーサー、５は導体、６はターン絶
縁層、７は（主）絶縁層である。
FIG. 1 is a sectional view of a winding part in a water-cooled electromagnetic stirring device according to an embodiment of the present invention, and at the same time, a sectional view of a winding part in a conventional water-cooled electromagnetic stirring device, and FIG. 2 is a sectional view of a coil in the device of FIG. FIG. 3 is an enlarged cross-sectional view of FIG. 3, which is a diagram showing the deterioration characteristics of a coil used in an embodiment of the present invention or a conventional water-cooled electromagnetic stirrer when applied with electricity in water. In the figure, 1 is a coil, 2 is an iron core, 3 is a wedge, 4 is a spacer, 5 is a conductor, 6 is a turn insulating layer, and 7 is a (main) insulating layer.
Claims (1)
なくとも一重にガラス繊維が巻回され、さらにこ
のガラス繊維が樹脂で処理されてターン絶縁とし
たエナメル−ガラス複合電線からなる巻線に、芳
香族ポリアミドフイルムが主絶縁として巻回さ
れ、該主絶縁が施された巻線にビスフエノール型
エポキシ、反応性希釈剤及びアミン系硬化剤から
なるエポキシ樹脂が含浸、硬化されていることを
特徴とする電磁攪拌装置用水冷巻線。 ２ エナメルがポリエステルエナメル、ポリエス
テルイミドエナメル、ポリアミドエナメル、及び
ポリイミドエナメルからなる群から選ばれたエナ
メルである特許請求の範囲第１項記載の電磁攪拌
装置用水冷巻線。[Claims] 1. A winding made of an enamel-glass composite wire in which glass fiber is wound at least once on the surface of a rectangular wire with baked enamel, and the glass fiber is further treated with a resin to provide turn insulation. An aromatic polyamide film is wound as the main insulation, and the winding with the main insulation is impregnated and cured with an epoxy resin consisting of bisphenol epoxy, a reactive diluent, and an amine curing agent. A water-cooled winding for an electromagnetic stirrer featuring: 2. The water-cooled winding for an electromagnetic stirring device according to claim 1, wherein the enamel is an enamel selected from the group consisting of polyester enamel, polyesterimide enamel, polyamide enamel, and polyimide enamel.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60263804A JPS62124705A (en) | 1985-11-26 | 1985-11-26 | Water cooled winding for electromagnetic stirrer |
| KR1019860002803A KR900000433B1 (en) | 1985-11-26 | 1986-04-12 | Water-cooled winding for electromagnetic strirrer |
| CN86103439.2A CN1003546B (en) | 1985-11-26 | 1986-05-21 | Water-cooling winding for electromagnetic stirring device |
| US06/891,906 US4836769A (en) | 1985-11-26 | 1986-08-01 | Water-cooled winding for electromagnetic stirrer |
| AU61552/86A AU572029B2 (en) | 1985-11-26 | 1986-08-18 | Water-cooled winding for electromagnetic stirrer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60263804A JPS62124705A (en) | 1985-11-26 | 1985-11-26 | Water cooled winding for electromagnetic stirrer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62124705A JPS62124705A (en) | 1987-06-06 |
| JPH0342685B2 true JPH0342685B2 (en) | 1991-06-28 |
Family
ID=17394480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60263804A Granted JPS62124705A (en) | 1985-11-26 | 1985-11-26 | Water cooled winding for electromagnetic stirrer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62124705A (en) |
-
1985
- 1985-11-26 JP JP60263804A patent/JPS62124705A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62124705A (en) | 1987-06-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5621372A (en) | Single phase dry-type transformer | |
| US5596305A (en) | Strip wound coil with reinforced edge layer insulation | |
| US5574325A (en) | Impregnatable configuration of a carrier body and winding elements | |
| CA2105795C (en) | Method of manufacturing a strip wound coil to eliminate lead bulge | |
| EP1060486B1 (en) | A strip wound induction coil with improved heat transfer and short circuit withstandability | |
| US5383266A (en) | Method of manufacturing a laminated coil to prevent expansion during coil loading | |
| US6724118B2 (en) | Electrical isolation layer system strand assembly and method of forming for electrical generator | |
| KR900000433B1 (en) | Water-cooled winding for electromagnetic strirrer | |
| US3242358A (en) | Encapsulated electrical members and method of making the same | |
| JPH0342687B2 (en) | ||
| JPH0342685B2 (en) | ||
| JPH0464443B2 (en) | ||
| JPH0342689B2 (en) | ||
| JPH0342686B2 (en) | ||
| JPH06276706A (en) | Electric apparatus coil and electric apparatus having coil as well as its manufacture | |
| JPH0347723B2 (en) | ||
| JPH0342688B2 (en) | ||
| JP3030162B2 (en) | Rotating electric machine and method of manufacturing the same | |
| JPS58144563A (en) | Manufacture of coil conductor | |
| JP2863649B2 (en) | Corona shield layer | |
| JPS6059951A (en) | Coil insulating method of rotary electric machine | |
| JPH11346450A (en) | Stator coil for high tension rotating machine | |
| JPS62110451A (en) | Coil of rotary electric machine | |
| JPS594003A (en) | Winding for electrical machinery and apparatus | |
| JPS585581B2 (en) | Kaitendenkimakisennozetsuenhouhou |