JPH02893Y2 - - Google Patents
Info
- Publication number
- JPH02893Y2 JPH02893Y2 JP1984109435U JP10943584U JPH02893Y2 JP H02893 Y2 JPH02893 Y2 JP H02893Y2 JP 1984109435 U JP1984109435 U JP 1984109435U JP 10943584 U JP10943584 U JP 10943584U JP H02893 Y2 JPH02893 Y2 JP H02893Y2
- Authority
- JP
- Japan
- Prior art keywords
- coil
- insulating
- coils
- winding
- electrical equipment
- 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
Links
- 125000006850 spacer group Chemical group 0.000 claims description 17
- 238000004804 winding Methods 0.000 claims description 17
- 239000011810 insulating material Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 description 5
- 230000005284 excitation Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Insulating Of Coils (AREA)
Description
【考案の詳細な説明】
〔考案の技術分野〕
本考案は巻線が角板コイルなど真円をなしてい
ないコイルで形成した変圧器などの、コイル相間
の短絡防止構造を改良した電気機器巻線に関する
ものである。[Detailed description of the invention] [Technical field of the invention] This invention is an electrical equipment winding with an improved short-circuit prevention structure between coil phases, such as transformers whose windings are formed of square plate coils or other non-circular coils. It's about lines.
一般に変圧器やリアクトルなどの電気機器に用
いるコイルは巻線が円板コイルなど円形のものが
多く用いられているが、これはコイルを収納する
角形タンクとの間の隙間が大きいのでスペースフ
アクターを良くするため、第１図乃至第３図に示
すような、巻線が角板コイルで形成されたものも
使用されている。
In general, coils used in electrical equipment such as transformers and reactors often have circular windings, such as disk coils, but this creates a space factor because there is a large gap between the coil and the rectangular tank that houses it. In order to improve the performance, windings formed of rectangular plate coils as shown in FIGS. 1 to 3 are also used.
これは枠状に形成された鉄心１の三本の脚鉄心
１ａに、角板コイル２を巻回して三相のコイル３
Ａ，３Ｂ，３Ｃを形成して、角形タンク４内に収
納したものである。前記コイル３Ａ，３Ｂ，３Ｃ
は、第３図Ａに示すように、コイル内周側に立設
したレール５に、その一端を支持された絶縁スペ
ーサ６を介して角板コイル２が交互に積層された
構造をなしている。 This is a three-phase coil 3 by winding a rectangular plate coil 2 around the three leg cores 1a of a frame-shaped core 1.
A, 3B, and 3C are formed and housed in a rectangular tank 4. Said coils 3A, 3B, 3C
As shown in FIG. 3A, the square plate coils 2 are stacked alternately on a rail 5 erected on the inner circumferential side of the coil with insulating spacers 6 supported at one end thereof. .
上記構造のコイル３Ａ，３Ｂ，３Ｃは、角形タ
ンク４との隙間が小さく、タンク内を有効に利用
できるためタンクを小型化できる利点がある。 The coils 3A, 3B, 3C having the above structure have a small gap with the rectangular tank 4, and the inside of the tank can be used effectively, so there is an advantage that the tank can be made smaller.
しかしながら励磁突流を生ずると、角板コイル
２は円形に広がろうとする力が働き、次第に変形
してきて、遂には第３図Ｂに示すようにコイル３
Ａとコイル３Ｂとの相間で対向する角板コイル
２，２が接触して短絡事故が発生する恐れがあつ
た。 However, when an excitation rush is generated, a force acts on the rectangular plate coil 2 to spread it into a circular shape, causing it to gradually deform, and finally, as shown in FIG. 3B, the coil 3
There was a risk that the opposing square plate coils 2, 2 would come into contact between the phases of coil A and coil 3B, resulting in a short circuit accident.
このため、第４図Ａに示すように相間に絶縁板
７を介在させて、コイル変形による短絡防止構造
が従来探られてきた。しかしながら、この構造で
は励磁突流による変形に対してはコイル短絡を防
止することはできるが、第４図Ｂに示すように角
板コイル２の変形自身を防止することができない
ため、次第に角板コイル２の対向する周面が絶縁
板７に密着して行く。この結果絶縁油の流路８が
塞がれ、冷却効果が低下してコイルの劣化を早
め、又、一次コイルのみ変形し二次コイルとの上
下方向ビルドが不ぞろいになり、上下方向機械力
を十分押ええれない欠点があつた。 Therefore, as shown in FIG. 4A, an insulating plate 7 is interposed between the phases to prevent short circuits caused by coil deformation. However, with this structure, although it is possible to prevent the coil from shorting due to the deformation caused by the excitation rush, it is not possible to prevent the deformation of the square plate coil 2 itself as shown in FIG. 4B, so the square plate coil gradually The opposing circumferential surfaces of 2 come into close contact with the insulating plate 7. As a result, the insulating oil flow path 8 is blocked, the cooling effect is reduced, and the coil deteriorates faster.Also, only the primary coil is deformed, and the vertical build with the secondary coil is uneven, which increases the vertical mechanical force. There were some flaws that I couldn't fully overcome.
〔考案の目的〕
本考案は、かかる欠点を除去して、コイル変形
によるコイル短絡を防止すると共に、絶縁油の流
路を確保して有効に冷却を行うことができる電気
機器巻線を提供することを目的とするものであ
る。[Purpose of the invention] The present invention provides an electrical equipment winding that can eliminate such drawbacks, prevent coil short circuits due to coil deformation, and ensure a flow path for insulating oil to perform effective cooling. The purpose is to
巻線が角板コイルなど真円をなしていないコイ
ルを複数相並設した電気機器巻線において、コイ
ルの巻線層間に配置した絶縁スペーサと、隣接す
るコイルの絶縁スペーサとの間の相間に絶縁物で
形成された棒状の間隔保持材を軸方向に沿つて介
在させ、前記間隔保持材をコイルのストツパーと
してコイルの変形を防止するようにしたことを特
徴とするものである。
In electrical equipment windings in which multiple phases of coils such as square plate coils are arranged in parallel, the insulating spacer placed between the winding layers of the coil and the insulating spacer of the adjacent coil. The present invention is characterized in that a rod-shaped spacing material made of an insulating material is interposed along the axial direction, and the spacing material serves as a stopper for the coil to prevent deformation of the coil.
以下本考案の一実施例を第５図および第６図を
参照して詳細に説明する。
An embodiment of the present invention will be described in detail below with reference to FIGS. 5 and 6.
絶縁スペーサ６は板状をなし、その一端にＴ形
の溝９が形成され、他端に凹形の溝１０が形成さ
れている。コイル内周側には、適宜な間隔で断面
Ｔ形状のレール５が立設され、ここに前記絶縁ス
ペーサ６のＴ形の溝９を嵌合させて、同一平面上
に複数枚の絶縁スペーサ６…を放射状に配置す
る。またコイル３Ａ，３Ｂ，３Ｃの相間中央部
に、絶縁材で形成された断面長方形をなす棒状の
間隔保持材１１…を間隔をおいて立設し、ここに
前記絶縁スペーサ６の他端に形成した凹形の溝１
０を嵌合させる。この後、絶縁スペーサ６…の上
に、角板コイル２を載せ、更にこの上に絶縁スペ
ーサ６をレール５と、間隔保持材１１に嵌合させ
て載せ、以下交互に積層して第６図Ａに示すよう
にコイル３Ａ，３Ｂ，３Ｃを形成する。 The insulating spacer 6 has a plate shape, and has a T-shaped groove 9 formed at one end and a concave groove 10 formed at the other end. On the inner circumferential side of the coil, rails 5 having a T-shaped cross section are provided at appropriate intervals, and the T-shaped grooves 9 of the insulating spacers 6 are fitted into the rails 5, so that a plurality of insulating spacers 6 are arranged on the same plane. ...arranged radially. Further, rod-shaped spacing members 11 made of an insulating material and having a rectangular cross section are erected at intervals in the center between the phases of the coils 3A, 3B, and 3C. concave groove 1
0 is fitted. After that, the rectangular plate coil 2 is placed on the insulating spacers 6, and then the insulating spacers 6 are placed on top of this by fitting into the rail 5 and the spacing material 11, and then they are stacked alternately as shown in Fig. 6. Coils 3A, 3B, and 3C are formed as shown in A.
なお、前記間隔保持材１１は、例えば強化木、
積層コンパウンド、プレスボード、FRPなどの
絶縁物で形成されている。 Note that the spacer 11 is made of reinforced wood, for example.
It is made of insulating materials such as laminated compound, pressboard, and FRP.
従つて上記電気機器巻線によれば、励磁突流に
より、角形タンク２が広がつて変形しようとする
と、相間の絶縁スペーサ６，６間に軸方向に沿つ
て設けた間隔保持材１１に当接し、これがストツ
パーとなつて、第６図Ｂに示すように、それ以上
のコイル変形が防止される。このためコイル３
Ａ，３Ｂ，３Ｃの相間のコイル短絡を防止するこ
とができる。また角板コイル２が、ストツパーと
なる間隔保持材１１に当接した状態でも、第５図
に仮想線で示すように、隣接する間隔保持材１
１，１１の間に空間が形成されているので、ここ
が絶縁油の流路８として保持される。 Therefore, according to the electrical equipment winding described above, when the rectangular tank 2 tries to expand and deform due to the excitation rush, it comes into contact with the spacer 11 provided along the axial direction between the insulating spacers 6, 6 between the phases. , which acts as a stopper to prevent further deformation of the coil, as shown in FIG. 6B. Therefore, coil 3
Coil short circuits between phases A, 3B, and 3C can be prevented. Furthermore, even when the square plate coil 2 is in contact with the spacing material 11 that serves as a stopper, as shown by the imaginary line in FIG.
Since a space is formed between 1 and 11, this space is held as a flow path 8 for the insulating oil.
第７図は本考案の他の実施例を示すもので、絶
縁スペーサ６の相間側に溝を設けず、間隔保持材
１１を断面Ｈ形をなす棒状に形成し、この凹溝１
０，１０に両側から絶縁スペーサ６，６の先端を
嵌合させて、介在させたものである。 FIG. 7 shows another embodiment of the present invention, in which no groove is provided on the interphase side of the insulating spacer 6, and the spacing member 11 is formed into a rod shape with an H-shaped cross section, and this groove 1
0 and 10 are interposed by fitting the tips of insulating spacers 6 and 6 from both sides.
なお上記実施例では角形コイルの場合について
示したが、楕円コイルなど、真円でないコイルで
あれば何れの形状のものにも適用することができ
る。 In the above embodiments, the case of a rectangular coil is shown, but the present invention can be applied to any shape of coil that is not a perfect circle, such as an elliptical coil.
以上説明した如く、本考案によれば対向する相
間の絶縁スペーサ間に、軸方向に沿つて棒状の間
隔保持材を介在させることにより、これがストツ
パーとなつてコイル変形によるコイル短絡を防止
できると共に、絶縁油の流路を確保して有効に冷
却できる電気機器巻線を得ることができる。
As explained above, according to the present invention, by interposing a rod-shaped spacing member along the axial direction between the insulating spacers between opposing phases, this serves as a stopper and can prevent coil short circuits due to coil deformation. It is possible to obtain an electrical device winding that can secure a flow path for insulating oil and can be effectively cooled.
第１図は従来の三相変圧器の内部構成を示す正
面図、第２図は第１図の平面図、第３図Ａは従来
の巻線を示す要部縦断正面図、同図Ｂはコイルが
変形した状態を示す要部縦断正面図、第４図Ａは
相間に絶縁板を設けた巻線の要部縦断正面図、同
図Ｂはコイルが変形した状態を示す要部縦断正面
図、第５図は本考案の一実施例による巻線を示す
横断平面図、第６図Ａは第５図の縦断正面図、同
図Ｂはコイルが変形した状態を示す縦断正面図、
第７図は本考案の他の実施例による巻線の横断平
面図である。
１……鉄心、２……角板コイル、３Ａ，３Ｂ，
３Ｃ……コイル、４……角形タンク、６……絶縁
スペーサ、７……絶縁板、８……流路、９，１０
……溝、１１……間隔保持材。
Fig. 1 is a front view showing the internal configuration of a conventional three-phase transformer, Fig. 2 is a plan view of Fig. 1, Fig. 3 A is a longitudinal sectional front view of main parts showing a conventional winding, and Fig. 3 B is a front view showing the internal structure of a conventional three-phase transformer. FIG. 4A is a longitudinal sectional front view of the main part showing the coil in a deformed state; FIG. 4A is a longitudinal sectional front view of the main part of the winding with an insulating plate between the phases; FIG. , FIG. 5 is a cross-sectional plan view showing a winding according to an embodiment of the present invention, FIG. 6A is a vertical cross-sectional front view of FIG. 5, and FIG. 6 B is a vertical cross-sectional front view showing the coil in a deformed state.
FIG. 7 is a cross-sectional plan view of a winding according to another embodiment of the present invention. 1... Iron core, 2... Square plate coil, 3A, 3B,
3C... Coil, 4... Square tank, 6... Insulating spacer, 7... Insulating plate, 8... Channel, 9, 10
... Groove, 11 ... Spacing material.
Claims (1)
ルを複数相並設した電気機器巻線において、螺旋
状に巻回したコイルの巻線層間に横方向に配置し
た絶縁スペーサと、隣接するコイルの絶縁スペー
サとの間の相間に絶縁物で形成された棒状の間隔
保持材を軸方向に沿つて介在させ、且つこの間隔
保持材の側面とコイルから突出した絶縁スペーサ
の端部とを嵌合させて一体に接続したことを特徴
とする電気機器巻線。 In electrical equipment windings in which multiple phases of coils such as square plate coils are arranged in parallel, an insulating spacer placed laterally between the winding layers of a spirally wound coil and an adjacent coil are used. A rod-shaped spacing member made of an insulating material is interposed along the axial direction between the insulating spacers of An electrical equipment winding characterized in that the wires are connected integrally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10943584U JPS6127217U (en) | 1984-07-19 | 1984-07-19 | electrical equipment winding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10943584U JPS6127217U (en) | 1984-07-19 | 1984-07-19 | electrical equipment winding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6127217U JPS6127217U (en) | 1986-02-18 |
| JPH02893Y2 true JPH02893Y2 (en) | 1990-01-10 |
Family
ID=30668583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10943584U Granted JPS6127217U (en) | 1984-07-19 | 1984-07-19 | electrical equipment winding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6127217U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54162122A (en) * | 1978-06-08 | 1979-12-22 | Westinghouse Electric Corp | Induction electrical apparatus |
-
1984
- 1984-07-19 JP JP10943584U patent/JPS6127217U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54162122A (en) * | 1978-06-08 | 1979-12-22 | Westinghouse Electric Corp | Induction electrical apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6127217U (en) | 1986-02-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6750749B2 (en) | Amorphous metal core transformer | |
| US3447112A (en) | Air cooled transformer | |
| GB1354304A (en) | Power transformer incorporating heat dissipation means | |
| US3577109A (en) | Magnetic shielding construction for electric transformers | |
| JPH02893Y2 (en) | ||
| JP6552779B1 (en) | Stationary inductor | |
| US3287682A (en) | Core insulation for protection against impulse voltage | |
| US2456941A (en) | Transformer structure | |
| US3160839A (en) | Electrical inductive apparatus | |
| JP3461889B2 (en) | Gas insulated transformer | |
| JPH0742959U (en) | Multi-step board winding | |
| JP2539669Y2 (en) | Helical coil | |
| TWI638371B (en) | Core joint construction of electromagnetic machine | |
| JPH0512995Y2 (en) | ||
| JPH0548604B2 (en) | ||
| JPS5919375Y2 (en) | coil bobbin | |
| JPS5821159Y2 (en) | Trance | |
| JPH0119379Y2 (en) | ||
| JPS63193512A (en) | Transformer | |
| JPS6012256Y2 (en) | electrical equipment | |
| JPS6242514Y2 (en) | ||
| JPH0410666Y2 (en) | ||
| JPS6144416Y2 (en) | ||
| JPS6258643B2 (en) | ||
| Saadeghvaziri et al. | Qualitative assessment of seismic response of internal components of power transformers |