以下の例示的な実施形態や変形例には、同様の構成要素が含まれている。よって、以下では、同様の構成要素には共通の符号が付されるとともに、重複する説明が省略される。
Similar components are included in the following exemplary embodiments and modifications. Therefore, below, the same code | symbol is attached | subjected to the same component, and the overlapping description is abbreviate | omitted.
本実施形態の変圧器１０は、例えば変電所等に設置される高圧変圧器であり、例えば、高さ７ｍ、長手方向の長さ１５ｍ、奥行きの長さ２ｍ等で、重量は数百トンに達する。図１に示すように、変圧器１０は、変圧器本体１２と、当該変圧器本体１２を内部に収容するタンク１４とを有する。変圧器本体１２は、図２で詳細に説明するが、鉄芯が複数の分割鉄芯で構成され、当該分割鉄芯のうち巻線用鉄芯の脚部に巻線（コイル）が巻回された単相ユニットで構成されている。この単相ユニットは、タンク１４の長手方向に連続して複数組み合わされて配列されている。また、単相ユニットは、タンク１４の上下方向に個別に移動可能である。タンク１４の上面には、単相ユニットごとに開閉蓋１４ａが設けられ、単相ユニット単体がタンク１４に対して出し入れ可能になっている。
The transformer 10 of the present embodiment is a high voltage transformer installed in a substation, for example, and has a height of 7 m, a length of 15 m in the longitudinal direction, a length of 2 m, and a weight of several hundred tons. Reach. As illustrated in FIG. 1, the transformer 10 includes a transformer main body 12 and a tank 14 that accommodates the transformer main body 12 therein. The transformer main body 12 will be described in detail with reference to FIG. 2, but the iron core is composed of a plurality of divided iron cores, and windings (coils) are wound around the legs of the winding iron cores of the divided iron cores. It consists of a single-phase unit. A plurality of the single-phase units are arranged in a continuous manner in the longitudinal direction of the tank 14. The single-phase unit can be moved individually in the vertical direction of the tank 14. On the upper surface of the tank 14, an open / close lid 14 a is provided for each single-phase unit so that the single-phase unit alone can be taken in and out of the tank 14.
なお、タンク１４の外壁面には、複数のブッシングポケット１６ａ，１６ｂが配置されている。ブッシングポケット１６ａ，１６ｂは変圧器１０を送電線や他の設備等につなげるための端子状部品で周囲が絶縁物で覆われている。また、タンク１４の上面には、当該タンク１４の内部に注入されている絶縁油が温度変化によって膨張した場合に、その膨張油量を吸収するためのコンサベータ１８が配置されている。
A plurality of bushing pockets 16 a and 16 b are arranged on the outer wall surface of the tank 14. The bushing pockets 16a and 16b are terminal-like parts for connecting the transformer 10 to a power transmission line, other equipment, etc., and the periphery is covered with an insulator. Further, a conservator 18 is disposed on the upper surface of the tank 14 to absorb the amount of the expanded oil when the insulating oil injected into the tank 14 expands due to a temperature change.
図２には、タンク１４に収容される変圧器本体１２の詳細な斜視図が示されている。また、図３には、図２の変圧器本体１２を分解した場合の斜視図が示されている。図４は、分割鉄芯の端部形状及び接続態様を示す拡大図である。図２に示される変圧器本体１２において磁路を形成する鉄芯は、分割鉄芯２０、分割鉄芯２２、分割鉄芯２４、分割鉄芯２６、分割鉄芯２８（本実施形態の場合例えば５個の分割鉄芯）で構成される。そして、分割鉄芯２２、分割鉄芯２４、分割鉄芯２６は、図４に示すように、主脚部３０ａと上部鉄芯３０ｂと下部鉄芯３０ｃを含む鉄芯であり、例えば略Ｉ字形状の軟鉄板を図４の紙面奥行き方向に複数枚積層してＩ型鉄芯として形成されている。つまり、分割鉄芯２２、分割鉄芯２４、分割鉄芯２６は、主脚部３０ａの上側に上部鉄芯３０ｂを有し、主脚部３０ａの下側に下部鉄芯３０ｃを有する。主脚部３０ａを含む分割鉄芯２２、分割鉄芯２４、分割鉄芯２６は巻線用鉄芯であり、巻線３２が装着されている。巻線３２は、例えば銅線で構成され、変圧器１０に要求される性能に応じた線径の線材が性能に応じた巻数で巻回される。なお、本実施形態の場合、巻線３２が装着される分割鉄芯２２、分割鉄芯２４、分割鉄芯２６は、前述したように略Ｉ字形状の軟鉄板を積層したＩ型鉄芯の主脚部３０ａに対し線材を巻回して単相ユニット３４（単相中身ともいう）を完成させている。他の実施形態では、分割鉄芯２２（分割鉄芯２４、分割鉄芯２６）を略Ｔ字形状と略矩形形状の軟鉄板で分割構成してもよい。例えば、略Ｔ字形状の軟鉄板を積層してＴ型鉄芯（主脚部３０ａと下部鉄芯３０ｃ）を形成することで、主脚部３０ａの一方側が開放された鉄芯となる。したがって、巻線３２を別工程で巻回してカセット状のブロック体（筒形状のコイル）としておき、主脚部３０ａの開放端側から挿入することができる。その後、略矩形形状の軟鉄板を積層した板状鉄芯（上部鉄芯３０ｂ）をＴ型鉄芯の主脚部３０ａの開放端側に接合することにより、Ｉ型鉄芯で製造した単相ユニット３４と同様な形状の単相ユニット３４とすることができる。なお、板状鉄芯（上部鉄芯３０ｂ）とＴ型鉄芯の主脚部３０ａとの接合は、後述する巻線３２交換時に上部鉄芯３０ｂと主脚部３０ａとが分離できるように、耐油性、耐熱性があり、上部鉄芯３０ｂと主脚部３０ａとを強固に接合できる固着材等によって接着することが望ましい。板状鉄芯（上部鉄芯３０ｂ）とＴ型鉄芯の主脚部３０ａを分離できる構成にすることで、変圧器１０から取り外した単相ユニット３４を分解した、巻線３２のみを交換することができる。つまり、鉄芯部分は、再利用可能となり、部品コストの低減に寄与することができる。
FIG. 2 is a detailed perspective view of the transformer main body 12 accommodated in the tank 14. FIG. 3 shows a perspective view when the transformer main body 12 of FIG. 2 is disassembled. FIG. 4 is an enlarged view showing the end shape and connection mode of the split iron core. 2 are divided iron core 20, divided iron core 22, divided iron core 24, divided iron core 26, and divided iron core 28 (in this embodiment, for example, 5 divided iron cores). As shown in FIG. 4, the divided iron core 22, the divided iron core 24, and the divided iron core 26 are iron cores including a main leg portion 30a, an upper iron core 30b, and a lower iron core 30c. A plurality of soft iron plates having a shape are stacked in the depth direction of FIG. 4 to form an I-type iron core. That is, the divided iron core 22, the divided iron core 24, and the divided iron core 26 have the upper iron core 30b on the upper side of the main leg portion 30a and the lower iron core 30c on the lower side of the main leg portion 30a. The split iron core 22, the split iron core 24, and the split iron core 26 including the main leg portion 30a are winding iron cores, and a winding 32 is mounted thereon. The winding 32 is made of, for example, a copper wire, and a wire having a wire diameter corresponding to the performance required for the transformer 10 is wound with the number of turns corresponding to the performance. In the case of the present embodiment, the divided iron core 22, the divided iron core 24, and the divided iron core 26 to which the windings 32 are attached are I-type iron cores in which soft iron plates having a substantially I shape are laminated as described above. A single-phase unit 34 (also referred to as a single-phase content) is completed by winding a wire around the main leg 30a. In another embodiment, the divided iron core 22 (divided iron core 24, divided iron core 26) may be divided and configured with a soft iron plate having a substantially T shape and a substantially rectangular shape. For example, by forming a T-shaped iron core (main leg portion 30a and lower iron core 30c) by laminating substantially T-shaped soft iron plates, an iron core in which one side of the main leg portion 30a is opened is obtained. Accordingly, the winding 32 can be wound in a separate process to form a cassette-like block body (cylindrical coil) and inserted from the open end side of the main leg 30a. Then, the single-phase manufactured with the I type iron core by joining the plate-shaped iron core (upper iron core 30b) which laminated | stacked the substantially rectangular soft iron plate to the open end side of the main leg part 30a of a T type iron core. A single-phase unit 34 having the same shape as the unit 34 can be obtained. In addition, the joining of the plate-shaped iron core (upper iron core 30b) and the main leg portion 30a of the T-shaped iron core is performed so that the upper iron core 30b and the main leg portion 30a can be separated when replacing the winding 32 described later. It is desirable to bond the upper iron core 30b and the main leg 30a with a fixing material or the like that has oil resistance and heat resistance and can be firmly joined. By replacing the single-phase unit 34 removed from the transformer 10, only the winding 32 is replaced by adopting a configuration in which the plate-shaped iron core (upper iron core 30b) and the main leg 30a of the T-shaped iron core can be separated. be able to. That is, the iron core portion can be reused, which can contribute to a reduction in component costs.
また、分割鉄芯２０、分割鉄芯２８は、側脚部３０ｄと上部鉄芯３０ｅと下部鉄芯３０ｆを含む鉄芯であり、例えば略Ｃ字形状の軟鉄板を図２の紙面奥行き方向に複数枚積層して形成されている。なお、側脚部３０ｄには巻線３２が装着されない。図２の変圧器本体１２は、例えば単相ユニット３４が３つとその両端に側脚部３０ｄを有する分割鉄芯２０及び分割鉄芯２８が配置された、いわゆる「５脚３相」タイプの変圧器本体１２である。
Further, the divided iron core 20 and the divided iron core 28 are iron cores including side leg portions 30d, upper iron cores 30e, and lower iron cores 30f. For example, a substantially C-shaped soft iron plate is arranged in the depth direction of FIG. It is formed by laminating a plurality of sheets. Note that the winding 32 is not attached to the side leg portion 30d. The transformer body 12 of FIG. 2 is a so-called “5-legged three-phase” type transformer in which, for example, three single-phase units 34 and divided iron cores 20 and 28 having side legs 30d at both ends are arranged. The main body 12.
前述したように、変圧器１０には耐用年数が設定されているが、変圧器１０を構成する部品の耐用年数は部品ごとに異なる。その中で、比較的耐用年数の短いものとして単相ユニット３４がある。単相ユニット３４が有する巻線３２は巻回される銅線を絶縁するために絶縁紙が使用されているが、この絶縁紙の劣化のために単相ユニット３４の交換が必要になる。したがって、変圧器１０の設置場所で単相ユニット３４が単体で交換可能であれば、変圧器１０の耐用年数を容易に延長(延命）することができる。
As described above, the service life of the transformer 10 is set, but the service life of the parts constituting the transformer 10 is different for each part. Among them, a single-phase unit 34 has a relatively short service life. The winding 32 of the single-phase unit 34 uses insulating paper to insulate the copper wire to be wound, but the single-phase unit 34 needs to be replaced because of the deterioration of the insulating paper. Therefore, if the single-phase unit 34 can be replaced alone at the place where the transformer 10 is installed, the useful life of the transformer 10 can be easily extended (prolonged).
本実施形態の変圧器本体１２は、複数の単相ユニット３４が、タンク１４（図１参照）の上下方向（矢印Ａ，Ｂ方向）に個別に移動できるように、タンク１４の長手方向（矢印Ｃ方向）に連続して組み合わされて配列されている。各分割鉄芯２０〜２８の上部鉄芯３０ｂ（３０ｅ）及び下部鉄芯３０ｃ（３０ｆ）の端部は、隣接する分割鉄芯の上部鉄芯３０ｂ（３０ｅ）及び下部鉄芯３０ｃ（３０ｆ）の端部と接続自在な雌雄形状を有する。図３には、分割鉄芯２０〜２８の端部の形状の一例が示されている。
The transformer main body 12 of the present embodiment is configured so that the plurality of single-phase units 34 can move individually in the vertical direction (arrow A, B direction) of the tank 14 (see FIG. 1). (C direction) are continuously combined and arranged. The ends of the upper iron core 30b (30e) and the lower iron core 30c (30f) of each divided iron core 20 to 28 are adjacent to the upper iron core 30b (30e) and the lower iron core 30c (30f) of the adjacent divided iron core. It has a male and female shape that can be connected to the end. FIG. 3 shows an example of the shape of the end portions of the divided iron cores 20 to 28.
例えば、分割鉄芯２０は、上部鉄芯３０ｅの端部２０ａ及び下部鉄芯３０ｆの端部２０ｂが、隣接する分割鉄芯２２の上部鉄芯３０ｂの端部２２ａ及び下部鉄芯３０ｃの端部２２ｂと接続できるように雌雄形状となっている。具体的には、分割鉄芯２０の上部鉄芯３０ｅの端部２０ａ及び下部鉄芯３０ｆの端部２０ｂは、それぞれ上面側が凹状の階段形状になっている。一方、分割鉄芯２２の上部鉄芯３０ｂの端部２２ａ及び下部鉄芯３０ｃの端部２２ｂは、上面側が凸状の階段形状になっている。その結果、タンク１４内に設置された分割鉄芯２０に対して、タンク１４の上方から分割鉄芯２２（単相ユニット３４）を接近（矢印Ｂ方向へ接近）させることにより、容易に分割鉄芯２０と分割鉄芯２２とを接続（結合）させ、単相ユニット３４の設置ができる。逆に、タンク１４内で分割鉄芯２０と分割鉄芯２２（単相ユニット３４）とが接続（結合）されていた場合、分割鉄芯２２（単相ユニット３４）をタンク１４の上方へ移動させる（矢印Ａ方向へ移動させる）ことにより容易に分離し、単相ユニット３４のみをタンク１４外に取り出すことができる。なお、分割鉄芯２０は、図３に示すように、上部鉄芯３０ｅの水平方向の長さＭが下部鉄芯３０ｆの水平方向の長さＮより短い。つまり、分割鉄芯２２（単相ユニット３４）をタンク１４の上下方向（矢印Ａ，Ｂ方向）に移動させる場合に、分割鉄芯２２の下部鉄芯３０ｃが分割鉄芯２０の上部鉄芯３０ｅと干渉しないようにしている。その結果、分割鉄芯２２（単相ユニット３４）のタンク１４の上下方向（矢印Ａ，Ｂ方向）の移動が容易になり、単相ユニット３４の設置作業性、交換作業性の向上に寄与している。
For example, in the split iron core 20, the end portion 20a of the upper iron core 30e and the end portion 20b of the lower iron core 30f are the end portions 22a of the upper iron core 30b of the adjacent divided iron core 22 and the end portions of the lower iron core 30c. It has a male and female shape so that it can be connected to 22b. Specifically, the end portion 20a of the upper iron core 30e and the end portion 20b of the lower iron core 30f of the divided iron core 20 each have a stepped shape in which the upper surface side is concave. On the other hand, the end 22a of the upper iron core 30b and the end 22b of the lower iron core 30c of the divided iron core 22 have a stepped shape whose upper surface is convex. As a result, the split iron core 22 (single-phase unit 34) is approached (approached in the direction of arrow B) from above the tank 14 with respect to the split iron core 20 installed in the tank 14, thereby easily dividing the split iron core. The single-phase unit 34 can be installed by connecting (coupling) the core 20 and the divided iron core 22. Conversely, when the split iron core 20 and the split iron core 22 (single-phase unit 34) are connected (coupled) in the tank 14, the split iron core 22 (single-phase unit 34) is moved above the tank 14. By separating (moving in the direction of arrow A), the single phase unit 34 can be taken out of the tank 14 easily. As shown in FIG. 3, in the divided iron core 20, the horizontal length M of the upper iron core 30e is shorter than the horizontal length N of the lower iron core 30f. That is, when the split iron core 22 (single phase unit 34) is moved in the vertical direction (arrow A, B direction) of the tank 14, the lower iron core 30c of the split iron core 22 is the upper iron core 30e of the split iron core 20. To avoid interference. As a result, it becomes easy to move the divided iron core 22 (single-phase unit 34) in the vertical direction (in the directions of arrows A and B) of the tank 14, and contributes to the improvement of installation workability and replacement workability of the single-phase unit 34. ing.
なお、分割鉄芯２０の下部鉄芯３０ｆの端部２０ｂには、分割鉄芯２２と接続させる場合の位置決めを行うための位置決め凸部２０ｃが形成されている。また、分割鉄芯２２の下部鉄芯３０ｃの端部２２ｂには、位置決め凸部２０ｃが収まる位置決め凹部（図示せず）が形成されている。分割鉄芯２０と分割鉄芯２２が接続されたときに位置決め凸部２０ｃと位置決め凹部とが結合することにより、分割鉄芯２０と分割鉄芯２２との接続時の位置決めが正確にできると共に、巻線３２に電流が流れた際の振動の発生を抑制することができる。
In addition, the positioning convex part 20c for positioning when connecting with the division | segmentation iron core 22 is formed in the edge part 20b of the lower iron core 30f of the division | segmentation iron core 20. As shown in FIG. In addition, a positioning recess (not shown) in which the positioning protrusion 20c is accommodated is formed at the end 22b of the lower iron core 30c of the divided iron core 22. When the divided iron core 20 and the divided iron core 22 are connected, the positioning convex portion 20c and the positioning concave portion are coupled to each other so that the positioning at the time of connecting the divided iron core 20 and the divided iron core 22 can be performed accurately. Generation of vibration when current flows through the winding 32 can be suppressed.
次に、分割鉄芯２２と分割鉄芯２４との接続部分について説明する。図３、図４に示すように、分割鉄芯２２の上部鉄芯３０ｂの端部２２ｃ及び下部鉄芯３０ｃの端部２２ｄは、雌雄形状の一種である凹凸形状を有する。また、隣接する分割鉄芯２４の上部鉄芯３０ｂの端部２４ａ及び下部鉄芯３０ｃの端部２４ｂは、分割鉄芯２２側の凹凸形状に接続可能な凹凸形状を有する。つまり、分割鉄芯２２と分割鉄芯２４との接続部も雌雄形状になっている。その結果、タンク１４内で分割鉄芯２２（単相ユニット３４）に対して、タンク１４の上方から分割鉄芯２４（単相ユニット３４）を接近させる（矢印Ｂ方向に接近させる）ことにより、容易に分割鉄芯２２（単相ユニット３４）と分割鉄芯２４（単相ユニット３４）とを接続させ、単相ユニット３４の設置ができる。逆に、タンク１４内で分割鉄芯２２（単相ユニット３４）と分割鉄芯２４（単相ユニット３４）とが接続されていた場合、いずれか一方をタンク１４の上方（矢印Ａ方向）へ移動させることにより容易に分離し、その単相ユニット３４のみをタンク１４外に取り出すことができる。なお、分割鉄芯２２の上部鉄芯３０ｂの端部２２ｃの凹凸形状と下部鉄芯３０ｃの端部２２ｄの凹凸形状とは、タンク１４の上下方向（矢印Ａ，Ｂ方向）について、同じ凹凸状態になっている。同様に、分割鉄芯２４の上部鉄芯３０ｂの端部２４ａの凹凸形状と下部鉄芯３０ｃの端部２４ｂの凹凸形状とは、タンク１４の上下方向（矢印Ａ，Ｂ方向）について、同じ凹凸状態になっている。つまり、分割鉄芯２４をタンク１４の上下方向に移動させるときに分割鉄芯２４の下部鉄芯３０ｃの凸部分は分割鉄芯２２の上部鉄芯３０ｂの凹部分を通過可能となり、移動時に干渉しないようにしている。その結果、分割鉄芯２２（単相ユニット３４）のタンク１４の上下方向（矢印Ａ，Ｂ方向）の移動は、直線移動のみでよく単相ユニット３４の設置作業性、交換作業性の向上に寄与できる。
Next, a connection portion between the divided iron core 22 and the divided iron core 24 will be described. As shown in FIGS. 3 and 4, the end 22c of the upper iron core 30b and the end 22d of the lower iron core 30c of the divided iron core 22 have a concavo-convex shape which is a kind of male and female shapes. Moreover, the edge part 24a of the upper iron core 30b of the adjacent division | segmentation iron core 24 and the edge part 24b of the lower iron core 30c have the uneven | corrugated shape which can be connected to the uneven | corrugated shape of the division | segmentation iron core 22 side. That is, the connecting portion between the divided iron core 22 and the divided iron core 24 is also a male and female shape. As a result, the divided iron core 24 (single phase unit 34) is approached from above the tank 14 with respect to the divided iron core 22 (single phase unit 34) in the tank 14 (approached in the direction of arrow B). The split iron core 22 (single phase unit 34) and the split iron core 24 (single phase unit 34) can be easily connected to install the single phase unit 34. Conversely, when the split iron core 22 (single-phase unit 34) and the split iron core 24 (single-phase unit 34) are connected in the tank 14, either one is directed above the tank 14 (arrow A direction). It is easily separated by moving, and only the single-phase unit 34 can be taken out of the tank 14. The uneven shape of the end 22c of the upper iron core 30b of the divided iron core 22 and the uneven shape of the end 22d of the lower iron core 30c are the same uneven state in the vertical direction of the tank 14 (arrows A and B directions). It has become. Similarly, the concavo-convex shape of the end 24a of the upper iron core 30b of the divided iron core 24 and the concavo-convex shape of the end 24b of the lower iron core 30c are the same concavo-convex in the vertical direction of the tank 14 (arrows A and B directions). It is in a state. That is, when the divided iron core 24 is moved in the vertical direction of the tank 14, the convex portion of the lower iron core 30 c of the divided iron core 24 can pass through the concave portion of the upper iron core 30 b of the divided iron core 22 and interferes when moving. I try not to. As a result, the vertical movement (in the directions of arrows A and B) of the tank 14 of the divided iron core 22 (single-phase unit 34) may be performed only by linear movement. Can contribute.
上述したように、分割鉄芯２２の上部鉄芯３０ｂの端部２２ｃと、分割鉄芯２４の上部鉄芯３０ｂの端部２４ａをそれぞれ接続可能な凹凸形状としている。同様に、分割鉄芯２２の下部鉄芯３０ｃの端部２２ｄと、分割鉄芯２４の下部鉄芯３０ｃの端部２４ｂをそれぞれ接続可能な凹凸形状としている。この凹凸形状が嵌り合うことにより、分割鉄芯２２（単相ユニット３４）と分割鉄芯２４（単相ユニット３４）が接続されたときの位置決めが正確にできると共に、巻線３２に電流が流れた際の振動の発生を抑制することができる。
As described above, the end 22c of the upper iron core 30b of the divided iron core 22 and the end 24a of the upper iron core 30b of the divided iron core 24 have an uneven shape that can be connected to each other. Similarly, the end 22d of the lower iron core 30c of the divided iron core 22 and the end 24b of the lower iron core 30c of the divided iron core 24 have a concave and convex shape that can be connected to each other. By fitting the concavo-convex shape, positioning when the divided iron core 22 (single-phase unit 34) and the divided iron core 24 (single-phase unit 34) are connected can be performed accurately, and a current flows through the winding 32. It is possible to suppress the occurrence of vibrations when hitting.
分割鉄芯２４と分割鉄芯２６との接続部分においても、分割鉄芯２２と分割鉄芯２４との接続部分と同様に、例えば凹凸状の雌雄形状を用いて接続することが可能で、同様の効果を有する。分割鉄芯２４と分割鉄芯２６との接続部分の雌雄形状は、その接続部分専用の形状としてもよいが、本実施形態の場合、分割鉄芯２６の上部鉄芯３０ｂの端部２６ａの形状及び下部鉄芯３０ｃの端部２６ｂの形状は、分割鉄芯２４の上部鉄芯３０ｂの端部２４ａの形状及び下部鉄芯３０ｃの端部２４ｂと結合するように形成されている。すなわち、分割鉄芯２２の主脚部３０ａの中央を上下方向に通過する中心線Ｐを中心に水平方向に１８０°回転させることで、分割鉄芯２２を分割鉄芯２６として使用することができる。このように、分割鉄芯２４の端部形状を１８０°回転した分割鉄芯２２の端部形状に対応させて形成することにより、分割鉄芯２２の流用ができる。また、１８０°回転した分割鉄芯２２は、分割鉄芯２４と接続しない側に端部２２ａ及び端部２２ｂがくることになる。前述したように、分割鉄芯２２の端部２２ａ及び端部２２ｂは、分割鉄芯２０の端部２０ａ及び端部２０ｂと対応する形状である。この場合、分割鉄芯２０を側脚部３０ｄを上下方向に通過する中心線Ｑを中心に水平方向に１８０°回転させることで、分割鉄芯２０を分割鉄芯２８として使用することができる。つまり、分割鉄芯２０の流用ができる。例えば、本実施形態の「５脚３相」の変圧器本体１２を形成する場合、鉄芯の形状としては、分割鉄芯２０、分割鉄芯２２、分割鉄芯２４の３種類を準備して、図３中左から分割鉄芯２０、分割鉄芯２２、分割鉄芯２４、分割鉄芯２２（１８０°回転）、分割鉄芯２０（１８０°回転）の順に配列すればよく、部品の共通化によるコスト低減が可能となる。
Similarly to the connecting portion between the divided iron core 22 and the divided iron core 24, the connecting portion between the divided iron core 24 and the divided iron core 26 can be connected using, for example, an uneven male and female shape. It has the effect of. The male / female shape of the connecting portion between the divided iron core 24 and the divided iron core 26 may be a shape dedicated to the connecting portion, but in the present embodiment, the shape of the end portion 26a of the upper iron core 30b of the divided iron core 26 is used. The shape of the end portion 26b of the lower iron core 30c is formed so as to be coupled to the shape of the end portion 24a of the upper iron core 30b of the divided iron core 24 and the end portion 24b of the lower iron core 30c. That is, the divided iron core 22 can be used as the divided iron core 26 by rotating it 180 degrees horizontally around the center line P passing through the center of the main leg portion 30a of the divided iron core 22 in the vertical direction. . In this way, by forming the end shape of the divided iron core 24 so as to correspond to the end shape of the divided iron core 22 rotated by 180 °, the divided iron core 22 can be diverted. Further, the split iron core 22 rotated by 180 ° has the end 22 a and the end 22 b on the side not connected to the split iron core 24. As described above, the end 22a and the end 22b of the split iron core 22 have shapes corresponding to the end 20a and the end 20b of the split iron core 20. In this case, the divided iron core 20 can be used as the divided iron core 28 by rotating the divided iron core 20 by 180 ° in the horizontal direction around the center line Q passing through the side legs 30d in the vertical direction. That is, the divided iron core 20 can be used. For example, when the “5-legged 3-phase” transformer body 12 of this embodiment is formed, three types of cores are prepared: a split core 20, a split core 22, and a split core 24. 3, the divided iron core 20, the divided iron core 22, the divided iron core 24, the divided iron core 22 (180 ° rotation), and the divided iron core 20 (180 ° rotation) may be arranged in this order. The cost can be reduced by the conversion.
言い換えれば、変圧器１０の鉄芯は、複数の分割鉄芯２０〜２８をタンク１４の長手方向に配列した場合の中央に位置する中央鉄芯（分割鉄芯２４）と、当該中央鉄芯（分割鉄芯２４）を中心に長手方向の一方側に配置される第１分割鉄芯群（分割鉄芯２０、分割鉄芯２２）と、中央鉄芯（分割鉄芯２４）を中心に長手方向の他方側に配置される第２分割鉄芯群（分割鉄芯２６、分割鉄芯２８）と、を有する。そして、第２分割鉄芯群（分割鉄芯２６、分割鉄芯２８）は第１分割鉄芯群（分割鉄芯２０、分割鉄芯２２）を中央鉄芯（分割鉄芯２４）を中心に水平方向に１８０°回転させて構成しているといえる。つまり、中央鉄芯（分割鉄芯２４）を挟んで、第１分割鉄芯群（分割鉄芯２０、分割鉄芯２２）と、第２分割鉄芯群（分割鉄芯２６、分割鉄芯２８）が対象形状となる。その結果、第１分割鉄芯群（分割鉄芯２０、分割鉄芯２２）と、第２分割鉄芯群（分割鉄芯２６、分割鉄芯２８）を同一形状として構成できるので、部品の共有、流用によるコスト削減に寄与できる。
In other words, the iron core of the transformer 10 includes a central iron core (divided iron core 24) located at the center when the plurality of divided iron cores 20 to 28 are arranged in the longitudinal direction of the tank 14, and the central iron core ( A first divided iron core group (divided iron core 20, divided iron core 22) arranged on one side in the longitudinal direction centering on the divided iron core 24) and a longitudinal direction centering on the central iron core (divided iron core 24) 2nd divided iron core group (divided iron core 26, divided iron core 28) arranged on the other side. The second divided iron core group (divided iron core 26, divided iron core 28) has the first divided iron core group (divided iron core 20, divided iron core 22) as the center iron core (divided iron core 24). It can be said that it is configured by rotating 180 ° in the horizontal direction. That is, the first divided iron core group (divided iron core 20, divided iron core 22) and the second divided iron core group (divided iron core 26, divided iron core 28) with the central iron core (divided iron core 24) interposed therebetween. ) Is the target shape. As a result, the first divided iron core group (divided iron core 20, divided iron core 22) and the second divided iron core group (divided iron core 26, divided iron core 28) can be configured in the same shape, so that parts can be shared. , Can contribute to cost reduction by diversion.
なお、図４に示す例の場合、例えば分割鉄芯２２の上部鉄芯３０ｂ（下部鉄芯３０ｃ）と分割鉄芯２４の上部鉄芯３０ｂ（下部鉄芯３０ｃ）の接続部分Ｆの形状は、当接面が平面の凹凸形状である場合を示した。他の実施形態では、図５に示すように、例えば分割鉄芯２２の上部鉄芯３０ｂと分割鉄芯２４の上部鉄芯３０ｂの当接面の一部、例えば分割鉄芯の配列方向の当接面に角度を有する凹凸形状としてもよい。このように、凹凸形状の一部に角度を形成することにより、接触面積が増加すると共に、矢印Ｄ，Ｅ方向のずれが生じ難くなり、巻線３２に電流が流れる場合の振動の発生抑制を効果的に実行できる。また、図３等に示す例では、上部鉄芯３０ｂの端部及び下部鉄芯３０ｃの端部の両方が雌雄形状（凹凸形状）を有する場合を示したが、雌雄形状（凹凸形状）は上部鉄芯３０ｂと下部鉄芯３０ｃのいずれか一方でもよく、例えば一方を平面接続としてもよい。この場合、分割鉄芯の形状の簡略化ができるので、コスト軽減に寄与できる。
In the case of the example shown in FIG. 4, for example, the shape of the connecting portion F between the upper iron core 30b (lower iron core 30c) of the divided iron core 22 and the upper iron core 30b (lower iron core 30c) of the divided iron core 24 is The case where the contact surface has a flat uneven shape is shown. In another embodiment, as shown in FIG. 5, for example, a part of the contact surface between the upper iron core 30b of the divided iron core 22 and the upper iron core 30b of the divided iron core 24, for example, the arrangement direction of the divided iron cores. It is good also as an uneven | corrugated shape which has an angle in a contact surface. In this way, by forming an angle in a part of the concavo-convex shape, the contact area is increased, and the deviation in the directions of the arrows D and E is less likely to occur. Can be executed effectively. Moreover, in the example shown in FIG. 3 etc., although the case where both the edge part of the upper iron core 30b and the edge part of the lower iron core 30c have a male and female shape (uneven shape) was shown, the male and female shape (uneven shape) is an upper part. Either one of the iron core 30b and the lower iron core 30c may be used. For example, one may be a plane connection. In this case, the shape of the divided iron core can be simplified, which can contribute to cost reduction.
このように構成される変圧器本体１２の単相ユニット３４をタンク１４に対して収容または取り出す場合の方法について図６を参照して説明する。なお、図６に示すタンク１４の場合、底面の内壁面側には、変圧器本体１２の鉄芯の一部を構成する補助鉄芯３６が例えば、分割鉄芯２２と分割鉄芯２４との間、及び分割鉄芯２４と分割鉄芯２６との間の２カ所に固定されている。補助鉄芯３６は、分割鉄芯２０〜２８と同様な材料で形成されている。補助鉄芯３６は、単相ユニット３４をタンク１４に収容する際の位置決め部材として機能して、単相ユニット３４の設置作業の軽減に寄与できる。図６の例の場合、補助鉄芯３６は直方体である。そのため、分割鉄芯２２の下部鉄芯３０ｃの端部２２ｄ、分割鉄芯２４の下部鉄芯３０ｃの端部２４ｂ及び端部２４ｄ、分割鉄芯２６の下部鉄芯３０ｃの端部２６ｂは、補助鉄芯３６の形状に対応して平面である。別の実施形態では、補助鉄芯３６を下部鉄芯３０ｃ側の雌雄形状と対応する形状としてもよい。
A method for accommodating or taking out the single-phase unit 34 of the transformer main body 12 configured as described above from the tank 14 will be described with reference to FIG. In the case of the tank 14 shown in FIG. 6, the auxiliary iron core 36 that constitutes a part of the iron core of the transformer body 12 is provided between the divided iron core 22 and the divided iron core 24 on the inner wall surface side of the bottom surface. And two places between the divided iron core 24 and the divided iron core 26. The auxiliary iron core 36 is formed of the same material as the divided iron cores 20 to 28. The auxiliary iron core 36 functions as a positioning member when the single-phase unit 34 is accommodated in the tank 14, and can contribute to the reduction of the installation work of the single-phase unit 34. In the example of FIG. 6, the auxiliary iron core 36 is a rectangular parallelepiped. Therefore, the end 22d of the lower iron core 30c of the divided iron core 22, the ends 24b and 24d of the lower iron core 30c of the divided iron core 24, and the end 26b of the lower iron core 30c of the divided iron core 26 are auxiliary. It is a flat surface corresponding to the shape of the iron core 36. In another embodiment, the auxiliary iron core 36 may have a shape corresponding to the male and female shape on the lower iron core 30c side.
図１に示すように、単相ユニット３４の設置位置に対応するタンク１４の上面壁には、開閉蓋１４ａが形成されているので、開閉蓋１４ａを開放した状態で単相ユニット３４をタンク１４の下方向（矢印Ｂ方向）に移動させることにより、単相ユニット３４を容易にタンク１４内部で長手方向（矢印Ｃ方向）に配列し、変圧器本体１２を組み立てることができる。
As shown in FIG. 1, an opening / closing lid 14a is formed on the upper surface wall of the tank 14 corresponding to the installation position of the single-phase unit 34. Therefore, the single-phase unit 34 is placed in the tank 14 with the opening / closing lid 14a open. By moving in the downward direction (arrow B direction), the single-phase units 34 can be easily arranged in the longitudinal direction (arrow C direction) inside the tank 14 and the transformer body 12 can be assembled.
同様に、タンク１４内部で長手方向（矢印Ｃ方向）に配列され、組み立てられている変圧器本体１２のうち一部の単相ユニット３４または全ての単相ユニット３４を交換する場合、交換対象となる単相ユニット３４に対応する開閉蓋１４ａを開放することにより、単相ユニット３４を単体で取り出すことができる。この場合、前述したように各分割鉄芯の上部鉄芯３０ｂ及び下部鉄芯３０ｃは上下移動時に干渉しないので、単相ユニット３４の取り出し作業が容易に実施できる。また、補助鉄芯３６がタンク１４の内側底面に固定されているので、単相ユニット３４の交換を行った場合も、タンク１４に対する単相ユニット３４の設置位置の再現性が維持できるので、変圧器１０の性能の安定化に寄与できる。また、単相ユニット３４は、タンク１４の上面の開閉蓋１４ａから上下方向（矢印Ａ，Ｂ方向）の移動により出し入れすることができるので、単相ユニット３４の出し入れに際してタンク１４の内部に満たされた絶縁油等を抜く必要がなく、作業効率がよい。なお、タンク１４の開閉蓋１４ａは、分割鉄芯２０及び分割鉄芯２８の設置位置の直上にも設けてもよい。この場合、分割鉄芯２０及び分割鉄芯２８の設置作業性や交換作業性の向上に寄与できる。
Similarly, when replacing some single-phase units 34 or all single-phase units 34 in the transformer body 12 arranged and assembled in the longitudinal direction (arrow C direction) inside the tank 14, By opening the opening / closing lid 14a corresponding to the single-phase unit 34, the single-phase unit 34 can be taken out alone. In this case, as described above, the upper iron core 30b and the lower iron core 30c of each divided iron core do not interfere when moving up and down, so that the single-phase unit 34 can be easily taken out. Further, since the auxiliary iron core 36 is fixed to the inner bottom surface of the tank 14, even when the single-phase unit 34 is replaced, the reproducibility of the installation position of the single-phase unit 34 with respect to the tank 14 can be maintained. This can contribute to the stabilization of the performance of the vessel 10. Further, since the single-phase unit 34 can be taken in and out by moving in the vertical direction (arrows A and B directions) from the opening / closing lid 14a on the upper surface of the tank 14, the tank 14 is filled into the tank when the single-phase unit 34 is taken in and out. There is no need to drain the insulation oil and the work efficiency is good. The open / close lid 14 a of the tank 14 may also be provided directly above the installation position of the divided iron core 20 and the divided iron core 28. In this case, it is possible to contribute to improvement in installation workability and replacement workability of the split iron core 20 and the split iron core 28.
上述したように、本実施形態の変圧器１０は、変圧器１０の設置場所、例えば発電所等で、単相ユニット３４の単体交換が可能になる。図７、図８は、単相ユニット３４を単体で、設置場所に搬送する場合の運搬荷姿、または工場等における保管荷姿に適した単相ユニット３４の被覆形態について説明する図である。
As described above, the transformer 10 according to the present embodiment enables the single-phase unit 34 to be replaced at a place where the transformer 10 is installed, for example, a power plant. FIG. 7 and FIG. 8 are diagrams for explaining a covering form of the single-phase unit 34 suitable for a carrying load form when the single-phase unit 34 is carried alone and transported to an installation place, or a storage load form in a factory or the like.
単相ユニット３４は、運搬や保管の際に外気、特に水分を多く含む空気に晒すと、巻線３２を構成する銅線の劣化や絶縁紙の劣化を招く虞がある。そのため、運搬や保管の際には、不活性ガスを満たした容器や真空タンクに収納して、密閉保存することが望ましい。本実施形態の単相ユニット３４の場合、上部鉄芯３０ｂ及び下部鉄芯３０ｃにそれぞれ、例えば板状の補助部材３８及び補助部材４０が装着可能になっている。補助部材３８及び補助部材４０は、例えば金属や樹脂、木材等で形成することができる。単相ユニット３４の場合、主脚部３０ａに巻線３２が装着されるが、巻線３２が上部鉄芯３０ｂや下部鉄芯３０ｃの外形より外側に膨れ上がってしまうことがある。そのため、補助部材３８は上部鉄芯３０ｂの外形形状より大きく構成され、補助部材４０は下部鉄芯３０ｃの外形形状より大きく構成することが望ましい。補助部材３８の上部鉄芯３０ｂへの装着方法、及び補助部材４０の下部鉄芯３０ｃへの装着方法は、適宜選択できるが、いずれの場合も仮固定できれば十分であり、例えば、嵌め合わせ構造や接着剤等により固定することができる。
If the single-phase unit 34 is exposed to the outside air, particularly air containing a large amount of moisture during transportation and storage, there is a risk of deteriorating the copper wire constituting the winding 32 and the insulating paper. Therefore, it is desirable to store in a container filled with an inert gas or a vacuum tank and store hermetically during transportation and storage. In the case of the single-phase unit 34 of the present embodiment, for example, a plate-like auxiliary member 38 and an auxiliary member 40 can be attached to the upper iron core 30b and the lower iron core 30c, respectively. The auxiliary member 38 and the auxiliary member 40 can be formed of metal, resin, wood, or the like, for example. In the case of the single-phase unit 34, the winding 32 is mounted on the main leg 30a, but the winding 32 may swell outward from the outer shape of the upper iron core 30b or the lower iron core 30c. Therefore, it is desirable that the auxiliary member 38 is configured larger than the outer shape of the upper iron core 30b, and the auxiliary member 40 is configured larger than the outer shape of the lower iron core 30c. The method of attaching the auxiliary member 38 to the upper iron core 30b and the method of attaching the auxiliary member 40 to the lower iron core 30c can be selected as appropriate. In either case, it is sufficient if temporary fixing is possible. It can be fixed with an adhesive or the like.
そして、補助部材３８及び補助部材４０を支持体として、その周囲を被覆体４２、例えば樹脂フィルム等で覆うことにより、単相ユニット３４、特に巻線３２を外気から遮断することができる。被覆体４２は、単相ユニット３４を被覆した状態で、不活性ガスの充填や真空状態の維持ができるような強度を有し、補助部材３８，４０や単相ユニット３４の形状に応じて自由に変化できる材料が好ましい。被覆体４２は、例えばエチレン−ビニルアルコールポリマー樹脂等の樹脂フィルムを採用することができるが、上述の強度や充填するガス等の充填材に耐性があればよく適宜選択可能である。このように、単相ユニット３４単体を被覆体４２で被覆することにより、単相ユニット３４の搬送及び保管が容易になり、変圧器１０の部品交換、耐用年数の延長作業等を低コスト、低労力で実現することができる。
Then, the auxiliary member 38 and the auxiliary member 40 are used as supports, and the periphery thereof is covered with a covering 42 such as a resin film, whereby the single-phase unit 34, particularly the winding 32, can be shielded from the outside air. The covering 42 has such a strength that it can be filled with an inert gas and can maintain a vacuum state in a state where the single-phase unit 34 is covered, and is free according to the shape of the auxiliary members 38 and 40 and the single-phase unit 34. A material that can be changed to is preferable. For example, a resin film such as an ethylene-vinyl alcohol polymer resin can be used as the covering body 42, and any material can be selected as long as it has resistance to the above-described strength and a filling material such as a gas to be filled. Thus, by covering the single-phase unit 34 alone with the cover 42, the single-phase unit 34 can be easily transported and stored, and parts replacement of the transformer 10, extension of the service life, etc. can be performed at low cost and low cost. Can be realized with effort.
以上、説明したように、本実施形態の変圧器１０では、例えば、タンク１４と、タンク１４に収容される変圧器本体１２であって、鉄芯を構成する複数の分割鉄芯２０〜２８と当該分割鉄芯２０〜２８のうち巻線用鉄芯（分割鉄芯２２〜２６）の脚部（主脚部３０ａ）に巻回される巻線３２とを有する複数の単相ユニット３４が、タンク１４の上下方向に個別に移動可能にタンク１４の長手方向に連続して組み合わせて配列されている。この構成によれば、例えは、単相ユニット３４単体をタンク１４の上下方向に移動することにより、タンク１４に対して単相ユニット３４の出し入れができる。その結果、変圧器１０の設置場所での単相ユニット３４の交換作業が容易になり、変圧器１０の耐用年数の延長（延命）作業を、変圧器１０全体を交換する場合に比べて低コスト、低労力で実現できる。
As described above, in the transformer 10 of the present embodiment, for example, the tank 14 and the transformer main body 12 accommodated in the tank 14, and a plurality of divided iron cores 20 to 28 constituting the iron core, A plurality of single-phase units 34 having windings 32 wound around the leg portions (main leg portions 30a) of the winding iron cores (divided iron cores 22 to 26) among the divided iron cores 20 to 28, The tanks 14 are arranged in continuous combination in the longitudinal direction of the tank 14 so as to be individually movable in the vertical direction of the tank 14. According to this configuration, for example, the single-phase unit 34 can be taken in and out of the tank 14 by moving the single-phase unit 34 alone in the vertical direction of the tank 14. As a result, the replacement work of the single-phase unit 34 at the installation location of the transformer 10 is facilitated, and the extension (life extension) of the useful life of the transformer 10 is lower than the case where the entire transformer 10 is replaced. Can be realized with low effort.
また、本実施形態の変圧器１０の分割鉄芯２０〜２８の端部（２０ａ，２０ｂ，２２ａ，２２ｂ，２２ｃ，２２ｄ，２４ａ，２４ｂ，２４ｃ，２４ｄ，２６ａ，２６ｂ，２６ｃ，２６ｄ，２８ａ，２８ｂ）は、例えば隣接する分割鉄芯の端部と接続自在な雌雄形状をしてもよい。この構成によれば、例えば、各分割鉄芯２０〜２８の位置決めが容易になり、単相ユニット３４の交換作業をスムーズに行うことができる。また、雌雄形状により各分割鉄芯２０〜２８が強固に接続できるので、巻線３２に電流が流れた際の振動の発生を抑制することができる。また、各分割鉄芯２０〜２８の接続状態の再現性を容易に確保できる。
Moreover, the edge part (20a, 20b, 22a, 22b, 22c, 22d, 24a, 24b, 24c, 24d, 26a, 26b, 26c, 26d, 28a, the split iron cores 20-28 of the transformer 10 of this embodiment. For example, 28b) may have a male and female shape that can be connected to the ends of adjacent divided iron cores. According to this configuration, for example, the positioning of each of the divided iron cores 20 to 28 is facilitated, and the replacement work of the single-phase unit 34 can be performed smoothly. Moreover, since each split iron core 20-28 can be firmly connected by the male and female shape, generation | occurrence | production of the vibration when an electric current flows into the coil | winding 32 can be suppressed. Moreover, the reproducibility of the connection state of each divided iron core 20 to 28 can be easily ensured.
また、本実施形態の変圧器１０の分割鉄芯２０〜２８の端部（２０ａ，２０ｂ，２２ａ，２２ｂ，２２ｃ，２２ｄ，２４ａ，２４ｂ，２４ｃ，２４ｄ，２６ａ，２６ｂ，２６ｃ，２６ｄ，２８ａ，２８ｂ）の雌雄形状は、当該分割鉄芯２０〜２８の上側端部と下側端部にそれぞれ形成してもよい。そして、分割鉄芯２０〜２８をタンク１４の上下方向に個別に移動させるときに、隣接する分割鉄芯２０〜２８の上側端部の雌雄形状と下側端部の雌雄形状が非干渉となるように形成されてもよい。この構成によれば、例えば、各分割鉄芯２０〜２８をタンク１４に対して出し入れする際に単純な上下移動が可能になり、分割鉄芯２０〜２８の交換作業が容易になる。
Moreover, the edge part (20a, 20b, 22a, 22b, 22c, 22d, 24a, 24b, 24c, 24d, 26a, 26b, 26c, 26d, 28a, the split iron cores 20-28 of the transformer 10 of this embodiment. The male and female shapes of 28b) may be formed at the upper end and the lower end of the divided iron cores 20 to 28, respectively. When the divided iron cores 20 to 28 are individually moved in the vertical direction of the tank 14, the male and female shapes at the upper end and the lower end of the adjacent divided iron cores 20 to 28 are non-interfering. It may be formed as follows. According to this configuration, for example, when the divided iron cores 20 to 28 are taken in and out of the tank 14, simple vertical movement is possible, and replacement work of the divided iron cores 20 to 28 is facilitated.
また、本実施形態の変圧器１０のタンク１４は、単相ユニット３４の上下方向の移動位置に対応する位置に開閉蓋１４ａを有してもよい。この構成によれば、タンク１４に対する単相ユニット３４ごとの出し入れが容易になり、単相ユニット３４の交換作業が迅速にできる。
In addition, the tank 14 of the transformer 10 of the present embodiment may have an opening / closing lid 14 a at a position corresponding to the vertical movement position of the single-phase unit 34. According to this configuration, the single phase unit 34 can be easily taken in and out of the tank 14, and the replacement work of the single phase unit 34 can be performed quickly.
また、本実施形態の変圧器１０の鉄芯は、複数の分割鉄芯２０〜２８をタンク１４の長手方向に配列した場合の中央に位置する中央鉄芯（分割鉄芯２４）と、当該中央鉄芯（分割鉄芯２４）を中心に長手方向の一方側に配置される第１分割鉄芯群（分割鉄芯２０、分割鉄芯２２）と、中央鉄芯（分割鉄芯２４）を中心に長手方向の他方側に配置される第２分割鉄芯群（分割鉄芯２６、分割鉄芯２８）と、を有する。第２分割鉄芯群（分割鉄芯２６、分割鉄芯２８）は第１分割鉄芯群（分割鉄芯２０、分割鉄芯２２）を中央鉄芯（分割鉄芯２４）を中心に水平方向に１８０°回転させて構成するようにしてもよい。この構成によれば、中央鉄芯（分割鉄芯２４）を挟んで、第１分割鉄芯群（分割鉄芯２０、分割鉄芯２２）と、第２分割鉄芯群（分割鉄芯２６、分割鉄芯２８）が対象形状となる。その結果、第１分割鉄芯群（分割鉄芯２０、分割鉄芯２２）と、第２分割鉄芯群（分割鉄芯２６、分割鉄芯２８）を同一形状として構成できるので、部品の共有、流用によるコスト削減に寄与できる。
Moreover, the iron core of the transformer 10 of the present embodiment includes a central iron core (divided iron core 24) located at the center when the plurality of divided iron cores 20 to 28 are arranged in the longitudinal direction of the tank 14, and the center. A first divided iron core group (divided iron core 20 and divided iron core 22) arranged on one side in the longitudinal direction around the iron core (divided iron core 24), and a central iron core (divided iron core 24). And a second divided iron core group (divided iron core 26, divided iron core 28) disposed on the other side in the longitudinal direction. In the second divided iron core group (divided iron core 26, divided iron core 28), the first divided iron core group (divided iron core 20, divided iron core 22) is horizontally oriented around the central iron core (divided iron core 24). It may be configured to be rotated 180 °. According to this configuration, the first divided iron core group (divided iron core 20, divided iron core 22) and the second divided iron core group (divided iron core 26, with the central iron core (divided iron core 24) sandwiched therebetween. The divided iron core 28) is the target shape. As a result, the first divided iron core group (divided iron core 20, divided iron core 22) and the second divided iron core group (divided iron core 26, divided iron core 28) can be configured in the same shape, so that parts can be shared. , Can contribute to cost reduction by diversion.
また、本実施形態の変圧器１０に用いる変圧器用の単相ユニット３４は、単独で取り扱いできるようにしてもよい。この構成によれば、変圧器１０を構成する単相ユニット３４の部分的な交換により、変圧器１０の耐用年数の延長（延命）が容易にできる。
Moreover, you may enable it to handle the single phase unit 34 for transformers used for the transformer 10 of this embodiment independently. According to this configuration, the service life of the transformer 10 can be easily extended (life extension) by partial replacement of the single-phase unit 34 constituting the transformer 10.
また、本実施形態の変圧器１０用の単相ユニット３４は、巻線用鉄芯（分割鉄芯２２〜２６）によって支持される被覆体４２によって、巻線用鉄芯（分割鉄芯２２〜２６）と巻線３２とが被覆されるようにしてもよい。この構成によれば、単相ユニット３４を個別に容易に搬送用の荷姿、保管用の荷姿にすることが可能で、単相ユニット３４の搬送や保存が低コストで容易にできる。
In addition, the single-phase unit 34 for the transformer 10 according to the present embodiment includes a winding core (divided iron cores 22 to 26) supported by a covering 42 supported by the winding core (divided iron cores 22 to 26). 26) and the winding 32 may be covered. According to this configuration, the single-phase unit 34 can be easily and individually packaged for transport and storage, and the single-phase unit 34 can be easily transported and stored at low cost.
また、本実施形態の変圧器１０用の単相ユニット３４の巻線用鉄芯(分割鉄芯２２〜２６)は、補助部材３８，４０が装着可能に構成され、巻線用鉄芯(分割鉄芯２２〜２６)と巻線３２とが補助部材３８，４０に支持される被覆体４２によって被覆可能に構成されてもよい。この構成によれば、補助部材３８，４０によって、巻線用鉄芯(分割鉄芯２２〜２６)と巻線３２とを覆う領域を容易に定めることが可能で、巻線用鉄芯(分割鉄芯２２〜２６)と巻線３２を実質的非接触で被覆体４２内に納めることが可能になり、運搬、保管品質の向上ができる。
Further, the winding iron cores (divided iron cores 22 to 26) of the single-phase unit 34 for the transformer 10 according to the present embodiment are configured so that the auxiliary members 38 and 40 can be mounted, and the winding iron cores (dividing The iron cores 22 to 26) and the windings 32 may be configured to be covered by a covering body 42 supported by the auxiliary members 38 and 40. According to this configuration, it is possible to easily determine a region covering the winding iron core (divided iron cores 22 to 26) and the winding 32 by the auxiliary members 38 and 40. The iron cores 22 to 26) and the windings 32 can be accommodated in the covering 42 in a substantially non-contact manner, and the quality of transportation and storage can be improved.
なお、上述した実施形態において、変圧器本体１２の鉄芯は５個の分割鉄芯で構成する例を示したが、分割鉄芯の構成数は、変圧器１０の性能や仕様によって適宜選択可能であり、分割鉄芯の配列数が異なる場合でも、上述した本実施形態と同様の効果を得ることができる。
In the above-described embodiment, the example in which the iron core of the transformer main body 12 is configured by five divided iron cores has been shown. However, the number of the divided iron cores can be appropriately selected depending on the performance and specifications of the transformer 10. Even when the number of arrangements of the divided iron cores is different, the same effect as the above-described embodiment can be obtained.
以上、本発明の実施形態や変形例を例示したが、上記実施形態や変形例はあくまで一例であって、発明の範囲を限定することは意図していない。これら実施形態や変形例は、その他の様々な形態で実施されることが可能であり、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、組み合わせ、変更を行うことができる。これら実施形態やその変形は、発明の範囲や要旨に含まれるとともに、特許請求の範囲に記載された発明とその均等の範囲に含まれる。また、各実施形態や変形例の構成は、部分的に入れ替えて実施することも可能である。
As mentioned above, although embodiment and the modification of this invention were illustrated, the said embodiment and modification are an example to the last, Comprising: It is not intending limiting the range of invention. These embodiments and modifications can be implemented in various other forms, and various omissions, replacements, combinations, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof. In addition, the configurations of the respective embodiments and modifications can be partially exchanged.
