TAP-EQUIPPED TRANSFORMER

• Main Authors: MORIMOTO TAKASHI, SHINONAGA YUJI, ISHII YUKI
• Format: Patent
• Language: English; Japanese
• Published: 27.05.2021
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; BASIC ELECTRIC ELEMENTS; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; INDUCTANCES; MAGNETS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TRANSFORMERS

To provide a tap-equipped transformer that can deal with by a smaller number of tap positions than P×S contained in a tap provided on the primary side for P voltages (P is an integer of 3 or more) on the primary side and S voltages (S is an integer of 2 or more) on the secondary side.SOLUTION: A tap-equipped transformer (40) includes intermediate taps (41c and 41d, 42c and 42d, 43c and 43d) including a plurality of taps in the middle of primary windings (411, 421, 431), and a tap voltage on the primary side can be switched. The plurality of taps include J tap positions (t1 to t9) (J is an integer of 5 or more), and from among the J tap positions, specific continuous P tap positions (t1 to t5) (P is an integer of 3 or more, and J-2 or less) are associated with each other for switching P tap voltages on the primary side, and the continuous P tap positions corresponding to the switching of the tap voltage are changed, and therefore, the tap voltage on the secondary side can be switched equivalently.SELECTED DRAWING: Figure 7 【課題】一次側のＰ通り（Ｐは３以上の整数）の電圧及び二次側のＳ通り（Ｓは２以上の整数）の電圧に対し、一次側に設けたタップが内包するＰ×Ｓより少ない数のタップ位置によって対応することが可能なタップ付変圧器を提供する。【解決手段】タップ付変圧器(40)は、一次巻線(411,421,431)の途中に複数のタップを含む中間タップ(41cと41d,42cと42d,43cと43d)を備え、一次側のタップ電圧が切り換え可能である。複数のタップは、Ｊ個（Ｊは５以上の整数）のタップ位置(t1〜t9)を内包し、該Ｊ個のタップ位置のうち、特定の連続するＰ個（Ｐは３以上、Ｊ−２以下の整数）のタップ位置(t1からt5)を、一次側のＰ通りのタップ電圧の切り換え用に対応付けてあり、該タップ電圧の切り換え用に対応付ける連続するＰ個のタップ位置を変更することにより、二次側のタップ電圧が等価的に切り換え可能である。【選択図】図７