| 摘要 |
<p>PROBLEM TO BE SOLVED: To miniaturize a container by effectively using a dead space. SOLUTION: In a transformer for a three-phase instrument, primary coils and secondary coils are wound on the legs of the respective iron cores formed of one pair of a yoke; and a leg to constitute a simple-phase transformer main body for an instrument and three pieces of transformer main bodies for an instrument are arranged within a container, so that one side of each york part is positioned on the side of the central axis of the container at a pitch of 120 degrees radially to the central axis of the cylindrical container. Each yoke on the side of the central axis of the container is made to protrude to the side of the center of the container, so that the sectional area of each yoke becomes equal to the sectional yoke area of each yoke on the opposite side to the side of the central axis of the container.</p> |
