| 摘要 |
<p>PROBLEM TO BE SOLVED: To shorten the phase-to-phase distances to enable miniaturization of an enlcosed power receiving/distribution equipment, such as a distribution board. SOLUTION: In an instrument transformer of a structure that cylindrical primary and secondary windings 12 and 13 arranged on a concentric circle are integrally molded with an insulating resin and at the same time, an iron core is pinchingly attached to the outer peripheral parts and center holes of the windings, the thickesses of the windings 12 and 13 are made thicker than the lengths of the windings 12 and 13 to form the windings 12 and 13 in a flat form and at the same time, two groups of cut cores 14 and 15 are pinchingly attached to both windings 12 and 13 in a 8 shape in cross section centering around the center holes, the outsides of the cut cores 14 and 15 are respectively clamped with bands 21 and 22 and 23 and 24 and the cut cores 14 and 15 are fixed on the windings 12 and 13.</p> |
