| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide the primary winding of a transformer for a meter, which can prevent voltage between layers from becoming high and interlayer insulating layer from becoming thick on the inner side part of a winding. SOLUTION: Groups W1 to Wn of winding layers are wound on the outer periphery of a spool B in a state that insulating layers L1 to Ln-1 are made to interpose between the winding layers, and the sectional form of the half of the whole winding is formed into a trapezoid shape. The groups of the winding layers are divided into the first groups W1 to Wm of the winding layers, which are positioned on the side close to the spool, and the second groups Wm+1 to Wn of the winding layers, which are positioned on the outsides of the first groups of the winding layers. The first groups W1 to Wm of the winding layers are formed by winding two parallel conductors C1 and C2 and the second groups Wm+1 to Wn of the winding layers are formed by winding one conductor C.</p> |
