| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a new composition method and structure of a winding type frame which reduces the number of winding cores used and a winding to be suitable for a winding core is wound in a three-phase transformer using a cylindrical winding core. <P>SOLUTION: The transformer winding 2 for one phase is suitable for two winding cores 1, and in order, transformer windings 2 of another phases are suitable for two different winding cores to compose a three-phase transformer on which transformer windings for two-phases are wound on each one of three winding cores, respectively. Consequently, the winding cores necessary for six pieces on three pairs up to the present can be reduced to three, an electromagnetic steel material can be reduced by about 13%. The three-phase transformer, in which a three-leg shape winding type frame to hold the windings is formed, includes a plurality of parting plates more than one on which recessed channels are formed in the direction to wind the windings of winding frames and which are fixed to the winding frame bottom along the center portion of the channel. Thereby, a primary and secondary windings can be easily mound. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
