| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a secondary-side bus duct of a three-phase transformer which is compact and of low cost, where a magnetic leakage flux is suppressed even if formed from a normal steel stock. <P>SOLUTION: Four-phase conductors 1a, 1b, 1c, and 1d connected to a secondary coil of the three-phase transformer of open delta connection are provided side by side, which are supported by insulating support materials 3 and 4. The two-phase conductors 1a and 1d which are connected to an open terminal of the secondary coil and is electrified with phase current are disposed at both ends near side plates 2a and 2b on both sides of a box 2. On an inner side adjoining the two-phase conductors 1a and 1d, the conductors 1b and 1c of such phase as is electrified with a line current having almost 150°phase difference relative to the phase current electrified for oneself are disposed. <P>COPYRIGHT: (C)2003,JPO</p> |
