| 摘要 |
<p>In electrolytic colouring of aluminium or aluminium alloy parts, the alternating single-phase feed current is derived from a three-phase mains supply which feeds a three-single phase transformer so that the positive and negative half-cycles are conveyed at the same angle and both are variable. - A first phase cycle is followed by the second consecutive with the third phase, balancing the load distribution between phases.</p> |
