| 摘要 |
PURPOSE:To improve the reliability of insulation by connecting in parallel two or more unit transformers having two or more windings respectively, and by connecting in parallel two leads drawn out of the windings of the first unit transformer while passing them across the windings of the second unit transformer. CONSTITUTION:Two unit transformers A and B are installed in parallel and connected by lead ducts 5a and 5b provided on the opposite side of each tank 3. The transformers A and B are single-phase two-winding transformers having primary and secondary windings respectively. Said windings are wound on the main legs of a single-phase four-leg core 1 having two main legs and side lags, with the secondary winding being arranged on the outside. Leads 9B and 10B on the low-voltage and high-voltage sides, drawn out of two windings 2, 2 of the transformer B, pass the lead ducts 5a and 5b, further pass across betweeh two windings 2, 2 inside the transformer A, and are connected to the terminals 11a and 11b of a bushing on the side of the transformer A. Lead 9A and 10A on the low-voltage and high-voltage sides, drawn out of two windings of the transformer A are also connected to the terminals 11a and 11b of the bushing. |
