| 摘要 |
PURPOSE:To relieve an installation area of a device and to reduce a cost, by a method wherein functions of both a housing transformer and an on-load voltage regulator at loading time are performed by means of a single on-load voltage regulator with teriary winding. CONSTITUTION:A transformer device consists of mainly a main transformer 1 and an on-load voltage regulator 20 with tertiary winding. Primary terminals 20u-20w are placed at the primary winding of each phase of the on-load voltage regulator 20 with tertiary winding, and tertiary terminals 20a-20c and a neutral terminal 20n are placed at tertiary winding. An on-load tap switching device 13 is mounted at secondary winding, and a neutral terminal 200 is positioned in the proximity of a tap. The main transformer 1 and the on-load voltage regulator 20 with tertuary winding are connected together through a phase separation bus 15 at each phase, and are electrically coupled together through an under-oil coupling duct 17. |
