| 摘要 |
<p>PURPOSE:To form a single-phase three-winding transformer in a compact type a method wherein a primary winding, a secondary winding and a tertiarily auxiliary winding are wound on the leg on one side of a core, and a tertiarily main winding and a tertiarily auxiliary winding wound on another leg are connected in series. CONSTITUTION:A tertiarily auxiliary winding 10, a secondary winding 5 and a primary winding 6 are wound concentrically on the leg 9a on one side of a core 9 consisting of two legs, and a tertiarily main winding 11 is wound to be arranged on the other leg 9b. The tertiarily main winding 11 and the tertiarily auxiliary winding 10 are connected in series as to make the directions of the induced voltages thereof to be in the additional direction, and thus a tertiary winding is constructed. Accordingly, because impedance of the tertiary winding can be enhanced, and short-circuit capacity of the tertiary winding can be made as not to exceed capacity of a circuit-breaker without using a current-limiting reactor, size and weight of a transformer can be made compactly, and reduction of the floor area can be attained.</p> |
