On-load tap-changing transformer

Abstract

Abstract PURPOSE:To simplify the construction of a tap winding and to enable the miniaturization of a transformer by forming an integrated disk winding of coarse and dense tap windings winding a single strand for coarse tap winding and a single strand for dense tap winding placing in parallel. CONSTITUTION:A disk winding is made accumulating in the direction of axis plural with coils consisting of a disk coil wound from the outer side to the inner side and a disk coil wound from the inner side to the outer side placing a single strand (a) for making a coarse tap winding TW1 and a single strand (a') for making a dense tap winding TW2 in parallel. Taps A1, A2 are led out from the start and the end of the coarse tap winding TW1 for connecting to a transposition switch. The taps b1, b2, c1, c2, d1, d2, h1, h2, i1, i2 of the dense tap winding TW2 are each led out from each twin coil wound with the single strands (a), (a'). Integrally formed disk windings of a low voltage winding L, a high voltage winding H, the coarse tap winding TW1 and the dense tap winding TW2 are placed in this sequence from the side of an iron core C.

Inventors

• 👤 Kaoru Endo
• 👤 馨 遠藤
• 👤 Sadao Furukawa
• 👤 古川　貞夫

Bibliographic Details