Open AccessDevelopment and application of a double-break vacuum on-load tap-changer
Author(s) -
Kai Zhou,
Jin Liu,
W. Luo
Publication year - 2022
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2246/1/012055
Subject(s) - tap changer , reliability (semiconductor) , electrical engineering , engineering , physics , voltage , power (physics) , quantum mechanics , transformer
—At present, the mainstream large-capacity vacuum on-load tap-changer generally only uses a single resistance transition and there is a risk of breaking inter-stage short-circuit current. In order to improve the operational reliability of the vacuum tap-changer, this paper innovatively developed a double-break vacuum on-load tap-changer using dual transition resistances, which avoids the problem of inconsistent loads between the main vacuum tube and the transition vacuum tube, and theoretically avoids the inter-stage short-circuit accident, and completed the development, type test and trial run of the tap changer.