| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem in that, in a case where coils for a stationary electric induction device are multi-layer cylindrical coils vertically asymmetrical, vertical significant electromagnetic force is applied when a short-circuit current flows in the coils, leading to deformation of the coils.SOLUTION: In an electric stationary induction device comprises: an iron core (1) in a body tank (3); coils (21, 22) wound around the iron core (1); and a cramp (12) sandwiching the iron core (1) between the upper and lower coils (21, 22), adjacent layers of the coils (21, 22) being such that winds are vertically opposite, and the end part of each coil having a projecting layer and a recessed layer, a coil holding member (10) is provided between the cramp (12) and the coils (21, 22).SELECTED DRAWING: Figure 5 |
