| 摘要 |
PROBLEM TO BE SOLVED: To reduce displacement magnitude of an upper part of a transformer during earth quakes while suppressing vibration noises caused by magnetostrictive vibrations of an iron core.SOLUTION: A coil support within an iron core window is made of natural rubber and silicone rubber, and the natural rubber is arranged on the side of an iron core to directly suppress magnetostrictive vibrations of the iron core. In addition, the natural rubber is inserted between the iron core and a lower metal fitting. Furthermore, a rubber isolator arranged between a transformer body and a base is decommissioned. |
