| 摘要 |
PURPOSE:To effectively reduce vibrations by a method wherein when an iron core of the electrical apparatus such as a transformer or the like is received in a tank in which reinforcing stays are fitted on the reverse side of a bottom plate at equal intervals, a core base to be attached on the bottom surface of an iron core and an anti- vibration member laid under the base are located at an intermediate position between the stays. CONSTITUTION:The reinforcing stays are fixed by welding at equal intervals on the outer surfaces of a side plate 2 and bottom plate 3 of the tank in which the electrical apparatus 8 such as a transformer to reinforce the tank 1. Then, the electrical apparatus comprising the iron core 6 and windings 7 is housed in the tank 1, which is filled with insulating oil 11 and on the top provided with a ceiling plate 4 having a bushing 12. In this construction, the core base 8 and the anti-vibration material 10 laid under the base are fitted on the bottom surface of the iron core, and the anti- vibration member 10 is attached to bottom plate 3. The position where the anti- vibration member 10 is located comes to the intermediate point between the stays 5. In such a manner, an oscillation level of the bottom plate 3 is not increased even when the iron core 6 resonates and accordingly, noises are decreased. |
