| 摘要 |
<p>PROBLEM TO BE SOLVED: To suppress vibration and noise generated from both of an iron core and a coil without increasing the physical status of a transformer.SOLUTION: The transformer includes a conservator 5 for absorbing a volumetric change of insulation oil 9 located on a tank 1 housing an iron core 2 and a coil 3 together with insulation oil 9 and further a diaphragm 10 resonating at a frequency of excitation sound or excitation vibration generated by the iron core 2 and the coil 3, the diaphragm 10 being located in a region filled with the insulation oil 9 between the iron core 2, the coil 3 and the conservator 5.</p> |
