04514714 is referenced by 9 patents and cites 4 patents.

A noise-reduction device for a stationary induction apparatus which device comprises a sound insulation panel attached to reinforcing channels provided at the periphery of a tank of the stationary induction apparatus so as to block noises emitted from the outer surface of the tank, a weighty body attached to the sound insulation panel for reducing vibrations of the sound insulation panel and a dynamic damper of which the natural frequency can be adjusted to be made equal to the vibration frequency of the weighty body so as to cancel the vibrations of the weighty body.

Title
Noise-reduction device for stationary induction apparatus
Application Number
6/466485
Publication Number
4514714
Application Date
February 15, 1983
Publication Date
April 30, 1985
Inventor
Yuzuru Kamata
Hitachi
JP
Yasuro Hori
Katsuta
JP
Minoru Kanoi
Ibaraki
JP
Agent
Antonelli Terry & Wands
Assignee
Hitachi
JP
IPC
H01F 15/00
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