Noise-reduction device for stationary induction apparatus

Details Noise-reduction device for stationary induction apparatus Noise-reduction device for stationary induction apparatus

1983-02-15

1985-04-30

Kozma, Thomas J.

Inductor devices

With vibration control

181202, 181208, 188379, H01F 1500

Patent

active

045147140

ABSTRACT:
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.

REFERENCES:
patent: 4425980 (1984-01-01), Miles
patent: 4442419 (1984-04-01), Kanoi et al.
"Transformer Noise Abatement Using Tuned Enclosure Panels", report of 7th IEEE/PES Transmission and Distribution Conference and Exposition, Apr. 1-6, 1979, pp. 184-191.

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