DEVICE FOR REDUCING VIBRATION AND NOISE OF CASE OF CONTROLLED REACTOR Russian patent published in 2009 - IPC H01F27/33 

FIELD: electricity.

SUBSTANCE: present invention relates to electrical engineering, to means of passive vibration protection and can be used at substations to reduce vibration and noise of the transformer-reactor equipment. Device for reducing vibration and noise of the case consists of an assembly of linearly set multi-frequency oscillators, made in the form of shafts and masses. Settings of the natural resonance frequency of each of them is carried out by the movement of the masses relative to the shaft at a specified length till it corresponds to the forced resonance frequency of the equipment. Oscillators are rigidly fixed on the walls of the case of the equipment at an equal spaced from the ribs. Natural frequencies of their oscillation are selected with multiple frequency alignments of the equipment. For rigid mounting of the device with the possibility of removing it without damaging the walls of the case permanent magnets are put.

EFFECT: increasing reliability and life service of the equipment.

3 cl, 2 dwg