110 kV 油浸式电力变压器噪声抑制措施研究

摘要:

居民区和商业区附近 110 kV 油浸式电力变压器高分贝噪声污染已成为影响人们生活质量的一个突出问题。 为此，在深入分析变压器本体噪声与非本体噪声产生及辐射机理的基础上，提出了一种融合铁心优化、绕组预紧力优 化及箱壁增设隔音与吸音材料的 110 kV 油浸式电力变压器噪声综合控制与抑制方法。铁心优化与绕组预紧力优化 从源头上降低变压器噪声产生水平，箱壁增设隔音与吸音材料阻隔变压器噪声辐射。搭建的 110 kV 大容量油浸式电 力变压器噪声控制与抑制实验系统验证了该方法的正确性与可行性。

Abstract:

The high － decibel noise pollution from 110 kV oil － immersed power transformers nearby residential areas and business districts has become a prominent issue for people's life quality． After analyzing the transformer body noise and non － body noise and its radiation mechanism，a new comprehensive control and suppression method for the noise of 110 kV oil － immersed power transformers is proposed by compromising core optimization and winding pre － tightening force optimization and adding sound insulation and absorption materials on the wall of boxes． Core optimization and winding pre － tightening force optimization can reduce the level of transformer noise from the source，and Adding the sound insulation and absorption materials on the wall of boxes can obstruct transformer noise radiation． The established noise control and suppression model for 110 kV high － capacity oil － immersed power transformers verifies the effectiveness and feasibility of the proposed method．