The utility model relates to a noise reduction block amorphous alloy transformer, the cushion block is installed in the transformer, the transformer comprises an oil tank, an iron core installed in the fuel tank, the core of the bottom of the mounting seat installed in the fuel tank, the iron core is wound around the winding, and at the same time the transformer oil is filled in the oil tank, the tank bottom is installed on the base, one is connected with the oil tank is arranged on the upper end of the oil pillow, the two ends of the tank are installed inside the tank is connected with the radiator, the iron core is arranged at the lower end of the cushion block, at the same time on both sides of the lower end of the core is provided with a cushion block respectively. Install the extension along the long axis direction of the iron core gap pad embedded in the gap, and is located between the core and the mounting seat. The utility model has the advantages that: by adding a pad between the core and the mounting seat, and mounting seat pad using barrier core, reducing the installation seat caused by core vibration and vibration of the tank, which can reduce the noise transmission fundamentally.
【技术实现步骤摘要】
一种非晶合金油浸式变压器降噪用垫块
本技术涉及一种油浸式变压器,特别涉及一种非晶合金油浸式变压器降噪用垫块。
技术介绍
非晶合金变压器是二十世纪七十年代开发研制的一种节能型变压器,世界上最早研发非晶合金变压器的国家是美国,当时由美国通用电气(GE)公司承担了非晶合金变压器的研制项目。到上世纪八十年代末实现了商品化生产。由于使用了一种新的软磁材料——非晶合金,非晶合金变压器的性能超越了各类硅钢变压器。目前国内外电力用户受节能减排压力的影响,非晶合金变压器越来越多地被人们关注和使用。尽管非晶合金变压器有空载损耗非常低的优点,但是因其对应力的敏感性,非晶合金铁心无法用夹件固定,其由磁滞伸缩引起的噪声是不可避免的。非晶合金变压器的噪声扰民问题一直是阻碍非晶合金变压器的推广与应用首要因素。变压器噪声共有三个声源:一是铁心,二是绕组,三是冷却器,即空载、负载和冷却系统引起的噪声之和。现有电力变压器器具具体降噪方法主要有:1.降低变压器铁芯的磁通密度,在1.5T~1.7T范围内,每减少0.1T磁通密度,可产生2.5dB~3dB的降噪量;2.采用磁致伸缩小的硅钢片,降低磁致伸缩,减小噪声;3.硅钢片叠装时,夹紧铁芯,减少铁芯接缝处尖角烧曲的发生;4.调整铁芯窗口的大小,避免共振现象;5.优化绕组分布,最大程度的减小漏磁密度,减小绕组轴向力,降低铁芯夹件受到的冲击力,避免金属撞击噪声;6.加缓冲装置,在铁芯垫脚处放置防振胶垫,在磁屏蔽与箱壁之间加缓冲,将刚性连接转换为弹性连接,减少铁芯到邮箱的振动,避免共振现象发生;7.采用隔声技术,通过安装隔声壁阻止噪声的传播过程,从而降 ...
【技术保护点】
一种非晶合金油浸式变压器降噪用垫块,所述垫块安装在变压器上,该变压器包括一油箱,在油箱内安装有一铁芯,该铁芯的底端通过安装座安装在油箱内,所述铁芯上缠绕有绕组,且绕组的两端分别从油箱的上端伸出,其中一端为低压引线,该低压引线伸出油箱后与低压套管相连,另一端为高压引线,该高压引线伸出油箱后与高压套管相连,同时在油箱内填充有变压器油,所述油箱的底端安装在底座上,上端设置有一与油箱相连的油枕,所述油箱的两端安装有与油箱内部相连通的散热器,其特征在于:在铁芯的下端安装有垫块,同时在铁芯的下端的两侧分别具有一容垫块安装的沿着铁芯长轴方向延伸的缺口,所述垫块嵌入缺口内,并位于铁芯与安装座之间。
【技术特征摘要】
1.一种非晶合金油浸式变压器降噪用垫块,所述垫块安装在变压器上,该变压器包括一油箱,在油箱内安装有一铁芯,该铁芯的底端通过安装座安装在油箱内,所述铁芯上缠绕有绕组,且绕组的两端分别从油箱的上端伸出,其中一端为低压引线,该低压引线伸出油箱后与低压套管相连,另一端为高压引线,该高压引线伸出油箱后与高压套管相连,同时在油箱内填充有变压器油,所述油箱的底端安装在底座上,上端设置有一与油箱相连的油枕,所述油箱的两端安装有与油箱内部相连通的散热...
【专利技术属性】
技术研发人员:缪建军,
申请(专利权)人:南通世睿电力科技有限公司,
类型:新型
国别省市:江苏,32
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