The invention relates to a novel electromagnetic type voltage mutual inductor iron core and a construction method thereof. Including bar steel, which is characterized in that: composed of U shaped silicon steel sheet and strip steel sheet stacking, U shaped silicon steel sheet at both ends of a bar, sheet closed U shaped silicon steel sheet opening, a composition of core layer, the two layer is the same stack, stack between two adjacent U shaped silicon steel sheet for each other opposite. The width of the strip silicon steel is widened from the outermost layer at both sides. The U shaped silicon steel sheet according to each stack two overlapping, each stack of two pieces of U shaped steel sheet, two adjacent stacked between U shaped silicon steel sheet opposite to each other, the core is put into the U shaped silicon steel sheet, strip steel sheet in the gap of U shaped silicon steel sheet stacked silicon steel strip. Each stack is the same as that of the adjacent two layers of silicon steel sheet strip between the opposite to each other. The invention has the advantages of high efficiency of construction, less distortion of the magnetic circuit, and greatly improved performance of the electromagnetic voltage transformer.
【技术实现步骤摘要】
本专利技术涉及一种互感器铁心,特别是一种新型的电磁式电压互感器铁心及 其搭建方法。
技术介绍
目前一般的电压互感器的铁心采用的叠积式铁心是用四条型硅钢片首尾对 接围成一个矩形层,每层为一叠,相邻的两叠围绕的方向相反,然后依此往上 叠积,搭建一个电磁式电压互感器铁心需要一千多片硅钢片, 一个熟练工人需 要用三个小时的时间进行搭建,由于所用硅钢片较多,时间较长,很容易搭错, 而一旦有错就必须拆掉重新搭建,在组装器身时还要将搭好的铁心其中一面拆 掉,等一、二次绕组及屏蔽板等在铁心柱上套好后再将拆下的那部分按照顺序 重新搭建,而重新搭建的难度更大,更容易出现错误,如此反复工作效率低, 还对硅钢片的平面造成损伤,增加的气隙会使它附近的磁通分布产生畸变,从 而使电压互感器空载电流增加,空载误差加大,因此如何专利技术一种新型的铁心 是一个亟待解决的问题。
技术实现思路
本专利技术的目的是解决现有技术中利用四条型硅钢片首尾对接进行叠积搭建 电压互感器的铁心所存在的上述问题,提供一种新型的电磁式电压互感器铁心 及其搭建方法。本专利技术设计一种新型的电磁式电压互感器铁心,包括条形硅 ...
【技术保护点】
一种新型的电磁式电压互感器铁心,包括条形硅钢片,其特征在于:由U字形硅钢片与条形硅钢片堆叠构成,U字形硅钢片的两端一长一短,条形硅钢片封闭U字形硅钢片的开口,构成铁心的一层,相同的两层为一叠,相邻两叠之间的U字形硅钢片互为反面。
【技术特征摘要】
【专利技术属性】
技术研发人员:郑豪,
申请(专利权)人:上海吴淞电气实业有限公司,
类型:发明
国别省市:31[中国|上海]
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