【摘要】 变压器分接线长度的计算所涉及环节、因素较多，一般给一个估算长度并给一定的富余量，存在开关分接线长度偏差较大的情况，通过对开关分接线的加工过程、焊接过程、布置走线方式的跟踪研究，作者提出了一种大型有载变压器分接线长度的计算方法。确定可以采用定量的关键参数，总结出有载分接开关不同分接之间的引线长度差值关系；从而精准的计算出引线长度。更多还原

【Abstract】 The length calculation of transformer tapping lead involving multiple segments,affected by more factors. There is a problem that the large deviations in the length of tapping leads may occur as the tapping lead lengths are generally estimated and certain margin is taken into account. According to the follow-up studies about the production process, welding process and the tapping lead layout, a method of calculating the length of tapping lead for transformer on-load tap changer is proposed in this paper.The length of the tapping lead can be calculated accurately through the length difference relationship between different tapping of the on-load tap changer conclude from the quantified key parameters.更多还原