一、前言如何设计一个体积小,重量轻的短时、间歇工作的大功率高压变压器?这是工程实践中迂到的新问题。按常规的变压器设计方法及提供的设计参数,对于自然冷却、无线电用三相变压器(E形铁心),当功率为6千瓦时,电流密度只选为1.3安/毫米~2,这个参数适用于持续运行条件,如直接把它套到短时、间歇工作条件,显然是不合理的,这不仅造成浪费,而且在体积,重量等方面远远不能满足工程的需要。 I. Introduction How to design a small, light weight short-term, intermittent work of high-power high-voltage transformers? This is a new problem in engineering practice circuitous. According to the conventional transformer design method and provided design parameters, for natural cooling, radio three-phase transformer (E-core), when the power is 6 kW, the current density is only selected as 1.3A / mm ~ 2, this parameter applies to Continuous operating conditions, such as directly set it to short-term, intermittent working conditions, is clearly unreasonable, which not only resulted in waste, but also in terms of size, weight, etc. far can not meet the needs of the project.