I. Core functions and technical principles Transformer as the transmission of electrical energy “heart equipment”, through the principle of electromagnetic induction to realize the alternating current voltage rise and fall, to support the efficient and safe operation of the power grid. Its core indi

1. Core mission: to change the voltage of an alternating currentCore function: The primary function of a transformer is to raise or lower the voltage of an alternating current.Why need to change the voltage?Long-distance power transmission (voltage): power from the power plant (such as thermal power

一、重大行业展会与论坛上海国际变压器新工艺、新材料及生产装备展览会（2025.6.11-13）西门子能源分享变压器数字孪生平台实践7；海鸿电气展示立体卷铁心非晶合金变压器创新成果7；发布《数字化工厂建设研究报告》，推动行业“新质增效”转型7。聚焦方向：智能化改造、绿色低碳技术、非晶合金应用、数字化工厂建设等。亮点活动：烟台国际变压器设备与技术展览会（2025.6.3-5）集中展示变压器组件、绝缘材料及智能制造设备，覆盖硅钢、非晶合金等核心材料供应链8。⚡ 二、迎峰度夏重点工程投运江苏淮安500千伏上河变电站升级6月15日投运两台国产1000兆伏安主变压器，替换已运行26年的进口设备，新增供电

I. What is a transformer?Core function: through the principle of electromagnetic induction to change the alternating current voltage (step-up / step-down)Energy conversion: electrical energy → magnetic energy → electrical energy (conservation of energy, output power ≈ input power)Symbol: circuit dia

I. What is a dry-type transformer? Dry-type transformer (Dry-type Transformer) is a kind of power transformer relying on air or other gases (e.g. nitrogen) as the cooling and insulating medium, whose core and windings are not immersed in insulating oil but are insulated by solid insulating materials

First, the leading enterprises performance is bright, industry boom degree climbedChina Xidian 2025 first quarter financial report shows that the company's net profit reached 295 million yuan, up 42.1% year-on-year, non-net profit increased by as much as 54.1% year-on-year. This growth is mainly ben