Transformer Core History: From Wrought Iron to Amorphous Alloys

1930s British hot-rolling mill workshop producing early hot-rolled silicon steel

Every transformer core alive today carries over 140 years of trial and error inside it. This article traces that history — from the first laminated wrought-iron core in 1884 to hot-rolled and grain-oriented silicon steel, HiB grades, laser-scribed domains, and today’s amorphous and nanocrystalline alloys — and shows how each material and structural breakthrough cut core losses, and why it still matters when you’re specifying a transformer.

Chengdu Xinjin Fangxin 10MW/h User-Side Energy Storage Project

Aerial view of the Chengdu Xinjin Fangxin 10MW/h user-side battery storage project with technician inspecting the battery container aisle

Zhongxin General has delivered Chengdu’s first 10MW/h user-side battery storage project, installed at a manufacturing site in the Xinjin Economic Development Zone. Running on a “two-charge, two-discharge” schedule, the system is already saving the client close to RMB 1 million a year — and it’s drawn site visits from two of the city’s leading power-industry associations.

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