Technical Knowledge

Toroidal cores offer higher efficiency, smaller size, lower EMI, quieter operation and better heat dissipation than traditional EI cores, ideal for high‑end electronics, medical and audio devices.

Under the global trend of energy transition and energy saving, the efficiency of power equipment has become a core concern in the fields of power grids, new energy sources and data centres. Traditional silicon steel transformer core has high no-load loss, heat generation and other problems, amorphous metal transformer core with ultra-low loss, high efficiency and energy saving advantages, become a new generation of power distribution and special transformer core components.

In the field of electric power, new energy, rail transportation and industrial automation, transformer core saturation is hidden and extremely harmful. Light equipment noise, harmonic exceeds the standard, efficiency decline, heavy winding burned, insulation breakdown, and even cause power grid outage. Most of the operation and maintenance designers only focus on the surface faults, easy to ignore the frequency, DC bias, core material and other core triggers. This paper combines electromagnetic principles and engineering practice to analyze the core saturation mechanism, causes and hazards, and gives a full-dimensional prevention and control program to avoid failures from the source and extend the service life of the equipment.