Amorphous oil-immersed transformer core

Amorphous Oil-immersed Transformer Core

An amorphous oil-immersed transformer core is a highly energy-efficient type of transformer core, representing a significant advancement over traditional silicon steel cores. Its key innovation lies in the use of an amorphous metal alloy, typically composed of iron, boron, silicon, and phosphorus, as the core material.

This alloy is rapidly cooled during manufacturing, preventing the atoms from forming a rigid crystalline structure. Instead, they are arranged in a random, or "amorphous," pattern. This disordered structure results in extremely low hysteresis loss, which is the energy lost as heat when the magnetic field in the core reverses direction.

When this amorphous metal core is assembled and integrated into a conventional oil-immersed transformer tank, the resulting unit offers exceptional performance benefits:

Ultra-High Efficiency: The primary advantage is a dramatic reduction in core (or no-load) losses—typically 70-80% lower than those of transformers with traditional grain-oriented silicon steel cores.

Energy Savings and Sustainability: By significantly cutting energy waste during operation, these transformers substantially reduce electricity costs and carbon emissions over their lifespan, making them a cornerstone of green grid technology.

Enhanced Reliability: The core is immersed in insulating oil, which provides excellent cooling and electrical insulation, ensuring long-term operational stability and durability.