Amorphous core transformers reduce the impact on the global environment. The transformers use an amorphous alloy in their iron core which improves electrical characteristics and significantly reduces energy costs and CO2 emissions.
The amorphous alloy is a non-crystal substance created by rapidly freezing liquids of high temperature. Because there is no rule of atomic arrangement, the energy loss (hysteresis loss) is small when the flux of magnetic induction passes the iron core. In addition, eddy current loss is decreased because the thickness is approximately 0.03 mm, which is about 1/10 compared with silicon steel. Therefore, the no load loss (eddy current loss and hysteresis loss) can be decreased to about 1/5 of silicon steel’s.
Higher electrical resistance, almost triple of Silicon steel,s [Silicon Steel:50μΩ-cm, Amorphous Alloy:130μΩ-cm ]
| Material | Saturation flux density (T) | Electrical resistance (μΩ - cm ) | Iron loss (W/kg) (＊1) | Thickness (mm) |
|---|---|---|---|---|
| Silicon steel(Crystalline) | 2.03 | 50 | 0.440 | 0.23 |
| Amorphous Alloy (Non-crystal line) | 1.56 | 130 | 0.070 | 0.025 |
(＊1) Estimated; 50Hz, flux density 1.3T
Please contact us at AMTinfo@hal.hitachi.com for more information about our Amorphous Core and Amorphous Core Transformers.
