1K101 Fesib Amorphous Cores for Superior Transformer Performance

 

Amorphous cores have significantly lower losses and higher efficiency compared to traditional silicon steel (CRGO) cores, making them ideal for energy savings. However, amorphous cores have a lower saturation flux density and a higher initial cost, requiring a larger size for the same power handling and making them more brittle. In comparison to nanocrystalline cores, amorphous cores generally have higher saturation flux density and higher power loss, while nanocrystalline cores have higher permeability and lower power loss, making them better for high-power, high-frequency applications.

 

 

Amorphous cores vs. Silicon Steel (CRGO) cores

 

Energy Loss: Amorphous cores have 70-80% lower no-load losses than CRGO cores.

 

Efficiency: Lower losses lead to greater energy efficiency and lower operating costs.

 

Saturation Flux Density: Silicon steel has a higher saturation flux density, making it suitable for high power applications where amorphous cores would be too large.

 

Cost: Amorphous cores have a higher initial cost but can have a lower total ownership cost due to energy savings.

 

Physical Properties: Amorphous cores are more brittle and require more careful handling during manufacturing.

 

 

Amorphous cores vs. Nanocrystalline cores

 

Atomic Structure: Amorphous cores are non-crystalline, while nanocrystalline cores have a dual-phase structure with nanometer-sized crystals in an amorphous matrix.

 

Permeability: Nanocrystalline cores have higher permeability.

 

Power Loss: Nanocrystalline cores have lower power loss.

 

Saturation Flux Density: Amorphous cores have a higher saturation flux density.

 

Application: Nanocrystalline cores are better for high-power, high-frequency applications, while amorphous cores are more focused on energy efficiency.

Amorphous core specification

Magnetic core size(mm)			Protective box size(mm)			Effective cross-sectional area Ae(mm2)		Magnetic path length Ie(mm)		Maximum DC overcurrent class (A)
id	od	ht	ID	OD	HT
14	19	6.5	12	22	8	11.86		51.81		20
14	20	10	12	22.3	11.4	29.68		52.29		40
16	21	10	15	24	12.3	24.85		57.41		60
16	23	8	15	24	9.7	20.44		61.23		60
16	23	10	15	24	12.3	34.62		59.92		60
17	22	10	15.3	24.4	12.3	24.86		60.59		60
17	21	8	15.3	24	9.7	25.56		60.67		60
17	23	8	15.3	24.4	9.7	26.89		61.34		60
18	23	10	16.4	24.4	12.3	29.78		60.38		70
18	24	9	16.4	25	11.2	34.78		60.89		70
18	25	10	16.4	25.9	12.3	37.97		64.56		70
19	24	9	17.3	25	11.2	40.39		65.32		80
19	25	10	17.3	26	12.3	39.42		62.31		80
19	26	10	17.3	27.3	12.3	48.32		69.56		80
20	25	10	18.5	26.3	12.3	39.29		70.32		90
20	28	10	18.5	29	12.3	45.76		73.88		90
20	32	10	18.5	32.3	12.3	58.91		78.75		90
21	29	10	18.2	31.3	12.3	39.65		77.19		100
21	26	8	18.3	27.4	9.7	46.54		78.32		100
21	28	10	18.3	30	12.3	50.39		77.45		100
22	28	10	20.5	30	12.3	49.32		79.89		120
22	32	10	20.5	33.4	12.3	43.58		73.43		120
23	32	10	21.3	33.4	12.3	44.56		74.56		120