Nanocrystalline core Nanocrystalline current transformer core

The better the magnetic permeability of the transformer core, the smaller the measurement error and the higher the accuracy. When low ampere-turns and small transformation ratios are required, cold-rolled silicon steel cannot achieve measurement accuracy, and permalloy iron cores are greatly limited in use due to low saturation magnetic induction and high cost. Nanocrystalline alloy transformer cores are widely used in electrical equipment such as precision current transformers, zero-sequence current transformers, PFC, medium and high frequency transformers due to their excellent magnetic properties such as high permeability and high saturation magnetic induction.


Product Detail

Product Tags

Application field

·Inverter reactor, transformer core
·Wide constant permeability inductor core, PFC inductor core
·Intermediate frequency transformer core/distribution
·Transformer core in medical X-ray, ultrasound, MRI.
·Transformer cores in electroplating, welding, induction heating machines.
·Inductors (chokes) for solar, wind, railway electricity.

Performance Characteristics

High saturation magnetic induction intensity and high magnetic permeability-high precision, precision, miniaturization, and high linearity of the transformer;

1.Good temperature stability - can work at -55~120C for a long time.1 High saturation induction - reduced core size
2 Rectangular form - easy to install coil
3 Low iron loss - low temperature rise
4 Good stability - can work in -20 -150 o C
5 Broadband - 20KHz to 80KHz
6 Power - 50w to 100kw.

NO.

Item

Unit

Reference value

1

(Bs)
Saturation magnetic flux density

T

1.2

2

(μi
Initial permeability

Gs/Oe

8.5×104

3

(μmax
Maximum permeability

Gs/Oe

40×104

4

(Tc)
Curie temperature

570

5

(ρ)
Density

g/ cm3

7.25

6

(δ )
Resistivity

μΩ·cm

130

7

(K)
Stacking Factor

-

>0.78

Craftsmanship

Nanocrystalline alloys are formed by adding a certain amount of glass forming agent to the molten metal, and rapidly quenching and casting using a narrow ceramic nozzle under high temperature melting conditions. Amorphous alloys have the similar characteristics of glass structure, which not only make them have excellent mechanical properties, physical properties and chemical properties, but more importantly, the new technology of producing amorphous alloys using this rapid quenching method is less than the cold-rolled silicon steel sheet process. 6 to 8 processes can save energy consumption by 60% to 80%, which is an energy-saving, time-saving and efficient metallurgical method. Moreover, the amorphous alloy has low coercivity and high magnetic permeability, and its core loss is significantly lower than that of oriented cold-rolled silicon steel sheet, and its no-load loss can be reduced by about 75%. Therefore, the use of amorphous alloys instead of silicon steel sheets to manufacture transformer cores is one of the main means to save energy and reduce consumption in today's power grid equipment.

Parameter Curve

Nanocrystalline core Nanocrystalline current transformer core
Nanocrystalline core Nanocrystalline current transformer core

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