Nanocrystalline Core for Precision Current Transformer

SUNBOW' R&D and engineering department has rich experience in designing cores and components for the current measurement industry. SUNBOW always focused on studying and improving our own soft magnetic material and finally developed SWFNA-nanocrystalline (iron-based) alloy as the adequate solution for current transformer cores.

FEATURE

> High permeability

> Low Cost and Low Core Loss

> High Saturation Flux Density

> High Linearity, Low Temperature Dependence

BENEFIT

> Low Phase Error

> Low Amplitude Error

> Large Current Range and Small Dimension

> Constancy of Phase and Amplitude Error

HIGH-LIGHT

>> High Saturation Flux Density <<

smaller dimension and less weight than permalloy core

>> Low Core Loss <<

core loss lower than permalloy core

>> Linear and Low Temperature Dependence <<

working more stable and longer in wider

temperature range of -55~130℃

>> Low Cost & High Effect <<

cheaper and more effective than permalloy core

PERMEABILITY/SATURATION/LINEARITY

A typical hysteresis loop of nanocrystalline and permalloy indicates that:

SWFNA cores has much higher linearity of permeability in the almost whole loop;

SWFNA cores also keeps higher permeability (μ=20,000) than permalloy;

SWFNA cores' saturation (1.23T) is impressively higher than permalloy's (0.75T).

All above plus advantage of lower cost than permalloy makes SWFNA cores become excellent option for purpose of current transformer.

Fig.3 Typical hysteresis loop of SWFNA and permalloy

Definition: T=Toroid shape; HP=High Precision; HV=High Voltage;CT= Current Transformer

*Customization: other dimensions are available to be customized.

Definition: T=Toroid shape; ZS=Zero-Sequence; CT= Current Transformer

*Customization: other dimensions are available to be customized.

Sunbow supplies a wide variety of magnetic cores made of amorphous ribbons and nanocrystalline ribbons.

Nanocrystalline Cores:

Cores for Current Transformers

Cores for Leakage Circuit Breakers

Cores for Switched Mode Power Supply

Nanocrystalline C-Cores

Nanocrystalline Circular Cut Cores

Nanocrystalline Common Mode Choke Cores

Precision Current Transformer Cores

Amorphous Cores:

Amorphous stator cores for Electric Motors

Cores for High Power Transformers

Cores for Medium Frequency Transformers

PFC Choke Cores

Rectangular Cut Cores

Q: Are you trading company or manufacturer?

A: We are professional manufacturer specialized in the design,development and production of new-type amorphous,nanocrystalline,silicon steel sheets and other magnetic materials and components.

Q: What's your production capacity ?

A: The annual production capacity of amorphous&nanocrystalline ribbon is 600 tons;

The annual production capacity of power electronic core is 35 million;

C-type iron core annual production capacity of 240 tons;

The annual production capacity of reactors is 50,000;

The annual production capacity of precision transformers is 40 million;

1. Tell us what you need,please call 021-63306968 Or send email to :sales@sunbowgroup.com

As every application has its own characteristics and requirements.
We provide customized services according to your application

Just tell us your design concept and basic parameters

2. Get solution & quote

We will work on the best solution and provide primarily specification& quote for your review.

3. Sample production and mass production

We will start mass production after customer confirmation and validation of samples.

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