Features of DC Current Immunity Core:
1. Adopted high permeability core,high accuracy excellent linearity performance.
2.Fully enclosed,with high function of current isolation and nice outline.
3. Flexible wires as primary.Can connect types of terminals.
4. Linear output with accurate current. Can realize for multi ratio output.
5. DC immunity.
6. Encapsulated by mold Injection of environmental plastic. Anti-erosion and excellent seal
Main Application of DC Current Immunity Core:
- DC Current immunity transformers in electronic energy meter /watt-hour meter;
- Metering transformer in electronic power system.
Description of DC Current Immunity Core:
1. Electrical Parameters
1. Ambient temperature: -40°C ~ +75°C.
2. Insulation resistance: ≥1000MΩ(DC500V).
3. Dielectric strength : 4000VAC 1mA 60S.
DC Current Immunity Core is widely used for DC resistent field, which guarantee cores will not be saturated when the original side passes a certain dc component. Currently, we have TWO Solutions for DC Immunity -- Co-Base Amorphous Single Core; Amorphous & Nanocrystalline Composite Core.
Following details of Co-base Amorphous Single Core for Energy Meter, details of Composite core, please click "read more"
- Made by single magnetic materials- Co-base Amorphous, with constant permeability (µ=1400-2000)
- Strong immunity for DC current, applicable current 1.5A - 200A
- High linearity, high accuracy class, applicable transformer accuracy range 0.5-1.0 Class
- Good temperature stability
- Core size saving by Volume & Weight
Standard cores dimensions, applicable CT accuracy, Maximal DC current immunity range:
1-What is the rate current and max current at primary ?
2-Core size and hole of CT size
3-The accuracy of the transformer .
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