Zero sequence current transformer characteristics:

1. High sensitivity: Amorphous alloys have high permeability, the sensitivity coefficient, a low coercivity, magnetization curve of the linear segment wide.

2. A good balance of properties: Effective prevention of malfunction, widely used in industrial, household leakage protector.

3. The overload characteristics of a good: When the circuit produces a short circuit or surge current, high current flows through the transformer primary coil, core severe saturation, amorphous core remanence is small, the impact of current after the resumption of the parameters of transformer ever, strong resistance to overload.