current transformer

Basic Parameter

Primary current(A)

Secondary current(mA)

Resistance

Rb(Ω)

Maximum current(A)

Class

Remark

5

2

20

40

0.1

1:2500 

Current error and phase error limited

Class

Current error± (%)

 Phase error( )

0.01In

≥0.05In

0.01In

0.05In

0.2In

1In

2In

3In

Imax

0.1

0.2

0.1

15

8

5

5

5

5

5

Note,between the current 0.2In~Imax,taking the average δe between the maximum and minimum phase error.

 δi=δi-δe.( δI, phase error,δI, phase displacement when the working current at i time,δe,average phase displacement)

Working Atmosphere

Limiting ambient temperature -40°C~+70°C,Relative humidity (RH)  ≤98(25°C),Altitude  ≤3000m

Main Electric performance

The withstand voltage between the primary and secondary windings is no less than 3kV and insulation resistance is no less than 1GΩ