DC current transformer DCT-5

Basic Parameter

Primary current (A)

Secondary current (mA)

Resistance

Rb (Ω)

Maximum currant (A)

Class

Remark

5

2.5

10

60

0.1

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

0.05

0.1

0.05

4

2

2

2

2

2

2

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)

Half-sinusoid Test

Energy metering error is less than 3 percent

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