current transformer
current transformer for energy meter:
1.Ring type CT
2.10(100)A/10mA 12.5Ohm
3.CE, ISO900
PQ Current transformer
Basic Parameter | Primary current(A) | Secondary current(mA) | Resistance Rb(Ω) | Maximum currant(A) | Class | Remark | ||||||||
10 | 10 | 12.5 | 100 | 0.1 |
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Current error and phase error limited | Class | Current error±(%) | Phase error( )
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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 | |||||
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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 | |||||||||||||
current transformer for energy meter, ring type current transformer, current transformer manufacture:
