- Contact Person : Mr. liu jacky
- Company Name : Shanghai Puqi Electronic Co., Ltd.
- Tel : 86-21-36411658
- Fax : 86-21-36411659
- Address : Shanghai,SHANGHAI,ROOM 1006 NO.1980,BAOSHAN ZONE ,SHANGHAI, CHINA
- Country/Region : China
- Zip : 200439
bus type current transformer
current transformer for kwh meter Basic Parameter | Primary current(A) | Secondary current(mA) | Resistance Rb(Ω) | Maximum currant(A) | Class | Remark | ||||||||
5 | 5 | 20 | 60 | 0.1 | Direct | |||||||||
5 | 2.5 | 20 | 60 | 0.1 | Anti-direct | |||||||||
10 | 5 | 20 | 120 | 0.1 | Direct | |||||||||
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 | |||||
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 | The energy measurement error is less than 3% | |||||||||||||
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 | |||||||||||||
Reference Size (mm) |
| A | B | C | D | E | F | G | H | I |
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1 | 9.2 | φ6.2 | 20 | 30 | 17 | 47 | 2.2 | 30 | 11 |
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bus type current transformer
