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Current Transformer
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产品内容:

Product Description
1. Basic Specifications (parameters corresponding in sequence)
- Rated primary current (A): 5/10/10/20/20
- Rated secondary current (mA): 5/5/10/10/20
- Rated burden (Ω): 20/20/10/10/5
- Maximum current (A): 30/60/60/80/100
- Accuracy class: 0.2-0.1

2. Limits of Current Error (Ratio Error) and Phase Error
2.1 At accuracy class 0.1
- Current error +/- % (at current): 0.2(0.01 In); 0.1(≥0.05 In)
- Phase error ’(at current): 15(0.01In); 8(0.05In); 5(0.2In); 5(1In); 5(2In); 5(3In); 5(Imax)

2.2 At accuracy class 0.2
- Current error +/- % (at current): 0.4(0.01 In); 0.2(≥0.05 In)
- Phase error ’(at current): 30(0.01In); 15(0.05In); 10(0.2In); 10(1In); 10(2In); 10(3In); 10(Imax)

*Note: Phase error at working current i is defined as Δδi = δi - δe, where, δi is the phase difference at current i, and δe is the average value of maximum phase difference δmax and minimum phase difference δmin, between current 0.2In and Imax.

3. Working Environment:
- Limit ambient temperature: -40oC - +70oC
- Relative humidity: ≤98% (25oC)
- Altitude: ≤3000m

4. Main Electric Properties:
- Withstand voltage between primary winding and secondary winding: ≥3kV
- Insulation resistance: ≥1GΩ

5. Reference dimensions (mm):
5.1 A=20; B=4.5; C=15.5; D=32.5; E=30; F=7; G=φ4.5; H=32.5; I=11; J=2.8
5.2 A=20; B=4.5; C=9; D=32.5; E=30; F=7; G=φ4.5; H=32.5; I=11; J=2.8
5.3 A=20; B=6.5; C=8.5; D=32.5; E=30; F=9; G=φ6.2; H=32.5; I=11; J=2.5

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