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Protection Purpose Precision Current Transformers

Application General Features
• Accuracy power monitoring • Meeting International Standard IEC 61869-2
• High-end digital protection relay • High precision & stability
• Power transducer • High saturation induction
• High-end UPS periphery relay • Excellent linearity
• High-end industrial power sensor • Excellent thermal properties
• Inverter controlling • High potential voltage of 2.5kV-4.0kV/min
• Precision motor protection relay • RoHS compliant

• EV Charging Plug & Cable

Ⅰ. Standard Model : Accuracy Class 3.0

Model & Specification
f=50Hz, Rb=1 n, PF=1.0, unit : percent / minute
Rnv Pnv
Current DCR Im Im Im Phase
Model No Rb=O, Rb=O,
Ratio ±6% Rb=1Q Rb=20Q Rb=500Q Shift at 1V
1-20A -20A
TC1V
TC1L 1000:1 74Ω 76A 60A 9A 1.5% 190' 106'
TC148V 2000:1 98Ω 225A 190A 38A 0.7% 75' 29'
TC148L
TC149V 1500:1 46Ω 370A 260A 31A 1.0% 50' 24'
TC149L
TC150V 2000:1 40Ω 870A 590A 69A 2.0% 85' 39'
TC150L

Definition of Terms
Im: Max ratedcurrent Rnv: Nominal variation of ratio error at the mentioned pimary current range Pnv: Nominal variation of phase
error at the mentioned primary current range Rb: Burden resistance PF: Power factor DCR: DC Resistance of secondary winding
Remark: The data of maximum current, ratio and phase error on 60Hz testing would be around 20% better than those of above 50Hz

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