Page 14 - 태화트랜스

Protection Purpose Precision Current Transformers

Model & Specification
f=50Hz, Rb=1 n, PF=1.0, unit : percent / minute
Current DCR Im Im Im Rnv Pnv Phase
Model No
Ratio 士6% Rb=1Ω Rb=20Ω Rb=500Ω 1-20A, Rb=0 1-20A, Rb=0 Shift at 1V
TC140V/L 1000:1 34Ω 125A 82A 8A 1.2% 10' 88'
TC141V/L 1000:1 29Ω 250A 156A 14A 0.7% 60' 65'
TC142V/L 1000:1 19Ω 460A 230A 17A 2.2% 90' 34'
TC143V/L 4000:1 154Ω 940A 840A 210A 1.5% 86' 13'
f=50Hz, Rb=1 n, PF=1.0, unit : percent / minute
Current DCR Im Im Im Rnv Pnv Phase
Model No
Ratio 士6% Rb=1Ω Rb=20Ω Rb=500Ω 1-20A, Rb=0 1-20A, Rb=0 Shift at 1V
TC172V/L 2500:1 129Ω 210A 170A 45A 1.0% 55' 62'
TC173V/L 2500:1 187Ω 260A 240A 70A 1.2% 62' 28'
TC174V/L 2500:1 51Ω 〉1000A 790A 100A 1.3% 100' 13'
TC175V/L 2000:1 26Ω 〉1000A 790A 67A 1.4% 95' 11'
Definition of Terms
Im : Max rated current Rnv : Nominal variation of ratio error at the mentioned primary current range Pnv : Nominal variation of phase
error at the mentioned primary current range Rb : Burden resistance PF : Power factor OCR : 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
f=50Hz, Rb=1 n, PF=1.0, unit : percent / minute
lmax
Model No Current Ratio DCR(土6%) Tolerance
Rb=1Q Rb=20Q Rb=500Q
TC1PV 1000:1 62Ω 54A 42A 5A
TC2V/L 1000:1 41Ω 60A 44A 5A
TC3L 1000:1 33Ω 土3% 142A 95A 9A
TC4V/L / 1000:1 19Ω 460A 230A 17A
TC5V 1000:1 12Ω 660A 260A 16A

Drawing

PCB Mountable Type Lead Wire Type

TC175V & TC5V

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