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Supreme Accuracy Current Transformers

Application General Features

• 0.1 / 0.2 Class 1A, 5A rating accuracy meters in • Compliant to IEC61869-2, IEC62053-22 & ANSI
HVCT & MVCT for power & sub-stations and C12.20
industrial & commercial meters
• Paramount linearity within 0.1% through whole
• Data logger in digital fault recorders range
• Energy measurement of HEMS,BEMS,FEMS • Nearly zero tolerance on temperature change
• Accuracy multi-harmonics measurements • Hi-potential : 4kV per min.
• Arc plasma current monitoring up to 100Khz • Optional to measure the multi-harmonics

• EV charging cable & station • RoHS & REACH compliant

Circuit Diagram

Imax.rms≒2πfBsAeN²sec/ (Rcu+RB)
Idcmax≒nBs.le/µ
Phase Error Ф（|）＝arctan(Rcu+RB)/2πfL
Amplitude Error F(I) ≒ -sino•(Rcu + RB)/2πfµ
Eo = K. lo . RL / n

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