Title :
Establishment of 40,000 A Rogowski coil calibration system and its uncertainty analysis
Author :
Kim, Yoon Hyoung ; Jung, Jae Kap ; Kang, Jeon Hong ; Lee, Sang Hwa ; Han, Sang Ok
Author_Institution :
Chungnam Nat. Univ., Daejeon, South Korea
Abstract :
System for calibrating Rogowski coil(RC) up to primary current of 40,000 A have been established by employing standard current transformer(CT), CT comparator and voltage to current converter(VCC). The expanded uncertainty is 0.021 % ~ 0.230 % for ratio error and 0.3 min ~ 1.9 min for phase displacement in the primary current ranges of 10 ~ 40,000 A.
Keywords :
calibration; convertors; current transformers; Rogowski coil calibration system; current 10 A to 40000 A; current transformer comparator; standard current transformer; time 0.3 min to 1.9 min; uncertainty analysis; voltage to current converter; Calibration; Coils; Electromagnetic measurements; Uncertainty;
Conference_Titel :
Precision Electromagnetic Measurements (CPEM), 2010 Conference on
Conference_Location :
Daejeon
Print_ISBN :
978-1-4244-6795-2
DOI :
10.1109/CPEM.2010.5544155
