Calibration of the Accuracy for All Fiber-optical Current Transducer
Chaoyang Zhang · Gaoya dianqi · 2012
The principle of the all fiber-optical current transducer(AFOCT) is introduced.According to IEC 60044-8:2002 standards,a calibration system is developed to calibrate the accuracy of AFOCT.Experimental results are as follows: At room temperature,the measurements of the ratio errors and the phase errors for 1% to 120% of the input rated current meet the requirements.The ratio errors and the phase errors for the input rated current are less than ±0.2% and ±10′,respectively,within-40～+80 ℃.The accuracy of prototype meets the accuracy requirement of 0.2S class.