... as excitation, ratio, phase, polarity, secondary winding resistance-6.4 inch real color TFT, DSP, Linux OS -3000 groups of ... -Transient characteristics test and analysis of CT -Automatically conclude the ratings of CT -Measurement on CT’s parameters: knee point voltage / ... InformationCT120P, 1piece If you want to test both measure CT, protection CT, and PT, high accuracy model 220P is available.If ...