These new CT/PT testing equipments are based on low frequency and variable frequency methods which lead to the great reduction in weight and high knee point test range. With one button click, all test items of the current transformer test set, such as excitation, winding resistance, polarity, phase error, ratio, etc, can be performed automatically.
PCT200i is specially designed for current transformer characteristic test. Compared with PCT200Li, PCT200i owns more test items and higher technical parameters. This CT analyzer can finish the measurement class CT and TYP class CT. The additional functions include ratio and angle differential tests (the measurement points in the GB standard), FS and inductance, steady-state parameters, peak error and transient parameters, etc.
PCT200Ai is the CT/PT test set can finish various tests of different transformers. Compared with PCT200i, its accuracy is higher. This CT analyzer can test the 0.2s class CT. Only this CT analyzer - the high-accuracy transformer tester has passed the tests held by Wuhan High Voltage Research Institute. The max permissible error of ratio measurement is ±0.05% and max phase measurement is ±2min.