Transformer
Transformers are precision sensing devices in power metering and protection systems, divided into two categories: current (CT) and voltage (PT). CT adopts microcrystalline alloy iron core and Roche coil technology, with an accuracy of 0.2S level, dynamic range covering 1A -5000A, and phase error<5 '. PT uses the principle of capacitive or resistive voltage division to achieve a proportional conversion of 110kV/100V, with a temperature drift coefficient of less than 50ppm/℃.