Voltage sampling cabinet SHON

SHON voltage sampling cabinet is designed to generate signals equivalent to phase voltage of transmission lines of power lines of 35-750 kV classes with earthed neutral for synchronisation, measurement, protection devices of power lines.
The main functions of SHON:
- passing of industrial frequency current from the CS and formation of normalised currents and voltages at specified loads.
- Providing connection of feeder filters (FF) to the same coupling capacitor (CC) with minimum distortion of FF characteristics.
The electrical scheme of the SHON provides for the presence of 2 voltage selection transformers (VST): one - to supply synchronisation devices; the second - to supply synchronism and voltage control relays.