Energy-saving operation mode: light load voltage reduces the excitation current, the motor current is divided into active component and reactive component (excitation component) for improving COS.
Energy saving mode: when the motor load is light, the soft starter in the choice of energy-saving function, the PF switch heat dial to Y bits, in the current feedback role, soft starter automatically reduce the motor voltage. The excitation component of the motor current is reduced. In order to improve the motor power factor (phi COS). (domestic soft starter does not have this function). This function cannot be realized in contactor bypass. The TPF switch provides two response times for energy saving functions: normal and slow. Energy saving operation mode: automatic energy saving operation. (normal, slow two reaction speed) no-load energy saving 40%, load energy saving 5%.
