In view of the problems such as long cycle

difficult coordination

large construction volume and cumbersome signal verification in the power-off transformation of the measurement and control devices in conventional substations

it proposes a new method for the transformation of the measurement and control devices without power-off based on the standard communication of manufactured messages.This method utilizes the principle of interval layer data mirroring to establish a mirror measurement and control device and optimize the online transition mechanism of the secondary loop.Field tests show that this method has the advantages of safety

high efficiency and clean construction.It realizes the transformation without power interruption and can increase work efficiency by more than double.It has practical engineering Application and promotion value.