Surge Arrester Online Monitoring System
The online monitoring system for surge arresters requires obtaining the phase difference between the leakage current of the surge arrester and the bus voltage where the surge arrester is located when calculating the resistive current. Accurate phase difference acquisition is crucial for ensuring the precision of resistive current calculation. Considering that the leakage current and bus voltage are measured by different devices, which may be installed far apart, this device adopts the mains synchronization method to achieve synchronized sampling between different devices, thereby obtaining accurate phase differences.
