1. Apply digital processing technology to real-time monitor and display power distribution circuit working condition. 2. Use 485 communication technology to real time and accurately transfer each detector operation parameters and control instructions 3. Employ multi-level distributed intelligent control system to provide locality protection of the distribution circuit 4. Equipped with residual current alerting function 5. Intelligent data analyzing and parameters setting 6. Use stand-by power system to support the whole system working more than 4hours |