Integrates high-voltage switchgear, step-up transformer, and low-voltage distribution equipment within a fully sealed enclosure, designed for renewable energy generation systems such as solar PV. It enables voltage stepping from 0.315–1 kV to 10 kV / 35 kV for grid connection. The system features weather-resistant design with protection against sand, salt mist, rain, and snow, ensuring reliable operation in harsh environments. It supports local operation as well as remote monitoring with SCADA “four remote” functions (telemetry, remote control, remote signaling, and remote adjustment).