Smart Ring Main Unit

This is the HXGN□-12 ring main unit. It is suitable for factories, residential areas, high-rise buildings, schools, and parks. The rated voltage is 12kV, and the rated frequency is 50Hz. It is designed for three-phase AC ring networks and terminal distribution systems. In power systems, it provides equipment protection, power distribution, and control. This smart ring main unit is equipped with a complete five-prevention interlocking system. It can also be easily integrated into a box-type substation, offering excellent value in a single unit.

This smart ring main unit complies with GB3906 and GB/T11022 standards, as well as IEC60298 and IEC60694. The operating temperature range is -25°C to +40°C, with a daily average not exceeding 35°C. The maximum installation altitude is 1000 meters. The average daily humidity should not exceed 95%, and the monthly average should not exceed 90%. It can withstand seismic intensity up to level 8. It should not be installed in environments with fire hazards, explosion risks, heavy pollution, or severe vibration. If your site conditions differ, please let us know-we can provide customized solutions.

This smart ring main unit features a complete mechanical interlocking system. When the load switch is closed, the grounding switch cannot be engaged, and the front door cannot be opened. When the load switch is open, the grounding switch can be engaged. When the grounding switch is engaged, the front door can be opened. When the grounding switch is disengaged, the load switch can operate. For bottom cable entry, if the circuit is live, an electromagnetic lock prevents the front door from opening. A dedicated key is provided for emergency unlocking. We offer a 1-year warranty, including damage inspection and parts replacement with no disputes.