Description

The ring main unit is based on SF6 load switch as the main switch, and the whole cabinet is suitable for distribution automation and compact and scalable metal-enclosed switchgear. It has the characteristics of simple structure, flexible operation, reliable interlocking and convenient installation. It can provide satisfactory technical solutions for different applications and users.

Feature

• 11kV-class SF₆ high-efficiency insulation: Uses SF₆ gas as the insulating medium, with insulation strength precisely adapted to the 11kV high-voltage level and excellent arc-extinguishing performance. It can stably block current leakage in high-voltage environments, significantly reducing the risks of faults such as short circuits and flashovers, and ensuring the reliable operation of medium and high-voltage power grids.

• Compact high-voltage adaptive design: Features a small and compact structure with a small footprint, making it particularly suitable for space-constrained 11kV high-voltage distribution scenarios such as urban distribution stations and industrial parks. It simplifies installation layouts while improving site utilization.

• Multiple safety protection mechanisms: Equipped with complete mechanical and electrical interlocking devices to strictly prevent misoperations and incorrect switching; built-in SF₆ gas leakage monitoring system provides real-time warnings of leakage risks. It complies with international high-voltage equipment safety standards, ensuring safe operation and maintenance.

• Low-maintenance and long-life characteristics: The fully sealed gas chamber design effectively isolates dust, moisture, and corrosive substances, reducing erosion of internal components by the external environment. It enables long-term maintenance-free operation with a service life of over 20 years, significantly lowering the whole-life-cycle cost.

• Flexible power distribution compatibility: Supports multiple wiring methods such as ring network and radial types, and can be quickly connected with 11kV-class transformers, cables, and other equipment. It adapts to the topological requirements of different medium and high-voltage distribution networks, meeting diverse power supply scenarios including urban power grids and large industrial plants.

• Balance of environmental protection and economy: SF₆ gas is recyclable and reusable, reducing resource waste; the equipment has low operating energy consumption, and long-term usage costs are controllable, balancing environmental protection requirements and project economic benefits.

Parameter