Core Applications：
Suitable for 12kV power distribution systems in factories, residences, high-rise buildings, and industrial parks, for power reception/distribution, line control, and short-circuit/overload protection. Particularly suitable for ring network power supply, dual-power radial power supply, high-voltage side control of transformer substations, and terminal power supply scenarios, effectively isolating faults and minimizing power outage areas.
Core Structure and Characteristics
Insulation and Sealing: Live components are sealed within an SF₆ gas tank with an IP67 protection rating, unaffected by condensation, dirt, or salt spray. SF₆ gas serves as the insulation and arc-extinguishing medium, and the arc-extinguishing chamber is maintenance-free.
Main Switch Configuration: Standard configuration includes a FLN36-12/FLRN36-12 type SF₆ three-position load switch (integrated load/isolation/grounding). Optional load switch-fuse combination appliances or vacuum circuit breakers are available, supporting manual/electric operation.
Safety Design: Built-in pressure relief channel and mechanical "five-proof" interlocks prevent accidental opening/closing, live grounding, and accidental entry into energized compartments, ensuring personal and equipment safety.
Modular Expansion: Basic modules include load switches, combined electrical appliances, circuit breakers, etc., connected by insulated busbars between cabinets, providing strong fault isolation and allowing for flexible combination and expansion.
Automation Adaptation: Reserved PT/CT/FTU/DTU interfaces support remote monitoring, fault location, and self-healing, meeting the needs of distribution network automation.
