33KV Ring Main Unit

According to different configurations, the solid insulated ring network cabinet can realize the functions of breaking load current, breaking short-circuits current, manual and automatic switching of dual power supply lines, current quick-break protection, single-phase grounding protection of small current grounding system, and communication. The solid insulated ring main unit is divided into V unit (breaker unit), C unit (load switch unit), F unit (combined electrical unit), each unit can be used alone or freely expandable, and its structure is divided into an instrument room. The operating mechanism, one-time part. The instrument room can be equipped with a microcomputer protection device (controller). The mechanism is a special spring operating mechanism. The APG automatic gel process is used for the one-time part. The switch and the arc extinguishing chamber are completely sealed in epoxy resin, and there are special joints and The bus is connected.

The internal structure of the cabinet

The core of the solid insulated ring network cabinet is composed of several important parts such as a vacuum interrupter, a solid insulation system, a three-station knife switch, and an operating mechanism.