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Product Overview
The XGN15 Series Gas-Insulated Ring Main Unit is a versatile modular switchgear designed to meet the complex demands of 12kV distribution networks. The core of the system is the FLN36-12 load break switch, which is hermetically sealed within an epoxy resin shell using Automatic Pressure Gelation (APG) technology to ensure superior insulation and structural integrity. This series is highly adaptable, offering specialized units for standard switching, cable branching, transformer protection (via fuse combinations), and high-reliability vacuum circuit breaking.
Key Product Features
- Advanced APG Insulation: The main circuit is sealed in an epoxy resin housing, providing excellent insulation and a compact, reliable structure.
- Modular Versatility: Available in single-unit, double-bushing, or multi-unit (up to 5 units) standard configurations with top-mounted busbar expansion.
- Comprehensive Transformer Protection: The Load Break Switch-Fuse unit protects transformers up to 1250kVA and features a trip linkage to prevent single-phase operation.
- High-Performance VCB: The Vacuum Circuit Breaker unit offers a mechanical life of 10,000 cycles and ultra-fast protection with a trip time of $\le 30ms$.
- Environmentally Resistant: Designed to be maintenance-free and fully protected against external environmental influences.
- Operational Safety: Includes mechanical interlocking between load switches, grounding switches, and cable doors, alongside padlockable panels.
Technical & Artistic Details
The XGN15 series balances industrial power with a design optimized for safety and ease of use.
- Sealing Technology: The SF6 gas insulation and APG-cast components ensure that the high-voltage parts are completely untouchable and shielded from dust and moisture.
- Interlocking System: A sophisticated mechanical interlock prevents incorrect grounding and ensures that the cable room can only be accessed when the system is safely grounded.
- Monitoring & Control: Standard units include SF6 pressure gauges, live-line voltage indicators, and position indicators for both load and grounding switches.
- Automation Ready: Supports the installation of motorized operating mechanisms and microcomputer-based protection devices for remote distribution automation (FTU/RTU).
- Visible Isolation: VCB units provide a clear, visible isolation break-point for added safety during maintenance.
