Product Overview
HXGN17-12 is a 12kV metal-enclosed vacuum ring main unit used in medium-voltage distribution systems. It features air insulation, compact modular design, arc-proof construction, and IP30 protection. Ideal for urban substations, residential buildings, and industrial plants.
Offers safe and reliable loop-in/loop-out switching, easy maintenance, and adaptable configuration. No SF6, eco-friendly design.
Key Features
- Rated Voltage: 12kV
- Rated Frequency: 50Hz
- Rated Current: 630A
- Short-Circuit Breaking Current: 20kA
- Short-Time Withstand Current (4s): 20kA
- Lightning Impulse Withstand Voltage (BIL): 75kV
- Power Frequency Withstand Voltage: 42kV
- Protection Grade: IP30 (cabinet)
- Operation Mode: Manual and motorized (optional)
- Installation: Wall-mounted or floor-standing
- Insulation Type: Air-insulated with vacuum interrupters
- Internal Arc Classification: Optional based on configuration
Typical Connection Scheme
The HXGN17-12(ZF) supports multiple functional units to meet different distribution requirements:
- Incoming Line + Busbar + Outgoing Line
- Load Break Switch + Fuse Combination
- Breaker + Disconnector + Earthing Switch
- Ring network configuration for power loop
- Single or dual transformer feeder lines
Each unit includes fully interlocked mechanical and electrical safety protection.
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