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XGN2-12 Indoor Metal-enclosed Switchgear
XGN2-12 Indoor Metal-enclosed Switchgear
XGN2-12 Indoor Metal-enclosed Switchgear

Product Overview:XGN2-12 Indoor Metal-enclosed Switchgear is a three-phase AC 50Hz, 12kV-rated indoor high-voltage power distribution device. Designed in compliance with GB3906 and IEC 60298 standards, it features an air-insulated, metal-enclosed structure. It is suitable for industrial and civil cable ring networks and power supply terminals (e.g., urban residential areas, subways, hospitals, compact substations). Its core function is power reception and distribution, optimized for frequent switching operations. Supports single-bus, single-bus with bypass, and double-bus configurations.

Rated Voltage: 10KV,11KV,12 kV (max. operational voltage)
Rated Current: 630 A – 3150 A
Insulation Level:Power Frequency Withstand Voltage: 42 kV/1 min/Lightning Impulse Withstand Voltage: 75 kV
Breaking Capacity:Rated Short-Circuit Breaking Current: 16–40 kA/Rated Short-Circuit Making Current: 40–100 kA
Ingress Protection (IP): IP2X (standard)
Environmental Limits: Altitude ≤1000 m, Temperature -25℃ to +40℃, Humidity ≤95% (daily average)

Product Introduction Technical Parameter Size

1.Product Description
        The XGN2-12 adopts a modular compartment design. The welded enclosure (angle steel/cold-rolled steel plate) comprises four independent compartments:

        Circuit Breaker Compartment: Front-lower section; houses vacuum circuit breakers (e.g., VS1, ZN28 series) with arc-gas pressure relief vents.
        Busbar Compartment: Rear-upper section; delta-configured busbars supported by porcelain insulators (bending strength 7350 N).
        Cable Compartment: Rear-lower section; includes cable racks and voltage indicators for overhead/cable terminations.
        Relay/Control Compartment: Front-upper section; accommodates protection relays, meters, and intelligent controllers; door-integrated status indicators.

        Complies with GB3905 “Five Interlocking Protections” and enables dual-sided maintenance (front: breaker access; rear: busbar/cable access).

2. Functional Capabilities
(1) Core Protection Functions
        Intelligent Protection: Controller supports overcurrent, instantaneous trip, undervoltage release, and auto-reclosing (resets transient faults, locks out permanent faults).
Arc Fault Protection: Pressure relief channels rapidly vent arc gases to limit internal arc damage.

(2) Safety Interlocks (“Five Protections”)
        Prevent load switching of disconnectors.
        Prevent erroneous opening/closing of circuit breakers.
        Prevent energizing with closed earthing switches.
        Prevent closing earthing switches on live circuits.
        Prevent access to live compartments.

(3) Data Management
        Real-time upload of current, voltage, fault records; supports remote SCADA integration.

3.Standard & Optional ConfigurationStandard & Optional Configuration

4. Product Features
(1) Structural Advantages
        Compact Layout: Delta busbar arrangement reduces height; 20% smaller footprint vs. conventional switchgear.
        High Reliability: Maintenance-free vacuum interrupters; mechanical endurance >10,000 operations.

(2) Maintenance Efficiency
        Visual Inspection: Observation windows and compartment lighting for real-time status checks.
        Modular Replacement: Integrated breaker-mechanism design enables quick interchange.

(3) Environmental Resilience
        Harsh Conditions: Operational range -40℃ to +40℃ (special design); seismic withstand 8 Richter.
        Robust Enclosure: Segregated compartments + IP2X protection against dust/condensation.

5.Detailed Technical ParametersDetailed Technical Parameters

Note: Custom designs available for special conditions (e.g., heavy pollution, extreme low temperatures).

Domestic Models & Dimensions
XGN2-12 (Standard) 1100×1200×2650 Conventional distribution
XGN2-12(Z) (Smart) 1100×1200×2650 Remote monitoring/Auto-protection
XGN2-12(G) (High-altitude) 1100×1200×2650 Areas ≤3000 m ASL

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XGN2-12 Indoor Metal-enclosed Switchgear
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