1. Electrical Isolation

• Provides full-pole physical isolation (isolation distance ≥150mm)      with residual voltage <50V during maintenance, compliant with IEC      62271-102.

2. Load Current Management

• Rated current range:      630A~4000A, featuring:

• Normal load switching (AC-31B duty at cosφ=0.7)

• Short-time withstand current: 25kA/1s

3. Fault Protection

• Integrated with digital      relays for:

• Overcurrent tripping (operation time ≤35ms @ 3In)

• Instantaneous short-circuit breaking (Icu=50kA per       IEC 60947-2)

4. Eco-friendly Insulation

• Utilizes dry air      insulation (SF6-free) with:

• Power-frequency withstand: 42kV/1min (12kV systems)

• Lightning impulse: 95kV (1.2/50μs waveform)

• RoHS compliance (heavy metals <100ppm)

5. Compact Design

• 40% smaller footprint vs.      conventional GIS, typical dimensions:

• 12kV cabinet width: 600mm

• 24kV module height: 1800mm

6. Smart Grid Integration

• Supports:

• IEC 61850 communication protocol

• Online temperature/partial discharge monitoring

• Automatic reclosing (<200ms recovery time)

7. Modular Configuration

• Expandable solutions      include:

• Fuse combination units (transfer current up to       3.15kA)

• Automatic Transfer Switching (ATS) systems

• DER grid-connection interfaces

Application Guidelines

• Typical      Installations:

• Urban distribution networks (short-circuit capacity       ≤25kA)

• Industrial/commercial substations (pollution degree       ≤Ⅲ)

• Renewable energy plants (-25℃~+40℃ ambient)

• Selection      Matrix:

Technical Limitations & Mitigations

Environmental Constraints

• High      Humidity (RH＞95%):

• Mandatory anti-condensation heaters (200W/m³)

• Insulators certified per 1000h salt spray test

• Severe      Contamination (ESDD＞0.3mg/cm²):

• RTV coating application (thickness ≥0.5mm)

• Increased creepage distance to 31mm/kV

Breaking Capacity Enhancement

• Vacuum interrupter      optimizations:

• Axial magnetic field contacts (flux density       >0.3T)

• CuCr50 contact material