Powering the Depths: The Compact Transformer Engineered for Tunnel Safety!

Tunnel infrastructure demands space-efficient, robust power solutions that withstand harsh underground conditions. Aputon’s Three-Phase Box Type Compact Transformer is specifically designed for:

✔ High Humidity & Corrosion Resistance – IP55-rated enclosure with anti-condensation heating

✔ Space Optimization – 40% smaller footprint vs. conventional units

✔ Fire Safety – Flame-retardant materials (IEC 60726 compliant)

✔ Low Noise – <65dB operation for worker comfort

Technical Specifications:

• Capacity: 50kVA-2500kVA

• Voltage: 10kV/0.4kV or customizable

• Temperature Range: -25°C to +50°C

• Efficiency: ≥98% (at 75% load)

Why Aputon?

Since 2015, our ISO-certified manufacturing has supplied 20+ countries with:

✓ Custom designs for unique tunnel geometries

✓ 5-year warranty on core components

✓ Smart monitoring options (IoT-enabled)

Case Study: Our transformers power 18km of the Guangzhou Metro Tunnel with zero failures since 2018.

/product/transformer/three-phase-box-type-compact-transformer-for-tunnel