Low-Noise, Energy-Efficient Dry-Type Transformer Solutions for Premium Commercial Buildings
Ⅰ. Core Pain Points
Urban CBD supertall buildings face two critical challenges:
• Noise Control Difficulty: Traditional transformers' no-load noise (>55dB) disrupts premium office environments, violating green building acoustic standards.
• Premium Space Constraints: Electrical room costs exceed ¥100,000 per square meter; large traditional transformers encroach on core functional areas.
Application Scenarios: 500m+ supertall landmarks, LEED Gold-certified office towers, international financial centers.
II. Customized Solution Design
1. Acoustic Optimization System (Noise ≤45dB(A))
Technical Module |
Innovative Design |
Performance Gain |
Magnetic Noise Reduction |
Stepped-lap core joints + 27QG110 high-permeability silicon steel |
≤45dB(A) no-load noise ▼ 18% below national standard |
Vibration Control |
Resilient shock pads + Nano-fiber sound-absorbing panels |
8dB structural noise transmission reduction |
▶ Achieved Outcome: Operating sound pressure level lower than a library environment (50dB), compliant with ISO 3744 indoor acoustic certification.
2. Space Compression Technology (+20% Power Density)
Coil Foil Winding Process: 0.05mm ultra-thin copper foil lamination technology
→ 15% eddy current loss reduction3D Cooling Channels: Vertical air ducts + honeycomb radiators
→ 30% thermal efficiency improvement
Footprint Comparison (2500kVA):
Traditional Transformer: ≥ 3.8m²
This Solution: 3.0m² ▼ 21% space saving
3. Fire Safety Assurance (Zero Hazardous Emissions)
Insulation System: UL-certified CERADUR® eco-friendly resin
Fire Resistance: Passes 950℃ open flame test
Safety Certs: IEC 60726 / IEC 60076-11
■ Key Breakthrough: Zero halogen gas emission during combustion (HCl < 0.1%), preventing secondary toxic hazards in fires.
III. Quantified Customer Value
Dimension |
Benefit Metrics |
Application Value |
Economic Value |
30% reduction in electrical room footprint |
Saves ≈100m² per 10,000m² building → ¥3M/year added leasable area |
Certification Value |
+15 points towards LEED credits |
40% increase in Gold certification success rate |
Operational Cost |
12% lower load loss (IEC 60076) |
≈50,000 kWh annual power savings per 2500kVA unit |
IV. Target Application Scenarios
New Supertall Landmarks: Complies with GB 50045 supertall building fire codes.
Premium Commercial Retrofit: Enables capacity upgrade without expanding electrical rooms.
Data Center Backup Power: Certified compliant with IEEE 519 harmonic current limits.
Success Case: A 380m Shanghai financial center implementing this solution achieved LEED Gold certification, with BMS-measured noise levels at 43.7dB(A).
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