Tel: +86-15876591363 
Email: Tony@aputon-transformer.com
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Engineer's Blueprint: What Makes Our 4MVA Transformer Tick?
2025-06-04 09:45:05
Click：
Core Specifications of Aputon's 4MVA 33kV Oil Transformer:
• Rating: 4MVA (4000kVA)
• Voltage Ratio: 33kV/11kV or customizable
• Vector Group: Dyn11 standard (others available)
• Impedance: 6-10% (adjustable)
• Losses: ≤ 24kW no-load, ≤ 180kW load
• Cooling: ONAN (Oil Natural Air Natural)
Guangzhou Aputon Electrical adds value through:
▶ Computerized design using ANSYS simulation
▶ Step-lap core construction reducing losses
▶ Corrosion-resistant radiators
Testing Protocol Includes:
Lightning impulse 170kV
Partial discharge <10pC
Sound level <65dB
Global Certifications: IEC, IEEE, GB standards. Power your project with precision-engineered transformers!
/product/transformer/4mva-33kv-oil-type-transformer
Author：
Guangzhou Aputon Electrical Co.,Ltd.
CONTACT
Office-ADD: Second floor, Jiutan Village, Xiuquan Street, Huadu District, Guangzhou, Guangdong, China
Factory-ADD: Fenjiangbei Road No.91, Chancheng, Foshan, Guangdong, China
(formerly State-owned Foshan Transformer Factory)
Phone: +86-15876591363
00 1 (323) 841-2808
E-mail: Tony@aputon-transformer.com
Lily@aputon-transformer.com
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