The IEC 330kV 50MVA oil-immersed power transformer is engineered for ultra-high voltage transmission systems, serving as a critical component in regional power grid infrastructure. This three-phase transformer delivers reliable performance for large-scale power generation facilities and grid distribution hubs.

• High-quality silicon steel core construction for optimal magnetic performance
• Low-loss copper windings for enhanced energy efficiency
• Fully sealed cooling system ensuring reliable heat dissipation
• Advanced insulation system rated LI950AC395 for superior dielectric strength
• Low noise operation suitable for various installation environments
• High short-circuit resistance for grid stability and protection
• Optional online monitoring and on-load tap changing capabilities

Our transformers comply with international standards including:

Additional certifications available upon request for specific market requirements.

Guanggao Transformer brings over 25 years of specialized experience in high-voltage transformer manufacturing. Our facility features state-of-the-art testing equipment including a 3000kV lightning impulse generator, moisture analyzers, and vibration testing systems. We have successfully supplied critical infrastructure projects including the National Olympic Security Power Project and Guangzhou Asian Games.