110kV Oil Immersed Power Transformer 40MVA Capacity with Low Loss Silicon Steel Core and ONAN/ONAF Cooling

• High-magnetic-permeability silicon steel core minimizes hysteresis loss for improved efficiency
• Low-loss copper windings reduce current transmission waste and enhance performance
• Enhanced heat dissipation system with hybrid ONAN/ONAF cooling maintains optimal operating temperatures
• Ultra-quiet operation with noise levels ≤65dB at 1 meter distance
• Robust insulation rating of LI450AC200 and above for superior short-circuit withstand capacity
• On-load tap changers (OLTC) enable real-time voltage adjustment for dynamic grid conditions
• Advanced online monitoring systems track oil quality, winding temperature, and partial discharge
• Designed to operate reliably in harsh outdoor environments with extreme temperatures and humidity
• Provides early warnings of potential issues to ensure long-term safe and stable grid operation

Guanggao Transformer is a professional transformer manufacturer with nearly 25 years of export experience. We produce single-phase, three-phase, dry-type, distribution, and high-voltage transformers (110 kV and above) that meet IEEE/ANSI/UL/CSA and IEC standards.

The company features modern laboratory facilities including a high-voltage test hall with 3000kV lightning impulse testing device, and advanced testing equipment such as CA-21 moisture analyzer from Mitsubishi, American Fluke Ti30 infrared image detector, and American RM-3WE three dimensional vibration analyzer. It was identified as the national power transformer energy efficiency testing laboratories in 2011.

Guanggao Transformer has undertaken major projects including the National Olympic Security Power Project, National 851 project, Guangzhou Asian Games, and Guangzhou BRT. Products are exported to Myanmar, Madagascar, Malaysia, and other countries.