Rated Voltage & Capacity Range Rated Voltage: 30kV/33kV/34.5kV/35kV/etc.
Rated Capacity: 800 kVA – 75,000 kVA
Frequency: 50Hz/60Hz
Cooling Method: ONAN / ONAF
Tap Changer: Off-circuit tap changer or On-load tap changer (OLTC)
Vector Groups: Yd11, YNd11, Dyn11, Yyn0 (customizable)
Key Features & Advantages Low Loss, High Energy Efficiency Premium cold-rolled grain-oriented silicon steel core
Multi-step fully mitered joints for reduced no-load loss and excitation current
Energy efficiency compliant with IEC 60076 series, with losses tested and verified according to international standards.
Low Noise Operation Optimized magnetic flux density design
High-precision automatic core stacking technology
Vibration-damping structure to minimize electromagnetic noise
Leak-Proof, Maintenance-Friendly Design Fully sealed oil tank with positive and negative pressure leak testing
High-quality one-piece molded sealing gaskets
Designed for long-term stable operation with minimal maintenance
Strong Short-Circuit Withstand Capability Robust winding structure using high-strength copper conductors
Precisely calculated ampere-turn balance
High-density insulation blocks and overall compression assembly
High-Temperature & Long-Life Insulation System Mixed insulation system using high-temperature insulation materials (including Nomex® where required)
Seven-level thermal control design philosophy
Designed service life of 30 years or more
Technical Highlights Core-type transformer structure with disc-type HV windings
LV windings available in wire-wound or foil-wound design
Designed for continuous operation under high ambient temperatures
Excellent overload capability during peak load periods
Suitable for indoor and outdoor installation
Typical Applications Utility substations
Industrial power plants
Water treatment and desalination projects
Mining and cement plants
Renewable energy integration projects
Infrastructure and commercial power distribution
Why Choose CEEG? Global project experience and international compliance - CEEG 34.5kV oil transformers were delivered to Saudi Aramco, to view details please visit: HEC & CEEG Saudi Project Transformer Shipping Ceremony
Flexible customization for voltage, capacity, impedance, and accessories
A national-level “Specialized and Innovative Little Giant” enterprise
Reliable quality backed by long-term operational performance
Vertical Winding Machine
Horizontal Winding Machine
Vacuum Drying Equipment
Air Cushion Transport Vehicle
Rated Voltage & Capacity Range Rated Voltage: 30kV/33kV/34.5kV/35kV/etc.
Rated Capacity: 800 kVA – 75,000 kVA
Frequency: 50Hz/60Hz
Cooling Method: ONAN / ONAF
Tap Changer: Off-circuit tap changer or On-load tap changer (OLTC)
Vector Groups: Yd11, YNd11, Dyn11, Yyn0 (customizable)
Key Features & Advantages Low Loss, High Energy Efficiency Premium cold-rolled grain-oriented silicon steel core
Multi-step fully mitered joints for reduced no-load loss and excitation current
Energy efficiency compliant with IEC 60076 series, with losses tested and verified according to international standards.
Low Noise Operation Optimized magnetic flux density design
High-precision automatic core stacking technology
Vibration-damping structure to minimize electromagnetic noise
Leak-Proof, Maintenance-Friendly Design Fully sealed oil tank with positive and negative pressure leak testing
High-quality one-piece molded sealing gaskets
Designed for long-term stable operation with minimal maintenance
Strong Short-Circuit Withstand Capability Robust winding structure using high-strength copper conductors
Precisely calculated ampere-turn balance
High-density insulation blocks and overall compression assembly
High-Temperature & Long-Life Insulation System Mixed insulation system using high-temperature insulation materials (including Nomex® where required)
Seven-level thermal control design philosophy
Designed service life of 30 years or more
Technical Highlights Core-type transformer structure with disc-type HV windings
LV windings available in wire-wound or foil-wound design
Designed for continuous operation under high ambient temperatures
Excellent overload capability during peak load periods
Suitable for indoor and outdoor installation
Typical Applications Utility substations
Industrial power plants
Water treatment and desalination projects
Mining and cement plants
Renewable energy integration projects
Infrastructure and commercial power distribution
Why Choose CEEG? Global project experience and international compliance - CEEG 34.5kV oil transformers were delivered to Saudi Aramco, to view details please visit: HEC & CEEG Saudi Project Transformer Shipping Ceremony
Flexible customization for voltage, capacity, impedance, and accessories
A national-level “Specialized and Innovative Little Giant” enterprise
Reliable quality backed by long-term operational performance
Vertical Winding Machine
Horizontal Winding Machine
Vacuum Drying Equipment
Air Cushion Transport Vehicle
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