Main Power Transformer
S20-100000-110-37
1.Adopts high-efficiency energy-saving transformer, saving operating costs in the long term.
2.Rated capacity: 6300KVA - 125000KVA, suitable for power distribution and voltage regulation of main substations.
3.Optimized core and winding design: low temperature rise, stable operation and low noise.
4.Strong insulation performance, overload and impact resistance, long service life and convenient maintenance.
5.Complies with national and export standards.
Basic Parameters
Product Type: Three-phase, oil-immersed power transformer, off-circuit tap changing (on-load tap changing optional) main transformer
Rated Capacity: 6300KVA - 125000KVA
Voltage Regulation Mode: Off-circuit tap changing or on-load tap changing on high-voltage side
Cooling Mode: ONAN / ONAF optional (OFAF cooling system customizable)
Vector Group: YNd11 (customizable)
Energy Efficiency Level: High-efficiency energy-saving transformer
Executive Standards: GB1094, GB/T 6451, GB 20052, GB 311.1, IEC60076 Series
Core Material Configuration
Iron Core: High-grade grain-oriented silicon steel sheet, adopting mitered and stepped lap structure, with low no-load loss and low noise
Winding: Oxygen-free copper conductor, adopting advanced vacuum drying and vacuum oil filling process, with high mechanical strength, strong short-circuit resistance and stable insulation performance
Oil Tank: Adopting sealed structure, leak-proof, moisture-proof and long maintenance-free cycle
Product Advantages
Adopts high-efficiency energy-saving transformer with lower loss, energy saving and power saving, reducing long-term operating costs
On-load online voltage regulation or off-circuit tap changing is optional, ensuring stable operation under load fluctuation
Sealed structure, no leakage, simple and convenient operation and maintenance
Excellent short-circuit resistance, strong insulation performance, overload and impact resistance, reliable operation and long service life
Optimized core and winding design, with low temperature rise, stable operation and low noise
Highly customizable, on-load tap changer, OFAF cooling system, DGA online monitoring system, neutral protection device, heavy anti-corrosion coating and other configurations can be provided on demand
Application Scenarios
Main transformer for 110kV substation
Power supply for large industrial parks, metallurgy, chemical and heavy industry enterprises
Step-up and step-down transformers for wind power/photovoltaic power stations
Regional power distribution and grid connection projects
Main step-down stations of large factories, new energy boosting supporting facilities, and power supply systems for industrial and mining enterprises



