Main power transformer
1. High efficiency and energy saving, efficiency transformer operation is ≥ 97%
2. Voltage stability: can be equipped with load tapping switch for online voltage regulation and power off, adapt to load fluctuations, and optional excitation-free voltage regulation
3. Stable and reliable design using high quality iron core + oxygen-free copper winding, with high mechanical strength, strong anti-short-circuit shock ability and low failure rate
4. Sealed design, the oil tank is sealed and moisture-proof, with a long maintenance-free period, and the daily workload is light
5. Low noise level and environmentally friendly, the silicon steel core has an optimized noise suppression design, which is an eco-friendly compact structure, compact and space-saving, convenient for installation and transportation, and suitable for various working conditions.
Product type: Three-phase double-winding oil-immersed power transformer
Rated power: 6300KVA - 125000KVA
Voltage regulation method: Off-circuit tap changing or on-load tap changing
Cooling method: Oil-immersed self-cooling / air cooling (ONAN/ONAF)
Connection Group: YNd11
Energy efficiency class: Primary energy-saving (high-efficiency energy-saving transformer)
Implementation standards: GB 1094, GB/T 6451, GB 20052, IEC60076
Core: High magnetic permeability cold-rolled silicon steel sheets
Windings: Oxygen-free copper wire with strong short-circuit resistance system
Tank: Fully sealed steel tank, leak-proof and anti-corrosion
Product advantages: low losses, energy saving and reliability, low noise level, minimal no-load and load losses, strong anti-short-circuit capabilities, excellent insulation, fully sealed, leak-proof and maintenance-free, low noise level meeting environmental protection requirements, compact design for convenient transportation and installation, suitable for various complex working conditions.
Application scenarios: Mainly used for 110 kV regional substations and step-down of main transformers in substations, suitable for voltage step-up or step-down in large industrial enterprises, petrochemical, metallurgy, and new energy power stations (wind power/photovoltaic). It can also be applied to urban power grids, industrial parks, and large commercial complexes for power distribution, suitable for power grid upgrades and replacement of old transformers, and suitable for various outdoor and indoor installations.
