Main transformer
Product benefits
Ultra-low loss design, energy-saving and power-efficient, significantly reducing long-term operating costs
Flexible voltage regulation, maintaining stable output voltage under load fluctuations, ideal for multi-level transmission from 110kV to 35kV
Fully sealed structure, leak-proof and moisture-proof, with simple and efficient operation and maintenance
Excellent short-circuit resistance, high reliability, extended service life, suitable for long-term and stable requirements
Compact design, easy to install and transport, suitable for various working conditions involving multi-level voltage power transmission
Three-phase Three-winding Load Transformer — Detailed Product Description
1. Main Features and Parameters
1.1 Product Type
Three-phase three-winding load transformer with windings immersed in dielectric oil, ensuring effective cooling and protection from external factors, designed for power conversion and distribution in industrial and energy complexes.
1.2 Rated Capacity
Rated capacity range: 6300 KVA — 125000 KVA, suitable for energy facilities of various scales; custom manufacturing available upon request.
1.3 Tap Changer Type
Two customizable tap changer options:
On-load Tap Changer (OLTC): Tap changing without disconnecting from the grid, for facilities with continuous power supply, featuring high durability and overload resistance.
Stepless Voltage Regulation: Precise regulation, suitable for facilities with high requirements for voltage stability.
1.4 Cooling mode
Cooling mode: ONAN or ONAF, ensuring efficient heat dissipation, preventing overheating, and maintaining stable transformer operation.
1.5 Materials
Core: High-quality cold-rolled silicon steel sheet, ensuring low no-load losses.
Winding: High-conductivity oxygen-free copper, guaranteeing stable performance and high overload capacity.
Tank: High-strength steel plate with anti-corrosion coating, suitable for outdoor operation.
Oil system: High-quality transformer oil, with good heat dissipation and effective insulation.
2. Product advantages
Ultra-low loss design: Energy-saving effect, significantly reducing long-term operating costs.
Flexible voltage regulation: Supports stable output voltage under load fluctuations, ideal for multi-level power transmission (110 kV to 35 kV).
Fully sealed design: No leaks or moisture ingress, operation and maintenance are simple and efficient.
Excellent short-circuit resistance: High reliability, extended service life, suitable for long-term stable operation.
Compact design: Easy to install and transport, suitable for various working conditions of multi-level power transmission.
