3-phase oil immersed power transformer
SZ22-25000/35-10.5
1. Transformer operating efficiency ≥ 97%.
2. Stable voltage: On-load/no-excitation tap changer for online setting without power off, adapting to load fluctuations.
3. Stable structure: High-quality iron core + oxygen-free copper windings, strong short-circuit resistance and low failure rate.
4. Sealed design: Sealed, waterproof, long cycle without maintenance and low daily operating load.
5. Low noise and eco-friendly: suitable for substations, industrial plants, new energy projects, etc.
6. Compact design: small size, light weight, easy to install and transport, applicable to 35kV main grid, industrial step-down system, park power distribution.
SZ22-25000/35-10.5
Basic parameters
Product Type: Three-phase two-winding / Three-phase three-winding Rated Power: 50kVA - 63000kVA Voltage Regulation: On-Load Tap Changer or Off-Loop Manual/Motorized Tap Changer on High-Voltage Side Cooling Method: ONAN / ONAF Vector Group: Dyn11 / YNd11 (Industry Standard Configuration) Energy Efficiency Class: Primary Energy Saving (High-Efficiency Energy-Saving Transformer) Standard Compliance: GB1094, IEC60076
Core material configuration
Core: High-quality permeability, grain-oriented design, low no-load loss, and low noise. Winding: High-quality oxygen-free copper winding, high mechanical strength and excellent short-circuit resistance. Tank: Fully sealed design, leak-proof and moisture-proof, with a long, maintenance-free service life.
Product benefits
Ultra-low energy loss, energy saving, and low operating costs. On-line voltage regulation ensures stable voltage under load fluctuations; off-circuit manual or motorized regulation is optional. Sealed, leak-free design for easy maintenance. Excellent short-circuit resistance, reliable operation, and a long service life. Compact design for easy installation and transportation, suitable for various operating conditions.
Application scenarios
Basic substation transformers35 kV, common step-down stations for large plants, power distribution in industrial parks, new energy support systems and power supply systems for industrial and mining enterprises.
