SFZ11 Series Transformer Product Details

1. Product Introduction

The SFZ11 series is a three-phase, double-winding, oil-immersed air-cooled power transformer with on-load voltage regulation, mainly applied in 35kV power transmission and distribution systems. Adopting the 11-type low-loss design, equipped with on-load tap changer and air-cooled heat dissipation system, it features precise voltage regulation, stable operation, high energy efficiency and strong overload capacity.

It is widely used as the main transformer in substations, industrial and mining enterprises, industrial parks and new energy power stations, meeting the power supply requirements of high reliability and high stability.

3. Main Features

1. On-load voltage regulation, stable voltage

   Voltage can be adjusted automatically without power interruption, adapting to grids with large load fluctuation and unstable voltage. High output accuracy ensures safe and stable operation of electrical equipment.

2. Low loss and energy saving, low operating cost

   Adopting high-permeability silicon steel sheet and full-copper windings, its no-load loss and load loss are much better than national standards, with high energy efficiency level and obvious power-saving effect in long-term use.

3. Air-cooled heat dissipation, strong overload capacity

   Oil-immersed air-cooled design provides high heat dissipation efficiency, supporting peak load and short-time overload operation, with low temperature rise and longer service life.

4. High short-circuit withstand capacity, high reliability

   Windings feature high mechanical strength and optimized clamping structure, with excellent ability to withstand sudden short circuits, low partial discharge, ensuring safe and reliable operation.

5. Fully sealed, low noise, maintenance-free

   Fully sealed oil tank structure prevents oil oxidation and moisture absorption, reducing daily maintenance. Low noise makes it suitable for urban areas, factories, residential areas and other environments.

4. Application Scenarios

• Main transformers in 35kV substations

• Step-down substations in industrial and mining enterprises

• Power supply systems for industrial parks and commercial complexes

• Booster stations for photovoltaic, wind power and other new energy projects

• Places requiring high power supply stability such as hospitals, data centers and transportation hubs

• Power grid renovation and urban distribution network upgrading projects