SZ20
Power
Three
Core-type Transformer
Oil-immersed Type Transformer
Two-winding Transformer
ISO9001-2000, ISO9001, CCC
Power Transformer, Distribution Transformer, Transformer for Wind Power
Power Frequency
Ring
Han's Power
Provided
on-Load Tap Changer
Automatically or Manually
Shanghai/Ningbo/Guangzhou/Shenzhen
Han's Power
Wooden Case / According Customers′ Demands
30kVA - 5500kVA
China
8504210000
Product Description
Oil-Immersed Power Transformer with On-Load Tap Changer
Capacity: from 200kVA - 3150kVA

The SZ11, SZ13, and SZ20 series on load tap changer oil immersed power transformers are power transformers that can regulate voltage under load conditions. They are upgraded products developed based on the S11 series oil immersed power transformers.
The voltage level is 35kV and below, and the product capacity range is 200-3150kVA.
It is suitable for areas with large and frequent voltage fluctuations in the power grid, enterprises, or places with stable voltage requirements.
The voltage level is 35kV and below, and the product capacity range is 200-3150kVA.
It is suitable for areas with large and frequent voltage fluctuations in the power grid, enterprises, or places with stable voltage requirements.
Features:
- The on load switch can be operated automatically or manually under load, or through a remote voltage regulator controller to achieve voltage regulation
- Adopting a new oil passage structure, high heat dissipation efficiency, reducing transformer temperature rise, and extending product service life
- Design of pressure relief valve protection device to prevent transformer damage caused by high fault pressure
- Temperature inspection protection device to prevent transformer damage caused by high temperature.







- ISO 9001
- ISO 14001
- ISO 45001
- ISO 50001
- 68 Invention Patents
