20kV Three Phase Oil Immersed Distribution Transformer

Huawan 20KV three-phase oil-immersed distribution transformer is designed with a capacity range from 100kVA to 3000kVA, ensuring reliable performance for medium-voltage power distribution systems.

20kv Transformer Price

Specifications of Three Phase Oil Immersed Distribution 20kv Transformer

ParameterDetails/Specifications
Rated Power200 kVA ~ 10,000 kVA
Input Voltage20 kV
Output Voltage0.4 kV / 0.69 kV / 1 kV
Rated Frequency50 Hz / 60 Hz
Capacity500 L ~ 8000 L
Cooling MethodONAN (natural oil cooling)/ONAF (oil air cooling)
Impedance Voltage4% ~ 6%
Load Loss< 2 W / kVA
Short-Circuit Loss≤ 2%
Ambient Temperature-5 °C~40 °C (can adapt to extreme weather conditions, high temperature resistant version can reach 50 °C)
Weight1000 kg ~ 15,000 kg
External DimensionsCustomized according to power model: 1.8m x 3.0m x 5.0m
Insulation LevelF-grade (155 °C)/H-grade (180 °C)
Seismic ResistanceGrade 8 seismic resistance, suitable for installation in complex geological areas
Noise Level≤ 60 dB (low-noise design, suitable for residential areas or offices)
Energy Saving PerformanceEfficient design, compliant with energy-saving standards, reduces power consumption and operating costs
Corrosion ResistanceHighly corrosion-resistant oil, ensuring long-term efficient and stable operation
Operational ReliabilityHigh reliability design, preventing short circuits and overloads, reducing failure rates

As one of the leading distribution transformer manufacturers, Huawan provides innovative, high-performance transformers tailored to meet global energy demands with superior reliability and efficiency.


Features of Three Phase Oil Immersed Distribution 20kv Transformer


The 20kV transformer features a rated voltage of 20kV, making it ideal for efficient high-voltage distribution in medium-voltage networks. However, as a three-phase oil-immersed model, it relies on insulating oil for cooling and superior electrical performance rather than cast resin technology. The oil immersion provides effective heat dissipation and robust insulation, while the design significantly lowers operating noise and vibration, reducing mechanical stress during extended use.

This oil-immersed 20kV transformer offers reliable protection against environmental factors, with sealed construction that minimizes risks of leaks when properly maintained. It delivers high safety for various installations, though periodic checks for oil levels and condition are recommended. Maintenance is straightforward compared to some alternatives, focusing on oil quality and specialized components as needed. Environmentally, modern versions incorporate sustainable practices, aligning with green standards through efficient energy use and reduced losses.



Application of Three Phase Oil Immersed Distribution 20kV Transformer


The three-phase oil-immersed 20kV transformer excels in environments requiring robust reliability, efficient space utilization, and strong performance under load. In hospitals, its secure and relatively quiet operation ensures consistent power in critical medical settings. For commercial complexes, it supports installations in basements or rooftops with effective cooling.

It proves highly effective in renewable energy facilities, serving as a dependable choice for integrating solar and wind power systems into the grid. Data centers benefit from stable voltage regulation and clean power delivery capabilities. In industrial facilities, the 20kV transformer installs seamlessly into switchgear panels or distribution areas, facilitating straightforward setup and long-term operation.

Drawing and Accessories

Factory Production Photos

Factory Production Photos
Factory Production Photos

Have Questions About Huawan Transformer and Switchgear? Get in Touch With Us Now!

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Company: Room 914-915, Block A, No. 188 Qianshan South Road, Shushan District, Hefei, China

Factory: South of Chunhua Road and West of Zhihe Road, Xuancheng Economic andTechnological Development Zone, Anhui, China
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Company: Room 914-915, Block A, No. 188 Qianshan South Road, Shushan District, Hefei, China

Factory: South of Chunhua Road and West of Zhihe Road, Xuancheng Economic andTechnological Development Zone, Anhui, China