Zhejiang Jiangshan Hengli Electrical Co., Ltd. is one of the leading manufacturers and suppliers of civil power supply oil type transformer in China. If you're going to wholesale durable civil power supply oil type transformer made in China, welcome to get pricelist from our factory. All customized products are with high quality and low price.
Civil power supply oil type transformer is a reliable choice for your civil power projects such as village grid upgrades, residential community power distribution, roadside lighting systems or small town public power supply. We are a professional factory that focus on manufacturing all types of power transformers for global civil and commercial projects. We have run our production plant for more than 20 years.
Unlike industrial heavy-duty transformers built for mines or large factories, our civil oil type transformers are designed specifically for daily residential and public electricity use. We cover a full capacity range starting from small 10kVA, 50kVA, 75kVA, 100kVA up to 2500kVA. Most civil contractors pick 75kVA and 100kVA models for rural villages, while 200kVA to 400kVA units are popular for new residential districts. Every unit acts as a step-down transformer, turning 11kV medium voltage from overhead power lines into stable 400V low voltage that household appliances, street lights and public service equipment can safely run on.
Core Design & Performance Features
All our civil oil type transformers adopt oil cooling (ONAN system) as standard. The internal insulating oil circulates naturally around the core and copper windings, absorbing extra heat during power conversion and releasing heat through the corrugated metal tank walls. There is no extra cooling fan installed, so the transformer runs quietly without loud noise to disturb residents living nearby. This simple cooling structure also has far fewer spare parts that can break down, which is perfect for remote villages with limited maintenance workers.
We use high-purity copper to make internal windings for all standard civil models. Copper has low resistance, so it wastes much less electricity and generates less heat when power passes through. For our best-selling 75kVA civil transformer, no-load loss is only 0.18kW and full load loss sits at 1.25kW, far more energy-saving than old aluminum-wound transformers you can find on local markets. The vector group is Dyn11, which balances three-phase electricity evenly and avoids unstable voltage caused by uneven household power use in residential areas.
Common Civil Application Scenarios
These oil type transformers are widely used in all kinds of civil power supply projects around the world:
- Rural village civil grid reconstruction in Africa and Southeast Asia
- New residential community small substations and temporary construction camps
- Town road lighting, highway street lamp power supply
- Small agricultural irrigation stations and rural farm public power
- Mini off-grid solar power stations supplying civil households
- Remote small town public facilities including schools and clinics
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