A high voltage transformer series is a core component of power transmission and distribution systems. It converts high voltage electricity to lower usable voltage, or boosts voltage for long-distance transmission. Widely deployed in utility grids, solar and wind power stations, factories and commercial substations, these transformers guarantee safe and stable power supply.

1. What Is a High Voltage Transformer Series?

The high voltage transformer series covers multiple specifications and types, including oil-immersed transformers and dry-type transformers. It uses electromagnetic induction to transform AC voltage while maintaining power transfer.

• Step-up transformers: Raise voltage for long-distance power transmission to reduce energy loss

• Step-down transformers: Lower high grid voltage to 400V low voltage for end users

2. Main Types & Features

Oil Immersed High Voltage TransformerIt uses mineral oil as insulation and cooling medium. Low cost, excellent heat dissipation, large capacity range. Suitable for outdoor substations, solar farms and industrial areas.

Dry Type High Voltage TransformerInsulated with epoxy resin, no flammable oil. Fireproof, pollution-resistant, low noise. Ideal for indoor substations, shopping malls, hospitals and densely populated areas.

3. Key Advantages

• Stable voltage conversion, low no-load loss

• High insulation performance, strong overload resistance

• Multiple protection options: temperature monitoring, overcurrent protection

• Long service life, mature and reliable technology

• Customizable capacity, voltage ratio and connection group

4. Typical Applications

• Solar and wind power plants (step-up transformers)

• Urban power distribution substations

• Heavy industrial factories, mining projects

• Commercial complex, hospital and data center power supply

• Rural power grid renovation projects

5. Selection Guide

1. Confirm rated capacity, primary and secondary voltage level

2. Choose oil-immersed or dry type according to installation environment (indoor/outdoor)

3. Check load type, peak load and overload requirement

4. Confirm cooling method, protection grade and local grid standard

5. Reserve proper capacity margin for future expansion

6. Get a Quote

We supply complete high voltage transformer series with customized parameters for power distribution and renewable energy projects. Contact our team for datasheets, technical drawing and bulk price.