35kV Three Phase Oil Immersed Power Transformer

ZTelec China 35kV Three Phase Oil-Immersed Power Transformer

A 35kV three phase oil-immersed power transformer is a core component in medium-voltage transmission and distribution networks.
It converts 35,000 volts of electrical energy into lower voltage levels for industrial, commercial, and public power use.

Manufactured by ZTelec China, this transformer adopts high-quality silicon steel, low-loss magnetic core, and oil-paper insulation system, ensuring long lifespan, low noise, and excellent reliability even under heavy load conditions.

Main Features and Advantages

High Efficiency & Low Loss:
Designed with cold-rolled grain-oriented silicon steel to minimize no-load and load losses, improving energy efficiency.Superior Insulation & Safety:
Uses high-quality transformer oil and oil-paper insulation system with excellent dielectric strength.Reliable Cooling System:
Equipped with ONAN/ONAF cooling modes, ensuring consistent temperature control during continuous operation.Strong Mechanical Performance:
The winding and core are tightly clamped to resist vibration and short-circuit forces.Customized Design:
Voltage ratios, impedance, and protection levels can be customized to meet specific project needs.Global Standards Compliance:
Fully meets IEC 60076, GB 1094, and ANSI C57 international standards.

Application Scenarios

ZTelec 35kV three-phase oil-immersed power transformers are widely used in:

⚙️ Power substations and grid interconnection systems

🏭 Heavy industries – steel, petrochemical, mining, and manufacturing

🌞 Renewable energy systems – wind and solar integration

🚉 Railway traction power systems

🏙️ Urban and rural distribution networks

They deliver stable voltage regulation, high efficiency, and long service life, even under harsh environmental conditions.

35kV Three Phase Oil-Immersed Power Transformer Technical Parameters

The following table presents the standard technical specifications of ZTelec China 35kV oil-immersed transformers. Custom designs are available upon request.

*ZTelec also offers design modifications for high-altitude, marine, or tropical environments.*