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High-Quality Three-Phase Oil-Immersed Transformer from China Suppliers | High-Quality Factory Products Supplier, Companies

Introducing our high-quality oil-immersed transformers, expertly manufactured in China. These transformers utilize insulating oil for both insulation and cooling, operating on the fundamental principle of electromagnetic induction to efficiently convert voltage levels. Comprising an iron core, windings, and a sturdy oil tank, our transformers are designed to be compact, cost-effective, and highly resistant to harsh weather conditions, all while maintaining low noise levels, As a leading supplier and factory of oil-immersed transformers, we cater to the needs of power systems and industrial enterprises by providing reliable solutions that reduce high voltage to the low voltage necessary for various applications. Trust our products to deliver exceptional performance and durability for your energy requirements

Product Description

Structural Composition

The main components of an oil-immersed transformer include:

Core: Made of stacked silicon steel sheets, it forms the magnetic circuit.
Windings: Includes primary (high-voltage) and secondary (low-voltage) windings.
Tank: A sealed, welded steel container for oil and internal components.
Oil Consolidator: Accommodates oil expansion due to temperature changes.
Radiator: Efficiently dissipates heat from the transformer tank.
Insulating Bushings: Protects leads and connects to external circuits.
Tap Switch: Adjusts the output voltage, usually located inside the tank.
Auxiliaries: Breather, explosion-proof conduit, gas relay, and thermometer.
Operating Principle
  • Based on the fundamental principle of electromagnetic induction.
  • Primary winding AC power generates an alternating magnetic field through the core.
  • This field induces an electromotive force in the secondary winding, stepping voltage up or down.
Core Advantages
🌡️ Excellent Heat Dissipation

Insulating oil acts as a high-efficiency cooling medium.

🔇 Low Noise Operation

The oil acts as a buffer, significantly reducing mechanical vibration noise.

💰 Economical & Durable

Low manufacturing costs coupled with a long, reliable service life.

🌦️ Weather Resistance

Robust design suitable for both indoor and outdoor harsh environments.

Application Areas
Power Systems

Used for distribution to reduce high voltage for end-user requirements.

🏭 Industrial Enterprises

Providing steady power for industrial complexes and mining operations.

🔬 Research Centers

Essential for high-voltage testing and laboratory power equipment.

Product Display
Three-phase oil-immersed transformer unit
Three-phase oil-immersed transformer detail view
High-voltage oil-immersed transformer
Oil-immersed distribution transformer
Frequently Asked Questions
QWhat is an oil-immersed transformer and how does it work?
An oil-immersed transformer is a power device where the core and windings are submerged in insulating oil. It works via electromagnetic induction, where AC current in the primary winding creates a magnetic field that induces voltage in the secondary winding.
QWhat are the main components of this transformer?
Key components include the silicon steel core, primary and secondary windings, a sealed steel tank, an oil conservator, radiator, insulating bushings, and a tap switch for voltage adjustment.
QWhy choose oil-immersed over dry-type transformers?
Oil-immersed types offer better heat dissipation, lower noise, lower manufacturing costs, and are generally more durable for outdoor installations compared to dry-type versions.
QWhere are these transformers typically installed?
They are widely used in public power distribution networks, industrial manufacturing sites, mining operations, and high-voltage research facilities.
QWhat is the purpose of the oil conservator?
The oil conservator (or consolidator) handles the expansion and contraction of the insulating oil as temperature fluctuates, ensuring the tank remains full and protected from moisture.
QAre they suitable for outdoor use?
Yes, they are designed with a high level of weather resistance. The sealed tank protects internal components from rain, dust, and varying environmental conditions.

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