Step-Up Step-Down Oil-Immersed Distribution Transformer

Product Introduction

A Step-Up Step-Down Oil-Immersed Distribution Transformer is designed to efficiently convert electrical energy between high and low voltage levels in power transmission and distribution systems. Engineered for stable performance, long service life, and superior cooling efficiency, this transformer is widely used in industrial, commercial, and utility networks.

How Does an Oil-Immersed Distribution Transformer Work?

An oil-immersed distribution transformer is a crucial component in power distribution systems, responsible for stepping down high-voltage electricity from the transmission network to a lower voltage suitable for residential, commercial, and industrial use. The key to the transformer's operation lies in its oil-filled design, which serves two primary functions: insulation and cooling.

Insulation Provided by the Oil

The transformer's core and windings are completely submerged in a specialized insulating oil, which acts as a highly effective insulator. This oil-based insulation system prevents electrical arcing and short circuits within the transformer, ensuring the safe and efficient transfer of power. The oil's high dielectric strength and excellent thermal properties make it an ideal choice for this application.

Cooling Mechanism

The insulating oil not only insulates the transformer's internal components but also plays a crucial role in dissipating the heat generated during operation. As the transformer's core and windings carry the electrical current, they generate heat due to electrical resistance. The oil bathes these components, absorbing and effectively distributing the heat throughout the transformer's structure.

The heated oil then circulates through the transformer, transferring the heat to the outer steel enclosure, where it can be dissipated into the surrounding environment. This continuous cooling process ensures that the transformer operates within its safe temperature range, preventing overheating and extending its service life.

The design of the oil-immersed distribution transformer is engineered to maximize the efficiency of this cooling mechanism. The transformer's internal structure, including the placement of the windings and the oil flow paths, is carefully optimized to ensure optimal heat dissipation.

Key Features

• Dual Functionality: Supports both step-up and step-down voltage transformation.

• Oil-Immersed Design: Ensures excellent insulation, heat dissipation, and extended lifespan.

• High Efficiency: Low loss, low noise, and superior voltage regulation.

• Reliable Cooling: Uses ONAN (Oil Natural Air Natural) system for continuous temperature control.

• Durable Construction: Designed for stable performance under harsh environmental conditions.

• Customizable Ratings: Available in multiple capacities and voltages to meet different application requirements.
  
  
  
  

Product Details

Trade Capacity

International Commercial Terms(Incoterms):

FOB, CFR, CIF, FAS, DAP, CIP, CPT, FCA, EXW

Terms of Payment:

LC, T/T, D/P, PayPal, Western Union, Small-amount payment, Money Gram

FAQ

Q1: What is a step-up step-down oil-immersed distribution transformer?

A: It is a transformer designed to either increase (step-up) or decrease (step-down) voltage levels in power distribution systems.
The transformer uses insulating oil for cooling and insulation, ensuring stable and safe operation in various environments.

Q2: Can this transformer operate as both step-up and step-down?

A: Yes. The winding connections can be configured according to the user’s requirement—either to step up the voltage
(e.g., generator output) or step it down for distribution to end users.

Q3: What is the operating voltage range?

A: Standard models are available in 6kV, 10kV, and 11kV ratings. Custom voltage levels can be designed based on
your local grid standards and project needs.

Q4: How is the transformer shipped and packaged?

A: Each unit is securely packed in a strong wooden case to protect against vibration, moisture, and impact during transportation.
Export shipments are typically dispatched from Qingdao, Shanghai, or Lianyungang ports.

Q5: What are the common applications of this transformer?

A: It is widely used in power plants, substations, renewable energy projects, manufacturing facilities, public utilities,
and commercial buildings for stable and efficient power supply.

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