a core step-down equipment for 20kV Oil-Immersed Power Transformer

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a core step-down equipment for 20kV Oil-Immersed Power Transformer

 

As a core step-down equipment for medium-voltage power grids, the 20kV Oil-Immersed Power Transformer is a high-reliability power distribution device specially designed for voltage conversion and power transmission in 20kV power systems. It takes high-quality mineral oil as the insulation and cooling medium, combined with scientific structural design and high-performance core materials, ensuring stable and efficient step-down operation, and serving as a key link connecting high-voltage power grids and low-voltage distribution networks.
Rated at 20kV voltage level, the transformer adopts a mature and reliable oil-immersed structure, with optional ONAN (Oil Natural Air Natural) and ONAF (Oil Natural Air Forced) cooling modes. It has outstanding advantages such as strong overload capacity, excellent heat dissipation performance, stable operation and strong environmental adaptability, which can adapt to long-term outdoor operation in harsh environments such as high temperature, low temperature, heavy rain and heavy dust. Equipped with complete protection devices, including temperature monitoring, oil level monitoring, leakage alarm and pressure relief devices, it effectively avoids potential safety hazards and ensures the safe and continuous operation of the equipment.

Product introduction

 

20kV Class Oil-Immersed Power Transformer is core equipment for medium-low voltage distribution networks. Main models: S11, S13, S20 . are widely used in all kinds of residential, It adopts fully sealed oil-immersed structure with transformer oil as insulation & cooling medium, suitable for outdoor, industrial, commercial, grid renovation. Complies with IEC 60076, GB/T 1094.

 

Applications

 

  • Urban Grids, Industrial Parks, and Commercial Centers
  • High-Rise Buildings, Hospitals, and Schools
  • Large-scale Data Centers and Telecommunication Hubs
  • Metros, Airports, and Underground Tunnels
  • Chemical Plants, Metallurgy, Mining, and Offshore Platforms
Dry Type Transformer Manufacturer China

Our Advantages

 

Excellent Step-Down Performance: As a core step-down equipment for medium-voltage power grids, it can efficiently convert 20kV high voltage into 10kV or 0.4kV low voltage, with stable voltage conversion, small voltage fluctuation and high power supply quality, ensuring reliable power supply for low-voltage distribution networks.

High Efficiency & Low Noise: Adopts high-grade low-loss oriented silicon steel sheet core and optimized winding structure, greatly reducing no-load loss and load loss, meeting national high energy efficiency standards, and reducing long-term operation costs.

Stable Operation & Strong Adaptability: Takes high-quality mineral oil as insulation and cooling medium, with mature and reliable oil-immersed structure, strong overload capacity and excellent heat dissipation performance, suitable for long-term outdoor operation in harsh environments such as high temperature, low temperature, heavy rain and heavy dust.
Reliable Safety Protection: Equipped with complete protection devices, including temperature monitoring, oil level monitoring, oil leakage alarm and pressure relief devices, effectively avoiding safety hazards such as fire and oil leakage, and ensuring safe and continuous operation.
Cost-Effective & High Practicality: Compared with dry-type step-down equipment, it has lower unit cost, larger capacity range, lower maintenance cost, and is more suitable for large-scale medium-voltage power grid step-down and power distribution scenarios.

 

Transformer Production & Testing Equipment

FAQ

 

Q1: What is a 20kV oil-immersed power transformer?

A: It is a core step-down power distribution equipment, using insulating oil for cooling and insulation, mainly converting 20kV high voltage into 10kV or 0.4kV low voltage for grid and industrial power supply.

Q2: What cooling methods are available?

A: ONAN (Oil Natural Air Natural), ONAF (Oil Natural Air Forced).

Q3: Is it suitable for outdoor installation?

A: Yes. The oil-immersed structure features good heat dissipation, strong environmental adaptability, rainproof and anti-aging performance, ideal for long-term outdoor operation.

 

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