400KVA 20KV Oil-immersed transformer Pure aluminum

400 kVA, 20 kV oil-immersed transformer in the 20KV Distribution Transformer series. Aluminium-winding option listed. Confirm capacity, voltage ratio, winding and insulation materials, tap arrangement, losses, impedance, frequency, environmental conditions, testing and applicable standards against the project specification before ordering.

400kVA、20kV 油浸式变压器，归属20KV配电变压器系列。标注铝绕组配置。下单前应结合项目技术文件确认容量、电压比、绕组与绝缘材料、调压方式、损耗、阻抗、频率、使用环境、试验范围及适用标准。

Manufacturer-supplied product information: Jiangsu Huayu Electric Co., Ltd.

Product Details

400KVA 20KV Pure Aluminum Winding Oil-Immersed Distribution Transformer for Stable Industrial Power Output

 

Currently, the power supply industry commonly faces problems such as high core losses and difficulty in identifying the quality of winding materials. Many substandard transformers are prone to excessive temperature rise and unstable power supply during long-term operation. When assembling box-type substations and high-and-low voltage switchgear systems, many purchasers often experience frequent system shutdowns for maintenance due to insufficient transformer current-carrying capacity. We offer the 400KVA 20KV Pure aluminum Oil-immersed Transformer, featuring an optimized internal structure with all-aluminum windings, suitable for various outdoor and industrial Power Distribution Solutions. After being put into use, the equipment can effectively reduce long-term operation and maintenance costs. It can be paired with a Dry Type Transformer to form a complementary power supply system for high and low loads. It can also be matched with an Electric Power Converter and Combined Photovoltaic Substations to complete photovoltaic Energy Storage transformation and transmission. It is suitable for various scenarios such as factory grid expansion, park photovoltaic power stations, and municipal temporary power distribution. Its lightweight winding structure controls the overall weight of the unit, significantly reducing foundation installation and construction costs. It provides a stable standard voltage output to ensure the continuous operation of the entire power link.

 

This 400KVA 20KV Pure aluminum Oil-immersed Transformer uses high-purity aluminum windings wound in one piece. The insulation layer uses oil-resistant and flame-retardant materials, making it suitable for 20kV high-voltage input conditions and the integration needs of complete power distribution projects. Compared to copper winding equipment, the pure aluminum material significantly reduces procurement costs. The evenly distributed heat dissipation oil circuit avoids localized high temperatures, allowing it to withstand continuous full-load operation for extended periods. The equipment can be installed independently or embedded within a Box Type Substation, forming a complete power distribution room in conjunction with a High And Low Voltage Switchgear. In photovoltaic projects, it works with an Electric Power Converter to adjust current parameters and connect to Combined Photovoltaic Substations for stable grid connection of solar energy. It can also be paired with indoor Dry Type Transformers to differentiate between outdoor heavy-load and indoor light-load power consumption areas, covering mainstream procurement scenarios such as industrial and mining enterprises, new energy power plants, and urban power grid upgrades, balancing initial procurement cost-effectiveness with long-term operational reliability.

 

Product Features

Pure Aluminum Low-Loss Winding: High-purity aluminum core winding reduces no-load losses, adapting to long-term uninterrupted power supply and significantly reducing overall energy consumption.

Multi-Equipment Compatibility: Seamlessly connects to Box Type Substations, Combined Photovoltaic Substations, and other complete power equipment systems, simplifying project integration.

 

Usage Tips

Regularly check the insulating oil level. Insufficient level will weaken the heat dissipation performance of the Oil-immersed Transformer. Perform oil quality sampling and testing every six months.

 

FAQ (Frequently Asked Questions)

Q: Can this 400KVA 20KV Pure aluminum Oil-immersed Transformer be used with a photovoltaic power station?

A: Yes, the equipment's voltage parameters are adapted to the photovoltaic grid-connection requirements. After adjusting the output current with an Electric Power Converter, it can be directly connected to Combined Photovoltaic Substations to complete photovoltaic power transformation and transmission.

 

Q: What are the differences in daily maintenance between pure aluminum winding equipment and Dry Type Transformers?

A: The core maintenance focus for Oil-immersed Transformers is the insulating oil, requiring regular checks for leaks and oil quality. Dry Type Transformers have no oil circuit structure; only duct dust cleaning is needed. Maintenance cycles for both can be planned concurrently.

 

Q: What should I do if the equipment experiences voltage instability, and what is the after-sales warranty period?

A: First, check if the high and low voltage switchgear terminals are loose, then confirm the internal heat dissipation environment of the box-type substation; the whole unit comes with a three-year warranty, and non-human-caused parts will be replaced free of charge, with technical personnel providing remote guidance for troubleshooting.