250KVA 20KV Oil-immersed transformer Pure copper

250 kVA, 20 kV oil-immersed transformer in the 20KV Distribution Transformer series. Copper-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.

250kVA、20kV 油浸式变压器，归属20KV配电变压器系列。标注铜绕组配置。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

 

250KVA 20KV Pure Copper Oil-immersed Transformer: Stable Power Transmission and Distribution Equipment for Industrial Use

 

Currently, the power equipment market generally suffers from industry pain points such as high core losses, aluminum-added winding materials, and excessive temperature rise under high-voltage conditions. Many purchasers frequently encounter problems with unstable equipment loads and persistently high long-term maintenance costs. To address these issues, our company has launched the 250KVA 20KV Pure copper Oil Immersed Transformer, which leverages all-copper winding technology and standardized insulation structure to optimize power supply adaptability. This equipment is adaptable to various scenarios including industrial and mining plants, photovoltaic power stations, and municipal power distribution. Used in conjunction with a Box-Type Substation and High And Low Voltage Switchgear, it can stably handle 20KV high-voltage power conversion. With an Electric Power Converter, it achieves voltage regulation. Compared to ordinary aluminum-core equipment, it exhibits reduced long-term operating losses. It is suitable for Combined Photovoltaic Substations for continuous outdoor operation and can also be used in conjunction with Dry-Type Transformers to meet the high and low voltage power supply needs of factories, significantly reducing downtime for maintenance and extending the service life of the entire power distribution system. The product is primarily used in factory self-provided power stations, centralized photovoltaic power distribution networks, and rural municipal renovation projects, providing continuous and stable power output for production equipment and Energy Storage facilities. Pure copper windings ensure conductivity efficiency, and the oil-immersed heat dissipation structure is suitable for high-power, long-term loads, balancing safety and economy.

 

Product Features

All-Pure Copper Winding Structure: The 250KVA 20KV Pure copper oil-impregnated transformer is wound with high-purity copper, offering excellent conductivity. Its no-load and load losses are lower than industry standards, making it suitable for high-power continuous power supply scenarios. Compared to aluminum-core equipment of the same specifications, it offers significant long-term cost advantages in terms of power loss.

Compatible with Complete Power Distribution Equipment: It can flexibly connect to Box Type Substations and High and Low Voltage Switchgears. It can also be used with an Electric Power Converter to adjust the output voltage, adapting to Combined Photovoltaic Substations for grid-connected photovoltaic applications. Combined with Dry Type Transformers, it can build zoned power supply systems, adapting to various types of power engineering solutions.

 

Practical Tips

1.Before commissioning, verify the insulating oil level and sealing structure to prevent leakage during outdoor operations, especially when using Combined Photovoltaic Substations in open-air environments. Regularly check the anti-corrosion coating of the enclosure.

2.Distinguishing between Oil-Immersed Transformers and Dry-Type Transformers in terms of maintenance logic: Oil-immersed transformers require semi-annual sampling and testing of the insulating oil performance, while dry-type equipment focuses on duct dust removal. The two types of equipment cannot be maintained using the same standards.

 

FAQ (Frequently Asked Questions)

Q: Can this 250KVA 20KV Pure copper Oil-Immersed Transformer be used in a complete photovoltaic power station?

A: Yes. The equipment can be directly used with Combined Photovoltaic Substations and an Electric Power Converter to complete photovoltaic power voltage stabilization and conversion, suitable for long-term uninterrupted outdoor operation.

 

Q: What are the key differences in maintenance between oil-immersed equipment and Dry-Type Transformers?

A: Oil-immersed transformers focus on monitoring insulating oil quality and enclosure leakage; Dry-type transformers primarily focus on cleaning the cooling ducts and monitoring winding temperature. The maintenance cycles and testing items for the two are not interchangeable.

 

Q: Is guidance provided for the integration with Box-Type Substations and High and Low Voltage Switchgear after purchase?

A: A complete set of wiring diagrams is included with the shipment. Technical personnel can provide remote online guidance for the installation of the complete equipment, adapting to the needs of a complete power distribution station.

 

Q: How long is the product's after-sales warranty period, and how is winding failure handled?

A: The standard warranty for the entire unit is one year. For non-human-caused defects in the pure copper windings, replacement parts and on-site repair services are available. We have cooperative after-sales service outlets in many parts of the country.