Three-phase ground-mounted transformer

Product Introduction

It uses a sealed corrugated tank structure, which effectively isolates external air and moisture, slows down the aging rate of the insulating oil, and ensures stable operation, low energy loss, and a long service life in long-term use. With balanced performance, reasonable pricing, and easy maintenance, this series is widely used in urban and rural power grids, industrial and mining enterprises, old distribution network renovation projects, as well as indoor and outdoor power distribution scenarios such as residential areas, factories, and small to medium-sized commercial facilities.

Technical parameters (customizable)

• Rated power: 10KVA-5000KVA, covering 18 common specifications from small to large, which can be flexibly selected based on the actual needs of users.

• Tap changer: off-circuit tap changer, which must operate when power is off, with simple operation, reliable contact, long service life, and low failure rate; on-load tap changer can be configured according to user needs for voltage regulation without power interruption in special cases.

• Cooling: ONAN (Oil Natural Air Natural) is an oil-immersed self-cooling mode, with stable heat dissipation performance, simple structure, low failure rate, suitable for conventional loads; ONAF (forced air cooling) can be selected as needed to increase load capacity by 20%–30%.

• Connection group: Dyn11 / Yyn0, Dyn11 is the main connection mode, featuring high short-circuit resistance, stable voltage waveform, and good compatibility, suitable for most industrial and civil power distribution scenarios; Yyn0 is optional for low-capacity civil scenarios.

• Energy efficiency: ultra-efficient energy saving

Main features

• Hermetic, maintenance-free, leak-proof: fully sealed corrugated tank design without oil conservator effectively isolates air and moisture, avoids aging and dampness of insulating oil, and requires no oil change or core lifting during normal operation, making it maintenance-free and leak-proof, significantly reducing subsequent operation and labor costs.

• Robust construction, strong short-circuit resistance: windings are wound with high-quality copper conductors, featuring a reasonable design and firm fixation. The iron core and windings are tightly coupled, effectively withstanding mechanical stresses caused by sudden short circuits, preventing winding deformation and core displacement, ensuring stable and reliable operation.

• Low noise, reliable operation: through optimized magnetic circuit design and high-quality core materials, operating noise is controlled at 50-58 dB(A), meeting national standard requirements. The operation is stable and reliable, with an annual failure rate of ≤0.5%, suitable for most noise-insensitive scenarios.

Application Scenarios

• Urban and rural power grids: widely used in rural power distribution, urban public power supply, as well as the modernization and upgrading of urban and rural power grids, effectively improving power supply efficiency, reducing grid losses, and ensuring stable power supply for residents and public facilities.

• Industrial and mining enterprises: suitable for small and medium-sized enterprises, mines, oil fields, chemical plants, and other industries, providing stable and efficient power supply for production equipment, while adapting to common loads and continuous working conditions.

• Substations, box-type substations: As the main equipment for power distribution, it can be used with box-type substations, suitable for underground substations, outdoor power distribution stations, and unattended power distribution points, ensuring stable operation and low maintenance costs.

About us

XindaTransformerCo., Ltd. is located at No. 38, Jingsan Street, Fenghuang Industrial Park, Dongchangfu District, Liaocheng City, Shandong Province, China. The company's registered capital is 150 million yuan, covering an area of approximately 186,667 square meters (280 mu). It has been recognized as a national high-tech enterprise, a demonstration enterprise for technological innovation in Shandong Province, an outstanding private technology enterprise in Shandong Province, a model base for the employment of disabled persons, a contract-abiding and trustworthy enterprise in Shandong Province, a municipal enterprise technology center in Liaocheng, an outstanding industrial enterprise in Dongchangfu District, a science and technology demonstration enterprise in Dongchangfu, and a key enterprise in Dongchangfu District.

The annual production capacity is 9,000 MVA. The total construction area of office buildings, research and development facilities, and standardized workshops is 53,000 square meters. Equipped with more than 470 sets of modern production equipment, the company has a production capacity of 10,000 MVA for transformers with voltages up to 220 kV, as well as additional distribution equipment systems. With qualifications in general energy contracting and a specialized technical construction team, Xinda is among the leading manufacturers of power transformers in China, excelling in research and development, production, and integrated engineering services.