S11 Oil Immersed Power Transformer

As a trusted China manufacturer and supplier, Comewill is committed to providing reliable and energy-efficient power equipment for you. Our S11 Oil Immersed Power Transformer is designed to deliver stable and efficient power conversion in urban power grids, rural electrification projects, industrial parks, and various complex power environments. With strong engineering capabilities from a professional factory in China, Comewill ensures every S11 Oil Immersed Power Transformer is produced with strict quality control and durable materials, offering dependable performance for long-term operation.

Built with advanced technology and precision engineering, the S11 Oil Immersed Power Transformer integrates optimized core structures and high-performance insulation systems to meet modern grid standards. As a quality transformer manufacturer in China, Comewill focuses on reducing energy loss while improving operational stability. Each transformer is carefully designed to balance high efficiency, environmental responsibility, and cost performance.

Features

Comewill’s transformers combine mature manufacturing technology with strict factory standards to provide dependable solutions for various power applications.

Voltage and Capacity

The voltage level generally covers 10–35/0.4kV, with capacity ranging from 30kVA to 3150kVA. Whether used for residential power distribution or industrial power supply, the S11 Oil Immersed Power Transformer can meet most distribution requirements.

Low Loss and Energy Efficiency

The core is made from high-quality cold-rolled silicon steel sheets, significantly reducing no-load loss and excitation current. This design helps improve overall energy efficiency and lowers long-term operating costs.

Quiet Operation

The iron core is firmly clamped and the internal structure is stable, resulting in very low operating noise. This makes the transformer suitable for installations in residential areas, commercial buildings, and public facilities.

Fully Sealed Structure

The sealed oil tank prevents transformer oil from contacting air, reducing oxidation and extending service life. The corrugated tank design allows elastic expansion and contraction to adapt to temperature changes.

Strong Short-Circuit Resistance

Advanced manufacturing processes improve mechanical strength and thermal stability, ensuring the equipment can withstand short-circuit impacts without deformation or damage.

Environmental Protection and Safety

The oil tank and oil storage components undergo strict pressure testing to prevent leakage during normal operation, meeting environmental protection and safety standards.

Efficient Cooling System

Transformer oil provides excellent thermal conductivity and helps dissipate heat through natural convection or forced circulation, ensuring stable temperature during operation.

Maintenance and Service Tips

Proper maintenance can significantly extend the service life of the S11 Oil Immersed Power Transformer and maintain stable performance.

Regularly check the oil level and oil quality to ensure the insulation oil remains clean and free from moisture. Periodic oil testing helps detect insulation aging early. It is also recommended to inspect the cooling system, bushings, and sealing components to prevent oil leakage or overheating.

Keeping the transformer environment clean and well ventilated can improve cooling efficiency. For long-term reliability, operators should also conduct routine inspections of electrical connections and protective devices. With proper care and maintenance, the S11 Oil Immersed Power Transformer made in China by Comewill factory can operate safely for many years while maintaining high efficiency.

Range Of Application

The Comewill S11 Oil Immersed Power Transformer is widely used in urban and rural power grid construction, distribution networks, and various power engineering projects. As a quality transformer supplier and factory in China, Comewill provides wholesale and customized solutions for infrastructure development.

Typical application scenarios include high-rise buildings, residential communities, government facilities, airports, metro systems, railway stations, and port terminals. It is also widely used in petrochemical plants, metallurgy, mining, and power generation industries, where reliable and safe power distribution is essential.

Technical Specifications

Note:

1. The load loss with two values in the table, the value on the left is applicable to the Dyn11 vector group, and the value on the right is applicable to the Yyn0 vector group.
2. The above data is subject to change due to technical improvement.