Class‑1 Energy‑Efficiency Oil‑Immersed Transformer Product Introduction

1. Product Overview

The Class‑1 Energy‑Efficiency Oil‑Immersed Transformer is a high-performance power distribution transformer compliant with international first-class energy efficiency standards, widely adopted in modern power grid construction and industrial power supply systems. Adopting fully sealed oil-immersed structure and optimized electromagnetic design, this product eliminates the common energy consumption defects of traditional ordinary transformers. It is equipped with high-permeability cold-rolled silicon steel sheet core and high-purity copper winding, paired with stepped-lap lamination technology and enhanced insulation structure, effectively reducing no-load loss and load loss during long-term operation.

Different from secondary energy efficiency products, this first-class energy efficiency model achieves ultra-low energy consumption indicators under full working conditions, with stable heat dissipation performance and strong environmental adaptability. The overall structure is robust and durable, free from frequent maintenance troubles caused by oil leakage and insulation aging. It can operate continuously and stably in various complex working environments, serving as the core energy-saving power transmission and distribution equipment for urban and rural power grid upgrading, industrial production, new energy power generation and other scenarios.

2. Main Product Technical Parameters

The product covers multiple conventional capacity specifications, compatible with medium-voltage power distribution systems, and its core technical parameters meet national and international industry standards. The key parameters are shown in the table below:

3. Core Product Features

3.1 Ultra-high Energy Saving Performance

This product strictly complies with Class 1 energy efficiency standards, adopting optimized core electromagnetic design and high-quality magnetic conductive materials. The no-load loss and load loss are significantly reduced compared with ordinary transformers, which can effectively reduce long-term operating energy consumption and power operation costs for users. For power enterprises and large industrial users with long-term continuous power consumption, the energy-saving benefit is very obvious, and it can effectively reduce carbon emissions, meeting green power development requirements.

3.2 Stable and Reliable Operation

The transformer adopts fully sealed corrugated oil tank structure, which can effectively isolate external moisture, dust and corrosive gases, avoid insulating oil deterioration and internal component aging. The high-purity copper winding has good electrical conductivity and strong overload resistance, and the enhanced insulation system can withstand instantaneous voltage fluctuation and short-circuit impact. The overall operation is stable, with extremely low failure rate and strong anti-interference ability.

3.3 Low Noise and Environmental Protection

Through optimized core lamination process and structural damping design, the mechanical vibration and electromagnetic noise during operation are greatly reduced. The operating noise is far lower than the industry standard, which will not cause noise pollution to the surrounding environment. In addition, the insulating oil is non-toxic and environmentally friendly, with no leakage pollution risk, meeting urban environmental protection and green construction standards.

3.4 Strong Environmental Adaptability

The product has excellent high and low temperature resistance, and can operate stably in the temperature range of -40℃ to +45℃. The sealed structure is suitable for humid, dusty, coastal salt fog and other harsh environments, not easy to rust and damage. It does not need special environmental transformation during installation, with strong scene compatibility and flexible deployment.

3.5 Low Long-term Maintenance Cost

Thanks to the fully sealed design, the internal insulating oil does not need frequent replacement and filtration. The core and winding components have stable performance and long service life, avoiding frequent component replacement and equipment overhaul. Compared with traditional transformers, it greatly reduces daily maintenance workload and later operation and maintenance costs.

4. Application Scenarios

With its excellent energy-saving performance and stable operation capability, Class‑1 Energy‑Efficiency Oil‑Immersed Transformer is widely used in various fields with high requirements for power supply stability and energy conservation:

• Urban and Rural Power Grid Construction & Upgrading: It is the preferred equipment for new construction and renovation of urban distribution networks, rural power grids and community power supply systems, effectively improving power grid transmission efficiency and reducing grid operation energy consumption.

• Industrial Production Parks: Suitable for factory power supply, industrial park centralized power distribution, mining and petrochemical enterprises and other industrial scenarios with long-term high-load operation, helping industrial enterprises reduce power consumption costs.

• New Energy Power Generation Projects: Matched with wind power, photovoltaic power stations and other new energy power generation systems, used for power conversion and grid-connected power distribution, adapting to the fluctuating power supply characteristics of new energy sources.

• Public Infrastructure: Widely used in airports, subways, railway stations, hospitals, schools and government institutions, providing stable and low-energy power supply for public facilities.

• Commercial & Residential Complexes: Applicable to high-rise buildings, dense residential areas, commercial streets and other scenarios, meeting the stable power demand of daily life and commercial operation, with low noise and no environmental impact.

• Harbor & Field Engineering: Adaptable to outdoor harsh environments such as ports, docks and field construction sites, with strong corrosion resistance and stable outdoor operation performance.

5. Product Maintenance and After-sales Service

5.1 Daily Maintenance Guidelines

This transformer has low maintenance requirements, and regular simple inspection and maintenance can effectively extend the service life and ensure stable operation:

• Regular Appearance Inspection: Check the oil tank, welding seam and sealing parts every quarter to confirm no oil leakage, deformation and corrosion; clean the radiator surface dust and sundries to ensure smooth heat dissipation.

• Insulating Oil Detection: Conduct dielectric strength and water content test of insulating oil every 1-2 years. Replace the insulating oil in time if the test index exceeds the standard to maintain insulation performance.

• Operating Parameter Monitoring: Regularly check the operating temperature, load current and voltage of the transformer, avoid long-term overload operation and frequent voltage fluctuation, and record operating data for subsequent maintenance reference.

• Terminal Inspection: Check the tightness of wiring terminals regularly to prevent poor contact caused by loose screws, avoid heating and burning of terminals.

5.2 Precautions for Use

Avoid long-term overload and overvoltage operation of the equipment; do not disassemble the sealed structure privately to prevent external impurities from entering the equipment and affecting insulation and heat dissipation performance. In rainy and humid weather, strengthen equipment insulation detection to prevent flashover discharge accidents.

5.3 After-sales Service Guarantee

• Warranty Service: The product enjoys a 3-year full-machine warranty and lifelong technical maintenance service. During the warranty period, any quality failure caused by non-human factors will be repaired and replaced free of charge.

• Technical Support: Provide 24-hour online technical consultation service, respond to user equipment operation faults and technical questions in a timely manner, and provide professional operation guidance and maintenance solutions.

• On-site Service: For equipment faults that cannot be solved remotely, arrange professional after-sales engineers to provide on-site maintenance and debugging services according to regional conditions to ensure rapid recovery of equipment operation.

• Supporting Services: Provide free installation guidance, equipment commissioning and user operation training services, and deliver detailed product maintenance manuals and parameter documents.