Energy Efficiency Two-Stage Oil-Immersed Transformer

1. Product Overview

The energy efficiency two-stage oil-immersed transformer is an upgraded low-loss power distribution transformer developed in compliance with national and international energy efficiency standards, specially optimized for medium and low voltage power distribution scenarios. Different from ordinary single-stage energy-saving transformers, this product adopts a two-stage energy efficiency hierarchical design, with core electromagnetic parameters and overall structural performance reaching the second-level energy efficiency standard specified in GB20052-2020. It effectively solves the problems of high no-load loss, large operating noise and high long-term energy consumption of traditional oil-immersed transformers.

This series of transformers takes mineral insulating oil or synthetic ester environmental protection oil as the cooling and insulating medium, adopts mature ONAN cooling mode, and integrates optimized iron core structure and high-precision winding technology. It features stable operation, strong overload resistance and excellent environmental adaptability. It is a mainstream energy-saving and environmentally friendly power transmission and distribution equipment widely used in urban and rural power grids, industrial and mining enterprises, new energy power stations and other scenarios, which can significantly reduce the long-term operating energy consumption of the power system and create substantial economic benefits for users.

2. Product Technical Parameters

The core technical parameters of the two-stage energy efficiency oil-immersed transformer are standardized and serialized, covering multiple capacity specifications to meet the power demand of different application scenarios. The key parameters are shown in the table below:

3. Core Product Features

3.1 Excellent Energy-Saving Performance

Adopting two-stage energy efficiency optimization design, the product strictly complies with the latest national energy efficiency standards. Through the improvement of core lamination process and winding layout optimization, the no-load loss and load loss are effectively controlled. Compared with ordinary oil-immersed transformers, the comprehensive energy consumption is reduced by more than 18% in long-term operation, which greatly reduces the operating cost of power grid and industrial power consumption, and has significant energy-saving and emission reduction effects.

3.2 Low Noise and Stable Operation

The iron core adopts high-quality cold-rolled oriented silicon steel sheet and full-angle seamless lapping process, which effectively suppresses electromagnetic vibration and noise radiation. The overall noise level is 20% lower than the industry standard conventional models. The product has strong short-circuit resistance and stable electromagnetic performance, no obvious temperature rise and abnormal vibration under long-term full-load and intermittent overload operation, and can adapt to continuous all-weather operation.

3.3 High Safety and Environmental Protection

The whole machine adopts reinforced insulation structure, with strong dielectric strength and low partial discharge rate. The optional synthetic ester insulating oil is non-toxic and biodegradable, which avoids environmental pollution caused by oil leakage. The sealed box body design effectively prevents dust, moisture and corrosive substances from entering, adapts to complex outdoor and industrial environments, and reduces the risk of equipment failure caused by external interference.

3.4 Low Maintenance and Long Service Life

The structural design is simple and reliable, with fewer vulnerable parts. The optimized winding and iron core structure avoids local overheating and aging. Under standard operating conditions, the equipment can operate stably for more than 30 years. Compared with high-level energy efficiency transformers, it has lower manufacturing and maintenance costs, and higher cost performance in long-term application.

4. Application Scenarios

4.1 Urban and Rural Power Distribution Network

It is suitable for community power supply, urban street grid transformation, rural power grid upgrading and other scenarios. The low energy consumption and low noise characteristics can effectively reduce the operating loss of the public power grid, improve the power supply quality of residential areas, and meet the long-term stable power demand of urban and rural residents.

4.2 Industrial and Mining Enterprises

Widely used in factories, mines, manufacturing workshops and other industrial power consumption scenarios. It can adapt to unstable load changes in industrial production, withstand frequent start-stop and overload operation, ensure stable power supply for industrial equipment, and reduce enterprise power consumption costs for a long time.

4.3 New Energy Power Generation Projects

Matched with solar power stations, wind farms and other new energy power generation equipment, used for voltage conversion and grid connection of new energy power. The stable electromagnetic performance can adapt to the intermittent and fluctuating power output characteristics of new energy, improve the grid connection efficiency of new energy power, and support the safe and stable operation of new energy power systems.