10kV Three-Dimensional Wound-Core Distribution

1. Product Overview

The 10kV three-dimensional wound-core distribution transformer is a new-generation energy-saving power distribution equipment optimized and upgraded on the basis of traditional laminated core transformers. It adopts an integral three-dimensional triangular wound core structure, which abandons the traditional planar stacked core design. The whole core is wound continuously with grain-oriented silicon steel sheets without cutting and overlapping gaps, forming a fully symmetrical three-phase magnetic circuit structure.

This product is mainly applicable to 10kV/0.4kV 50Hz AC power distribution systems. Compared with conventional distribution transformers, it solves the problems of unbalanced three-phase magnetic circuit, high no-load loss and large operation noise of traditional products. With compact structure, stable operation and excellent energy-saving performance, it has become the mainstream upgrading product for urban and rural power grid renovation, industrial power distribution and new energy power supply supporting projects, and fully complies with national and IEC international power equipment standards.

2. Main Product Parameters

The core technical parameters of the 10kV three-dimensional wound-core distribution transformer are standardized and customized, covering common capacity specifications for civil and industrial power distribution. The key performance and structural parameters are shown in the table below:

3. Product Core Features

3.1 Excellent Energy-Saving Performance

The continuous integral wound core eliminates air gaps and magnetic leakage in the magnetic circuit. The magnetic path completely fits the grain orientation of silicon steel sheets, which greatly reduces no-load loss and no-load current. The actual operation data shows that the no-load loss is reduced by 20% to 30% compared with traditional laminated core transformers of the same capacity, and the energy-saving effect is prominent in long-term continuous operation, which can effectively reduce the daily operation power consumption of the power grid.

3.2 Stable and Balanced Operation

The three-dimensional triangular symmetrical structure ensures consistent magnetic circuit length and uniform flux distribution of the three phases. The three-phase current imbalance is controlled within 1%, which avoids the overheating and power consumption increase caused by three-phase imbalance. It can adapt to complex load fluctuation scenarios and maintain stable output voltage, effectively improving the power supply quality of the terminal power grid.

3.3 Low Noise and Environmental Protection

The seamless integral core structure avoids the vibration and noise generated by the lamination gap of traditional transformers. The overall operation noise is far lower than the national standard, and there is no harsh electromagnetic noise during operation. The oil-immersed fully sealed structure prevents insulating oil leakage, no pollution to the surrounding environment, and meets the environmental protection requirements of urban residential areas and scenic power distribution sites.

3.4 Compact Structure and High Reliability

The three-dimensional wound core design optimizes the overall structural layout, reduces the overall volume and weight by about 15% compared with traditional products of the same specification, saving installation space and civil engineering costs. The whole core is integrally formed without loose parts, with strong seismic resistance and mechanical stability. It is not easy to be affected by external vibration and temperature changes, and the failure rate in actual operation is extremely low.

3.5 Wide Adaptability

The product can be customized into oil-immersed sealed type and dry-type according to different usage environments. It can operate stably in high temperature, high humidity, dust and other harsh environments, with strong environmental adaptability and no special requirements for conventional installation conditions.

4. Application Scenarios

With its high efficiency, stability and low noise advantages, this series of transformers covers almost all 10kV terminal power distribution scenarios, and the main application fields are as follows:

4.1 Urban and Rural Power Grid Renovation

It is the preferred equipment for upgrading old urban and rural power grids, replacing traditional high-loss transformers, effectively reducing grid operation energy consumption, improving power supply efficiency, and solving the problems of unstable voltage and high line loss in old power distribution areas.

4.2 Residential and Commercial Supporting Projects

Widely used in high-rise residential communities, commercial plazas, shopping malls, hotels and office buildings. The low-noise and environmentally friendly design avoids noise interference to residents and office personnel, and the stable power supply performance ensures the normal operation of household electricity, commercial equipment and building supporting facilities.

4.3 Industrial Park and Factory Power Distribution

Suitable for power distribution of manufacturing factories, industrial parks, logistics parks and mining enterprises. It can adapt to industrial load characteristics such as large load fluctuation and long-term continuous operation, reduce enterprise power consumption costs, and provide stable and reliable power guarantee for industrial production equipment.

4.4 New Energy Power Distribution System

Matched with distributed photovoltaic power stations, small wind power prefabricated substations and energy storage power supply systems. It can efficiently convert and transmit new energy power, adapt to the intermittent power output characteristics of new energy, and improve the utilization rate of new energy power generation.

4.5 Public Infrastructure Projects

It is widely used in power supply supporting of hospitals, schools, urban roads, parks, railway transit and other public facilities. The high-reliability operation performance ensures the continuity and stability of public power supply, avoiding power supply failure affecting public service operation.

5. Product Maintenance and After-Sales Service

5.1 Daily Maintenance Guidelines

This series of transformers features low maintenance and long service life, and conventional daily maintenance is simple and convenient. Users only need to conduct regular visual inspection and routine testing. It is recommended to check the operation status every 3 months, including observing whether the transformer has oil leakage, abnormal noise and overheating; regularly test the insulation resistance, winding temperature and voltage and current operation data to ensure the operation parameters are within the standard range.

For oil-immersed products, conduct oil quality sampling detection every 2 years to check the insulation performance of insulating oil; for dry-type products, regularly clean the surface dust of the winding and core to avoid dust accumulation affecting heat dissipation. In harsh operating environments, the maintenance cycle can be appropriately shortened according to the on-site conditions.

5.2 Fault Handling Instructions

The product has perfect over-current, over-voltage and over-temperature protection functions. In case of abnormal tripping, abnormal noise and local overheating during operation, the user should first cut off the power supply for inspection, stop the equipment operation, and contact the after-sales team in time. It is forbidden to disassemble and repair the equipment without professional guidance, so as to avoid equipment damage and safety accidents caused by non-standard operation.

5.3 After-Sales Service Guarantee

We provide comprehensive full-cycle after-sales support for all products. The whole machine enjoys a 3-year free warranty, and the core winding and core structure enjoy a 10-year quality guarantee. During the warranty period, any quality problem caused by product manufacturing will be repaired and replaced free of charge, with no maintenance cost for users.

We have a professional technical service team, providing 24-hour online technical consultation and fault response service. For on-site equipment faults, the regional after-sales engineers will arrive at the site within 24 hours (domestic conventional areas) to complete fault maintenance and equipment debugging. In addition, we provide free installation guidance, operation training and regular after-sales return visit services to help users standardize equipment operation and management and ensure long-term stable operation of the transformer.