2500kva 10kv 400v high standard Oil Immersed Transformer

2500kva 10kv 400v high standard Oil Immersed Transformer

1. Product Description

The 2500kVA 10kV 400V high standard oil immersed transformer is a heavy-duty, high-reliability three-phase distribution transformer designed for 10kV urban and industrial power grid systems. As a premium-grade oil-filled power transformation device, this high standard 10kV to 400V oil immersed transformer strictly follows IEC60076 and GB/T6451 international manufacturing standards, adopting upgraded energy-saving structure and precision manufacturing technology compared with conventional transformer products. It is specially developed for large-load, long-duration continuous power supply scenarios, capable of stably converting 10kV medium-voltage grid power into standard 400V low-voltage power for industrial and municipal terminal equipment.

Built with high-quality grain-oriented cold-rolled silicon steel core and high-purity oxygen-free copper windings, this high standard 2500kVA oil immersed distribution transformer effectively reduces no-load loss and load operation consumption. The fully sealed corrugated oil tank structure eliminates insulating oil oxidation and moisture intrusion, while the mature ONAN oil natural air natural cooling system ensures stable heat dissipation under full-load operation. With strict high-standard quality control throughout production, the equipment features lower operational noise, stronger short-circuit resistance and better environmental adaptability, making it a mainstream high-efficiency power transformation solution for modern power grid upgrading and large-scale industrial power distribution projects.

2.Technical Parameters

3. Core Purpose

The core purpose of the 2500kVA 10kV 400V high standard oil immersed transformer is to provide high-precision, stable and safe voltage step-down conversion for large-load 10kV power distribution systems. As a high-standard heavy-duty power transformation device, it bridges the voltage gap between medium-voltage transmission grids and low-voltage terminal electrical equipment, converting 10kV industrial high voltage into standard 400V power that meets the operational requirements of high-power industrial equipment and municipal public facilities.

In actual power grid operation, this high standard oil immersed power transformer undertakes multiple key functions including grid voltage stabilization, three-phase load balancing, power distribution shunting and circuit safety isolation. It effectively suppresses power grid harmonic interference, reduces voltage fluctuation and current surge caused by frequent large load switching, and significantly improves overall power supply quality and grid operational stability. Designed for long-term full-load continuous operation, it solves the power supply bottleneck of large centralized loads, avoids equipment damage and power outage risks caused by overload and voltage instability, and supports stable and efficient operation of regional 10kV power supply systems.

4. Application Scenarios

With ultra-large load capacity, high-standard manufacturing quality and excellent operational stability, the 2500kVA 10kV/400V high standard oil immersed transformer is widely used in high-demand, high-reliability required power supply scenarios. It is the preferred energy-saving transformation equipment for large industrial, municipal and new energy power distribution projects:

• Large Industrial Manufacturing Bases: Suitable for heavy industry factories, chemical plants, metallurgy workshops and large machinery processing bases with high centralized power consumption. It supports long-term full-load operation of multiple high-power production lines and industrial equipment, ensuring uninterrupted industrial production power supply.

• Urban Core Power Distribution Projects: Applied in urban central business districts, large-scale integrated residential communities and commercial complex clusters. It undertakes regional large-scale civilian and commercial power distribution tasks, adapting to peak power consumption and ensuring stable daily power supply for dense urban areas.

• Key Municipal Public Infrastructure: Ideal for large comprehensive hospital campuses, university urban campuses, urban rail transit supporting facilities and municipal water supply and drainage hub projects. It provides 24-hour continuous and reliable power guarantee for key public facilities that cannot suffer power failure.

• Large-scale Distributed New Energy Projects: Matched with medium and large rooftop photovoltaic power stations and centralized wind power generation projects. It completes high-stability voltage conversion and grid-connected power distribution for new energy generation equipment, effectively improving new energy grid access efficiency and power quality.

• Large Mining & Engineering Bases: Adaptable for long-term power supply of large mining areas, water conservancy hub projects and national key infrastructure construction sites. It features strong load impact resistance and adapts to complex and harsh field power supply environments.

• Power Grid Upgrading & Energy-saving Renovation: Widely used in urban and rural 10kV power grid capacity expansion and old equipment renovation projects. Replacing traditional high-loss transformers to reduce grid operation energy consumption and improve overall power grid operation efficiency.

5. Product Features

This 2500kVA 10kV 400V high standard oil immersed transformer adopts industry-leading high-standard design and precision manufacturing technology. It has comprehensive advantages in energy-saving performance, operational safety, structural durability and load adaptability, far exceeding the performance of conventional ordinary transformers in heavy-load power distribution scenarios:

• High-standard Energy-saving & Low-loss Performance: Adopts high-permeability low-loss silicon steel sheets and full oblique lap core stacking technology to minimize magnetic leakage and no-load iron loss. The integral oxygen-free copper winding structure reduces internal resistance and load copper loss. All loss indicators meet the latest national high energy-saving standards, effectively reducing long-term grid operation and power consumption costs.

• Ultra-stable Voltage Output & Strong Anti-interference Ability: Features advanced Dyn11 vector group design, which can accurately balance three-phase voltage and current, effectively suppress grid harmonics and eliminate voltage deviation. The multi-grade off-circuit voltage regulation device adapts to different regional grid voltage fluctuations, ensuring constant and standard 400V low-voltage output and improving terminal power supply quality.

• Fully Sealed High-durability Structure: Integral fully sealed corrugated oil tank design completely isolates internal insulating oil from external air, preventing oil aging, moisture ingress and dust pollution. The elastic corrugated structure automatically adjusts internal pressure with temperature changes, avoiding tank deformation and oil leakage. The whole machine adopts high-standard anti-corrosion electrostatic spraying process to resist ultraviolet aging and rain erosion, greatly extending service life.

• Excellent Heavy-load Operational Stability: Optimized internal winding layout and enhanced heat dissipation structure significantly improve overload resistance and short-circuit impact resistance. The efficient ONAN oil immersed self-cooling system maintains stable heat dissipation even under long-term full-load and peak-load conditions, effectively avoiding overheating failure and ensuring 24-hour continuous stable operation.

• High Safety & Low Failure Rate: Strict 10kV high-standard insulation design ensures high insulation strength and breakdown resistance. The equipment has natural over-current, over-voltage and overload protection capabilities, with extremely low operational failure rate. It can operate stably in high temperature, low temperature and high humidity harsh environments, fully guaranteeing grid and terminal equipment operation safety.

• Low Noise & Convenient Maintenance: Adopts professional vibration reduction structure and mute winding technology to effectively reduce operating noise, meeting urban and industrial environmental protection standards. The standardized modular component design makes daily inspection, oil quality detection and routine maintenance simple and efficient, greatly reducing later operation and maintenance costs.

6. FAQ (Frequently Asked Questions)

Q1: What are the advantages of high standard 2500kVA 10kV 400V oil immersed transformer over ordinary transformers?

This high standard oil immersed transformer adopts upgraded manufacturing process and stricter quality inspection standards compared with conventional models. It features lower no-load and load loss, more stable voltage output and stronger short-circuit resistance. The fully sealed high-grade oil tank structure effectively avoids oil leakage and insulation aging problems common in ordinary transformers. In heavy-load continuous operation scenarios, it has lower heat generation, lower operational noise and longer service life. It is more suitable for key projects and long-term full-load operation environments with high requirements for power supply stability and equipment durability.

Q2: Can this 2500kVA high standard oil immersed transformer operate stably outdoors all year round?

Yes, this high-standard 10kV 400V oil immersed transformer is fully optimized for outdoor working conditions. The whole machine adopts thickened steel plate welding and high weather-resistant anti-corrosion coating, which can resist rain erosion, snow freezing, wind and sand deposition and long-term ultraviolet aging. The fully sealed internal structure completely isolates external humid air and dust, preventing internal insulation damp failure and insulating oil deterioration. The ONAN self-cooling system automatically adapts to seasonal temperature changes, supporting long-term unattended continuous outdoor operation, which is widely applied in outdoor substation and industrial centralized power distribution projects.

Q3: What key maintenance items are required for high-capacity high standard oil immersed transformers?

This high-standard 2500kVA oil immersed transformer has low daily maintenance threshold and stable operational performance. Operators need to regularly check the insulating oil level and oil clarity to ensure the oil level is within the standard scale range and replace deteriorated turbid insulating oil in a timely manner. Clean dust and sundries on the surface of heat dissipation corrugations regularly to ensure unobstructed heat dissipation and prevent equipment overheating faults. Inspect the tightness of high and low voltage wiring terminals and oil tank sealing points to avoid oil leakage and poor contact. In addition, regularly test insulation resistance and operating temperature to prohibit long-term overload operation. With standardized routine maintenance, the equipment service life can reach more than 25 years.