2500kva 3150kva 15kv 20kv 0.38kv 0.4kv Three Phase Oil Immersed Transformer
2500kva 3150kva 15kv 20kv 0.38kv 0.4kv Three Phase Oil Immersed Transformer
1. Product Description
The 2500kva and 3150kva Three Phase Oil Immersed Transformer is a high-capacity medium-voltage power distribution transformer engineered for industrial and utility-grade power conversion. Designed with dual primary voltage options of 15kv and 20kv and secondary low voltage outputs of 0.38kv and 0.4kv, this oil-filled three-phase transformer delivers precise step-down voltage conversion for mainstream industrial and municipal power systems. Manufactured in full compliance with IEC 60076 international power equipment standards, this heavy-duty distribution transformer adopts high-performance cold-rolled silicon steel core and oxygen-free copper winding technology, effectively lowering no-load and load losses while ensuring stable long-cycle operation under high-power loads.
Built with a fully sealed corrugated oil tank structure and professional vacuum oil injection process, the 15kv/20kv three phase oil immersed transformer eliminates the traditional conservator design, preventing external moisture, dust and corrosive air from entering the internal system. The matched high-purity insulating oil provides dual functions of heat dissipation and insulation, solving the overheating and insulation aging problems that commonly occur in high-capacity transformers during continuous operation. With two mainstream capacity grades of 2500kva and 3150kva, the equipment perfectly adapts to large-load power supply demands, and the flexible 0.38kv and 0.4kv low-voltage output modes can match most terminal industrial electrical equipment and power distribution systems on the market.
2. Core Uses
This high-capacity three phase oil immersed transformer focuses on medium and high voltage power conversion and centralized power distribution, serving as the core power transformation equipment for 15kv and 20kv medium-voltage power grids. Its primary core function is to step down 15kv or 20kv high-voltage grid power to standard 0.38kv and 0.4kv low-voltage industrial and civil power, realizing safe, efficient and loss-reduced power transmission and distribution. Compared with small-capacity distribution transformers, the 2500kva and 3150kva models can bear long-term high-power load operation, effectively solving the power supply shortage and voltage instability problems in large-scale power consumption scenarios.
In addition to basic voltage transformation, the 20kv/15kv oil immersed distribution transformer also undertakes key tasks such as grid load balancing, power quality optimization and line loss reduction. It can automatically adapt to load fluctuations in peak and off-peak power consumption periods, maintain stable output of 0.38kv/0.4kv three-phase voltage, avoid voltage deviation and power fluctuation, and protect the safe operation of high-precision industrial equipment and municipal power facilities. It also supports long-term unattended operation, which greatly reduces manual intervention and operational management costs for power distribution systems.
3. Application Scenarios
3.1 Large Industrial Factory Power Distribution
The 2500kva and 3150kva three phase oil immersed transformers are widely used in large manufacturing factories, chemical plants, metallurgical plants, mining enterprises and other heavy industrial scenarios. These sites have continuous high-power power consumption and frequent load fluctuations, and the high-load resistance of the 15kv/20kv high-capacity transformer can fully meet the long-term operation demand of large mechanical equipment, production lines and electrical control systems. The stable 0.38kv and 0.4kv low-voltage output ensures the consistent operation of industrial equipment, and the oil-immersed heat dissipation structure effectively copes with high-temperature operation environments in industrial workshops.
3.2 Industrial Park & Logistics Hub Power Supply
Centralized industrial parks, large logistics parks and industrial gathering areas have concentrated power loads and diverse power consumption types, which put forward high requirements for transformer capacity and stability. The 3150kva high-capacity oil immersed transformer is suitable for regional centralized power distribution of industrial parks, while the 2500kva model is commonly used for partition power supply of park functional areas. The equipment adapts to 15kv and 20kv regional grid access standards, and the 0.38kv/0.4kv dual low-voltage output can meet the mixed power demand of industrial production, office facilities and supporting equipment in the park.
3.3 Municipal Power Grid & Substation Projects
This medium-voltage three phase oil immersed transformer is an essential core equipment for urban grid upgrading, suburban power distribution stations and regional small and medium-sized substations. It is compatible with 15kv and 20kv municipal medium-voltage grid systems, and converts high-voltage grid power into standard 0.38kv and 0.4kv civil and commercial power, providing stable power guarantee for urban communities, commercial buildings and public facilities. The fully sealed structure adapts outdoor substation installation environments, with strong weather resistance and low failure rate, which effectively improves the reliability of municipal power supply.
3.4 New Energy Power Station Grid Connection
In large-scale photovoltaic power stations, wind power plants and energy storage power station projects, the 2500kva and 3150kva oil immersed distribution transformers are commonly used for terminal power conversion and grid-connected power distribution. The electric energy generated by new energy units is converted into standard 0.38kv/0.4kv power through the transformer, and then connected to the 15kv/20kv medium-voltage grid after voltage matching. The equipment has strong anti-interference ability, which can adapt to the unstable power output characteristics of new energy power generation, optimize grid-connected power quality, and ensure safe and stable grid-connected operation of new energy power stations.
4. Product Features
4.1 Dual Voltage Grade Matching & Strong Compatibility
This three phase oil immersed transformer supports two mainstream primary input voltages of 15kv and 20kv, and is equipped with 0.38kv and 0.4kv standard low-voltage output, covering the voltage standards of most industrial and municipal power grids. The dual-capacity design of 2500kva and 3150kva allows flexible selection according to actual load demands, avoiding equipment overload or capacity waste. It is fully compatible with three-phase AC power distribution systems, and can be seamlessly connected to industrial equipment, municipal power grids and new energy grid-connected systems with extremely high universal applicability.
4.2 Ultra-Low Loss & High Energy Saving Performance
Adopting high-quality oriented cold-rolled silicon steel sheets and high-purity copper winding process, the transformer optimizes the internal magnetic circuit and circuit structure, effectively reducing magnetic flux leakage and operating loss. Compared with traditional old-fashioned high-capacity transformers, its no-load loss and load loss are significantly reduced, and the overall power transmission efficiency is higher than 98%. Even under long-term continuous high-load operation, it can maintain low energy consumption, effectively reducing the long-term operating power consumption cost of power distribution systems and achieving efficient and energy-saving power operation.
4.3 Fully Sealed Structure & Maintenance-Free Operation
The whole machine adopts an integrated fully sealed corrugated oil tank and vacuum pressure oil injection technology, without traditional oil storage cabinet and breathing device. The fully closed structure completely isolates internal insulating oil from external air and moisture, preventing oil oxidation, aging and moisture deterioration. It avoids insulation performance decline and heat dissipation failure caused by oil quality problems, realizing long-term maintenance-free operation. The later operation and maintenance are extremely simple, which greatly saves manpower and material costs for equipment maintenance.
4.4 Excellent Heat Dissipation & Strong Overload Capacity
Equipped with high-efficiency insulating oil circulation heat dissipation system and multi-group corrugated heat dissipation sheets, the 2500kva/3150kva three phase oil immersed transformer has large heat dissipation area and fast heat dissipation speed. It can effectively dissipate heat generated by high-power operation, and maintain stable temperature in long-term continuous operation. The equipment has excellent short-term overload resistance, which can withstand peak load impact in power consumption peak periods, and will not cause overheating tripping or performance attenuation under temporary overload conditions.
4.5 High Stability & Wide Environmental Adaptability
With strict industrial-grade insulation design and overall anti-corrosion and rust-proof treatment, the 15kv/20kv oil immersed transformer has strong adaptability to harsh environments. It can operate stably in high temperature, low temperature, humid, dusty and corrosive working environments, and is suitable for outdoor substations, industrial workshops, field new energy power stations and other complex installation scenarios. The equipment operates with low noise and stable voltage output, without frequent voltage fluctuation and failure, ensuring long-term safe and reliable power distribution.
5. FAQ (Frequently Asked Questions)
5.1 What is the difference between 2500kva and 3150kva models, and how to choose?
The core difference lies in the maximum bearable load capacity. The 2500kva three phase oil immersed transformer is suitable for conventional large industrial workshops, single industrial parks and municipal regional power distribution scenarios with stable and medium-high loads. The 3150kva model has higher overload tolerance and maximum power supply capacity, which is more suitable for scenarios with large load fluctuations, high peak power consumption and long-term full-load operation, such as heavy chemical industry, large energy storage power stations and centralized industrial zones. Users can select models according to actual maximum load and future power expansion demand.
5.2 Can this 15kv/20kv transformer support both 0.38kv and 0.4kv low voltage output?
Yes, this high-capacity oil immersed distribution transformer supports flexible switching and matching of 0.38kv and 0.4kv secondary output voltages. The two low-voltage grades cover the mainstream voltage requirements of industrial three-phase equipment and municipal power distribution. Factory wiring can be customized according to user needs, and the voltage conversion accuracy is high with no obvious voltage deviation during operation. It can perfectly adapt to different terminal equipment voltage standards and meet the diversified power supply needs of industrial production and municipal engineering.
5.3 What are the core advantages of oil immersed type compared with dry-type transformer in high-capacity scenarios?
For 2500kva and 3150kva high-capacity power distribution scenarios, oil immersed transformers have more obvious comprehensive advantages. The insulating oil inside the equipment provides efficient circulating heat dissipation, with better heat dissipation effect and higher overload resistance than dry-type transformers, which is more suitable for long-term high-load continuous operation. Meanwhile, the fully sealed oil tank structure has stronger environmental adaptability, lower operation noise and longer service life. In addition, the later maintenance cost is lower, and the overall economy of long-term operation is far better than dry-type transformers, making it the preferred equipment for medium and high voltage large-capacity power distribution.
