Electric Transformer Price 12500kVA 16000kva 20000kva 35kv 10.5kv Pure Copper Oil Immers
Electric Transformer Price 12500kVA 16000kva 20000kva 35kv 10.5kv Pure Copper Oil Immers
1. Product Description
Electric Transformer Price 12500kVA 16000kva 20000kva 35kv 10.5kv Pure Copper Oil Immersed Transformers are high-capacity, medium-voltage power transformation equipment widely used in large-scale power grid substations, heavy industrial bases and new energy power station projects. This series of three-phase oil immersed power transformers covers three mainstream rated capacities including 12500kVA, 16000kVA and 20000kVA, adopting a standard 35kV high-voltage input and 10.5kV medium-voltage output design, which is a core step-down power distribution device for high-load power supply systems.
Different from conventional low and medium-capacity distribution transformers, this 35kV 10.5kV oil immersed transformer adopts 100% pure copper winding configuration instead of aluminum winding, which fundamentally improves current carrying capacity, operational stability and service life. Manufactured in strict accordance with IEC 60076 international power standards and industrial power equipment specifications, the equipment is equipped with low-loss silicon steel core and fully sealed oil tank structure, matched with professional oil natural air natural cooling technology. As a high-performance industrial electric transformer, it solves the problems of high loss, poor heat resistance and easy aging of traditional large-capacity transformers, and can adapt to long-term full-load and overload continuous operation in complex power supply environments. Users can check the latest Electric Transformer Price according to different capacity specifications and configuration requirements to meet the budget needs of large power engineering projects.
2. Core Product Features
This 12500kVA 16000kVA 20000kVA 35kV/10.5kV pure copper oil immersed transformer has obvious comprehensive advantages in material configuration, energy efficiency performance, operational safety and later maintenance. It is an upgraded high-reliability power transformation solution for modern high-capacity power distribution scenarios, with higher cost performance than ordinary aluminum-wound transformers in long-term operation.
2.1 Pure Copper Winding Configuration, Superior Conductivity
The whole machine adopts high-purity oxygen-free pure copper windings, which have lower resistivity, better electrical conductivity and stronger current carrying capacity compared with aluminum windings. This core configuration effectively reduces winding heating and power transmission loss during high-load operation, avoids serious temperature rise of large-capacity transformers under long-term full load, and ensures stable current output of 12500kVA, 16000kVA and 20000kVA models. The pure copper structure also enhances the transformer’s short-circuit resistance and anti-aging ability, greatly reducing the failure rate of coil burnout in high-intensity operation.
2.2 Ultra-Low Loss and High Energy-Saving Performance
Matched with high-permeability low-loss grain-oriented silicon steel core and optimized magnetic circuit design, this 35kV medium-voltage oil immersed transformer effectively controls no-load loss, load loss and no-load current. Whether it is 12500kVA conventional capacity or 20000kVA large capacity, the equipment maintains high energy conversion efficiency under daily operating conditions. Compared with traditional transformers of the same specification, it reduces comprehensive power consumption significantly, fully meets national and international energy-saving standards for power equipment, and creates long-term energy-saving benefits for power grid and industrial users.
2.3 Fully Sealed Oil Immersed Structure, Low Maintenance
Adopting integral fully welded sealed steel tank and high-quality insulating oil sealing process, the internal winding and core components are completely isolated from external air, moisture and dust. This structure prevents insulating oil oxidation, moisture absorption and deterioration, avoids oil leakage faults common in large-capacity transformers, and realizes long-term maintenance-free operation. There is no need for frequent oil replacement and internal cleaning, which greatly reduces later operation and maintenance costs and manual investment for large power projects.
2.4 Stable Heat Dissipation and Strong Overload Capacity
Equipped with standard ONAN natural air cooling system and large-area corrugated radiator, the insulating oil circulates naturally inside the tank for uniform heat dissipation, ensuring that the internal temperature rise is always within the safe range even during peak load operation. The optimized heat dissipation structure makes the 35kV 10.5kV transformer have strong overload resistance, which can cope with short-term load surge and grid voltage fluctuation, and adapt to unstable load changes of large industrial production and new energy power generation.
2.5 High Safety and Long Service Life
The equipment is equipped with multi-dimensional safety protection devices including over-temperature alarm, pressure relief protection, overload and short-circuit protection. It can quickly respond to various grid faults to protect the internal structure of the transformer. The outer shell adopts anti-corrosion and weather-resistant spraying treatment, which can adapt to outdoor open-air substation operation and harsh industrial environments. Relying on pure copper winding and high-quality insulating materials, the service life of the whole machine can reach more than 30 years under standard operating conditions, with extremely low operational failure rate.
3. Core Usage
As a key high-capacity power conversion equipment in medium-voltage power systems, the 35kv 10.5kv pure copper oil immersed electric transformer mainly undertakes the core function of stepping down 35kV high-voltage grid power to standard 10.5kV medium-voltage power. It serves as an important power transmission and distribution hub connecting high-voltage transmission lines and terminal medium-voltage power distribution equipment, and is widely used in centralized power supply and voltage regulation of large-scale power projects.
In actual power grid operation, this series of 12500kVA to 20000kVA large-capacity transformers can effectively stabilize regional grid voltage, balance power load distribution, and reduce electric energy loss in long-distance power transmission. It can solve the problem of insufficient power supply capacity of regional substations, improve the overall power supply quality and operational efficiency of medium-voltage power distribution networks. At the same time, it can cooperate with new energy power generation systems to complete grid-connected voltage matching and power collection, optimize the operating structure of modern power grids, and ensure continuous and stable power supply for industrial production and public infrastructure.
4. Application Scenarios
With large load capacity, pure copper high stability and excellent environmental adaptability, the 12500kVA, 16000kVA and 20000kVA 35kV/10.5kV oil immersed transformers cover almost all high-load medium-voltage power distribution scenarios, and are the preferred equipment for large-scale power engineering construction and grid upgrading.
4.1 Regional Hub Substations
Widely used in urban main substations, county-level power supply hubs and economic development zone power grid upgrading projects. The large-capacity design of 12500kVA to 20000kVA can meet the centralized power demand of urban high-load areas, effectively solve the problem of power supply shortage in peak power consumption periods, and provide stable 10.5kV medium-voltage power support for secondary power distribution systems.
4.2 Large Industrial and Mining Enterprises
Suitable for supporting power supply of large metallurgical plants, chemical industrial parks, mining groups and heavy equipment manufacturing bases. These industrial scenarios have long-term 24-hour high-load operation demand, and the pure copper oil immersed transformer can withstand continuous heavy-load operation, ensuring stable power supply for large production lines and heavy mechanical equipment, and avoiding production shutdown caused by power supply failure.
4.3 Large-Scale New Energy Power Stations
Matched with centralized photovoltaic power bases, onshore wind farms and energy storage power station projects. It converts the collected 35kV high-voltage new energy power into 10.5kV grid-standard power, realizing efficient grid-connected transmission and centralized distribution of clean energy. The stable voltage conversion performance effectively solves the problem of unstable output of new energy power generation and improves grid-connected power quality.
4.4 Key National Infrastructure Projects
Used for power supporting of large water conservancy projects, railway transit hubs, airport supporting facilities and super-large data center industrial parks. These key projects have extremely high requirements for power supply safety and continuity, and this high-reliability oil immersed electric transformer can provide long-term stable high-capacity power guarantee for key infrastructure operation.
4.5 Industrial Park Centralized Power Supply
Applied to centralized power distribution of super-large industrial parks and cluster-type manufacturing zones. A single 20000kVA large-capacity transformer or combined 12500kVA/16000kVA transformers can meet the simultaneous power demand of multiple enterprises in the park, optimize park power grid layout, and reduce the overall construction and operation cost of power distribution systems.
5. FAQ
5.1 What are the differences and selection basis for 12500kVA, 16000kVA and 20000kVA models?
All three models adopt the same 35kV/10.5kV voltage ratio and pure copper oil immersed structure, with consistent material quality and safety standards, only differing in rated load capacity and applicable scenarios. The 12500kVA transformer is suitable for medium-large industrial parks and regional branch substations with stable conventional load; the 16000kVA model is the most cost-effective mainstream specification, suitable for most urban hub substations and ordinary large industrial bases with moderate load growth demand; the 20000kVA ultra-large capacity is tailored for super-large industrial parks, large new energy power stations and high-load areas with obvious future power demand growth. Users can combine the current peak load and 5–10 years of load expansion plans to select the appropriate model and check the corresponding Electric Transformer Price for budget matching.
5.2 Why is pure copper winding better than aluminum winding for large-capacity 35kV transformers?
For high-capacity models of 12500kVA and above, pure copper windings have irreplaceable performance advantages over aluminum windings. Copper has lower resistivity and better thermal stability, which can effectively reduce heat generation and power loss during long-term full-load operation, avoiding excessive temperature rise of the transformer. In addition, pure copper windings have stronger ductility and short-circuit impact resistance, not easy to burn out or deform under sudden grid faults, with lower failure rate and longer service life. Although the one-time Electric Transformer Price of pure copper transformers is slightly higher, the energy-saving benefit and low maintenance cost in the later stage can effectively offset the initial investment, making it more suitable for long-term operation of large power projects.
5.3 What is the daily maintenance standard for this 35kV 10.5kV oil immersed transformer?
This fully sealed pure copper oil immersed transformer belongs to low-maintenance high-capacity power equipment with simple daily management. Daily inspection only needs to check whether the oil tank has oil leakage, confirm that the oil level is in the standard range, and monitor the operating oil temperature and noise to ensure no abnormal overheating and abnormal vibration. It is necessary to regularly clean the dust on the radiator surface to keep smooth heat dissipation. Thanks to the fully sealed structure, the internal insulating oil is not easy to deteriorate, and professional oil quality testing and partial discharge detection can be carried out every 8–10 years. Scientific routine maintenance can effectively extend the service life and ensure the long-term safe and stable operation of high-capacity power distribution systems.
