In power transmission and distribution systems, dry-type transformers are widely used due to their safety, environmental friendliness, and low maintenance costs. The 500kVA 6kV-10kV dry-type transformer is particularly suitable for factories, commercial buildings, and urban infrastructure projects, making it an ideal choice for medium to large load applications. Many buyers first consider the price and appropriate model selection when purchasing. This article will provide a detailed analysis of the price factors, model specifications, selection guide, and factory purchasing tips for 500kVA 6kV-10kV dry-type transformers to help you make informed decisions quickly.
Basic Features of Dry-Type Transformers
Dry-type transformers use air as a cooling medium. Compared with oil-immersed transformers, they offer high fire safety, no environmental pollution, and suitability for indoor installation. A 500kVA transformer belongs to the medium-sized category and is commonly used in industrial plants, commercial complexes, and urban distribution systems. The main structure includes the core, winding, and insulation materials, typically using epoxy resin casting or air-cooling methods to ensure stable operation.
When designing these transformers, factors such as voltage level, capacity, short-circuit impedance, insulation class, and environmental conditions must be considered to ensure safe and reliable power supply. For example, a 6kV-10kV voltage level can adapt to medium-voltage distribution networks, meet different load demands, and remain stable under high temperature, humidity, or fluctuating loads.
Factors Affecting the Price of 500kVA 6kV-10kV Dry-Type Transformers
The price of dry-type transformers is not fixed and depends on multiple factors. Firstly, the capacity and voltage level. A 500kVA capacity is medium-sized, so the price is higher compared to low-capacity transformers. Secondly, the manufacturing process, including epoxy resin casting technology, copper or aluminum windings, core material quality, and insulation treatment, affects the cost. High-performance materials and advanced processes improve reliability and lifespan but increase the cost.
Brand and supply channels are also key factors. Leading domestic transformer manufacturers typically offer complete after-sales service and technical support, but prices are slightly higher. Factory direct purchasing can offer lower prices, but it's crucial to verify the manufacturer's qualifications and production capabilities. Transportation and installation costs also impact the total price, especially for large transformers requiring specialized lifting and on-site commissioning.
Common Models and Specifications
500kVA 6kV-10kV dry-type transformers are available in various models to meet different application requirements. Main specifications include primary voltage of 6kV or 10kV, secondary voltage of 380V, 400V, or other low-voltage levels, and frequency of 50Hz or 60Hz. Short-circuit impedance usually ranges from 4% to 6% to meet voltage regulation and system stability needs.
The winding material can be copper or aluminum. Copper offers better conductivity and lower losses but is more expensive, while aluminum is lighter and cost-effective but slightly lower in heat resistance and conductivity. Insulation classes are generally F or H, suitable for different temperature rise and environmental conditions. Protection levels can be IP23 or IP44, suitable for indoor or outdoor installation.
Selection Guide: How to Choose the Right 500kVA Dry-Type Transformer
When selecting a transformer, first clarify the load requirements and power environment. For industrial plants, high starting currents and frequent load fluctuations require models with strong overload capacity and high insulation class. Commercial buildings or residential distribution systems focus more on efficiency and operating cost, so energy-efficient dry-type transformers are recommended.
Environmental conditions also affect model choice. For installation in high-temperature, humid, or dusty environments, select models with higher protection and corrosion resistance. Space constraints may require compact and lightweight designs. Additionally, warranty, after-sales service, and technical support from the manufacturer are critical factors that affect long-term cost and safety.
Factory Purchasing Tips for Dry-Type Transformers
Purchasing directly from a factory can provide price advantages, but key factors must be considered. First, verify the manufacturer's qualifications and production capacity, including ISO certification, CCC certification, and compliance with relevant industry standards. Second, ensure the transformer meets the design specifications and technical parameters to avoid losses from incorrect models or quality issues.
The purchase contract should clarify delivery time, transportation, installation service, and warranty terms. Large-capacity dry-type transformers usually require specialized equipment and technical teams for transport and installation, so choosing a factory that provides full services is recommended. Additionally, request detailed technical documentation and installation manuals to facilitate on-site construction and commissioning.
Price Range of 500kVA 6kV-10kV Dry-Type Transformers
According to market trends and different manufacturer quotes, the price of 500kVA 6kV-10kV dry-type transformers typically ranges from RMB 150,000 to 300,000, equivalent to approximately USD 20,000 to 40,000. Prices vary based on materials, manufacturing processes, brand, and supply channels. Copper windings, higher insulation class, and higher protection levels increase cost, while aluminum windings or standard models are more competitive.
It is important to note that lower price does not always mean better value. Consider the transformer's lifespan, efficiency, maintenance cost, and after-sales service to ensure the best long-term return on investment. Choosing a reputable manufacturer and the right model is essential for a safe and stable power system.
500kVA 6kV-10kV dry-type transformers are widely used in industrial, commercial, and urban distribution systems. Their price is influenced by capacity, voltage level, materials, manufacturing process, brand, and supply channel. By selecting the right model, purchasing wisely, and considering manufacturer qualifications, users can obtain cost-effective transformers while ensuring safety and reliability. Whether through factory direct sales or authorized distributors, understanding market prices and model specifications is key to making timely and effective decisions.
If you are looking for a 500kVA 6kV-10kV dry-type transformer, you can use the price reference, model parameters, and selection guide provided in this article to contact reputable manufacturers for consultation and purchase. By choosing the right model and factory direct supply, you will get a safe, efficient, and reliable transformer solution that ensures stable power supply.
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