Cast Resin Dry-Type Transformer
Cast Resin Dry-Type Transformer is a type of dry-type transformer. Its magnetic circuit and windings are not immersed in insulating liquid but encapsulated with an epoxy resin mixture. With high operational reliability, its application scenarios are continuously expanding. Core features focus on safety, environmental protection, and low maintenance: it adopts an oil-free design, fundamentally eliminating fire hazards and environmental pollution risks caused by oil leakage; it is self-extinguishing with low fire risk, making it suitable for scenarios with high fire protection requirements; and it requires practically no daily maintenance, significantly reducing operational costs and labor input.
Key Technical Parameters
Capacity Range: Covers 100kVA – 10MVA, meeting diverse needs from small-to-medium power distribution to large-scale industrial electricity use. For example, specifications such as 2000kVA and 2500kVA can adapt to power distribution in industrial production lines and large commercial complexes.
Voltage Configuration: The typical voltage ratio is 11000/433V or 11000/415V, while supporting multiple output voltages including 220V, 380V, 110V, 440V, and 480V. The input voltage can cover medium-voltage levels such as 10kV, 22kV, and 35kV, with a voltage regulation range of ±2.5% or ±5%. It can flexibly respond to grid voltage fluctuations and ensure stable operation of electrical equipment.
Winding Material: Offers two options—aluminum windings and copper windings. Copper windings have superior electrical conductivity and lower losses, suitable for scenarios with high energy efficiency requirements; aluminum windings have more advantages in cost, meeting basic performance requirements for budget-constrained users.
Cooling Method: Includes natural cooling (ANAN) and forced air cooling (ANAF, equipped with fans). Natural cooling is applicable to locations with stable loads and moderate ambient temperatures; forced air cooling can effectively improve heat dissipation efficiency, ensuring stable operation of the transformer under high-load or high-ambient-temperature conditions.
Protection Level: Provides standalone (IP00) and various IP-rated enclosure options. IP00 is suitable for dry, dust-free indoor environments, while products with IP-rated enclosures can resist dust and moisture intrusion, adapting to humid, dusty industrial or outdoor edge scenarios.
Certification Standards: Complies with multiple international authoritative standards such as CE, UL, ISO, IEC, IEEE, and KEMA.
Advantage
Energy Efficiency and Environmental Protection: Meets Ecodesign Tier 2 loss standards, with low energy loss during operation, effectively reducing electricity costs. Meanwhile, the oil-free design avoids oil pollution, aligning with global green and environmental protection trends, and is suitable for projects with strict carbon emission and environmental requirements.
Installation and Cost: Features low installation costs, eliminating the need for complex auxiliary facilities such as oil pits and fire dikes required for oil-immersed transformers, saving installation space and initial investment; it also has low maintenance costs throughout its life cycle, reducing long-term operational expenses for enterprises.
Strong Adaptability: Equipped with a wide range of ancillary equipment such as intelligent monitoring devices and voltage regulation components, which can be customized according to users’ specific needs. It can also operate stably in various environments, including indoor locations with high humidity and high fire risk, as well as different fields such as industry, commerce, and residential areas.
Application
Industrial Sector: Covers petrochemical industry, glass factories, cement plants, food and beverage processing plants, etc. It can meet the high-power, continuous, and stable power supply needs of industrial production lines, and has significant advantages especially in chemical, food, and other industries with fire protection and environmental requirements.
Commercial and Civil Use: Suitable for large shopping malls, hotels, high-rise residential buildings, etc. The oil-free, low-noise, and small-size characteristics can adapt to the compact installation space of commercial buildings, while ensuring fire safety in crowded areas.
Infrastructure and Energy: Includes power systems (substations, distribution networks), transportation (airports, railway stations, subway stations, highway tunnels), renewable energy (power distribution systems for solar energy, wind energy, and hydropower), etc.
Special Scenario Adaptation:Especially suitable for indoor installation and high fire risk areas, such as hospitals, schools, data centers, and other places with extremely high requirements for safety and stability. The self-extinguishing and low-maintenance characteristics can minimize the impact of equipment failures on the operation of key locations.
