In industrial power systems, new energy installations, and modern distribution networks, transformer selection is no longer based solely on capacity. Safety, lifecycle cost, installation flexibility, and long-term reliability are now critical decision factors. As a result, the 1250kVA single-phase dry-type transformer has become a preferred solution for medium- and large-capacity single-phase power supply systems.
This article provides a practical overview of the 1250kVA single-phase dry-type transformer, with a focus on structure, operating characteristics, typical applications, and the key elements that influence the Single-phase dry-type transformer price in real-world projects.
What Is a 1250kVA Single-Phase Dry-Type Transformer?
A 1250kVA single-phase dry-type transformer is designed to deliver single-phase power with a rated capacity of 1250kVA using a dry insulation system. Air is used as the primary cooling medium, while the windings are insulated with composite materials or epoxy resin casting.
Unlike oil-immersed transformers, dry-type models operate without insulating oil. This eliminates risks associated with oil leakage, fire hazards, and environmental contamination, making them suitable for indoor installation and load-center deployment.
Structural Design and Operating Principle
Magnetic Core Design
The core is manufactured from high-grade cold-rolled silicon steel laminations. This structure reduces no-load losses and operating noise, improving overall efficiency and making the transformer suitable for noise-sensitive environments such as data centers and commercial buildings.
Windings and Insulation System
High-voltage and low-voltage windings are typically made from copper or aluminum conductors. Vacuum epoxy resin casting ensures insulation classes of F or H, providing excellent resistance to moisture, heat, and short-circuit stress.
Cooling Configuration
Natural air cooling supports continuous operation under rated load conditions, while forced air cooling allows short-term overload capability. Proper thermal design directly extends service life and stabilizes long-term performance.
Why Choose a Dry-Type Transformer Over an Oil-Immersed Model?
The primary advantage of a 1250kVA single-phase dry-type transformer lies in safety. Without flammable oil, fire and explosion risks are significantly reduced. This makes dry-type transformers ideal for installation inside buildings or near critical loads.
From a maintenance perspective, dry-type transformers require no oil testing or leak inspection, reducing downtime and operational labor costs. Their compact design also helps save installation space and cabling expenses.
Main Application Scenarios
Industrial Power Distribution
In manufacturing plants, mining operations, and large equipment power supply systems, the 1250kVA single-phase dry-type transformer provides stable output while meeting strict safety and environmental requirements.
New Energy Projects
Photovoltaic systems, wind power installations, and energy storage facilities often require modular or single-phase power solutions. The oil-free design of dry-type transformers aligns well with the safety standards of these projects.
Urban and Commercial Infrastructure
In data centers, hospitals, rail transit systems, and commercial complexes, fire prevention and indoor installation capability are decisive factors. Dry-type transformers offer clear advantages in these environments.
Key Factors Affecting the Single-Phase Dry-Type Transformer Price
The Single-phase dry-type transformer price of a 1250kVA dry-type transformer is influenced by several technical and commercial factors. Core material quality, winding conductor type, and insulation class directly impact manufacturing cost.
Energy efficiency is another major consideration. Transformers with lower no-load and load losses usually have a higher initial price, but they significantly reduce electricity costs over long operating periods.
Additional configurations such as higher IP protection levels, intelligent temperature monitoring systems, low-noise designs, or forced air cooling options will also affect the final price.
Selection Recommendations
When selecting a 1250kVA single-phase dry-type transformer, it is important to evaluate the installation environment, load characteristics, and applicable energy efficiency standards. Rather than focusing only on the initial Single-phase dry-type transformer price, procurement decisions should consider total cost of ownership, including energy consumption, maintenance, and service life.
Working with an experienced transformer manufacturer allows for customized solutions that balance performance, safety, and cost, ensuring reliable operation throughout the project lifecycle.
The 1250kVA single-phase dry-type transformer is a reliable and safe power solution for industrial, commercial, and new energy applications. With proper selection and configuration, it delivers long-term operational stability while helping control energy and maintenance costs.
For detailed specifications, pricing analysis, or customized solutions, consulting a professional transformer supplier is the most effective way to achieve optimal project performance.
Leave A Comment