10KV Epoxy Resin Dry-Type Transformer - Energy-Saving Solution from China Suppliers and Factory
Dry-type transformer
The SC (B) series 6-35KV epoxy resin dry-type transformer is a new generation of energy-saving products. This series of distribution transformer products are used in special occasions where the transformer voltage is directly changed from 6-35KV power grid to 400V distribution, which can reduce the 6-35KV transmission and transformation links, and significantly reduce operation and maintenance costs. The 6-35KV level non excitation voltage regulating distribution transformer product has passed the appraisal and is established as a high-tech product.
The product has the advantages of low loss, good flame retardancy, strong short-circuit resistance, small size, low noise, good lightning and electric shock resistance, and uniform temperature distribution. Moreover, due to the fact that epoxy resin dry-type transformers do not use transformer oil, they will not produce oil pollution and have no explosion risk. The product can be widely used as a distribution transformer for urban power system renovation, as well as for various occasions such as high-rise buildings, airports, stations, ports, subways, etc. that have strict and special requirements for fire protection and environmental protection.
Product Structure
The epoxy resin dry-type transformer mainly consists of transformer core, transformer winding, transformer insulation, transformer lead, transformer cooling device, and temperature measurement device. The coil of the distribution transformer is wound on a high-precision winding machine, and the low-voltage winding adopts a foil winding structure. The larger capacity transformer has a ventilation duct, and after winding, it is vacuum dried. The pouring and solidification process strictly follows the process requirements to ensure that there are no bubbles or cavities inside the coil, and the transformer product achieves high-quality operation.
Core
Selects high-quality and high magnetic grain oriented cold-rolled silicon steel sheets, adopting 45° fully inclined seam stepped stacking sheets. The surface is coated with epoxy resin to reduce magnetic leakage, noise, no-load loss, and no-load current.
High Voltage Winding
Adopts a segmented and layered structure to reduce interlayer voltage. Formed by vacuum casting with epoxy resin filled with fillers. Reinforced with fiberglass mesh fabric to prevent cracking and improve short-circuit resistance.
Low Voltage Winding
Adopts a foil structure and an axial cooling air duct to enhance heat dissipation. Made with DMD epoxy resin pre-impregnated fabric, with the ends sealed with epoxy resin to form an overall fixed connection.
Product Features
Epoxy resin insulation material is inherently flame retardant and will not support combustion in the event of a fire.
The surface is sprayed with three-proof paint, ensuring reliable performance in harsh, dusty, or moist environments.
Cast and solidified with epoxy resin, providing high mechanical strength and strong short-circuit resistance.
Features Class F insulation, providing high heat resistance and improved operating capacity beyond the rated value.
Does not require transformer oil, and can be dried by simply powering on after a long-term shutdown.
Usage Environment
≤ 1000 meters
- Maximum temperature: +40 ℃
- Minimum temperature: -40 ℃
- Maximum monthly average temperature: +30 ℃
- Maximum annual average temperature: +20 ℃
Frequently Asked Questions
What are the main benefits of the SC (B) series dry-type transformer?
The SC (B) series dry-type transformer offers low loss, good flame retardancy, strong short-circuit resistance, small size, low noise, and excellent lightning resistance. Since it uses no transformer oil, it eliminates oil pollution and explosion risks, making it safe for fire-sensitive environments.
Where are these dry-type transformers typically used?
They are widely used in urban power system renovations and in locations with strict fire protection and environmental standards, such as high-rise buildings, airports, subways, stations, and ports.
What is the construction of the transformer core?
The core is built using high-quality, high magnetic grain-oriented cold-rolled silicon steel sheets. It features a 45° fully inclined seam stepped stacking design and is coated with epoxy resin to reduce noise, magnetic leakage, and no-load losses.
How does the high-voltage winding prevent cracking?
The high-voltage winding uses a segmented and layered structure cast in a vacuum with epoxy resin and fillers. Fiberglass mesh fabric is applied to the surface to enhance mechanical strength and short-circuit resistance, preventing cracks.
What are the operating environmental limits for this transformer?
It is designed for altitudes ≤ 1000 meters, with operating temperatures ranging from a minimum of -40 ℃ to a maximum of +40 ℃ (with a maximum annual average of +20 ℃).
Is maintenance difficult for the SCB series transformer?
No, maintenance is very convenient. Because it does not use transformer oil, there is no oil testing or replacement required. If it has been shut down for a long period, it can be dried simply by powering it on.
HEADING-TYPE-1
High voltage parallel capacitors are suitable for parallel connection in AC power systems with power frequency (50Hz or 60Hz) of 1kV and above. They are used to compensate for inductive reactive power, improve power factor, improve voltage quality, reduce line losses, and fully utilize the efficiency of power generation and supply equipment.
description2
HEADING-TYPE-1
High voltage parallel capacitors are suitable for parallel connection in AC power systems with power frequency (50Hz or 60Hz) of 1kV and above. They are used to compensate for inductive reactive power, improve power factor, improve voltage quality, reduce line losses, and fully utilize the efficiency of power generation and supply equipment.
description2