dry isolation transformer
1. Proven and reliable design: Thanks to the classic design obtained by dry casting of epoxy resin, the product is characterized by stable technology, a wide range of applications in the market and rich operating experience.
2. Safety and fire resistance: It is fireproof, self-extinguishing, does not require the use of oil, and can be directly installed in switchboards, buildings, basements and other places.
3. Moisture and dust resistance: The device can function normally in humid and dusty environments and can be put into operation immediately after being turned off without prior drying.
4. Moderate loss and low noise: With reasonable design, small partial discharge, stable operation and easy daily maintenance.
5. Environmentally friendly and maintenance-free: no risk of oil leakage, no environmental pollution, almost no maintenance and long service life.
Dry type transformer manufactured using epoxy resin casting method.
1. Introduction to the product
This product adopts vacuum epoxy casting technology and foil winding, while the main insulation material in traditional oil transformers is the insulating oil used in oil-cooled transformers.
2. Technical characteristics (customizable)
2.1 Basic electrical parameters
Element |
Specification |
Notes |
Model |
Dry transformer |
Rated power: from 30 kVA to 2500 kVA; Voltage class: 10 kV/0.4 kV |
Phase |
Three-phase |
50 Hz |
Nominal lifting capacity |
50 kVA-8000 kVA |
Full standard range; custom options available. |
Rated voltage |
High voltage: 10 kV (±2×2.5%); low voltage: 0.4 kV |
Adjustment of off-circuit taps to compensate for line voltage fluctuations. |
Connection group |
Dean11 |
Standard for distribution transformers; suppresses third harmonics. |
Regulation of taps |
Off-circuit tap changer |
Simple and reliable; adjustable when there is no power. |
3.1 Exceptional safety, eliminates the risk of fire
The windings are manufactured by vacuum casting using epoxy resin to form a dense, fire-resistant material.
The oil-free design ensures safe installation in basements, shopping centers, hospitals and other places with high fire safety and large crowds of people.
3.2 Advanced technology, industry-leading short-circuit resistance.
Low voltage foil winding has exceptional mechanical strength and short circuit resistance.
High performance grain oriented silicon steel with beveled joint reduces core loss and noise levels.
3.3 High adaptability to the environment
Fully sealed windings are resistant to moisture, dust, salt fog and condensation; no drying is required after shutdown.
Anti-corrosion coatings, stainless steel fasteners and reinforced insulation are available for use in chemical industries and coastal areas.
3.4 Excellent value for money
Established mass production ensures a competitive initial cost.
Oil-free and maintenance-free design eliminates the need for oil changes, inspections and maintenance.
4. Applications
High-rise residential buildings, shopping malls, hotels, office buildings, hospitals, schools and nursing homes.
Electronics, food industry, textile industry, mechanical engineering, mining, cement and chemical industry (anti-corrosion version).
Metro, railways, airports, stadiums, libraries, city lighting and wastewater treatment plants.
Reconstruction of urban and rural power grids, integration of photovoltaic and wind energy, auxiliary systems of power plants.
