Class H insulation
The insulation endurance class of dry-type transformers include: B, F, H, C, etc.; the heat resistance can be classified into 130°C, 155°C, 180°C and 220°C. Since DuPont new materials and technologies are adopted, the SG(B) dry-type transformers thus produced can reach class H insulation endurance and critical parts can reach class C.
SG(B) series products are dry-type transformers with top safety performance in the present day. None of the insulating materials is combustion supporting and they are self-extinguishing and non-toxic. SG(B) series products have strong advantages in severe environment which has high fire protection requirements and high load fluctuations and are filthy and damp, such as: airports, power plants, metallurgical industry, hospitals, high-rise buildings, shopping centers, dense populated regions, electric power, subway, ships, petrochemical engineering, nuclear stations, nuclear submarines as well as other special environment. Blowers and enclosures can be furnished as required.
SG(B) series new products adopt special coil design, technology and materials, contributing to their excellent three proofing properties (damp proof, mold proof and salt spray proof), better thermal shock resistance and perfect soundness.
The Nomex° aromatic polyamide based insulation system can guarantee optimal point performance and mechanical properties during the entire service life of the transformers.
Nomex° products have strong aging, shrinkage and compression resistance as well as strong elasticity, so that the coils will still maintain their compact structure and short circuit bearing capacity after years of service.
SG(B) series new products utilize new structures, new materials and new technologies and have excellent heat dissipation, long thermal life and strong overload capacity. They can operate reliably for long periods under the condition of 120% overload. Forced air cooling is not required under IP23 conditions and they can still operate at full loads for a long time.
H series three phase non-encapsulated impregnated dry type transformer of my corporation research and development. Through strict selection, optimization design, scientific and rational process, rigorous and complete test facility, it has successfully passed the National Transformer Quality Supervision and Inspection Center (CTQC) certification. This series of products use DuPont Company’s NOMEX paper as insulation material, and having used at present advanced VIP’s vacuum impregnation technology, reasonable structure and neat appearance.
This series of products have excellent resistance to waiting, moisture, salt spray and dust. It operates safe and reliable at high temperature, small part discharge, low noise, high cooling efficiency and strong overload capacity. It is a new generation of green environmental protection dry type transformer. It is most suitable for the load center which required high fireproof safety and environmental protection, such as airport, subway, power plants, metallurgy, hospital, high-level, shopping center, residents concentration areas, petrochemical, nuclear power, nuclear submarines and other important places. It’s the ideal power supply and distribution equipment.
why choose us
1. We are factory
Xiecheng have more than 10 years experience in electric power industry, the production capacity up to 240MVA with the primary voltage of 220KV,qualified supplier for china state grid.Offers more then 5000pcs of transformer to the over seas, Cost-effective, highly efficient, durable and easy-to operate transformer is what we deliver.
2. Provided turnkey solution
We offers you a complete turnkey solution for building a power plant, steel plant, foundry or metal forming Industry. We can design the plant, manufacturer the equipment, install and commission it. also we can Provide the professional engineer team to your place to run the factory for you.
3. Strict Quality Control System
Before Being dispatched from our factory all of our equipment will undergo a series of strict test, including the appearance quality test, voltage electrical test, aging test also the package strength checking. On our production line each worker takes personal responsibility for their assigned task and this allows us to guarantee our products.
4. Professional after sales service
(1) Our teams provide onsite installation, commissioning and after sales service.
(2) You will get free lifelong technical advice from our highly qualified engineers at Xiecheng. This will give you a lot of confidence when buying from our company.
(3) We guarantee the ongoing supply and preferential prices for spare and wearing parts.
(4) Our highly qualified team of service technicians are well equipped to keep your transformer operating at high efficience at all times.