Description
Technical Parameters
Henan GNEE Electric Co., Ltd. is one of the leading manufacturers and suppliers of 1250 kva vacuum impregnated dry type transformer in China, also supports customized service with low price. Welcome to buy discount 1250 kva vacuum impregnated dry type transformer for sale here from our factory. If you have any enquiry about pricelist, please feel free to email us.
Product Description
The vacuum pressure impregnated dry type transformer offers reliable power transmission. Its windings, crafted from premium conductors with reinforced insulation, ensure excellent electrical performance. Using vacuum impregnation, it achieves low partial discharge and enhanced durability. With optimized designs for both HV and LV windings, it excels in anti - short circuit and anti - lightning capabilities, making it a robust choice for various industrial and commercial applications.
For further insights into vacuum pressure impregnation vpi transformers, get in touch with us at sales@gneesteels.com.
product video
Technical data sheet
Vacuum impregnated dry type transformer parameters
1250 kVA Vacuum Impregnated Dry Type Transformer manufacturing process
Core
Constructed from high - quality grain - oriented cold - rolled silicon steel with excellent magnetic conductivity, the core employs a 45° five - step overlapping technique. This design choice significantly reduces no - load loss and no - load current, enhancing the 1250 kVA vacuum impregnated dry type transformer's energy efficiency and overall performance.
Advanced simulation analysis is integral to the core design process. By leveraging this method, we can accurately and efficiently calculate the vibration frequency and amplitude, ensuring optimal structural integrity and minimizing potential mechanical issues.
Flexible connections are strategically implemented between the core and coils, as well as between the core and clamps. These innovative connections result in a remarkable 10 - 15dB reduction in the vacuum impregnated transformer's noise level compared to traditional products, making it an ideal choice for applications where quiet operation is essential.
LV Winding
The LV windings utilize high - quality foil conductors or are crafted from 100% copper wire. This material choice ensures an optimal amperturn balance and significantly reduces transverse magnetic flux leakage. As a result, the vacuum pressure impregnated dry type transformer's anti - short circuit capability is substantially enhanced, providing greater reliability and safety under various electrical conditions.
With an ingenious design of the oil passage structure, the heat dissipation efficiency of the coils is notably improved. This effective heat dispersion mechanism helps to lower the temperature rise of the LV winding, enabling the vacuum impregnated dry type transformer to handle higher loads for extended periods and significantly boosting its overload capacity.
HV Windings
Crafted from top - tier wire conductors, the HV windings feature robust insulation reinforced with fiberglass. This material combination ensures exceptional electrical isolation and mechanical strength, safeguarding the windings against potential damage.
Manufactured through a vacuum and high - pressure casting process, the HV windings achieve unparalleled resin penetration. This results in extremely low partial discharge levels; for 11kV products, the partial discharge can be as low as 5Pc. Such performance guarantees stable and reliable operation under high - voltage conditions.
The HV windings adopt an optimized structural design, effectively enhancing the VPI transformer's electric field distribution. Lighting impulse simulation calculations are integrated into the winding model design, significantly boosting the product's resistance to lightning strikes and ensuring its durability in various electrical environments.
For more detailed information, please do not hesitate to contact us at sales@gneesteels.com.
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