S20-500kVA/20/0.4 Oil Immersed Power Distribution Transformer

                                                                                                                                                      
 

Packaging & Delivery
 

Company Profile

                                                                           Xuzhou huaya transformer co., ltd.

          Xuzhou Huaya transformer Co., Ltd. is a professional engaged in the production of transformers and ancillary products,research and development, sales of high-tech enterprises. The company's total investment of 1.3 billion yuan, registered capital of 5000 Since its establishment, the company has always followed the principle of "science and technology as the guide, service first,integrity-based." " Adhere to the best interests of customers as its mission, focus on product research and development, the use of Computer-aided design. In strict accordance with the ISO9000 quality management system standards,refinement, pragmatism, innovation and progress, to provide customers with environmental protection, energy saving, low-carbon quality products in line with the characteristics of each region, to meet the market and the fundamental requirements of different customers.

        Marketing network and service network has been improved, and will further promote the domestic and foreign markets,
and actively provide customers with timely warm and thoughtful service, enhance product value and value-added services.
Eliminate the customer's worries, so as to achieve mutual win-win supply and demand sides and common development.

        Xuzhou Huaya transformer Co., Ltd. is willing to advanced technology, sophisticated equipment, excellent quality, excellent service,
fine live operation, good reputation, sincerely welcome people from all walks of life at home and abroad to our company
Discuss cooperation, mutual benefit and win-win, and seek common development.




  



Xuzhou Huaya DESIGNS, MANUFACTURES AND SUPPLIES:
     
  

Hua ya'S RESEARCH & DESIGN TEAM
 
  

Partner
 
  

Customized Oil-Immersed Power Distribution Transformer
 
 

The Oil Immersed Transformer series are the kind of the transformer with low noise, low loss and low partial discharge. With rational structure, high-quality material,scientific design, strict craftsmanship and advanced test method, the characteristics of this series products are as follows:

Excellent dynamic thermal stability, outstanding short-circuit resistance, high lighting impulse resistance, high reliability.
 Low lose, energy conservation, run economically and maintenance free.
Contour artistic, compact size, low installation and maintenance costs.
C226Performance and parameter conform to or excel the standards of IEC.
Fully Hermetically oil tank, effectively preventing air from eroding oil and prolonging the service life of the transformer

OUTLINE DRAWING
 

CONSTRUCTION:

CORE

The core is manufactured from cold-rolled grain oriented, (CRGO) silicon steel. The steel sheets are cut into required dimensions on automated
machines thereby ensuring reduced air gap, low exciting current and low noise. Each lamination is insulated from each other to ensure a long trouble-free lifetime of the core. Using 45° stepping all leaning lamination way to laminate. So the no-load current are reduced efficiently.

WINDINGS

LV winding is manufactured with high quality foil conductor or copper wire, and the ampere-turn is balanceable. The additional loss is low and the ability of anti-short is improved. Oil drawings of heat dispersion are scientifically used in the winding, and the surface of heat dissipation is increased, so the temperature is reduced and the ability of over-load is improved.
temperature is reduced and the ability of over-load is improved.
HV winding is manufactured with high quality copper wire and excellent design structure. It improves the distribution of electric field. With lighting
impulse analysis, the ability of anti-lighting impulse has been improved.

TANK

The tank is jointed with high-quality steel. The surface is eliminated rust phosphate coating and pained with the type of FVC anticorrosive paint. It has
ability to prevent the corrosion from oil and chemical matter. It can be broadly applied to outdoors with bad environment for its contour artistic, easily
installation and maintenance free.

INSULATION OIL

The insulating oil is inhibited, without PCB and generally complies with IEC60296.

STANDARD ACCESSORIES

1. Thermometer
2. Pressure relief valve
3. Oil level gauge
4. Lifting lugs
5. Drain and sampling valve
6. Nameplate
7. Earth terminals
8. Terminal box
9. Over pressure replay


ADVANTAGE:

1. Low loss, low noise, low partial discharge.
2. Strong anti-short circuit capability and high anti-lightning impact level.
3. Excellent moisture resistance for operation at 100% relative humidity.
4. Strong overload capability for long-term operation at 150% loading.


TEST REPROT:

1. ISO 9001 Quality management system certification
2. ISO 14001 Environmental management system certification
3. PCCC  Certificate of qualification
4.National electrical safety quality testing center certificate of qualification
5.Occupational health and safety management system certification
   
 

Process Technology:

Core:

Our transformer's core is made of high quality cold rolled grain oriented silicon steel sheet with high magnetic permeability. It is using full 45° slope lamination, so that the noload loss and the no-load current are reduced efficiently.
We use Simulating Analysis in the core model design, so that we can calculate the frequency and size of the vibration exactly and avoid the core cavity resonance.
Between core & windings, and core & frame, we use spring connection. Then the noise is lower 10 to 15dB than the standard.
 
 

Transformer Winding:

LV Winding:


 
 
HV Winding