Sf-50000/69/6.3 50mva 66kv Double-Winding Power Transformers with off-Circuit Tap Changer

• Customization: Available
• Application: Power
• Phase: Three
• Model NO.: sf-50000/69/6.3
• Core: Core-type Transformer
• Cooling Method: Oil-immersed Type Transformer
• Winding Type: Multi-winding Transformer
• Certification: ISO9001-2000, ISO9001
• Usage: Power Transformer
• Frequency Characteristics: Power Frequency
• Shape of Core: Ring
• Brand: Ville
• Power: Hydroelectric (Power) Station
• Transport Package: The Accessories Packed in Plywood Cases,The Main B
• Specification: IEC60076
• Trademark: ville
• Origin: Ningbo China
• HS Code: 8504109000
• Production Capacity: 5000/Year

Product Description

Technical parameters:

Rated Capacity(MVA):	50
Voltage ratio HV(KV):	69
Voltage ratio LV(KV):	6.3
Voltage ratio HV Tapping Range(kv):	± 2 x 2, 5%
Connection symbol:	YND11
No-load Loss(KW):	44
No-load Current(%):	0.4
Full-load Loss(KW):	184.5
Impedance(%):	9

 

Reference Temperature					° C	75
No-Load Losses at Principal Tapping:					W	9.0 kW
Looses of Cooling Fan System					W	/
Insulation Levels (LI/AC):						LI325AC140/LI125AC55
No Load Current:				@ Un	% In	0.56
				@ 1.05 Un	% In	0.68
Sound Level:					dB	< 67
Short Circuit Impedance at Principal Tapping:				P/S	% Un	8~10%
				P/T	% Un
				S/T	% Un
Reference Temperature					° C	75
Top Oil Temperature Rise:					°C	51K
Average Winding Temperature Rise:					°C	64K
Insulation Resistance (Reference Temperature = 20°C):
HV/LV  /					Mohms	≥1000
HV/GR - LV/GR -					Mohms	≥1000

Company Introduction

NingboVille Enterprise Co.,Ltd.is a combination of Transformer R&D center, production, sales and
after sales service,possesses of strong technical strength andexcellent manufacturing equipments, as
well as modern Office facilities. It specially produces large scale power transformer and industrial
transformers of high quality and reliability. A large share of its resources are devoted to research and
development of industrial and special transformers and reactors for any special application,such as the 
iron and steel and electrometallurgical industries.The company main working is suppling,engineering,
designing,manufacturing, executing, and commissioning for transformer .

Why Choose Us

FIRST-CLASS PROCESSING AND TEST EQUIPMENT
We have more than 500 sets of sophisticated, advance production and test equipments, complete and perfect processing 
equipments, and scientific and rational processing technology, which guarantee first-class products, Authorized by the
Bureau of Zhejiang Technology Supervision, Quzhou Fangyuan Inspection Company of Power Transmission and
Transformation Equipment, whick is based on our testing center, undertakes the quality inspection of the industry in our
province, this is a solid guarantee for our excellent product quality.

BEAUTIFUL ENVIRONMENT
We are confident that good products come from good personnel, and good environment makes qualified personnel. The
company is committed to creating a garden-like working environment for employees. We have green belts, modern
standardized workshops and well-planned parks where we sow our youth; we work hard, so we are harvesting the future.

With the first-class quality products, reasonable price and excellent after-sale services.product not only best-selling all
over the country,but also in the international market have higher credit, such as Thailand, Vietnam, Myanmar, Indonesia,
alaysia,Philippines, Ethiopia and Nigeria, Saxonstan, Uzbekistan, Korea, Turkey, Sudan, Iran etc. especially in the steel
enterprises, VILLE production of transformers already have high reputation.

Our advantages:

Quality Assurance

--From the very beginning, VILLE ensures quality in every step to achieve the best quality.

 Experience Sharing

--With more than 30 years' experience in power industry, VILLE brings you an optimized solution.

 Global Service

--Wherever you are, VILLE global network will support and provide you with value.

 Quick Response

--In response to your needs without delay, VILLE  knows the value of your time.

Thanks for choosing VILLE as your reliable partner and
please trust both of us will create a brilliant future!