Sf-40000/69/6.3 40mva 66kv Double-Winding Power Transformers with off-Circuit Tap Changer Distribution Transformer

• Customization: Available
• Application: Power
• Phase: Three
• Model NO.: sf-40000/69/6.3
• 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):	40
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):	36.8
No-load Current(%):	0.4
Full-load Loss(KW):	148.9
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

Order Instructions
When you choose our company product, please offer following data:
Transformer model:                     
Rated capacity:                     kVA
Phase       :    Three-phase
Single-phase
Frequency   :     50HZ
 60HZ
Rated voltage ( H.V. / L.V. ):                
Tapping range: ±       ×       %
Insulation level: LI       AC       / LI       AC        kv
Veotor group:  Dyn11
             Yyno
             Other
Short-circuit Impedance:        %
Cooling method:  ONAN
                ONAF
Tapping method:  OLTC
                OCTC
                Other
Other requirement:                                            

Notes:
We also can design special products according to customer's particular requirements.
The final dimension is subject to outline drawing.