12.5 Mva 66kv Dual Winding Power Transformer with Offline Tap Changer

Technical parametersRated Capacity(MVA):12.5Voltage ratio HV(KV): 69Voltage ratio LV(KV): 6.3Voltage ratio HV Tapping Range(kv):± 2 x 2, 5%Connection symbol:YND11No-load Loss(KW):15.6No-load Current(%):0.55Full-load Loss(KW):59.8Impedance(%):9 Reference Temperature ° C75No-Load 

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Technical parameters
Rated Capacity(MVA):12.5
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):15.6
No-load Current(%):0.55
Full-load Loss(KW):59.8
Impedance(%):9

12.5 Mva 66kv Double-Winding Power Transformers with off-Circuit Tap-Changer
12.5 Mva 66kv Double-Winding Power Transformers with off-Circuit Tap-Changer
12.5 Mva 66kv Double-Winding Power Transformers with off-Circuit Tap-Changer
 
Reference Temperature ° C75
No-Load Losses at Principal Tapping:W9.0 kW
Looses of Cooling Fan SystemW/
Insulation Levels (LI/AC):LI325AC140/LI125AC55
No Load Current:@ Un% In0.56
@ 1.05 Un% In0.68
Sound Level: dB< 67
Short Circuit Impedance at Principal Tapping:P/S% Un8~10%
P/T% Un 
S/T% Un 
Reference Temperature ° C75
Top Oil Temperature Rise:°C51K
Average Winding Temperature Rise: °C64K
Insulation Resistance (Reference Temperature = 20°C):
HV/LV  /Mohms ≥1000
HV/GR - LV/GR -Mohms≥1000

12.5 Mva 66kv Double-Winding Power Transformers with off-Circuit Tap-Changer

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