Power transformer, transformer, oil immersed power transformer
The products of this series feature low loss, low noise, low local discharge, low temperature rise, the core-suspension free performance and no leakage.
Functional characteristics
Rated Capacity (KVA): 50~63000 KVA
Vecor Group: Dyn11, Yyn0, yd11, Ynd11(Or as customer requirement)
Impedance Voltage (%): 6%, 7%, 8%, 10%(Or as customer requirement)
Rated voltage: H. V.: 66, 38.5, 33, 20 KV (Or as customer requirement)
L. V.: 11, 10.5, 6.3, 0.4 KV (Or as customer requirement)
Tapping range: +/- 5% or +/- 2 * 2.5% (Or as customer requirement)
Frequency: 50Hz
Number of phases: 3
Cooling method: ONAN or ONFN
Temperature rise limits: Winding ≤ 65K
Top oil ≤ 60K
Standards: GB1094 Power transformer
GB/T6451 Technical data & requirement of three-phase oil immersed power transformer
IEC60076 Power transformer

Service conditions
The height above the sea level is below 1000m;
Ambient temperature:
Highest air temperature +40 degree;
Highest daily average air temperature+30 degree;
Highest annual average air temperature +20 degree
Lowest outdoor air temperature -25 degree.