Power Tansformer
Power Tansformer
Power Tansformer
High short-circuit impedance between two LV windings, but the respect impedances between two LV windings and HV winding are equal and low.
HV winding is located between two LV windings with balance force, which enhances the ability of shortcircuit withstand.
NN NO
10-35kV
DISTRIBUTION TRANSFORMER
The transformers are in accordance with National Standards IEC. The voltage regulation
range is 10 4 2.5% kV for 10kV class and 35 3 2.5% for 35kV class. Voltage
regulation is effected by adjusting the on-load tap-changer on the high voltage side.
Adjustment can be made manually or motor-operated, and in the latter case automatic
regulation is also possible through additional devices. Such transformers can keep the
output voltage on the secondary side at a required stable level. The tank wall of more
than 35kV 3150kVA transformer is made into a corrugated shape. Thus, mechanical
strength is much improved, and weldding work reduced, and the outlook appearance is