Which winding of the transformer has more cross-sectional area?
Which winding of the transformer has more cross-sectional area?
Right Answer is:
Low Voltage Winding
SOLUTION
- The number of turns on the primary and secondary windings depends upon their respective voltages.
- We know that current density is defined as the ratio of current to perpendicular cross-section area through which current is crossing.
- The value of the current density of LV winding is less in comparison to HV winding
- LV winding is placed near to the core in Comparison to HV winding which is placed far from the core.
- Current density is inversely proportional to the area of the core so the thick wire is used for LV winding.
- Also as the resistance of winding is inversely proportional to the area of cross-section, the area of Low voltage winding is high compared to low voltage winding.
- Therefore LV winding has a high cross-sectional area as it carries a higher current compared to high voltage winding