engineering recuitment BSPHCL JE Electrical 2024 Mock Test Electrical Machines Transformer Transformer on No Load
In order to minimize the inrush current in a single-phase transformer, the supply switch should be closed at the instant when:
1
supply voltage is \(\dfrac{1}{2}\) times the maximum voltage
2
supply voltage is \(\dfrac{1}{\sqrt2}\) times the maximum voltage
3
supply voltage is maximum
4
supply voltage is zero