engineering recuitment GATE EE 2023-24 Test Series Electrical Machines Transformer Three Phase Transformer Connections
A 50 Hz, 3ϕ core type star-delta transformer has a line valtage ratio of 11,000/440 volts. The cross-section of the core is square with a circumscribing circle of 0.5 m diameter. If maximum flux density of 1.30 ωb/m2 then find the number of turns per phase on high voltage windings. Assume insulation occupies 8% of the total core area.
Enter numerical value using the virtual keypad. Round off where necessary.