engineering recuitment NMDC Junior Officer (Trainee) Mock Test 2024 Electrical Machines Alternator and Synchronous Motors Alternator Basic Principle
A three phase star connected alternator develops an rms voltage of V1 per phase at the fundamental frequency. It also generates a third harmonic component whose rms value is V3 . What is the line voltage of the alternator?
1
\(\sqrt {3(V_1^2 + V_3^2)}\)
2
\(\sqrt {(V_1^2 + V_3^2)}\)
3
\(\dfrac{\sqrt {V_1^2 + V_3^2}}{\sqrt 3}\)
4
\(\sqrt {2(V_1^2 + V_3^2)}\)