1.

 What is the emf equation for generator? 

Answer»

emf = P * φ * Z * N / A * 60 Where, 

φ = Flux per pole in Weber. 

Z = Total number of armature conductors. 

P = Number of poles. 

A = Number of parallel paths in armature. 

N = Speed in rpm. 

emf = emf generated in one parallel path and it is the emf generated of that generator.

For a wave wound generator there are only two (2) parallel paths in the armature. In such cases A=2 and in lap wave wound armature parallel paths is equal to the number of poles in the armature winding.  



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