Question

Derive an expression for emf inducted in a dc generator

Answer 1

Derivation of EMF Equation of a DC Machine – Generator and Motor

Let,

P – Number of poles of the machine

ϕ – Flux per pole in Weber.

Z – Total number of armature conductors.

N – Speed of armature in revolution per minute (r.p.m).

A – Number of parallel paths in the armature winding.