Page 197 - Electrician - TT (Volume 1)
P. 197
ELECTRICIAN - CITS
Types of dc compound generators
Based on physical connections;
Long shunt and short shunt compound generators
Types of dc compound generators
Based on physical connections;
Long shunt and short shunt compound generators
EMF EQUATION OF DC GENERATOR
φ = Flux per pole in web 60 Second
Revolution
N
Z = No. of conductors or coil sides
= 2T [ where T= No. of coils or turns]
N
N = Rotor Speed in r.p.m or r.p.s
60
i.e. Time for 1 Revolution
60
60 Second
N
N Revolution
φP φPN
60 60
N
N
60
φPN Z
60
N 60 a
φP φZN φPN P
60 6060 a 184
N
CITS : Power - Electrician & Wireman - Lesson 30-37
φPN Z
60 a
φZN P
60 a
