ELECTRICIAN - CITS Separately excited. DC series generator Ia = If = I L Rf ,Rse, RL Eg I Rf Ra RL C VI I x RL = Vt = Eg – I (Ra +Rf B EgIa B EgIa A BHP 746 C VI A BHP 746 186 CITS : Power - Electrician & Wireman - Lesson 30-37