A short-shunt compound generator delivers a load current of 30 A at 220 V, and has armature, series-field and shunt-field resistances of 0.05 Ω, 0.30 Ω and 200 Ω respectively. Calculate the induced emf and the armature current. Allow 1.0 V per brush for contact drop.

A Short Shunt Compound Wound Generator is a type of dc generator in which the shunt field winding is connected in parallel with the armature winding only.

The circuit diagram of short-shunt compound generator mentioned in the problem is given below

Short Shunt Compound DC Generator

Voltage drop in series winding = 30 × 0.3 = 9 V

Voltage across shunt winding = 220 + 9 = 229 V

I_sh = 229/200 = 1.145 A

I_a = 30 + 1.145 = 31.145 A

I_aR_a = 31.145 × 0.05 = 1.56 V

Brush drop = 2 × 1 = 2 V

E_g = V + series drop + brush drop + I_aR_a
= 220 + 9 + 2 + 1.56 = 232.56 V