(Solved): A shunt generator delivers 450A at 230V and the resistances of the shunt field and armature ...

A shunt generator delivers $450\mathrm{A}$ at $230\mathrm{V}$ and the resistances of the shunt field and armature ara knn sud $n$ non Question 4 A $30\mathrm{kVA},2000/200\mathrm{V}$, single phase transformer has a primary resistance of $3.5\cap$ and reactance of $4.5\Omega$. The secondary resistance and reactance are $0.015\Omega$ and $0.02\Omega$ respectively. Compute: a. the equivalent resistance and reactance referred to the primary [08 marks] b. the full-load primary winding current and equivalent impedance referred to the primary winding [07 marks] c. the total copper losses and windings drop referred to the primary [10 marks] Question 5 A $440\mathrm{V}$, three phase, four pole, $50\mathrm{Hz}$ induction motor is running at $1455\mathrm{rpm}$. If the machine has a stator-rotor ration of 0.8 , determine. a. the synchronous speed b. the sleep speed and the slip c. the rotor induced voltage at standstill and running conditions [05 marks] [10 marks] [10 marks]