A long shunt compound generator supplies 100 A at a terminal voltage of 250 V. The resistance of the armature, shunt field and series field are respectively 0.02?,50? 0.05? The bhp of the driving engine is 38 Calculate the stray power losses.

To calculate the stray power losses in a long shunt compound generator, we need to follow these steps:<br /><br />1. Calculate the total current flowing through the generator:<br /> I_total = I_armature + I_series + I_shunt<br /> I_total = 100 A<br /><br />2. Calculate the voltage drop across the armature resistance:<br /> V_armature = I_total * R_armature<br /> V_armature = 100 A * 0.02 Ω<br /> V_armature = 2 V<br /><br />3. Calculate the voltage drop across the shunt field resistance:<br /> V_shunt = I_shunt * R_shunt<br /> V_shunt = 100 A * 50 Ω<br /> V_shunt = 5000 V<br /><br />4. Calculate the voltage drop across the series field resistance:<br /> V_series = I_series * R_series<br /> V_series = 100 A * 0.05 Ω<br /> V_series = 5 V<br /><br />5. Calculate the total voltage drop:<br /> V_drop = V_armature + V_shunt + V_series<br /> V_drop = 2 V + 5000 V + 5 V<br /> V_drop = 5007 V<br /><br />6. Calculate the stray power losses:<br /> Stray power losses = V_drop * I_total<br /> Stray power losses = 5007 V * 100 A<br /> Stray power losses = 500700 W or 500.7 kW<br /><br />Therefore, the stray power losses in the long shunt compound generator are 500.7 kW.