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// Examle 15.6
po=5*746; // O/p power
n=0.875; // Efficiency of motor at no load
pin=round(po/n); // I/p power
p1=pin-po; // Total losses
pm=0.05*p1; // Mechanical losses
pe=p1-pm; // Electrical losses
pd=po+pm; // Devlopment power
disp(' Devlopment power = '+string(pd)+' Watt');
f=50; // Frequency
p=4; // No.Of poles
Ns=(120*f)/p; // Synchronous speed
N=1470; // No.Of Revolution in rmp
s=(Ns-N)/Ns; // The Slip
pg=pd/(1-s); // Air-gap power
disp(' Air-gap power = '+string(pg)+' Watt');
pr=s*pg; // Rotor copper loss
disp(' Rotor copper loss = '+string(pr)+' Watt');
ps=pin-pg; // Stator loss
disp(' Stator loss = '+string(ps)+' Watt');
// p 598 15.6
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