initial commit / add all books

1 files changed, 24 insertions, 0 deletions

diff --git a/416/CH12/EX12.5/example12_5.sce b/416/CH12/EX12.5/example12_5.sce
new file mode 100755
index 000000000..1c4d5df5a
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+++ b/416/CH12/EX12.5/example12_5.sce
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+clc

+clear

+disp('example 12 5')

+po=5 //mva rating

+v=10 //voltage in kv

+n=1500;ns=n/60 //speed

+f=50 //freaquency

+pfb=0.8//power factor in b

+x=0.2*%i //reactance of machine

+md=0.5 //machanical displacement

+//no load

+v=1;e=1;

+p=4

+spu=v*e/abs(x);sp=spu*po*1000;mt=(%pi*p)/(180*2)

+spm=sp*mt //synchronous power in per mech.deree

+st=spm*md*1000/(2*ns*%pi)

+disp('(a)')

+printf(" synchronous power %dkW \n synchronous torque for %.1f displacement %dN-M",spm,md,st)

+disp('(b) full load')

+ee=e+x*(pfb-sind(acosd(pfb))*%i)

+spb=v*abs(ee)*cosd(atand(imag(ee)/real(ee)))/abs(x)  //synchronous power 

+sppm=spb*po*1000*mt //synchronous power per mech.degree

+stp=sppm*md*1000/(2*%pi*ns)//synchrounous torque under load

+printf(" synchronous power %dkW \n synchronous torque for %.1f displacement %dN-M",sppm,md,stp)