initial commit / add all books

1 files changed, 20 insertions, 0 deletions

diff --git a/3760/CH3/EX3.40/Ex3_40.sce b/3760/CH3/EX3.40/Ex3_40.sce
new file mode 100644
index 000000000..32f2f8b04
--- /dev/null
+++ b/3760/CH3/EX3.40/Ex3_40.sce
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+clc;

+T=80; // total duration 

+t1=5-0; // duration of first increasing loading period

+t2=36-5; // duration of second increasing loading period

+t3=39-36; // duration of first decreasing loading period

+t4=55-39; // duration of second decreasing loading period

+t5=80-55; // duration of uniform loading

+l1=150; // initial load

+l2=1000; // load at 5th sec

+l3=1400; // load at 36th sec

+l4=300; // load at 39th sec

+l5=150; // load during uniform loading

+T1=(t1/3)*(l1^2+l2^2+l1*l2); // term 1 for evaluating rms power

+T2=(t2/3)*(l2^2+l3^2+l2*l3); // term 2 for evaluating rms power

+T3=(t3/3)*(l3^2+l4^2+l3*l4); // term 3 for evaluating rms power

+T4=(t4/3)*(l4^2+l5^2+l4*l5); // term 4 for evaluating rms power

+T5=t5*l5^2; // term 5 for evaluating rms power

+R=sqrt((1/T)*(T1+T2+T3+T4+T5));

+printf('As per the load time graph rating is %f KW',R); 

+disp('Choose a motor of rating above the calculated rating');