From 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 Mon Sep 17 00:00:00 2001
From: prashantsinalkar
Date: Tue, 10 Oct 2017 12:27:19 +0530
Subject: initial commit / add all books

---
 3760/CH3/EX3.40/Ex3_40.sce | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 3760/CH3/EX3.40/Ex3_40.sce

(limited to '3760/CH3/EX3.40/Ex3_40.sce')

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
@@ -0,0 +1,20 @@
+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');
-- 
cgit