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

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+//Book name: Fundamentals of electrical drives by Mohamad A. El- Sharkawi
+//chapter 9
+//example 9.5
+//edition 1
+//publisher and place:Nelson Engineering
+clc;
+clear;
+Ra=1;//armature resistance in ohm
+KQ=3;//field constant
+V=320;//Terminal voltage in volts
+n=1000;//motor speed in rpm
+omega=(2*%pi*n)/60;
+Ea1=KQ*omega;
+Ia=(V-Ea1)/Ra;//normal field current in ampere
+Ib=2*Ia;//maximum braking current which is twice the armature voltage in A
+Rb=-(V+Ea1+(Ib*Ra))/Ib;//braking resistance
+Rb=abs(Rb);
+mprintf("The maximum braking resistance in ohm is %f",Rb)
+//the answer given in the book is wrong
+
-- 
cgit