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 --- 3811/CH3/EX3.8/Ex3_8.jpg | Bin 0 -> 34320 bytes 3811/CH3/EX3.8/Ex3_8.sce | 28 ++++++++++++++++++++++++++++ 2 files changed, 28 insertions(+) create mode 100644 3811/CH3/EX3.8/Ex3_8.jpg create mode 100644 3811/CH3/EX3.8/Ex3_8.sce (limited to '3811/CH3/EX3.8') diff --git a/3811/CH3/EX3.8/Ex3_8.jpg b/3811/CH3/EX3.8/Ex3_8.jpg new file mode 100644 index 000000000..ab1f1052f Binary files /dev/null and b/3811/CH3/EX3.8/Ex3_8.jpg differ diff --git a/3811/CH3/EX3.8/Ex3_8.sce b/3811/CH3/EX3.8/Ex3_8.sce new file mode 100644 index 000000000..0dbe554c8 --- /dev/null +++ b/3811/CH3/EX3.8/Ex3_8.sce @@ -0,0 +1,28 @@ +//Book name: Fundamentals of electrical drives by Mohamad A. El- Sharkawi +//chapter 3 +//example 3.8 +//edition 1 +//publisher and place:Nelson Engineering +clc; +clear; +Vab=208;//source voltage in volts +Vs=Vab/3^(1/2);//rms voltage in volts +Vm=Vs*2^(1/2);//maximum peak voltage in volts +R=10;//resistance of the circuit in ohm +a1=80;//triggering angle 1 in degree +a2=30;//triggering angle 2 in degree +if a1<60 then + disp(a1,'The current is discontinous') +else if (a2>60) + disp(a2,'The current is discontinous') +end +disp('To find the power delivered at a1=80 degree:') +B1=180; +p=(((3*Vm^(2))/(8*%pi*10))*(2*(B1-a1)*(%pi/180)+sind(2*a1)-sind(2*B1)));//power delivered when triggering angle a1=180 degree +P=p*10^-3;//power interms of kilowatt +disp(P,'The power delivered at the triggering angle 80 degree in kilowatt is') +disp('To find the power delivered at a2=30 degree:') +B2=120+a2; +p1=(((3*Vm^(2))/(8*%pi*10))*(2*(B2-a2)*(%pi/180)+sind(2*a2)-sind(2*B2)));//power delivered when triggering angle a2=30 degree +P1=p1*10^-3;//power interms of kilowatt +disp(P1,'The power delivered at the triggering angle 80 degree in kilowatt is') -- cgit