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 --- 3784/CH4/EX4.44/Ex4_44.sce | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100644 3784/CH4/EX4.44/Ex4_44.sce (limited to '3784/CH4/EX4.44/Ex4_44.sce') diff --git a/3784/CH4/EX4.44/Ex4_44.sce b/3784/CH4/EX4.44/Ex4_44.sce new file mode 100644 index 000000000..4783b1ee0 --- /dev/null +++ b/3784/CH4/EX4.44/Ex4_44.sce @@ -0,0 +1,18 @@ +clc +//Variable Initialisation +Eb2=215//Average Value of Back EMF +Ia=300//Armature Current in Ampere +Ia1=310//Armature Current in Ampere +Ra=0.04//Armature resistance in ohm +N1=610//Rated Speed of Motor in rpm +N2=750//Rated Speed of Motor in rpm +dmin=0.05//Minimum Duty Ratio +//Solution +Eb1=(N2/N1)*Eb2 +Rbe=(Eb1/Ia)-Ra +Rb=Rbe/(1-dmin) +R=Rb*(1-dmin)+Ra +K=Eb2/(2*%pi*N1/60)//The answer provided in the textbook is wrong +T=K*Ia +printf('\n\n Value of Braking Resistor=%0.1f ohm\n\n',Rb) +printf('\n\n Maximum Available Motor Torque=%0.1f N-m\n\n',T) -- cgit