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 --- 1418/CH26/EX26.24.b/EX26_24b.jpg | Bin 0 -> 91911 bytes 1418/CH26/EX26.24.b/EX26_24b.sce | 22 ++++++++++++++++++++++ 2 files changed, 22 insertions(+) create mode 100644 1418/CH26/EX26.24.b/EX26_24b.jpg create mode 100644 1418/CH26/EX26.24.b/EX26_24b.sce (limited to '1418/CH26/EX26.24.b') diff --git a/1418/CH26/EX26.24.b/EX26_24b.jpg b/1418/CH26/EX26.24.b/EX26_24b.jpg new file mode 100644 index 000000000..2103fca00 Binary files /dev/null and b/1418/CH26/EX26.24.b/EX26_24b.jpg differ diff --git a/1418/CH26/EX26.24.b/EX26_24b.sce b/1418/CH26/EX26.24.b/EX26_24b.sce new file mode 100644 index 000000000..92c1c2c27 --- /dev/null +++ b/1418/CH26/EX26.24.b/EX26_24b.sce @@ -0,0 +1,22 @@ +//EXAMPLE 26.24(b) +//DC SHUNT MOTOR + +clc; +funcprot(0); + +//Variable Initialisation +V=500;..............................//Terminal voltage in Volts +Il=5;..............................//Line current in Amperes +Ra=0.15;...........................//Armature resistance in Ohms +Rf=200;.............................//Field resistance in Ohms +I=40;...............................//Load current in Amperes + +Ia=Il/2;..........................//Armature current in Amperes +Lame=V*Ia;........................//Armature core loss and no load mechanical loss at rated speed in Watts +Ita=I+Ia;.............................//Total current for armature in Amperes +Lt=((Lame*2)+(Ra*Ita^2));................//Total losses in Watts +Po=V*I*10^-3;................................//Output power in Kilo Watts +y=round(Lt)/1000;...................................//Rounding of decimal places to Kilo Watts +eff=Po*100/(Po+y);....................................//Efficiency in percentage +y1=round(eff*100)/100; +disp(y1,"Efficiency in percentage:"); -- cgit