From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001 From: priyanka Date: Wed, 24 Jun 2015 15:03:17 +0530 Subject: initial commit / add all books --- 1802/CH10/EX10.7/Exa10_7.sce | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100755 1802/CH10/EX10.7/Exa10_7.sce (limited to '1802/CH10/EX10.7') diff --git a/1802/CH10/EX10.7/Exa10_7.sce b/1802/CH10/EX10.7/Exa10_7.sce new file mode 100755 index 000000000..697082d5b --- /dev/null +++ b/1802/CH10/EX10.7/Exa10_7.sce @@ -0,0 +1,40 @@ +//Exa 10.7 +clc; +clear; +close; +//Given Data : +format('v',7); +//(i) +IMO=200;//in HP(Induction Motor output) +IMO=IMO*0.7355;//in KW(Induction Motor output) +LagEff=90;//in % +LagEff=90/100;//in fraction +MotorIn=IMO/(LagEff);//in KW +cosfi_1=0.75;//powerfactor +tanfi_1=tand(acosd(cosfi_1));//unitless +Pr1=MotorIn*tanfi_1;//in KVAR +//(ii) +P2=300;//in KW +cosfi_2=0.5;//unitless +tanfi_2=tand(acosd(cosfi_2));//unitless +Pr2=P2*tanfi_2;//in KVAR +//(iii) +P3=200;//in KW +cosfi_3=1;//unitless +tanfi_3=0;//unitless +Pr3=0;//in KVAR +//(iv) +PsynMotor=500;//in KW +Eff=93;//in % +Eff=93/100;//in fration +Input=PsynMotor/Eff;//in KW +Pa=MotorIn+P2+P3+PsynMotor;//in KW +P1=Pr1+Pr2+Pr3;//in KVAR +cosfi=1;//unitless +tanfi=0;//unitless +Pr=Pa*tanfi;//in KVAR +Prm=Pr-P1;//in KVAR +tanfi_m=Prm/Input +cosfi_m=cosd(atand(tanfi_m));//unitless +disp(cosfi_m,"P.F. of the motor(lead) :"); +//Note : Answer in the book is wrong \ No newline at end of file -- cgit