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 --- 1118/CH2/EX2.1/eg2_1.sce | 11 +++++++++++ 1118/CH2/EX2.2/eg2_2.sce | 15 +++++++++++++++ 1118/CH2/EX2.3/eg2_3.sce | 31 +++++++++++++++++++++++++++++++ 1118/CH2/EX2.4/eg2_4.sce | 18 ++++++++++++++++++ 1118/CH2/EX2.5/eg2_5.sce | 13 +++++++++++++ 5 files changed, 88 insertions(+) create mode 100755 1118/CH2/EX2.1/eg2_1.sce create mode 100755 1118/CH2/EX2.2/eg2_2.sce create mode 100755 1118/CH2/EX2.3/eg2_3.sce create mode 100755 1118/CH2/EX2.4/eg2_4.sce create mode 100755 1118/CH2/EX2.5/eg2_5.sce (limited to '1118/CH2') diff --git a/1118/CH2/EX2.1/eg2_1.sce b/1118/CH2/EX2.1/eg2_1.sce new file mode 100755 index 000000000..7d675feea --- /dev/null +++ b/1118/CH2/EX2.1/eg2_1.sce @@ -0,0 +1,11 @@ +clear; +clc; +//i=p/v; +//a=i/alpha; +//vol=2*l*a; + +//calculating itf or the 2 supplies 250V and 400V +//a=v2/v1; +a=.625; +sav=(1-a)*100; +printf("the percenatge saving in the conductor material is:%.2f per cent",sav); diff --git a/1118/CH2/EX2.2/eg2_2.sce b/1118/CH2/EX2.2/eg2_2.sce new file mode 100755 index 000000000..e3a892926 --- /dev/null +++ b/1118/CH2/EX2.2/eg2_2.sce @@ -0,0 +1,15 @@ +clear; +clc; + +//i1=p/v +//line loss=2i^2*r +//vol of conductor required v1=2*l*a1 + +a=1/6; //a=r1/r2 +b=1/a //b=a2/a2 + +//v2=3*l*a2+ 0.5*l*a2 +//v2/v1=3.5*l*a2/2*l*a1 + +c=3.5/(2*b); //c=v2/v1 +printf("the ratio of the volumes of the conductors is:%.2f",c); diff --git a/1118/CH2/EX2.3/eg2_3.sce b/1118/CH2/EX2.3/eg2_3.sce new file mode 100755 index 000000000..62d8f480e --- /dev/null +++ b/1118/CH2/EX2.3/eg2_3.sce @@ -0,0 +1,31 @@ +clear; +clc; + +s=5*10^6; +l=50*10^3; +pf=0.8; +eff=.9; +v=33*10^3; +rho=2.85*10^(-8); +pl=0.1*s*pf; +i=s/v; +a1=2*i*i*rho*l/pl; +vol=2*l*a1; +printf("the volume of theconductor required is:%.2f cubic meter",vol); + +//b) + +il=s/(sqrt(3)*v); +a2=3*il*il*rho*l/pl; + +vol=3*l*a2 +printf("\n the volume of theconductor required is:%.2f cubic meter",vol); + + + + + + + + + diff --git a/1118/CH2/EX2.4/eg2_4.sce b/1118/CH2/EX2.4/eg2_4.sce new file mode 100755 index 000000000..e0858363d --- /dev/null +++ b/1118/CH2/EX2.4/eg2_4.sce @@ -0,0 +1,18 @@ +clear; +clc; + +//a). single phase supply +//p1=v1*i1*pf +//line loss= 2*i1*i1*r +//percentage line loss=line loss*100/(v8i*pf) + +//b).three phase supply +//p3=sqrt(3)*v*i3*pf +//percentage line loss=3*i3*i3*r*100/p3 + +//ratio of load transmitted + +a=2; //a=p3/p1 +add_load=(a-1)*100; //(p3-p1)/p1 + +printf("the percentage of additional load is:%.2f",add_load); diff --git a/1118/CH2/EX2.5/eg2_5.sce b/1118/CH2/EX2.5/eg2_5.sce new file mode 100755 index 000000000..038046bc0 --- /dev/null +++ b/1118/CH2/EX2.5/eg2_5.sce @@ -0,0 +1,13 @@ +clear; +clc; + +rhoa=2.85 +rhoc=1.70; +sig1=2.71; +sig2=8.89; + +a=sqrt(rhoa/rhoc); //a=diameter of aluminium/diameter of copper +printf("the ratio of diameters is:%.2f\n",a); +b=sig1*rhoa/(sig2*rhoc); //weight of aluminium/weight of copper + +printf("the ratio of weights is:%.2f",b); -- cgit