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 --- 1319/CH5/EX5.7/5_7.sce | 42 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 1319/CH5/EX5.7/5_7.sce (limited to '1319/CH5/EX5.7/5_7.sce') diff --git a/1319/CH5/EX5.7/5_7.sce b/1319/CH5/EX5.7/5_7.sce new file mode 100644 index 000000000..d96f5696f --- /dev/null +++ b/1319/CH5/EX5.7/5_7.sce @@ -0,0 +1,42 @@ +// Calculate the circuit parameters of a transformer using OC and SC tests + +clc; +clear; + +E1=200; +E2=400; + +n=E2/E1; // Transformation ratio + +// O.C Calculations +V1=200; +Ioc=0.7; +Pi=70; + +R0=(V1^2)/Pi; + +Iw=V1/R0; + +Im=sqrt((Ioc^2)-(Iw^2)); + +X0=V1/Im; + +//S.C Calculations on HT side + +Pc=80; +I=10; +V=15; + +Rth= Pc/(I^2); +Z=V/I; + +Xth=sqrt((Z^2)-(Rth^2)); + +// Both these value are referred to HT side, but the answer is required to be referred to LT side + +Xtl=Xth/(n^2); // Reactance referred to LT side +Rtl=Rth/(n^2); // Resistance referred to LT side + +printf('The Circuit parameters referred to LT side is as follows \n') + +printf('Ro = %f ohms \n Xo = %f ohms \n Rt = %f ohms \n Xt = %f ohms \n',R0,X0,Rtl,Xtl) -- cgit