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 --- 2276/CH9/EX9.10/chapter9_ex10.sce | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100755 2276/CH9/EX9.10/chapter9_ex10.sce (limited to '2276/CH9/EX9.10') diff --git a/2276/CH9/EX9.10/chapter9_ex10.sce b/2276/CH9/EX9.10/chapter9_ex10.sce new file mode 100755 index 000000000..c01ff232d --- /dev/null +++ b/2276/CH9/EX9.10/chapter9_ex10.sce @@ -0,0 +1,27 @@ +clc +clear + +//input +kva=10;//kVA rating of the transformer +vp=400;//voltage on primary side in volts +vs=230;//voltage on secondary side in volts +//short circuit test +ppd1=18;//primary p.d. in volts +ip1=25;//primary current in amperes +inp1=120;//power input in watts +//short circuit test +ppd2=400;//primary p.d. in volts +ip2=0.5;//primary current in amperes +inp2=70;//power input in watts + +//calculations +zp=ppd1/ip1;//equivalent primary impedance in ohms +rp=inp1/(ip1^2);//equivalent resistance in ohms +xp=((zp^2)-(rp^2))^0.5;//equivalent leakage reactance in ohms +r0=(vp^2)/(1000*inp2);//resistance of parallel circuit +phi=sin(acos(inp2/(vp*ip2)));//sine of power factor +im=ip2*phi;//magnetizing current in amperes +x0=vp/im;//reactance in ohms + +//output +mprintf('the equivalent circuit parameters are \n Rp=%3.3f ohms \n Xp=%3.3f ohms \n r0=%3.3f kilo ohms \n x0=%3.1f ohms',rp,xp,r0,x0) -- cgit