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 --- 83/CH9/EX9.4/example_9_4.sce | 35 ++++++++++++++++++++++++++++++ 83/CH9/EX9.4/example_9_4.xcos | 1 + 83/CH9/EX9.4/result_example_9_4.txt | 13 +++++++++++ 83/CH9/EX9.4/xcos_result_example_9_4.jpeg | Bin 0 -> 86311 bytes 4 files changed, 49 insertions(+) create mode 100755 83/CH9/EX9.4/example_9_4.sce create mode 100755 83/CH9/EX9.4/example_9_4.xcos create mode 100755 83/CH9/EX9.4/result_example_9_4.txt create mode 100755 83/CH9/EX9.4/xcos_result_example_9_4.jpeg (limited to '83/CH9/EX9.4') diff --git a/83/CH9/EX9.4/example_9_4.sce b/83/CH9/EX9.4/example_9_4.sce new file mode 100755 index 000000000..21092fd1d --- /dev/null +++ b/83/CH9/EX9.4/example_9_4.sce @@ -0,0 +1,35 @@ +//Chapter 9 +//Example 9.4 +//page 345 +//To calculate maximum MVA +clear;clc; +mvab=50; +kvb=6.6; +mvaA=40; +mvaB=50; +mvaC=25; +feeder_impedance=((0.06+%i*0.12)*mvab)/(kvb^2) + +Gen_A_reactance=(%i*0.1*mvab/mvaA); +Gen_B_reactance=(%i*0.1*mvab/mvaB); +Gen_C_reactance=(%i*0.1*mvab/mvaC); + +printf('\nGenerator A reactance = j%0.3f pu',abs(Gen_A_reactance)); +printf('\nGenerator B reactance = j%0.3f pu',abs(Gen_B_reactance)); +printf('\nGenerator C reactance = j%0.3f pu',abs(Gen_C_reactance)); + +Reactor_A_reactance=(%i*0.12*mvab/mvaA); +Reactor_B_reactance=(%i*0.12*mvab/mvaB); +Reactor_C_reactance=(%i*0.12*mvab/mvaC); + +printf('\nReactor A reactance = j%0.3f pu',abs(Reactor_A_reactance)); +printf('\nReactor B reactance = j%0.3f pu',abs(Reactor_B_reactance)); +printf('\nReactor C reactance = j%0.3f pu',abs(Reactor_C_reactance)); + +function resistance=parallel(r1,r2) +resistance=(r1*r2/(r1+r2)); +endfunction + +Z=(feeder_impedance)+parallel(%i*0.125,(%i*0.15 + parallel(%i*0.22,%i*0.44))); +scmva=(1/abs(Z))*mvab; +printf("\n\nSC MVA = %d MVA",scmva); diff --git a/83/CH9/EX9.4/example_9_4.xcos b/83/CH9/EX9.4/example_9_4.xcos new file mode 100755 index 000000000..c7d6f8df2 --- /dev/null +++ b/83/CH9/EX9.4/example_9_4.xcos @@ -0,0 +1 @@ + \ No newline at end of file diff --git a/83/CH9/EX9.4/result_example_9_4.txt b/83/CH9/EX9.4/result_example_9_4.txt new file mode 100755 index 000000000..0f4efe1d8 --- /dev/null +++ b/83/CH9/EX9.4/result_example_9_4.txt @@ -0,0 +1,13 @@ + + feeder_impedance = + + 0.0688705 + 0.1377410i + +Generator A reactance = j0.125 pu +Generator B reactance = j0.100 pu +Generator C reactance = j0.200 pu +Reactor A reactance = j0.150 pu +Reactor B reactance = j0.120 pu +Reactor C reactance = j0.240 pu + +SC MVA = 211 MVA diff --git a/83/CH9/EX9.4/xcos_result_example_9_4.jpeg b/83/CH9/EX9.4/xcos_result_example_9_4.jpeg new file mode 100755 index 000000000..8fc16bc0e Binary files /dev/null and b/83/CH9/EX9.4/xcos_result_example_9_4.jpeg differ -- cgit