1 files changed, 11 insertions, 0 deletions
diff --git a/1067/CH20/EX20.23/20_23.sce b/1067/CH20/EX20.23/20_23.sce
new file mode 100755
index 000000000..49d221a84
--- /dev/null
+++ b/1067/CH20/EX20.23/20_23.sce
@@ -0,0 +1,11 @@
+clear;
+clc;
+v=400e3;
+mvan=30000e6;
+mw=1500e6;
+mvac=600e6;
+n=mvan/mw;
+mvae=mvan-mvac;////the difference in result is due to erroneous calculation in textbook.
+e=mvae/mw;
+mprintf("the SC raio=%d\neffective fault level=%fMVA\neffective circuit level of HVDC system(ESCR)=%f",n,mvae/1e6,e);
+disp('the difference in result is due to erroneous calculation in textbook.');