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

---
 2252/CH23/EX23.20/Ex23_20.sce | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100755 2252/CH23/EX23.20/Ex23_20.sce

(limited to '2252/CH23/EX23.20')

diff --git a/2252/CH23/EX23.20/Ex23_20.sce b/2252/CH23/EX23.20/Ex23_20.sce
new file mode 100755
index 000000000..c6224e7e5
--- /dev/null
+++ b/2252/CH23/EX23.20/Ex23_20.sce
@@ -0,0 +1,18 @@
+
+V=400//phase voltage applied to motor
+//when started directly on line
+Iph=25//phase current
+Il=sqrt(3)*Iph
+mprintf("Line current drawn by the motor when started directly on line=%f A\n",Il)
+//when started with auto-transformer starter with a tapping percent of 60 percent
+Vl=.6*V//line voltage
+Vph=Vl//phase voltage
+Iph=25//phase current
+Ist=Iph*Vph/V
+Il=sqrt(3)*Ist
+mprintf("When started with auto-transformer starter with a tapping of 60 percent\nPhase starting current =%f A\nLine starting current=%f A\n",Ist,Il)
+//when started with star-delta starter
+Vph=V/sqrt(3)//phase voltage
+I=Iph*Vph/V
+Il=I
+mprintf("When started with star-delta starter\nPhase starting current =%f A\nLine starting current=%f A",I,Il) 
-- 
cgit