summaryrefslogtreecommitdiff
path: root/3574/CH6/EX6.4/EX6_4.sce
diff options
context:
space:
mode:
Diffstat (limited to '3574/CH6/EX6.4/EX6_4.sce')
-rw-r--r--3574/CH6/EX6.4/EX6_4.sce41
1 files changed, 41 insertions, 0 deletions
diff --git a/3574/CH6/EX6.4/EX6_4.sce b/3574/CH6/EX6.4/EX6_4.sce
new file mode 100644
index 000000000..78eb2ca49
--- /dev/null
+++ b/3574/CH6/EX6.4/EX6_4.sce
@@ -0,0 +1,41 @@
+// Example 6.4
+// Computation of (a) Motor line current and motor phase current (b) Motor line
+// current and motor phase current if one line opens (c) Line and phase
+// currents if the power factor when single phasing is 82.0 percent.
+// Page No. 274
+
+clc;
+clear;
+close;
+
+// Given data
+Vline=2300; // Line voltage
+Fp3ph=3; // Frequency of three phase
+PF=0.844; // Power factor
+PF1=0.820; // 82.2 percent power factor
+Pin=350*746/(0.936*2); // Input power
+
+
+// (a) Motor line current and motor phase current
+
+Iline3ph=Pin/(sqrt(3)*Vline*PF);
+Iphase3ph=Iline3ph;
+
+//(b) Motor line current and motor phase current if one line opens
+
+Iline1ph=(sqrt(3)*Iline3ph*PF)/PF;
+Iphase1ph=Iline1ph;
+
+// (c) Line and phase currents if the power factoe when single phasing is 82.0 percent.
+
+Iline=(Iline1ph*PF)/PF1;
+Iphase=Iline;
+
+// Display result on command window
+printf("\n Motor line current = %0.1f A ",Iline3ph);
+printf("\n Motor phase current = %0.1f A ",Iphase3ph);
+printf("\n Motor line current if one line opens = %0.1f A ",Iline1ph);
+printf("\n Motor phase current if one line opens = %0.1f A ",Iphase1ph);
+printf("\n Line current if the power factor is 82.0 percent = %0.1f A",Iline);
+printf("\n Phase current if the power factor is 82.0 percent = %0.1f A ",Iphase);
+