From 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 Mon Sep 17 00:00:00 2001
From: prashantsinalkar
Date: Tue, 10 Oct 2017 12:27:19 +0530
Subject: initial commit / add all books

---
 147/CH14/EX14.21/Example14_21.sce | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 147/CH14/EX14.21/Example14_21.sce

(limited to '147/CH14/EX14.21/Example14_21.sce')

diff --git a/147/CH14/EX14.21/Example14_21.sce b/147/CH14/EX14.21/Example14_21.sce
new file mode 100644
index 000000000..cbf75c692
--- /dev/null
+++ b/147/CH14/EX14.21/Example14_21.sce
@@ -0,0 +1,21 @@
+close();
+clear;
+clc;
+//frequency of induction motor 'f', number of poles 'p'
+f1 = 60; //Hz
+p = 4;
+P = 120*1000; //W
+f2 = 3; //Hz
+s = f2/f1;
+//synchronous speed 'ns'
+ns = 120*f1/p; //rpm
+
+//(a)
+//rotor speed 'n'
+n = (1-s)*ns; //rpm
+mprintf("(a) The rotor speed, n = %d rpm\n\n",round(n));
+
+//(b)
+//rotor copper losses 'Pc'
+Pc = s*P; //W
+mprintf("(b) The rotor copper losses, Pc = %d kW",Pc/1000);
\ No newline at end of file
-- 
cgit