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 --- 2642/CH8/EX8.7/Ex8_7.sce | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100755 2642/CH8/EX8.7/Ex8_7.sce (limited to '2642/CH8/EX8.7/Ex8_7.sce') diff --git a/2642/CH8/EX8.7/Ex8_7.sce b/2642/CH8/EX8.7/Ex8_7.sce new file mode 100755 index 000000000..d2e439103 --- /dev/null +++ b/2642/CH8/EX8.7/Ex8_7.sce @@ -0,0 +1,27 @@ +// FUNDAMENTALS OF ELECTICAL MACHINES +// M.A.SALAM +// NAROSA PUBLISHING HOUSE +// SECOND EDITION + +// Chapter 8 : STARTING, CONTROL AND TESTING OF AN INDUCTION MOTOR +// Example : 8.7 + +clc;clear; // clears the console and command history + +// Given data +P_1 = 6 // number of pole +P_2 = 4 // number of pole +f =50 // supply frequency in Hz +P = 60 // power in kW + +// caclulations +s = P_2/(P_1+P_2) // combined slip +N_cs = 120*f/(P_1+P_2) // combined synchronous speed in rpm +P_0 = P*(P_2/(P_1+P_2)) // o/p of 4-pole motor in kW + +// display the result +disp("Example 8.7 solution"); +printf(" \n Combined slip \n s = %.1f \n", s ); +printf(" \n Combined synchronous speed \n N_cs = %.0f rpm \n", N_cs ); +printf(" \n Out-power of 4-pole motor \n P_0 = %.f kW \n", P_0 ); + -- cgit