{ "cells": [ { "cell_type": "markdown", "metadata": {}, "source": [ "# Chapter 17: AC Commutator Motors" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "## Example 17.1: Find_Speed_And_Power_factor_of_motor.sce" ] }, { "cell_type": "code", "execution_count": null, "metadata": { "collapsed": true }, "outputs": [], "source": [ "//Caption:Find (a)Speed (b)Power factor of motor\n", "//Exa:17.1\n", "clc;\n", "clear;\n", "close;\n", "r=25//Resistance of motor(in ohms)\n", "P=2//Number of poles\n", "l=0.4//Inductance of motor(in henry)\n", "n=1800//Speed of motor(in r.p.m)\n", "V=230//Voltage supplied(in volts)\n", "Il=1//Load current(in A)\n", "f=50//Frequency(in hertz)\n", "fr=(P*n)/120\n", "Eb=V-(r*Il)\n", "Er=Eb/fr\n", "fac=(sqrt((V^2)-((Il*2*(%pi)*f*l)^2))-(Il*r))/Er\n", "n=fac*(120/P)\n", "disp(n,'(a)Speed(in rpm)=')\n", "pf=sqrt((V^2)-((Il*2*(%pi)*f*l)^2))/V\n", "disp(pf,'(b)Power factor=')" ] } ], "metadata": { "kernelspec": { "display_name": "Scilab", "language": "scilab", "name": "scilab" }, "language_info": { "file_extension": ".sce", "help_links": [ { "text": "MetaKernel Magics", "url": "https://github.com/calysto/metakernel/blob/master/metakernel/magics/README.md" } ], "mimetype": "text/x-octave", "name": "scilab", "version": "0.7.1" } }, "nbformat": 4, "nbformat_minor": 0 }