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authorkinitrupti2017-05-12 18:40:35 +0530
committerkinitrupti2017-05-12 18:40:35 +0530
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-{
- "cells": [
- {
- "cell_type": "markdown",
- "metadata": {},
- "source": [
- "# CHAPTER_8-Load Characteristics Of DC Motors"
- ]
- },
- {
- "cell_type": "markdown",
- "metadata": {},
- "source": [
- "## Example 8.3 Page Dc-111"
- ]
- },
- {
- "cell_type": "code",
- "execution_count": 1,
- "metadata": {
- "collapsed": false
- },
- "outputs": [
- {
- "name": "stdout",
- "output_type": "stream",
- "text": [
- "speed of motion at half the torque= 1444.17 rpm\n"
- ]
- }
- ],
- "source": [
- "import math\n",
- "\n",
- "#variable declaration\n",
- "U=230 #voltage(V)\n",
- "Ia1=155 #current(A)\n",
- "Rm_Rse=0.1#armature resistance(ohm)\n",
- "N1=1000 #speed(rpm)\n",
- "\n",
- "#calculation\n",
- "Ia2=round(Ia1/math.sqrt(2),1) #current(A)\n",
- "Eb1=U-(Ia1*Rm_Rse) #voltage(V)\n",
- "Eb2=U-(Ia2*Rm_Rse) #voltage(V)\n",
- "N2=(Eb2/Eb1)*(Ia1/Ia2)*N1\n",
- "print 'speed of motion at half the torque=',round(N2,2),'rpm'"
- ]
- }
- ],
- "metadata": {
- "kernelspec": {
- "display_name": "Python 2",
- "language": "python",
- "name": "python2"
- },
- "language_info": {
- "codemirror_mode": {
- "name": "ipython",
- "version": 2
- },
- "file_extension": ".py",
- "mimetype": "text/x-python",
- "name": "python",
- "nbconvert_exporter": "python",
- "pygments_lexer": "ipython2",
- "version": "2.7.11"
- }
- },
- "nbformat": 4,
- "nbformat_minor": 0
-}