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+{
+ "metadata": {
+ "name": ""
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+ {
+ "cells": [
+ {
+ "cell_type": "heading",
+ "level": 1,
+ "metadata": {},
+ "source": [
+ "APPENDIX A-3: APPLICABLE SECTIONS OF THE NATIONAL ELECTRIC CODE(NEC)"
+ ]
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 1, Page number 594"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#Variable declaration\n",
+ "hp = 5.0 #Power rating of motor(hp)\n",
+ "V = 220.0 #Voltage rating of motor(V)\n",
+ "Va_a = 180.0 #Armature voltage(V)\n",
+ "Va_b = 240.0 #Armature voltage(V)\n",
+ "\n",
+ "#Calculation\n",
+ "I1 = 27.0 #Current(A). From Appendix A-3 table for 180V\n",
+ "I_L1 = I1*(Va_a/V) #Full load current(A)\n",
+ "I2 = 20.0 #Current(A). From Appendix A-3 table for 240V\n",
+ "I_L2 = I2*(Va_b/V) #Full load current(A)\n",
+ "\n",
+ "#Result\n",
+ "print('Case(a): Full-load current for armature voltage of 180 V , I_L1 = %.f A' %I_L1)\n",
+ "print('Case(b): Full-load current for armature voltage of 240 V , I_L2 = %.f A' %I_L2)"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Case(a): Full-load current for armature voltage of 180 V , I_L1 = 22 A\n",
+ "Case(b): Full-load current for armature voltage of 240 V , I_L2 = 22 A\n"
+ ]
+ }
+ ],
+ "prompt_number": 1
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 2, Page number 594"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#Variable declaration\n",
+ "hp = 10.0 #Power rating of motor(hp)\n",
+ "V = 600.0 #Voltage rating of motor(V)\n",
+ "Va = 550.0 #Armature voltage(V)\n",
+ "\n",
+ "#Calculation\n",
+ "I = 16.0 #Current(A). From Appendix A-3 table for 550 V\n",
+ "I_L = I*(Va/V) #Full load current(A)\n",
+ "\n",
+ "#Result\n",
+ "print('Line current at rated load , I_L = %.1f A' %I_L)"
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Line current at rated load , I_L = 14.7 A\n"
+ ]
+ }
+ ],
+ "prompt_number": 1
+ }
+ ],
+ "metadata": {}
+ }
+ ]
+} \ No newline at end of file