From 79c59acc7af08ede23167b8455de4b716f77601f Mon Sep 17 00:00:00 2001 From: hardythe1 Date: Thu, 11 Jun 2015 17:31:11 +0530 Subject: add books --- .../Chapter02.ipynb | 281 +++++++++++++++++++++ 1 file changed, 281 insertions(+) create mode 100755 Electrical_Power_System_by_C.L._Wadhwa/Chapter02.ipynb (limited to 'Electrical_Power_System_by_C.L._Wadhwa/Chapter02.ipynb') diff --git a/Electrical_Power_System_by_C.L._Wadhwa/Chapter02.ipynb b/Electrical_Power_System_by_C.L._Wadhwa/Chapter02.ipynb new file mode 100755 index 00000000..269565a5 --- /dev/null +++ b/Electrical_Power_System_by_C.L._Wadhwa/Chapter02.ipynb @@ -0,0 +1,281 @@ +{ + "metadata": { + "name": "" + }, + "nbformat": 3, + "nbformat_minor": 0, + "worksheets": [ + { + "cells": [ + { + "cell_type": "heading", + "level": 1, + "metadata": {}, + "source": [ + "Chapter 02 : Line Constant Calculations" + ] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 2.2, Page No 29" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math\n", + "#initialisation of variables\n", + "GMD=0.7788*0.8/(2*100)\n", + "Mgmd=((1.6*3.2*1.6)**(1.0/3))\n", + "\n", + "#Calculations\n", + "Z=2*(10**-4)*1000*math.log(2.015/.003115)\n", + "\n", + "#Results\n", + "print(\"The self GMD of the conductor =%.6f metres\" %GMD)\n", + "print(\"The mutual GMD of the conductor =%.3f metres \" %Mgmd)\n", + "print(\"Inductance =%.3f mH/km\\n\" %Z)\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The self GMD of the conductor =0.003115 metres\n", + "The mutual GMD of the conductor =2.016 metres \n", + "Inductance =1.294 mH/km\n", + "\n" + ] + } + ], + "prompt_number": 1 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 2.3, Page No 29" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math\n", + "#initialisation of variables\n", + "r=1\n", + "D11=r**1\n", + "D12=2*r\n", + "D14=4*r\n", + "\n", + "#Calculations\n", + "D13=math.sqrt(16-4)*r\n", + "Ds1=((1*2*2*math.sqrt(3)*4*2*math.sqrt(3)*2*2)**(1.0/7))*r\n", + "Ds7=((2*1*2*2**2*2*2)**(1.0/7))*r #we get this after Taking r outside the 1/7th root\n", + "Ds=((((1*2*2*math.sqrt(3)*4*2*math.sqrt(3)*2*2)**(1.0/7))**6)*((2*1*2*2**2*2*2)**(1.0/7)))**(1.0/7)*r\n", + "Dseq=((.7788)**(1.0/7))*Ds\n", + "\n", + "#Results\n", + "print(\"Dseq.= %.2fr\" %Dseq)" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Dseq.= 2.18r\n" + ] + } + ], + "prompt_number": 2 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 2.4, Page No 30" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math\n", + "#initialisation of variables\n", + "GMDa=0.001947\t\t\t\t# GMD of conductor in group A\n", + "\n", + "#Calculations\n", + "DSA=((.001947*6*12*.001947*6*6*0.001947*6*12)**(1.0/9))\n", + "DSB=math.sqrt(5*(10**-3)*.7788*6)\n", + "Dae=math.sqrt((9**2)+6**2)\n", + "Dcd=math.sqrt((12**2)+9**2)\n", + "DMA=((9*10.81*10.81*9*15*10.81)**(1.0/6))\n", + "LA=2*(10**-7)*(10**6)*math.log(DMA/DSA)\n", + "LB=2*(10**-7)*(10**6)*math.log(DMA/DSB)\n", + "Tot=LA+LB\n", + "\n", + "#Results\n", + "print(\"inductance of line A,LA=%.3f mH/km\" %LA)\t\t#Answers don't match due to difference in rounding off of digits\n", + "print(\"inductance of line B,LB=%.1f mH/km\" %LB)\t\t#Answers don't match due to difference in rounding off of digits\n", + "print(\"total inductance of line =%.2f mH/km\" %Tot)\t#Answers don't match due to difference in rounding off of digits\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "inductance of line A,LA=0.621 mH/km\n", + "inductance of line B,LB=0.9 mH/km\n", + "total inductance of line =1.47 mH/km\n" + ] + } + ], + "prompt_number": 3 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 2.5 Page No 32" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math\n", + "#initialisation of variables\n", + "GMDc=1.266*0.7788*(10**-2)\t\t# self GMD of each conductor\n", + "Dbc=math.sqrt((4**2)+(.75**2))\n", + "Dab=Dbc\n", + "\n", + "#Calculations\n", + "Dab=math.sqrt((4**2)+(8.25**2))\n", + "Daa=math.sqrt((8**2)+(7.5**2))\n", + "Dm1=(Dbc*8*7.5*9.1685)**(1.0/4)\n", + "Dm2=(Dbc*Dbc*9.1685*9.1685)**(1.0/4)\n", + "Dm3=Dm1\n", + "Dm=((Dm1*Dm2*Dm3)**(1.0/3))\n", + "Ds1=math.sqrt(GMDc*Daa)\t\t# self GMD of each phase\n", + "Ds3=Ds1\n", + "Ds2=math.sqrt(GMDc*9)\n", + "Ds=((Ds1*Ds2*Ds3)**(1.0/3))\n", + "Z=2*(10**-4)*(1000)*math.log(Dm/Ds)\n", + "\n", + "#Results\n", + "print(\"inductance=%.3f mH/km/phase\\n\" %Z)\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "inductance=0.607 mH/km/phase\n", + "\n" + ] + } + ], + "prompt_number": 4 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 2.6, Page No 33" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math\n", + "#initialisation of variables\n", + "GMDs=.0069\t\t#self GMD of the conductor\n", + "Dab=math.sqrt((3**2)+.5**2)\n", + "Dbc=Dab\n", + "Dac=6.0\n", + "\n", + "#Calculations\n", + "Dab=math.sqrt((3**2)+6**2)\n", + "Daa=math.sqrt((6**2)+5.5**2)\n", + "Dm1=((3.04*6*5.5*6.708)**.25)\n", + "Dm2=((3.04*3.04*6.708*6.708)**.25)\n", + "Dm=4.89\n", + "Ds1=math.sqrt(GMDs*Daa)\n", + "Ds2=0.2217\n", + "Ds=.228\n", + "Z=2*(10**-7)*(10**6)*math.log(Dm/Ds)\n", + "\n", + "#Results\n", + "print(\"inductance =%.3f mH/km\" %Z)" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "inductance =0.613 mH/km\n" + ] + } + ], + "prompt_number": 5 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 2.7, Page No 34" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math\n", + "#initialisation of variables\n", + "Ds=math.sqrt(0.025*.4*.7788)\n", + "\n", + "#Calculations\n", + "Dm=((6.5*13.0*6.5)**(1.0/3))\n", + "Z=2*(10**-4)*1000*math.log(Dm/Ds)\n", + "\n", + "#Results\n", + "print(\"inductance =%.3f mH/km/phase\" %Z)" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "inductance =0.906 mH/km/phase\n" + ] + } + ], + "prompt_number": 6 + } + ], + "metadata": {} + } + ] +} \ No newline at end of file -- cgit