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author | Thomas Stephen Lee | 2015-08-28 16:53:23 +0530 |
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committer | Thomas Stephen Lee | 2015-08-28 16:53:23 +0530 |
commit | db0855dbeb41ecb8a51dde8587d43e5d7e83620f (patch) | |
tree | b95975d958cba9af36cb1680e3f77205354f6512 /sample_notebooks/DivyangGandhi/ch2.ipynb | |
parent | 5a86a20b9de487553d4ef88719fb0fd76a5dd6a7 (diff) | |
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diff --git a/sample_notebooks/DivyangGandhi/ch2.ipynb b/sample_notebooks/DivyangGandhi/ch2.ipynb new file mode 100644 index 00000000..a473f6ff --- /dev/null +++ b/sample_notebooks/DivyangGandhi/ch2.ipynb @@ -0,0 +1,80 @@ +{ + "metadata": { + "name": "", + "signature": "sha256:47d75f27ec6c94d8690b19c8285770e7f28c9cd54fabd419e1b2d7d6e6d4afe5" + }, + "nbformat": 3, + "nbformat_minor": 0, + "worksheets": [ + { + "cells": [ + { + "cell_type": "heading", + "level": 1, + "metadata": {}, + "source": [ + "Chapter 2 : Transmission Lion Structures and Equipment" + ] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 2.1 Page No : 77" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math \n", + "\n", + "# GIVEN DATA\n", + "t_s = 0.49 ; # Human body is in contact with 60 Hz power for 0.49 sec\n", + "r = 100 ; # Resistivity of soil based on IEEE std 80-2000 \n", + "\n", + "# CALCULATIONS\n", + "# For case (a)\n", + "v_touch50 = 0.116*(1000+1.5*r)/math.sqrt(t_s) ; # Maximum allowable touch voltage for 50 kg body weight in volts\n", + "\n", + "# For case (b)\n", + "v_step50 = 0.116*(1000+6*r)/math.sqrt(t_s) ; # Maximum allowable step voltage for 50 kg body weight in volts\n", + "# Above Equations of case (a) & (b) applicable if no protective surface layer is used\n", + "\n", + "# For metal to metal contact below equation holds good . Hence resistivity is zero\n", + "r_1 = 0 ; # Resistivity is zero\n", + "\n", + "# For case (c)\n", + "v_mm_touch50 = 0.116*(1000)/math.sqrt(t_s) ; # Maximum allowable touch voltage for 50 kg body weight in volts for metal to metal contact\n", + "\n", + "# For case (d)\n", + "v_mm_touch70 = 0.157*(1000)/math.sqrt(t_s) ; # Maximum allowable touch voltage for 70 kg body weight in volts for metal to metal contact\n", + "\n", + "# DISPLAY RESULTS\n", + "print \" a) Tolerable Touch potential , V_touch50 = %.f V , for 50 kg body weight \"%(v_touch50) ;\n", + "print \" b) Tolerable Step potential , V_step50 = %.f V , for 50 kg body weight \"%(v_step50) ;\n", + "print \" c) Tolerable Touch Voltage for metal-to-metal contact , V_mm_touch50 = %.1f V , for 50 kg body weight \"%(v_mm_touch50) ;\n", + "print \" d) Tolerable Touch Voltage for metal-to-metal contact , V_mm_touch70 = %.1f V , for 70 kg body weight \"%(v_mm_touch70) ;\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + " a) Tolerable Touch potential , V_touch50 = 191 V , for 50 kg body weight \n", + " b) Tolerable Step potential , V_step50 = 265 V , for 50 kg body weight \n", + " c) Tolerable Touch Voltage for metal-to-metal contact , V_mm_touch50 = 165.7 V , for 50 kg body weight \n", + " d) Tolerable Touch Voltage for metal-to-metal contact , V_mm_touch70 = 224.3 V , for 70 kg body weight \n" + ] + } + ], + "prompt_number": 1 + } + ], + "metadata": {} + } + ] +}
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