From 6279fa19ac6e2a4087df2e6fe985430ecc2c2d5d Mon Sep 17 00:00:00 2001 From: kinitrupti Date: Fri, 12 May 2017 18:53:46 +0530 Subject: Removed duplicates --- .../Chapter_33_Protection_of.ipynb | 197 --------------------- 1 file changed, 197 deletions(-) delete mode 100755 Switchgear_Protection_And_Power_Systems_by_S._S._Rao/Chapter_33_Protection_of.ipynb (limited to 'Switchgear_Protection_And_Power_Systems_by_S._S._Rao') diff --git a/Switchgear_Protection_And_Power_Systems_by_S._S._Rao/Chapter_33_Protection_of.ipynb b/Switchgear_Protection_And_Power_Systems_by_S._S._Rao/Chapter_33_Protection_of.ipynb deleted file mode 100755 index c80817bd..00000000 --- a/Switchgear_Protection_And_Power_Systems_by_S._S._Rao/Chapter_33_Protection_of.ipynb +++ /dev/null @@ -1,197 +0,0 @@ -{ - "cells": [ - { - "cell_type": "markdown", - "metadata": {}, - "source": [ - "# Chapter 33 Protection of Genrators" - ] - }, - { - "cell_type": "markdown", - "metadata": {}, - "source": [ - "## Example 33_1 pgno:624" - ] - }, - { - "cell_type": "code", - "execution_count": 5, - "metadata": { - "collapsed": false - }, - "outputs": [ - { - "name": "stdout", - "output_type": "stream", - "text": [ - "the resistance to be added=ohms 1.94\n" - ] - } - ], - "source": [ - "from math import sqrt\n", - "v=11e3/sqrt(3);\n", - "v=round(v);\n", - "r=5e6;\n", - "per=20;\n", - "i=r/(3*v);\n", - "i=round(i);\n", - "i0=i*25/100;\n", - "R=per*v/(i0*1000);\n", - "R=round(R*100)/100;\n", - "print\"the resistance to be added=ohms\",R\n" - ] - }, - { - "cell_type": "markdown", - "metadata": {}, - "source": [ - "## Example 33_2 pgno:625" - ] - }, - { - "cell_type": "code", - "execution_count": 6, - "metadata": { - "collapsed": false - }, - "outputs": [ - { - "name": "stdout", - "output_type": "stream", - "text": [ - "the percentage of unprotected winding=percent 65.3589838486\n", - "Resistance for 90percent winding protection=ohms 2.88675134595\n" - ] - } - ], - "source": [ - "from math import sqrt\n", - "v=10e3/sqrt(3);\n", - "R=10.;\n", - "i=1.;\n", - "ct=1000./5.;\n", - "ip=i*ct;\n", - "per=R*ip*100./v;\n", - "p=10.;\n", - "res=p/100.*v/ip;\n", - "print\"the percentage of unprotected winding=percent\",100-(per)\n", - "print\"Resistance for 90percent winding protection=ohms\",res\n" - ] - }, - { - "cell_type": "markdown", - "metadata": {}, - "source": [ - "## Example 33_3 pgno:625" - ] - }, - { - "cell_type": "code", - "execution_count": 7, - "metadata": { - "collapsed": false - }, - "outputs": [ - { - "name": "stdout", - "output_type": "stream", - "text": [ - "percentage of unprotected winding for earth fault=percent 11.6\n" - ] - } - ], - "source": [ - "from math import sqrt\n", - "per=.2;\n", - "r=10e6;\n", - "R=7;\n", - "v=11e3;\n", - "i=r/(sqrt(3)*v);\n", - "i=round(i);\n", - "i0=per*i;\n", - "v=v/sqrt(3);\n", - "p=R*i0/v*100;\n", - "p=round(p*10)/10;\n", - "print\"percentage of unprotected winding for earth fault=percent\",p\n" - ] - }, - { - "cell_type": "markdown", - "metadata": {}, - "source": [ - "## Example 33_5 pgno:626" - ] - }, - { - "cell_type": "code", - "execution_count": 8, - "metadata": { - "collapsed": false - }, - "outputs": [ - { - "name": "stdout", - "output_type": "stream", - "text": [ - "the neutral earthing resistance=ohms 3.14\n" - ] - } - ], - "source": [ - "from math import sqrt\n", - "i=200.;\n", - "c=.1;\n", - "v=11e3/sqrt(3);\n", - "per=.15;\n", - "x=per*v/(i);\n", - "ru=c*x;\n", - "vi=v*c;\n", - "y=vi/i;\n", - "r=sqrt((y**2)-(ru**2));\n", - "r=round(r*100)/100;\n", - "print\"the neutral earthing resistance=ohms\",r\n" - ] - }, - { - "cell_type": "code", - "execution_count": null, - "metadata": { - "collapsed": true - }, - "outputs": [], - "source": [] - }, - { - "cell_type": "code", - "execution_count": null, - "metadata": { - "collapsed": true - }, - "outputs": [], - "source": [] - } - ], - "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": "2.7.9" - } - }, - "nbformat": 4, - "nbformat_minor": 0 -} -- cgit