From db0855dbeb41ecb8a51dde8587d43e5d7e83620f Mon Sep 17 00:00:00 2001 From: Thomas Stephen Lee Date: Fri, 28 Aug 2015 16:53:23 +0530 Subject: add books --- sample_notebooks/HimanshuRajput/chapter3.ipynb | 798 +++++++++++++++++++++++++ 1 file changed, 798 insertions(+) create mode 100755 sample_notebooks/HimanshuRajput/chapter3.ipynb (limited to 'sample_notebooks/HimanshuRajput') diff --git a/sample_notebooks/HimanshuRajput/chapter3.ipynb b/sample_notebooks/HimanshuRajput/chapter3.ipynb new file mode 100755 index 00000000..16142135 --- /dev/null +++ b/sample_notebooks/HimanshuRajput/chapter3.ipynb @@ -0,0 +1,798 @@ +{ + "metadata": { + "name": "", + "signature": "sha256:f5ac69af9ae1d841a7df309d87210c9fa6bb22448fba66aee7e2b96f7445f61f" + }, + "nbformat": 3, + "nbformat_minor": 0, + "worksheets": [ + { + "cells": [ + { + "cell_type": "heading", + "level": 1, + "metadata": {}, + "source": [ + "Chapter3:THREE PHASE CIRCUITS" + ] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Ex3.1:pg-286" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import cmath\n", + "f=50.0; #Assigning values to parameters\n", + "Vl=400.0;\n", + "Rph=20.0;\n", + "L=0.5;\n", + "Xl=2*math.pi*f*L;\n", + "Zph=20+1j*157;\n", + "[r,t]=cmath.polar(Zph);\n", + "Vph=Vl/sqrt(3); #Star connection\n", + "Iph=Vph/r;\n", + "Il=Iph;\n", + "P=sqrt(3)*Vl*Il*cos(t);\n", + "print\"The line current for Star connection is Il=\",round(Il,2),\"Amperes\"\n", + "print\"The total power absorbed in Star connection is P=\",round(P,3),\"Watts\"\n", + "Vph=Vl; #Delta connection\n", + "Iph=Vph/r;\n", + "Il=sqrt(3)*Iph;\n", + "P=sqrt(3)*Vl*Il*cos(t);\n", + "print\"The line current for Delta connection is Il=\",round(Il,2),\"Amperes\"\n", + "print\"The total power absorbed in Delta connection is P=\",round(P,2),\"Watts\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The line current for Star connection is Il= 1.46 Amperes\n", + "The total power absorbed in Star connection is P= 127.75 Watts\n", + "The line current for Delta connection is Il= 4.38 Amperes\n", + "The total power absorbed in Delta connection is P= 383.25 Watts\n" + ] + } + ], + "prompt_number": 5 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Ex3.2:pg-288" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import cmath\n", + "f=50 #Assigning values to parameters\n", + "rph=8\n", + "l=0.02\n", + "xl=2*math.pi*f*l\n", + "vl=230\n", + "f=50\n", + "vph=vl/sqrt(3)\n", + "zph=8+1j*6.28\n", + "[r,t]=cmath.polar(zph)\n", + "iph=vph/r\n", + "il=iph\n", + "p=sqrt(3)*vl*il*cos(t)\n", + "q=sqrt(3)*vl*il*sin(t)\n", + "s=sqrt(3)*vl*il\n", + "print\"The line current is il=\",round(il,2),\"Amperes\"\n", + "print\"The total Power absorbed is P=\",round(P,2),\"Watts\"\n", + "print\"The reactive volt amperes is q=\",round(q,2),\"VAR\"\n", + "print\"The Volt amperes is s=\",round(s,2),\"Volt Ampere\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The line current is il= 13.06 Amperes\n", + "The total Power absorbed is P= 383.25 Watts\n", + "The reactive volt amperes is q= 3211.69 VAR\n", + "The Volt amperes is s= 5201.33 Volt Ampere\n" + ] + } + ], + "prompt_number": 6 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Ex3.3:pg-289" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import cmath\n", + "Vl=230; #Assigning values to parameters\n", + "f=50;\n", + "Rph=15;\n", + "L=0.03;\n", + "Xl=2*math.pi*f*L;\n", + "Zph=15+1j*9.42;\n", + "[r,t]=cmath.polar(Zph)\n", + "Vph=Vl;\n", + "Iph=Vph/r;\n", + "Il=sqrt(3)*Iph;\n", + "P=sqrt(3)*Vl*Il*cos(t);\n", + "print\"Phase current is Iph=\",round(Iph,2),\"Amperes\"\n", + "print\"Line current is Il=\",round(Il,1),\"Amperes\"\n", + "print\"Power absorbed is=\",round(P/1000,2),\"KW\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Phase current is Iph= 12.99 Amperes\n", + "Line current is Il= 22.5 Amperes\n", + "Power absorbed is= 7.59 KW\n" + ] + } + ], + "prompt_number": 22 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Ex3.4:pg-290" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import cmath\n", + "f=50#assigning values to the parameters\n", + "xc=200\n", + "vph=400\n", + "vl=vph\n", + "zph=14.151-1j*200\n", + "[r,t]=cmath.polar(zph)\n", + "iph=vph/r\n", + "il=sqrt(3)*iph\n", + "p=sqrt(3)*vl*il*cos(t)\n", + "pwr=vph*iph*cos(t)\n", + "c=1.0/(2*math.pi*f*xc)\n", + "print\"power consumed in each branch of delta is pwr=\",round(pwr,2),\"Watts\"\n", + "print\"capacitive reactance is c=\"\"{:.2e}\".format(c),\"Farads\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "power consumed in each branch of delta is pwr= 56.32 Watts\n", + "capacitive reactance is c=1.59e-05 Farads\n" + ] + } + ], + "prompt_number": 29 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Ex3.5:pg-290" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import cmath\n", + "l=50 #Assigning values to parameters\n", + "w=800\n", + "c=50\n", + "xl=w*l\n", + "xc=1/(w*c)\n", + "z1=0+1j*40\n", + "z2=50\n", + "z3=0-1j*25\n", + "zph=z1+z2*z3/(z2+z3)\n", + "[r,t]=cmath.polar(zph)\n", + "vl=550\n", + "vph=vl\n", + "iph=vph/r\n", + "il=sqrt(3)*iph\n", + "p=sqrt(3)*vl*il*cos(t)\n", + "pf=cos(t)\n", + "q=sqrt(3)*vl*il*sin(t)\n", + "s=sqrt(3)*vl*il\n", + "print\"The phase current is\",round(iph,2),\"Amperes\"\n", + "print\"The line current is\",round(il,2),\"Amperes\"\n", + "print\"The power drawn is\",round(p/1000,2),\"kw\"\n", + "print\"The power factor is\",round(pf,2)\n", + "print\"The reactive power is\",round(q/1000,2),\"kw\"\n", + "print\"The kva rating of load is\",round(s/1000,2),\"KVA\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The phase current is 24.6 Amperes\n", + "The line current is 42.6 Amperes\n", + "The power drawn is 18.15 kw\n", + "The power factor is 0.45\n", + "The reactive power is 36.3 kw\n", + "The kva rating of load is 40.58 KVA\n" + ] + } + ], + "prompt_number": 39 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Ex3.7:pg-294" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import cmath\n", + "p=10000 #Assigning values to parameters\n", + "t=math.acos(0.6)\n", + "vl=440\n", + "vph=vl\n", + "il=p/(sqrt(3)*vl*cos(t))\n", + "iph=il/sqrt(3)\n", + "zph=vph/iph\n", + "zph1=20.9-1j*27.87\n", + "res=zph1.real\n", + "xc=zph1.imag\n", + "q=sqrt(3)*vl*il*sin(t)\n", + "print\"The resistance value of circuit element is\",round(res,2),\"ohms\"\n", + "print\"The capacitive value of circuit element is\",round(-xc,2),\"ohms\"\n", + "print\"The reactive volt-ampere\",round(-q/1000,2),\"KVAR\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The resistance value of circuit element is 20.9 ohms\n", + "The capacitive value of circuit element is 27.87 ohms\n", + "The reactive volt-ampere -13.33 KVAR\n" + ] + } + ], + "prompt_number": 50 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Ex3.8:pg-295" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import cmath\n", + "f=50 #Assigning values to parameters\n", + "vl=440\n", + "p=1500\n", + "t=math.acos(0.2)\n", + "vph=vl/sqrt(3)\n", + "il=p/(sqrt(3)*vl*p*cos(t))\n", + "iph=il\n", + "zph=vph/iph\n", + "zph1=5.17+1j*25.3\n", + "res=zph1.real\n", + "xl=zph1.imag\n", + "l=xl/(2*math.pi*f)\n", + "print\"The resistive circuit constant is\",round(res,2),\"ohms\"\n", + "print\"The inductive circuit constant is\",round(l,2),\"H\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The resistive circuit constant is 5.17 ohms\n", + "The inductive circuit constant is 0.08 H\n" + ] + } + ], + "prompt_number": 52 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Ex3.9:pg-296" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import cmath\n", + "p=100000 #Assigning values to parameters\n", + "il=80\n", + "vl=1100\n", + "f=50\n", + "vph=vl/sqrt(3)\n", + "iph=il\n", + "zph=vph/iph\n", + "t=math.acos(p/(sqrt(3)*vl*il))\n", + "zph1=5.21-1j*6\n", + "r=zph1.real\n", + "xc=zph1.imag\n", + "c=1/(2*math.pi*f*xc)\n", + "print\"The resistive circuit constant is\",round(r,2),\"ohms\"\n", + "print\"The capacitive circuit constant is\",round(-xc,2),\"ohms\"\n", + "print\"The capacitance is\",\"{:.2e}\".format(-c),\"farads\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The resistive circuit constant is 5.21 ohms\n", + "The capacitive circuit constant is 6.0 ohms\n", + "The capacitance is 5.31e-04 farads\n" + ] + } + ], + "prompt_number": 58 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Ex3.10:pg-296" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "\n", + "Vl=400; #Assigning values to parameters\n", + "Il=34.65;\n", + "P=14.4*10**3;\n", + "Vph=Vl;\n", + "Iph=Il/sqrt(3);\n", + "Zph=Vph/Iph;\n", + "t=math.acos(P/(sqrt(3)*Vl*Il))\n", + "Z=complex(Zph,t);\n", + "a=cmath.rect(Zph,t)\n", + "print\"Impedance\",a,\"ohms\"\n", + "print \"Resistance\",round(a.real),\"ohms\"\n", + "print \"Reactance\",round(a.imag),\"ohms\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Impedance (11.9937782275+15.9981840036j) ohms\n", + "Resistance 12.0 ohms\n", + "Reactance 16.0 ohms\n" + ] + } + ], + "prompt_number": 79 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Ex3.11:pg-297" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import cmath\n", + "vl=415 #assigning values to the parameters\n", + "r=15\n", + "l=0.1\n", + "c=177*10**-6\n", + "f=50\n", + "vph=vl/sqrt(3)\n", + "xl=2*math.pi*f*l\n", + "xc=1.0/(2*math.pi*f*c)\n", + "a=xl-xc\n", + "zph=r+1j*a\n", + "[r1,t]=cmath.polar(zph)\n", + "iph=vph/r1\n", + "il=iph\n", + "p=sqrt(3)*vl*il*cos(t)\n", + "q=sqrt(3)*vl*il*sin(t)\n", + "s=sqrt(3)*vl*il\n", + "print\"The phase current is\",round(iph,1),\"Amperes\"\n", + "print\"The line current is\",round(il,2),\"Amperes\"\n", + "print\"The power drawn is\",round(p/1000,2),\"KW\"\n", + "print\"The reactive power is\",round(q/1000,2),\"KVAR\"\n", + "print\"The total kVA is\",round(s/1000,2),\"KVA\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The phase current is 11.9 Amperes\n", + "The line current is 11.9 Amperes\n", + "The power drawn is 6.37 KW\n", + "The reactive power is 5.71 KVAR\n", + "The total kVA is 8.55 KVA\n" + ] + } + ], + "prompt_number": 102 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Ex3.12:pg-299" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "\n", + "vl=400 #assigning values to the parameters\n", + "t=0\n", + "zph=50\n", + "vph=vl/sqrt(3)\n", + "iph=vph/zph\n", + "il=iph\n", + "p=sqrt(3)*vl*il*cos(t)\n", + "print\"Power taken is\",round(p,2),\"Watts\"\n", + "iph=4\n", + "il=iph\n", + "p=vl*il*cos(t)\n", + "print\"Power taken after disconecting one of the resistor is\",round(p,2),\"Watts\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Power taken is 3200.0 Watts\n", + "Power taken after disconecting one of the resistor is 1600.0 Watts\n" + ] + } + ], + "prompt_number": 103 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Ex3.13:pg-300" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "\n", + "vl=400 #Assigning values to parameters\n", + "vph=vl\n", + "r=40\n", + "t=0\n", + "iph=vph/r\n", + "il=sqrt(3)*iph\n", + "p=sqrt(3)*vl*il*cos(t)\n", + "print\"Power taken is\",round(p,2),\"Watts\"\n", + "i=10\n", + "p=2*i*i*r\n", + "print\"Power taken after diconnecting one resistor is\",round(p,2),\"Watts\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Power taken is 12000.0 Watts\n", + "Power taken after diconnecting one resistor is 8000.0 Watts\n" + ] + } + ], + "prompt_number": 104 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Ex3.16:pg-310" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math\n", + "w1=500 #Assigning values to parameters\n", + "w2=2500\n", + "p=w1+w2\n", + "t=math.atan(sqrt(3)*(w2-w1)/(w1+w2))\n", + "pf=cos(t)\n", + "print\"Total Power supplied is\",round(p,2),\"Watts\"\n", + "print\"Power factor is\",round(pf,3)\n", + "w2=2500\n", + "w1=-500\n", + "p=w1+w2\n", + "t=math.atan(sqrt(3)*(w2-w1)/(w1+w2))\n", + "pf=cos(t)\n", + "print\"Total Power supplied after reversing the connections to the current coil is\",round(p,2),\"Watts\"\n", + "print\"Power factor after reversing the connections to the current coil is\",round(pf,3)" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Total Power supplied is 3000.0 Watts\n", + "Power factor is 0.655\n", + "Total Power supplied after reversing the connections to the current coil is 2000.0 Watts\n", + "Power factor after reversing the connections to the current coil is 0.359\n" + ] + } + ], + "prompt_number": 117 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Ex3.17:pg-311" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math\n", + "w1=3000 #Assigning values to parameters\n", + "w2=5000\n", + "t=math.atan(sqrt(3)*(w2-w1)/(w1+w2))\n", + "pf=cos(t)\n", + "p=w1+w2\n", + "il=p/(sqrt(3)*vl*cos(t))\n", + "print\"Watts\",p,\"Total Power supplied is\",round(p,2),\"Watts\"\n", + "print\"Power factor is\",round(pf,2)\n", + "print\"The line current is\",round(il,2),\"Amperes\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Watts 8000 Total Power supplied is 8000.0 Watts\n", + "Power factor is 0.92\n", + "The line current is 12.58 Amperes\n" + ] + } + ], + "prompt_number": 112 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "\n", + "Ex3.18:pg-311" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math\n", + "w1=-1000 #Assigning values to parameters\n", + "w2=3000\n", + "vl=400\n", + "t=math.atan(sqrt(3)*(w2-w1)/(w1+w2))\n", + "pf=cos(t)\n", + "p=w1+w2\n", + "il=p/(sqrt(3)*vl*cos(t))\n", + "print\"Total Power supplied is\",round(p,2),\"Watts\"\n", + "print\"Power factor is\",round(pf,3)\n", + "print\"The line current is\",round(il,2),\"Amperes\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Total Power supplied is 2000.0 Watts\n", + "Power factor is 0.277\n", + "The line current is 10.41 Amperes\n" + ] + } + ], + "prompt_number": 119 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "\n", + "Ex3.19:pg-312" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math\n", + "w1=100000 #Assigning values to parameters\n", + "w2=300000\n", + "vl=2000\n", + "n=0.9\n", + "t=math.atan(sqrt(3)*(w2-w1)/(w1+w2))\n", + "pf=cos(t)\n", + "p=w1+w2\n", + "il=p/(sqrt(3)*vl*cos(t))\n", + "print\"Total Power supplied is\",round(p,2),\"Watts\"\n", + "print\"Power factor is\",round(pf,2)\n", + "print\"The line current is\",round(il,2),\"Amperes\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Total Power supplied is 400000.0 Watts\n", + "Power factor is 0.76\n", + "The line current is 152.75 Amperes\n" + ] + } + ], + "prompt_number": 121 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "\n", + "Ex3.20:pg-312" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "\n", + "vl=220 #Assigning values to parameters\n", + "il=38\n", + "n=0.88\n", + "p=11200\n", + "ip=p/n\n", + "t=math.acos(ip/(sqrt(3)*vl*il))\n", + "a=math.degrees(t)\n", + "w2=vl*il*cos(30-a)\n", + "w1=vl*il*cos(30+a)\n", + "print\"The wattmeter reading is w2=\",round(w2,2),\"Watts\"\n", + "print\"The wattmeter reading is w1=\",round(w1,2),\"Watts\"\n", + "# the answer of w2,w1 are wrong in the book\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The wattmeter reading is w2= 449.52 Watts\n", + "The wattmeter reading is w1= -2972.66 Watts\n" + ] + } + ], + "prompt_number": 138 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "\n", + "Ex3.21:pg-313" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "import math\n", + "w1=1 #Assigning values to parameters\n", + "w2=2*w1\n", + "t=math.atan(sqrt(3)*(w2-w1)/(w1+w2))\n", + "pf=cos(t)\n", + "print\"Power factor is\",round(pf,3)" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Power factor is 0.866\n" + ] + } + ], + "prompt_number": 127 + } + ], + "metadata": {} + } + ] +} \ No newline at end of file -- cgit