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{
"metadata": {
"name": "",
"signature": "sha256:ee219f57423897626f36b1403a7ddfed52f292b3adbd144afa54ccec5692e036"
},
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"nbformat_minor": 0,
"worksheets": [
{
"cells": [
{
"cell_type": "heading",
"level": 1,
"metadata": {},
"source": [
"Chapter 3: Fractional K.W. \n",
"(FKW) Motors"
]
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 3.1, Page 242"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"from math import pi, tan\n",
"\n",
"\n",
"#Given data :\n",
"Za=complex(3,3);#in ohm\n",
"Zm=complex(6,3);#in ohm\n",
"\n",
"#Calculations\n",
"#Phase difference 90 degree : so angle between Im and V is 90-45 degree\n",
"theta=90-45;#in degree\n",
"f=50;#in Hz\n",
"#Formula : tand(theta)=(Xc-Xl)/R\n",
"Xl=3;#in ohm and Xc=1/(2*%pi*C)\n",
"R=6;#in ohm\n",
"C=1./(2*pi*f*(tan(theta*pi/180)*R+Xl));\n",
"\n",
"#Result\n",
"print \"Capacitance(in micro Farad) :\",(C*10**6);"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Capacitance(in micro Farad) : 353.677651315\n"
]
}
],
"prompt_number": 3
}
],
"metadata": {}
}
]
}
|
