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{
"cells": [
{
"cell_type": "markdown",
"metadata": {},
"source": [
"# CHAPTER_8-Load Characteristics Of DC Motors"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Example 8.3 Page Dc-111"
]
},
{
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"execution_count": 1,
"metadata": {
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},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"speed of motion at half the torque= 1444.17 rpm\n"
]
}
],
"source": [
"import math\n",
"\n",
"#variable declaration\n",
"U=230 #voltage(V)\n",
"Ia1=155 #current(A)\n",
"Rm_Rse=0.1#armature resistance(ohm)\n",
"N1=1000 #speed(rpm)\n",
"\n",
"#calculation\n",
"Ia2=round(Ia1/math.sqrt(2),1) #current(A)\n",
"Eb1=U-(Ia1*Rm_Rse) #voltage(V)\n",
"Eb2=U-(Ia2*Rm_Rse) #voltage(V)\n",
"N2=(Eb2/Eb1)*(Ia1/Ia2)*N1\n",
"print 'speed of motion at half the torque=',round(N2,2),'rpm'"
]
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 2",
"language": "python",
"name": "python2"
},
"language_info": {
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"name": "ipython",
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},
"file_extension": ".py",
"mimetype": "text/x-python",
"name": "python",
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"pygments_lexer": "ipython2",
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},
"nbformat": 4,
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}
|
