Chapter6 - Location of the Faults

Exa 6.1 page 155

In [7]:
from __future__ import division
r=250 
s=1000 
l=1000 
x=r*l/s 
print "Position of the fault=%.1fm"%(x)

Position of the fault=250.0m

Exa 6.2 page 156

In [8]:
r=600 
s=1000 
El=500*30/50 
l=450+El 
x=r*l/s 
print "Position of the fault=%.1f m"%(x)

Position of the fault=450.0 m

Exa 6.3 page 156

In [9]:
R_armature=0.256/16 
print "Armature Resistance=%.2f ohm"%(R_armature)
R_armature_true=0.256/(16-(0.256/10)) 
Error=R_armature-R_armature_true 
Error_percentage=Error*100/R_armature_true 
print "\nPercentage Error=%.2f"%(Error_percentage)

Armature Resistance=0.02 ohm

Percentage Error=-0.16

Exa 6.4 page 157

In [10]:
R1=45 
R2=100-R1 
l=500 
x=2*l*R1/(R1+R2) 
print "Position of the fault from the test end=%.1f m"%(x)

Position of the fault from the test end=450.0 m

Exa 6.5 page 157

In [11]:
r3=300 
r2=1500 
r1=15 
R=(r3/r2)*r1 
l=4000 
r3=180 
d=(2*l/R)*(R*r2-r3*r1)/(r1+r2) 
print "Distance of the fault=%.2fm"%(d)

Distance of the fault=3168.32m