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Capacitance
of
Transmission Lines
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Web link
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• Prepared By:
– ROHIT RAHUL K.
– SHAH SHITAL K
– SHAIKH MAHAMMADPARVEZ I.
– SIDDIQUI ARSHAD HUSSAIN A.
– SOLANKI LALITBHAI C.
– SOLANKI RAVINDRASINH N.
– TRIVEDI BHARGAV H.
– VISANI RADHIKA C.
– DILIP DAS
– PARGI NIMESH
– PRAJAPATI NIMESH www.sah786.wordpress.com
GOVERNMENT
ENGINEERING COLLAGE
DAHOD
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Contents
• Introduction
• Coulomb's law
• Capacitance of a three phase line
• Effect of earth on transmission line capacitance
• Method of GMD
• Bundled conductors,
• Electrostatic induction
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Introduction Transmission Line
Capacitance.
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• The capacitance of a transmission line is the
result of the potential differences between
the conductors themselves as well as
potential differences between the conductors
and ground.
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Coulomb's law
Coulomb's law: Like charge repel and unlike
charge attracted each other.
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Electric field
Electric field: Region around the electric charge in
which another charge experiences a force of attraction
or repletion
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Potential different Difference
Between Two Points.
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Capacitance of single phase two wire
line.
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Capacitance of three phase line
with Unsymmetrical Spacing.
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Effect of earth on transmission line
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Bundle conductor
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Many types of bundle conductor
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Advantages of bundle conductor
•Current capacity increased
•Reduced corona losses
•Improving skin effect
•Reduced line inductance(improve p.f.)
•Reduced Line heating
•Reduced voltage drop of transmission
line
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Electrostatic induction
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Reference
• Electric circuit (by: R.P. Ajwalia),Pub: Atul Prakashan
• http://www.electrical4u.com/electrical-power-
transmission-system-and-network/
• http://www.skm-eleksys.com/2011/03/transmission-
line-parameters.html
• https://en.wikipedia.org
• follow me:
Web link
http://sah786.wordpress.com
http://www.Facebook.com/Sah92786
https://www.linkedin.com/in/arshad-hussain-8b0a2613b
https://www.slideshare.net/SaHussain1
www.sah786.wordpress.com
Conclusion.
After studying about the topic of transmission line
capacitance, law’s of coulomb, bundle conductor, electrostatic
induction.
we conclude about the phenomena function and concept
of the transmission line capacitance, Capacitance of a three
phase line Effect of earth on transmission line capacitance
Method of GMD Bundled conductors, Electrostatic induction
ect,
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Electrical power system(capacitance of transmission line)