Three phase overhead transmission line capacitance - QuickField simulation example
Three phase overhead transmission line capacitance
How to find capacitance matrix of three phase overhead transmission line?
Answer Typical applications Geometry
Given
Solution
Results
Engineering question
Set up a plane-parallel QuickField Electrostatics problem for a three-phase overhead transmission line and evaluate capacitance matrix from computed field results.
overhead transmission lines, three-phase conductors, phase-to-earth capacitance systems
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Simulation problem
Problem Type
Plane-parallel problem of electrostatics.
Model length Lz = 1 km. Conductor diameter 1 cm.
Phase voltage 6.3 kV.
Ground electric potential zero volt.
Transmission line of 3 conductors features self- and mutual- partial capacitances. It is convenient to use capacitance matrix calculator add-in to find all the partial capacitances.
Electric field distribution around the transmission line.
Capacitance, nF/km
Phase A
Phase B
Phase C
Phase A
4.27
1.69
1.64
Phase B
1.69
4.10
1.70
Phase C
1.64
1.70
4.28
Video
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