Single-wire earth return (SWER) - QuickField simulation example
A single wire distribution network consists of a single insulated wire. Earth is used as a return conductor.
How is reverse current density distributed in the ground for a single-wire earth return line?
Answer Typical applications Geometry
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Task
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Engineering question
A plane-parallel AC magnetics model determines the reverse current density distribution in soil and rock.
SWER distribution lines, rural transmission systems, earth-return power lines
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Simulation problem
Problem Type
Plane-parallel problem of AC magnetics.
Power line current I = 10 A
Power frequency f = 50 Hz
Line length L = 10 km.
Electric conductivity of soil = 0.001 S/m
Electric conductivity of rock = 0.0001 S/m.
Current flows through a single-wire power line. Determine the distribution of the reverse current density in the ground.
The distribution of current density in the soil layer and in the rock and the total voltage drops.
Wikipedia: Single-wire earth return
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