Lecture
If we set equal to zero the resistance of the wires R0 and the leakage conductance between the wires g0, then we get a line without losses. (perfect line)
R0 = 0; g0 = 0; α = 0;
Phase speed for a two-wire line
Capacity and inductance of a unit of length of a line:
where r0 is the radius of the wire, d is the distance between the axes of the wires
For overhead lines, ε = 1 and μ = 1; v = c
For cable lines ε> 1; v <c
The currents of the forward and reverse waves coincide in phase with the voltages.
Lossless Line Properties
Long quarter wavelength line
Long half wavelength line:
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Electrical Engineering, Circuit design
Terms: Electrical Engineering, Circuit design