The surge impedance of a typical overhead transmission line is in the range of:
A1 to 10 ohms
B4000 to 5000 ohms
C40 to 50 ohms
D400 to 500 ohms
Explanation
Surge Impedance (or characteristic impedance Zc = √(L/C)) for uncompensated overhead transmission lines ranges from 400 to 500 ohms, whereas underground cables typically range from 40 to 50 ohms due to higher capacitance.
No Comments