Transmission and Distribution #
Ferranti Effect
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Definition |
Ferranti effect is defined as the rise in voltage at the receiving end of the open circuited or lightly load.
The capacitance is negligible in short line. Therefore this phenomenon occurs in medium and long transmission line.
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The reason of this phenomenon |
The inductance and capacitance of the line.
=> Inductance causes a voltage drop on it
=> Capacitance causes charging current flowing through it
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Rise in voltage depend on |
=> Formula : Vs-Vr = [ w^2 * L^2 * Vr * 10^-10 / 18 ] Volts
=> Length of the line "L".
=> Magnitude of the received voltage "Vr".
=> Assume Constant Frequency = 50 or 60 HZ.
=> where w=2*Pi*f
