Resonant Voltages Reactor Compensated Extra-High-Voltage Lines

Resonant voltage conditions on an unenergized 765 kV line with shunt reactor compensation, excited by a nearby energized 345 kV line are examined as a function of reactor MVA rating. Results from two methods of analysis are presented. One method uses ABCD matrix analysis in a digital program and the other method uses an electrostatic argument. The electrostatic analysis predicts the number and location of the resonant peaks while the ABCD method yields the entire response curve.