This paper describes the underlying theory and model of capacitive voltage substations and its
assosiate problems. This system is intended to supply electricity to rural communities directly from high voltage
transmission lines. This technique leads to important costreductions when compared with conventional alternatives.However, in several transient cases, some problems such as Ferro resonance And over voltages can occur in these substations. These transient cases are simulated in this paperand a new technique is proposed for damping of dangerous over voltages due toferro resonance. In this technique, by using devices, a damping resistance is switched to secondary side of the system transformer, when necessary. Several computer simulation tests are presented in the paper to highlight the usefulness of this technique. These simulations results present that over voltages are adequately limited.
assosiate problems. This system is intended to supply electricity to rural communities directly from high voltage
transmission lines. This technique leads to important costreductions when compared with conventional alternatives.However, in several transient cases, some problems such as Ferro resonance And over voltages can occur in these substations. These transient cases are simulated in this paperand a new technique is proposed for damping of dangerous over voltages due toferro resonance. In this technique, by using devices, a damping resistance is switched to secondary side of the system transformer, when necessary. Several computer simulation tests are presented in the paper to highlight the usefulness of this technique. These simulations results present that over voltages are adequately limited.
