Ferroresonance occurrence represents a very dangerous phenomenon to electric power systems. Concerning the recent trend of applications grid-connected wind farms, this can lead undesired overvoltages stressing farm components. In paper, ferroresonance are studied and mitigated for farm. Single-pole switching breaker is considered, where it most famous reason behind transient events in During pe...

In order to study the strong electromagnetic pulse effect of critically vulnerable equipment in power systems and evaluate survivability under high-altitude pulses, it is necessary characteristics transient response metal oxide arresters by experiment. this paper, an experimental platform for conduction current injection a typical 10 kV arrester was set up, key parameters such as peak value ove...

This paper proposes the solutions to prevent over-voltage for the 220 kV distribution substations with several different voltage levels. The motivation comes from the failures of surge arrester number 2 of phase B at the transformer number 2 (CS2BAT2) of the Vietnamese 220 kV Thainguyen substation due to the over-voltage. The main objective is to enhance the operating stability of a scattered c...