Overvoltage happens in a condition where the voltage is increased and exceed its design
limit. This situation may lead to harmful damage to machines or related equipment that …

Large-scale incorporation of new energy generation units based on renewable sources,
such as wind and photovoltaic power, drastically alters the structure of the power system …

Transient overvoltages generated by lightning strikes or switching operations represent a
significant risk to bushings and windings of power transformers. They cause stress on the …

Power grid modernization is often associated with new projects that imply the transmission
network expansion, where transient overvoltages related to energization maneuvers must …

Power transformers are designed to withstand switching and lightning overvoltages which
can occur in the power system. The knowledge about waveshapes of these events grows …

When the substations are separated from the overhead line by an underground cable, surge
arresters are usually installed at the junction between the overhead line and the cable …

This paper includes a computer simulation of switching transient overvoltages during the
disconnecting of shunt reactors (SR). Based on the results of the transient simulations, two …

This paper presents a method for the sizing of a gapped-core nonlinear shunt reactor used
for mitigation of overvoltages in a medium voltage distribution network with a high level of …

This paper investigates the impact of grading capacitors on transient recovery voltage (TRV)
during shunt reactor switching in high voltage systems, considering different levels of current …

Substations usually employ shunt reactors to reduce the reactive power of systems. Due to
current chopping when the shunt reactor is shut off, a high frequency and amplitude …