This paper describes the detailed analysis of a reactor application for a power plant to mitigate the voltage rise of a distribution line (DL) caused by the connection of distributed resources (DRs). The maximum capacity of renewable energy generators (REGs) that meets the acceptable voltage rise of a DL and the necessary capacity of the reactor to mitigate that voltage rise according to the di...

The coordination of metal-oxide varistors with transient voltage suppression diodes commonly employed for the protection sensitive electronic equipment in DC automotive systems is experimentally investigated. Double-exponential impulse currents adopted relevant standards, concave and rectangular resembling field records on lightning-related surge events, as well temporary overvoltages, are to s...

In the past few years gas insulated high voltage circuit breakers have improved considerably, in particular with respect to required drive energy for operation, compactness and reliability. A further reduction in size implies increasing operational field stress inside the breaker and, thus, a reduction in built-in safety margins. If the design comes closer to its physical limits, in particular ...

The strategic intent of the African Union is to develop a “Smart Integrated Electric Power Super Grid” driven by modern tools and advances in high-voltage direct current (HVDC) engineering flexible alternating technology systems (FACTS), which central supporting Africa’s sustained economic growth development. southern region, including South Africa, beset critical challenges perennial load-shed...

This paper shows how a competitive ancillary service market for voltage control/reactive power might operate and what it might look like, given the eminently local nature of the service. An automatic voltage control would dynamically manage the reactive power available in a certain geographic region and a local market in reactive power could then be developed similarly to that proposed for the ...

metal oxide surge arrester accurate modeling and its parameter identification are very important for insulation coordination studies, arrester allocation and system reliability. since quality and reliability of lightning performance studies can be improved with the more efficient representation of the arresters´ dynamic behavior. in this paper, big bang – big crunch and hybrid big bang – big cr...