HVDC transmission has become increasingly necessary to connect renewable energy
sources to the existing AC voltage grids. Recently several long distance HVDC …

To improve the reliability of satellites, there are many standby configurations in the key
subsystems. Concerning the on-orbit operation of standby systems, the standby units usually …

The occurrence of frequent high impulse currents during the process of switching-on AC
filter banks can accelerate the aging of arresters in ultrahigh-voltage direct-current (UHVDC) …

As an important aspect of breaker reliability analysis, the lifetime of a hybrid high-voltage
direct current (HVDC) breaker is estimated in this paper. Based on the equivalent thermal …

The working life evaluation of metal oxide varistor (MOV) is always expected by MOV
manufacturers and users. In Oct. 2019, the International Electrotechnical Commission (IEC) …

Surges caused by lightning strikes could damage electrical components in photovoltaic (PV)
systems. Metal oxide varistors (MOVs) are commonly used to protect PV systems from …

To overcome the disadvantages of the traditional proportional intensity model which ignores
the past effects of working conditions, this paper proposes an improved proportional …

Reliability assessment of MOSA devices requires accurate estimation of life distribution
parameters or reliability predictors. Estimated reliability predictors consist of reasonable …

The majority of South Africa's electricity is generated from fossil-fuel plants that use mainly
coal. In these power plants, the combustion of these fossil fuels liberates greenhouse …

In the modern grid different types of voltage disturbances in the power supply are expected
due to the integration of renewable energy sources and electric vehicles. These voltage …