When applying radio-frequency (RF) techniques to measure and monitor partial discharges
(PD), the CIGREsensitivity verification'recommendation details a methodology for achieving …

This paper investigates the effect of mode transition from low-frequency transverse
electromagnetic (earth-return wave) to high-frequency Sommerfeld-Goubau (surface wave) …

This paper performs thorough investigations of very fast transients (VFTs) in a 500 kV gas-
insulated substation (GIS) by adopting complete earth-return impedance and admittance …

Very fast transient overvoltages (VFTO) are a well-known phenomenon in gas-insulated
switchgear. They are mainly generated due to several pre-or restrikes during disconnector …

During the switching of disconnectors in gas-insulated switchgear (GIS), repeated strikes
occur in the contact gap and lead to very fast transient overvoltage (VFTO). Severe VFTO …

This paper consists of investigating the vacuum arc behavior during the high-current
interruption process with a new innovative coaxial double-contact system. The structure of …

This paper is focused on the oscillating frequencies of very-fast transients (VFTs) generated
by disconnector and circuit breaker operations in gas-insulated substations (GISs) related to …

So-calledtime-of-flight'(TOF) measurements have been employed for locating PD sources
within GIS for over 20 years. Portable digital sampling oscilloscopes have now become …

Development and type testing of gas-insulated switchgear (GIS) disconnectors are
supported with the simulation-based analyses of very fast transients (VFTs) that are …

Very fast transient overvoltage (VFTO) generated by operating disconnect in gas insulated
substations has great concern in high voltage rated substation. Because many effecting …