Analysis of VFTO during the failure of a 550-kV gas-insulated substation

DC Moreira, MVA Nunes, DDC Moreira… - Electric Power Systems …, 2020 - Elsevier
This paper presents an analysis of a very fast transient overvoltage (VFTO) experienced by a
550-kV gas-insulated substation (GIS) that caused the failure of a disconnector switch (DS) …

Very fast transient over-voltages and transient enclosure voltages in gas insulated substations

J Amarnath, DRK Paramahamsa… - 2003 Annual Report …, 2003 - ieeexplore.ieee.org
Gas Insulated Substations have found a broad range of applications in power systems over
the last three decades because of their high reliability, easy maintenance, small ground …

Very fast transient overvoltage calculation and evaluation for 500‐kV gas insulated substation power substation with double circuit and long gas insulated substation …

R Fu, J Wang, J Wang, M Zhou, C Li… - IET Generation …, 2023 - Wiley Online Library
The operation of disconnectors in gas insulated substation (GIS) or power plant will produce
very fast transient overvoltage (VFTO), which is considered to have serious harm to …

[PDF][PDF] Analysis of very fast transient Overvoltages in a proposed 275 kv gas insulated substation

DTA Kho, KS Smith - IPST2011, 2011 - ipstconf.org
Very Fast Front Transient Overvoltages (VFTO) in a 275 kV gas insulated substation have
been analysed using PSCAD-EMTDC. The Gas insulated substation (GIS) components …

Improved cable connection to mitigate transient enclosure voltages in 220-kV gas-insulated substations

A Khamlichi, G Donoso, F Garnacho… - IEEE Transactions …, 2015 - ieeexplore.ieee.org
Very fast transient overvoltages (VFTOs) due to switching operations can appear between
the gas-insulated substation (GIS) enclosures and the cable sheaths and between these …

Very fast transient overvoltage waveshapes in a 500-kV gas insulated switchgear setup

JG Rodrigues Filho, JA Teixeira… - IEEE Electrical …, 2016 - ieeexplore.ieee.org
Very fast transient overvoltages (VFTOs) may be generated in SF 6 gas insulated switchgear
(GIS) due to a series of arc ignitions and extinctions, during the operation of disconnecting …

Disconnector switching induced transient voltage and radiated fields in a 1100 kV gas insulated substation

MA Haseeb, MJ Thomas - Electric power systems Research, 2018 - Elsevier
Very fast transient overvoltages (VFTO) generated in a gas insulated substation (GIS) during
disconnector switching operations are one of the major concerns in insulation design of the …

Very fast transient overvoltages generated by gas insulated substations

DS Pinches, MA Al-Tai - 2008 43rd International Universities …, 2008 - ieeexplore.ieee.org
Very fast transient overvoltages (VFTO) are caused by disconnector switching operations
within a gas insulated substation (GIS). The very fast transient overvoltages contains very …

Calculation of very fast transient overvoltages in GIS

T Lu, B Zhang - 2005 IEEE/PES Transmission & Distribution …, 2005 - ieeexplore.ieee.org
This paper refers to 500kV gas insulated substation (GIS) of the Tian Huangping pumped
storage power station in East China Power System. With the current Electro-magnetic …

Research on VFTO simulation analysis of 1000 kV GIS test circuit considering dynamic arcing model

Y Zhang, X Chen, H Cui, J Si, Z He… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
In the research process of very fast transient overvoltage (VFTO), the accuracy of the
switching arc model largely determines the calculation results of VFTO. How to more …