Results 61 to 70 of about 1,999 (210)
SF6 Emissions from a National Population of High-Voltage Switchgear [PDF]
, 2023 Twenty years of careful recordings of SF6 inventories and emissions from a large switch-gear population show that by implementing appropriate measures, annual emission rates as low as 0.2% can be achieved.
Istad, Maren Kristine, Runde, Magne
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High Voltage, Volume 10, Issue 6, Page 1582-1592, December 2025.ABSTRACT The optical emission spectra (OES) reflect the presence of excited states in the gaseous discharge, which are directly linked to the decomposition characteristics of insulating gases. In this study, a pin/rod–plate discharge reactor driven by either a high‐voltage direct current (DC) generator or a pulsed generator was developed to establish ...
Chenxi Man +5 more
wiley +1 more source
Applying an analytical framework to production process improvement [PDF]
, 2007 Thesis (M.B.A.)--Massachusetts Institute of Technology, Sloan School of Management; and, (S.M.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering; in conjunction with the Leaders for Manufacturing Program at MIT, 2007 ...
Underwood, Curtis J. (Curtis James) +1 more
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HVDC Submarine Power Cables in the World: State-of-the-Art Knowledge [PDF]
, 2015 This report is the first deliverable of the OTG ("Offshore Transnational Grid") Work Package (2015-2016), which is intended to identify and analyse the engineering and geopolitical challenges for realising a transcontinental energy interconnection ...
ARDELEAN MIRCEA, MINNEBO PHILIP
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High Voltage, Volume 10, Issue 6, Page 1380-1389, December 2025.ABSTRACT Partial discharge (PD) is the indicator of the insulation defect in cables. However, the pulse current method, which is widely adopted in land cables, cannot obtain PD signals of high‐voltage direct current (HVDC) submarine cables due to attenuation and installation position.
Hang Wang +7 more
wiley +1 more source
High Voltage, Volume 10, Issue 4, Page 890-902, August 2025.Abstract Accurately identifying the location and type of internal defects in gas‐insulated switchgear (GIS) is a challenge. To address this challenge, this study proposes a novel method for the nondestructive detection of GIS internal defects. This method is based on x‐ray digital radiography (X‐DR) technology and an improved real‐time models for ...
Guote Liu +3 more
wiley +1 more source
UHF diagnostic monitoring techniques for power transformers [PDF]
, 2004 This paper initially gives an introduction to ultra-high frequency (UHF) partial discharge monitoring techniques and their application to gas insulated substations.
Bennoch, C.J. +3 more
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High Voltage, Volume 10, Issue 4, Page 831-844, August 2025.Abstract Mechanical vibration defect is the key factor leading to sudden failure of gas‐insulated switchgear (GIS) equipment. It is important to realise effective prediction of the mechanical vibration state development trend of GIS equipment in order to improve its active safety protection level.
Xu Li +5 more
wiley +1 more source
A novel GIS breakdown location method based on natural frequency of transient voltage
High Voltage, Volume 10, Issue 4, Page 856-875, August 2025.Abstract During on‐site withstand voltage tests of gas‐insulated switchgears (GIS), once a breakdown occurs, it is hard to locate the breakdown position due to the intricate branch structures and minimal breakdown energy. The existing methods may require the placement of a large number of sensors with unsatisfactory accuracy, which adversely affects ...
Qiang Sun +9 more
wiley +1 more source
Nanocrystalline based Mitigation Technique for Very Fast Transient over Voltages in Gas Insulated Substations [PDF]
, 2021 : in gas insulated substations, issue of very fast transient over voltages is very familiar problem because of its effects on live ultra-high voltage equipment.
et. al., R.Durga Rao,
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