Results 51 to 60 of about 4,686 (224)
Sifat Dielektrik Campuran Gas CO2 dengan Nitrogen (N2) Dibawah Terpaan Medan Tinggi DC Polaritas Positif [PDF]
Sulfur hexafluoride gas (SF6) is widely used in the power electrical system such as circuit breaker, gas insulated switchgear (GIS) and gas insulated line (GIL).
Anderson, M. (Michael) +1 more
core
A systematic study of a series of porous organic cages with perfluorinated alkyl side‐chains of different lengths is presented. The structure‐property relationship of the various cages on gas sorption of highly potent greenhouse gases, such as perfluorocarbons (PFCs), sulfur hexafluoride (SF6), and nitrogen trifluoride (NF3) is investigated.
Ke Tian +8 more
wiley +1 more source
Applying an analytical framework to production process improvement [PDF]
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
core
A frequency-based RF partial discharge detector for low-power wireless sensing [PDF]
Partial discharge (PD) monitoring has been the subject of significant research in recent years, which has given rise to a range of well-established PD detection and measurement techniques, such as acoustic and RF, on which condition monitoring systems ...
Baker, P.C. +2 more
core +1 more source
Analisis Gangguan Pada Sistem Gardu Listrik Berbasis Gas Insulated Switchgear 150 kV Dengan Metode High Voltage Test [PDF]
The insulator system in substations is essential in maintaining safety and efficiency in electricity transmission and distribution lines. The purpose of this research is to conduct High Voltage tests to check possible malfunctions in a gas-insulated ...
Bachri, Karel Octavianus +3 more
core +2 more sources
ABSTRACT Surface discharge is a typical fault type in electric power equipment. High temperature in long‐term operation can easily lead to ageing of materials, resulting in changes in surface characteristics and surface discharge faults. In this paper, a method of surface discharge identification of silicon rubber (SiR) based on spectral detection ...
Yanze Han +6 more
wiley +1 more source
Adsorption properties of Ni cluster modified TiO2 (1 0 1) towards SF6 decomposition gases
Online detection of insulation defects the decomposition products of SF6 plays a key role in ensuring the safe operation of the gas‐insulated switchgear (GIS) equipment. The pristine TiO2 (1 0 1) modified by Ni cluster (1–3 Ni atoms) is used as a new gas‐
Yingang Gui +3 more
doaj +1 more source
Quantification of the performance of iterative and non-iterative computational methods of locating partial discharges using RF measurement techniques [PDF]
Partial discharge (PD) is an electrical discharge phenomenon that occurs when the insulation materialof high voltage equipment is subjected to high electric field stress. Its occurrence can be an indication ofincipient failure within power equipment such
Alistair J. Reid +29 more
core +1 more source
Nondestructive Measurement of Residual Stress on Epoxy Insulators Using Thermoelastic Method
ABSTRACT Residual stress is inevitable in epoxy insulators, which easily leads to small cracks and even insulation breakdown during the operation of gas‐insulated transmission line (GIL)/gas‐insulated switchgear (GIS). This study proposes a nondestructive method to measure the residual stress on epoxy insulators using thermoelastic effects.
Hucheng Liang, Bei Chu, Boxue Du
wiley +1 more source
ABSTRACT Many researchers are committed to improving the diagnosis accuracy and solving the few‐shot problem on circuit breakers (CBs). However, the research on the vibration transmission mechanism of the fault is insufficient, which makes it difficult to find the potential design defects of CBs through vibration.
Jiayi Gong +3 more
wiley +1 more source

