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Flashover phenomenon: an analysis with influence of the thickness of the layer pollution of the high voltage polluted insulators
(Institute of Electrical and Electronics Engineers (IEEE), 1994-12-01)
Results of the analysis of dynamic behavior of flashover phenomenon on the high voltage-polluted insulators are presented. These results were taken from a mathematical and an experimental model that introduce the variable ...
Modelling of the influence of the layer pollution thickness in high voltage polluted insulators
(1995-12-01)
An experimental model and a mathematical model with the introduction of a ramp in the channel of Obenaus model are presented. The aim is to present a better reproduction of the real layer pollution deposited on the HV ...
Dielectric behavior of XLPE aged under multi-stressing conditions
(2005-12-01)
In this work fresh cables were laboratory aged under multi-stressing conditions at room temperature. Foils were peeled from cables, with approximately 150 ?m thickness, from the outer, middle and inner positions of the ...
The application of neural networks to the analysis of dissolved gases in insulating oil used in transformers
(Institute of Electrical and Electronics Engineers (IEEE), 2000-01-01)
The state of insulating oils used in transformers is determined through the accomplishment of physical-chemical tests, which determine the state of the oil, as well as the chromatography test, which determines possible ...
Dynamic analysis of flashover in high voltage DC polluted insulator
(1992-01-01)
The actual voltage growing in electrical power systems make the insulation studies, very important. In this, one of the principal problems is the development of discharges in surface polluted high tension insulators. Under ...
A new high voltage polymer insulator for electrical distribution system from oil of Mamoma trees.
(Institute of Electrical and Electronics Engineers (IEEE), 1995-01-01)
High Voltage Optical Sensor Insulation Using PLA (Polylactic Acid)
(Ieee, 2018-01-01)
Electric power systems, especially after the advent of smart grids, require intelligent voltage and current meters devoted to energy billing, control, protection and quality monitoring. Novel Optical Voltage Sensors (OVS) ...
High voltage optical sensor insulation using PLA (Polylactic Acid)
(2019-01-25)
Electric power systems, especially after the advent of smart grids, require intelligent voltage and current meters devoted to energy billing, control, protection and quality monitoring. Novel Optical Voltage Sensors (OVS) ...
Reliability evaluation of power transformers using partial discharge testing and measurement of low molecular mass acids in insulating oil
(2014-11-10)
The transformer is a fundamental part in electrical power systems. This equipment represents high cost and requires greater attention during maintenance activities. To avoid interruptions, it is important to evaluate the ...