Results 101 to 110 of about 86,487 (250)
UHF diagnostic monitoring techniques for power transformers
, 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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Avaliação dos ensaios de descargas parciais e de rotor bloqueado como formas de detecção de defeitos de fabricação em estatores de motores de indução monofásicos [PDF]
, 2013 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Mecânica, Florianópolis, 2013.Como parte da garantia da qualidade na produção de estatores de motores de indução monofásicos, são
Cristancho Caviativa, Jorge Alejandro
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Degradation processes of voids in solid dielectrics under AC applied fields
, 2013 This Thesis is concerned with an experimental study into the degradation processes that occur when voids in solid dielectric materials experience high applied electric fields.
Bai, Tianyu
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Experimental investigation into the propagation of partial discharge pulses in transformers
, 2002 An experimental investigation into the propagation behaviour of partial discharge (PD) pulses in a continuous disc type 6.6kV transformer winding is described in this paper.
Darwin, A. +4 more
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IET Science, Measurement & TechnologySwitchgear can develop insulation defects due to electrical, thermal, and chemical stresses during manufacturing or prolonged operation. Moreover, as voltage levels rise, multiple insulation defects can coexist within the switchgear.
Feng Wang +10 more
doaj +1 more source
An electrical PD location method applied to a continuous disc type transformer winding
, 2003 A 6.6 kV continuous disc type winding of a distribution transformer is used to investigate the propagation of partial discharges (PD) with the aim of location. The winding was modelled, as multiconductor transmission lines with each turn represented by a
Darwin, A. +5 more
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Study of surface discharge behaviour at the oil-pressboard interface
, 2013 This thesis is concerned with the surface discharge behaviour at the oil-pressboard interface. For large transformers this is classified as a serious failure mode because it can lead to catastrophic failure under normal AC voltage operating conditions ...
Zainuddin, H
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, 2012 Includes bibliographical references.Keeping generators available on-line is a major factor in achieving maximum productivity in power generation. During operation, generator components are continuously exposed to thermal, electrical, mechanical and ...
Mark Anthony Bruintjies +1 more
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Electrical Treeing in Silicone Rubber
, 2011 Electrical treeing has been widely studied in a range of polymeric materials. In these investigations, the morphology and PD patterns associated with the growth of electrical trees in a model transparent silicone rubber were investigated using a new ...
Freebody, N A +4 more
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