Study on the effect of humidity on dielectric response and partial discharges activity of machine insulation materials

2009 ◽  
Author(s):  
Reza Soltani ◽  
Eric David ◽  
Laurent Lamarre
Keyword(s):  
Dielectric Response ◽  
Partial Discharges ◽  
Insulation Materials

Frequency Characteristics of Transformer Windings

2013 ◽  
pp. 111-150
Author(s):  
Charles Su
Keyword(s):  
Partial Discharge ◽  
Frequency Characteristics ◽  
Core Structure ◽  
Partial Discharges ◽  
Low Frequencies ◽  
Technical Problems ◽  
High Frequencies ◽  
Insulation Materials ◽  
Transformer Winding ◽  
Switching Impulses

Transformers are subjected to voltages and currents of various waveforms while in service or during insulation tests. They could be system voltages, ferroresonance, and harmonics at low frequencies, lightning or switching impulses at high frequencies, and corona/partial discharges at ultra-high frequencies (a brief explanation is given at the end of the chapter). It is of great importance to understand the frequency characteristics of transformer windings, so that technical problems such as impulse distribution, resonance, and partial discharge attenuation can be more readily solved. The frequency characteristics of a transformer winding depend on its layout, core structure, and insulation materials.

Surface analyses of insulation materials eroded by partial discharges

2020 ◽  
Author(s):  
Afef Houachtia ◽  
Pascal Rain ◽  
Cedric Abadie ◽  
Emilie Fond ◽  
Louiza Fetouhi
Keyword(s):  
Partial Discharges ◽  
Insulation Materials

Editorial: Partial discharges

1995 ◽  
Vol 142 (1) ◽  
pp. 1-3 ◽  
Author(s):  
J.C. Fothergill ◽  
F.H.. Kreuger ◽  
A. Kelen ◽  
G.C. Stevens
Keyword(s):  
Partial Discharges

Nonlocal dielectric response in dipolar polymers

1993 ◽  
Vol 3 (4) ◽  
pp. 503-513 ◽  
Author(s):  
M. Warner ◽  
M. E. Cates
Keyword(s):  
Dielectric Response

Enhanced dielectric response in (BEDT-TTF) (ClMeTCNQ) at the neutral-ionic phase transitions

2004 ◽  
Vol 114 ◽  
pp. 137-139
Author(s):  
Y. Takahashi ◽  
T. Hasegawa ◽  
T. Akutagawa ◽  
T. Nakamura
Keyword(s):  
Phase Transitions ◽  
Dielectric Response

DIELECTRIC RESPONSE AND ENERGY LOSS FOR AN INTERMEDIATE QUANTUM PLASMA

1979 ◽  
Vol 40 (C7) ◽  
pp. C7-513-C7-514
Author(s):  
N. E. Frankel ◽  
K. C. Hines ◽  
R. D.B. Speirs
Keyword(s):  
Energy Loss ◽  
Dielectric Response ◽  
Quantum Plasma

Antenna array layout for the localization of partial discharges in open-air substations

2015 ◽  
Author(s):  
Guillermo Robles ◽  
José Manuel Fresno ◽  
Matilde Sánchez-Fernández ◽  
Juan Manuel Martínez-Tarifa
Keyword(s):  
Antenna Array ◽  
Partial Discharges
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