2016
DOI: 10.1142/s2010135x16300012
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Abstract: Due to their excellent electrical insulation properties and processability, polymer materials are used in many electrical products. It is widely believed that space charge plays an important role for the electric field distribution, conduction, ageing, and electric breakdown of polymeric insulation. This paper reviews measurements and characteristics of space charge behavior which mainly determined by the pulsed electro-acoustic (PEA) measurement technique. Particular interests are the effects of the applied v… Show more

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Cited by 9 publications
(6 citation statements)
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References 93 publications
(125 reference statements)
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“…The PEA method was first invented by Maeno in 1980s [14]. It has been modified and developed to meet various investigation needs [15]. The PEA system can be divided into four parts, including high voltage source, electric pulse generator, electrode system, and data acquisition system, as shown in Fig.…”
Section: Pea Methodsmentioning
confidence: 99%
“…The PEA method was first invented by Maeno in 1980s [14]. It has been modified and developed to meet various investigation needs [15]. The PEA system can be divided into four parts, including high voltage source, electric pulse generator, electrode system, and data acquisition system, as shown in Fig.…”
Section: Pea Methodsmentioning
confidence: 99%
“…The behavior of space charges is totally different depending on the crystallinity degree of polymer films because the density and level of charge traps are related to the film microstructure [101], [102]. Therefore, higher crystallinity films showed more accumulation of homocharge and lower mobility as well as more deep traps [103].…”
Section: Space Charge and Self-healing Under Various Voltgae Wavementioning
confidence: 99%
“…Consequently, the accumulation of space charges and distortion of the electric field being more intense within a thick film than in a thin film. In this regard, the molecular weight of polymers plays an important role in determining the film thickness and therefore the amount of space charge accumulation [103], [104]. Anyway, with the growing demand to utilize thin films, the non-destructive space charge measurement methods have evolved over the past years to satisfy the requirements of accuracy and reliability.…”
Section: Space Charge and Self-healing Under Various Voltgae Wavementioning
confidence: 99%
“…The prepared LSC powder was ball milled in a planetary ball mill, where 10 g of LSC powder and zirconia balls (mass ratio of zirconia balls to LSC powder of 20:1) were added to a ball mill jar, On the other hand, space charge accumulation of the insulating layer is another key factor affecting the stable operation of the cable. Insulating layers tend to accumulate space charge, which causes distortion of the electric field [16,17]. Eventually, the insulating layer is easily aging or mangled [18][19][20].…”
Section: Ball Milling Of Lscmentioning
confidence: 99%