Study on conduction current and space charge accumulation simultaneously in Ethylene Propylene Diene Monomer film

Wang, Weiwang; Tanaka, Yasuhiro; Fujitomi, Toshiyuki; Takada, Tatsuo; Li, Shengtao

doi:10.1109/icempe.2017.7982129

“…In [17], the space charge characteristics of interface between EPR and LDPE under different surface state controlled by the fluorination time were studied, the results show that the fluorination can effectively suppress the interface charge. In [18], the effect of electric stress on the space charge characteristics of EPDM was studied by measuring and analyzing the space charge distribution and conduction current simultaneously, which reveals the energy loss dynamics caused by space charge. In [19], the electrical conductivity and permittivity were measured and supported the increase of the ionic dipoles during ageing process.…”

Section: Introductionmentioning

confidence: 99%

Effect of thermal ageing on space charge in ethylene propylene rubber at DC voltage

Men

¹

,

Lei

²

,

Song

³

et al. 2019

IEEE Trans. Dielect. Electr. Insul.

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To understand the space charge characteristics of ethylene propylene rubber (EPR) used in MV/HV power cables under thermal stress, the space charge profile is measured by the pulsed electro-acoustic method under 20 kV/mm at 120 and 160 °C. The complex permittivity and physicochemical properties at the different ageing stages are measured and analyzed for an understanding of the effects of thermal ageing on space charge characteristics. The trap properties of EPR during thermal ageing is calculated and analyzed based on the space charge decay model. The results show that both the ageing time and temperature can affect the space charge characteristics of EPR. The space charge characteristics of EPR can be ascribed to the trapping sites caused by the complex chemical and physical structures during thermal ageing. Under the thermal oxygen process, the polar groups and ions increase because of the EPR molecular chain breakages, and the charge injection from the electrodes increases. Based on the decay model of space charge and isothermal decay current theory, the distribution of trap levels in EPR at different ageing stages is obtained. The trap distribution under different ageing process can be explained by the theory of trap filling.

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“…In [17], the space charge characteristics of interface between EPR and LDPE under different surface state controlled by the fluorination time were studied, the results show that the fluorination can effectively suppress the interface charge. In [18], the effect of electric stress on the space charge characteristics of EPDM was studied by measuring and analyzing the space charge distribution and conduction current simultaneously, which reveals the energy loss dynamics caused by space charge. In [19], the electrical conductivity and permittivity were measured and supported the increase of the ionic dipoles during ageing process.…”

Section: Introductionmentioning

confidence: 99%

Effect of thermal ageing on space charge in ethylene propylene rubber at DC voltage

Men

¹

,

Lei

²

,

Song

³

et al. 2019

IEEE Trans. Dielect. Electr. Insul.

View full text Add to dashboard Cite

To understand the space charge characteristics of ethylene propylene rubber (EPR) used in MV/HV power cables under thermal stress, the space charge profile is measured by the pulsed electro-acoustic method under 20 kV/mm at 120 and 160 °C. The complex permittivity and physicochemical properties at the different ageing stages are measured and analyzed for an understanding of the effects of thermal ageing on space charge characteristics. The trap properties of EPR during thermal ageing is calculated and analyzed based on the space charge decay model. The results show that both the ageing time and temperature can affect the space charge characteristics of EPR. The space charge characteristics of EPR can be ascribed to the trapping sites caused by the complex chemical and physical structures during thermal ageing. Under the thermal oxygen process, the polar groups and ions increase because of the EPR molecular chain breakages, and the charge injection from the electrodes increases. Based on the decay model of space charge and isothermal decay current theory, the distribution of trap levels in EPR at different ageing stages is obtained. The trap distribution under different ageing process can be explained by the theory of trap filling.

show abstract

Interfacial charge dynamics of cross-linked polyethylene/ethylene-propylene-diene dual dielectric polymer as revealed by energy band structure

Wang

¹

,

Li

²

,

Tanaka

³

et al. 2019

IEEE Trans. Dielect. Electr. Insul.

View full text Add to dashboard Cite

Study on conduction current and space charge accumulation simultaneously in Ethylene Propylene Diene Monomer film

Cited by 3 publications

References 9 publications

Effect of thermal ageing on space charge in ethylene propylene rubber at DC voltage

Effect of thermal ageing on space charge in ethylene propylene rubber at DC voltage

Effect of thermal ageing on space charge in ethylene propylene rubber at DC voltage

Interfacial charge dynamics of cross-linked polyethylene/ethylene-propylene-diene dual dielectric polymer as revealed by energy band structure

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