Effects of mechanical stretching on space charge behaviors of PP/POE blend for HVDC cables

Du, B. X.; Xu, Hang; Li, Jin

doi:10.1109/tdei.2017.006116

Cited by 54 publications

(27 citation statements)

References 33 publications

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“…When there is no internal charge in the sample, there will be no existence of space charge too in the sample. It just only the induced charge that is generated on the electrode reported by Du, Xu and Li [5], Chahal and Reddy [6] and Wei et al [7]. Figure 1 shows an example of profile obtained by PEA where red, blue and green line represent the charge density, electric field and potential [43] respectively.…”

Section: Fundamental Of Space Charge 21 Pea Theory Profile and Conmentioning

confidence: 93%

“…Moreover, the geometric field known as a constant electric field, is excited by an applied voltage that is superimposed with an electric field and accumulates space charge in the insulation system. Also, the morphologies of crystalline and amorphous regions relate to space charge behaviur [5]. Undoubtedly, various issues such as the type of electrode, applied field and temperature may affect the space charge accumulation in polymers [6].…”

Section: Introductionmentioning

confidence: 99%

“…In a like manner, researcher also explored [7] the space charge in different works such as measurement of the breakdown voltage using the PEA technique. So, method that based on PEA technique [1][2][3][4][5][6][7] was used to measure, describe and testing space charge profiles. Further, there are several review papers concentrating on an acoustic over a decade.…”

Section: Introductionmentioning

confidence: 99%

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Review of space charge measurement by pulsed electro-acoustic technique

Kandar

Jamail

Othman

et al. 2020

IJEECS

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<p>Pulsed electro-acoustic (PEA) is well known as a non-destructive technique for testing and describing space charge profiles in the insulation. Degradation due to moisture, ageing, external flashover, partial discharge and space charge are considered as insulation defects that is an issue in high voltage insulator. Space charge may distort the internal electric field that may lead to an electrical breakdown. For instance, a method based on an acoustic phenomenon can be used to describe the space charge profiles. This paper compares several earlier researches on different specimen of PEA method and reviews their results to find the space charge distribution profiles. The scope of the review includes types of methods used. The acoustic technique is considered for this study. It has been observed that the PEA technique successfully gives the same result as theoretical that is based on the obtained profile. Linear low-density polyethylene (LLDPE) composite demonstrates about 89 % lower charge density value compared to cross-linked polyethylene (XLPE) and polypropylene (PP) composite. While the electric field value of ethylene-vinyl acetate (EVA) sample is 75 % lower than low-density polyethylene (LDPE) sample. This study found that the time interval, specimen thickness and the electric field sway the space charge profiles. </p>

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Section: Fundamental Of Space Charge 21 Pea Theory Profile and Conmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Review of space charge measurement by pulsed electro-acoustic technique

Kandar

Jamail

Othman

et al. 2020

IJEECS

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“…[ 9–11 ] One of these forms is the blending of thermoplastic elastomers (TPE) to polypropylene, the first having low elastic modulus, high elongation, good impact toughness, and compatibility with polyolefins depending on their chemical structure. [ 12–19 ]…”

Section: Introductionmentioning

confidence: 99%

“…[ 11,12 ] However, with the addition of an element to perform a property transformation, it generally happens that other properties are also modified, requiring a balance between the pros and cons. [ 13–15 ]…”

Section: Introductionmentioning

confidence: 99%

Flexible, High‐Density and Water‐Resistant Polypropylene/Thermoplastic Elastomer/Inorganic Fillers Composites

Barbosa

Blanco

Ambrósio

2020

Macromolecular Symposia

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This work is aimed at preparing composites from polypropylene (PP) and ethylene‐octene copolymer (thermoplastic elastomer ‐ TPE) blends with different fillers (talc, mica, and barium sulfate). Characterizations of ash content, melt flow index, density, flexural and tensile properties, impact resistance, hardness, moisture content, and water absorption are realized. The development of these composites intent to obtain materials with higher density and flexibility than PP, pursuing applications in outdoor, high humidity, or immersion in fluids. Interesting results are obtained, mainly with the use of barium sulfate, which increased the density of PP by 45% with the addition of 12 vol.%. Besides the fillers, the addition of TPE is effective in reducing the stiffness and improving the impact toughness, making possible the filler addition without flexibility losses. In this case, the barium sulfate composites showed flexural modulus close to PP/TPE modulus and impact strength superior to pure PP and PP/TPE blend. The composites moisture content and water absorption also show better results from barium sulfate samples, indicating this filler as a great component to composites that pursues high density, flexibility maintenance, and capable to work in the presence of water.

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Space Charge and Dielectric Breakdown

2024

Polypropylene Cable Insulation

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Effects of mechanical stretching on space charge behaviors of PP/POE blend for HVDC cables

Cited by 54 publications

References 33 publications

Review of space charge measurement by pulsed electro-acoustic technique

Review of space charge measurement by pulsed electro-acoustic technique

Flexible, High‐Density and Water‐Resistant Polypropylene/Thermoplastic Elastomer/Inorganic Fillers Composites

Space Charge and Dielectric Breakdown

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