High voltage insulation of bushing for HTS power equipment

Kim, Woo Jin; Choi, Jaehoon; Kim, Sang-Hyun

doi:10.1016/j.cryogenics.2012.05.006

Cited by 11 publications

(4 citation statements)

References 6 publications

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“…6, in which the cohesion and friction aspect is less. Heating ageing reduced the lipophobicity of foam polymers [11,12].…”

Section: Analysis Of Thermal Agingmentioning

confidence: 99%

An investigation on the electrical ageing properties of fibre sheathing compounds in power transformer oil

2021

Webology

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Fibre optic cable offers a lot of promise in enabling surveillance of genderqueer people. The electromagnetic ageing study of sales and better sheathing model is provided throughout this work using a progressive amperage approach, as well as the impact of exposure to elevated temperatures on electromagnetic ageing was identified. When compared to the petroleum insulating effectiveness for typical converters, propylene is conducive to good, polyethylene terephthalate, as well as biopolymer, performed better. Both the impact of educational substances as well as petroleum testing results were statistically analysed using such a two-parameter approach. Gumbel's product line Both inverted strength as well as logarithmic equations have been utilised to make accurate predictions, as well as the Auxetic object's electrical sensitivity values have been calculated. These practical findings demonstrate that perhaps the ETFE regression models inside the inverted polynomial equation as well as exponentially functional models outperform those for the petroleum insulating oil, as well as the sheathing fibre is ETFE able to be maintained inside the transformers reliably.

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“…6, in which the cohesion and friction aspect is less. Heating ageing reduced the lipophobicity of foam polymers [11,12].…”

Section: Analysis Of Thermal Agingmentioning

confidence: 99%

An investigation on the electrical ageing properties of fibre sheathing compounds in power transformer oil

2021

Webology

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“…If indeed the potential difference remains over the scaling factor, the safety mechanism states that the electronic controller is now in regular operation. This issue is detected whenever the potential difference falls under 80% of the nominal current as well as remains over 15 milliseconds [11].…”

Section: Fig1 DC Current Output Of Different Locations Of R10mentioning

confidence: 99%

Lime-Rich Sludge Catalysis of Powdered Blast-Furnace Slag with and Without Rice Husk Ash

2021

Webology

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Considering renewed interest in a number of co-seventeenth-century DC distribution communication systems for grid-connected massive solar and wind power systems It is difficult to secure cross-DC power supply conversions (VSC)-based DC distribution networks from current disturbances. The work describes a human overvoltage prevention strategy inside a multiple VSC-HVDC electric grid. Some under-criteria are employed to differentiate between DC problems and transitory vs. ordinary situations. Internally, errors are distinguished from exterior failures using the volatility of the power factor, in addition to the fluctuation of transitory power. When rapid periods like battery discharge as well as diode swinging occur, this DC short circuit current reaches a really significant importance in a few clock cycles. Current reactors are linked with something like the Thyristor to keep a DC breakdown power within the breaking capability. This human safety strategy is compared with experimental overvoltage scenarios using a multiple Droop control network infrastructure and rectifier devices. Overvoltage signals are generated by spike modelling, and the safety strategy is validated within the MATLAB platform. This suggested security technique provides robust security for current failures inside a multiple space vector electricity network, according to the basis of empirical evidence.

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“…Its exceptional mechanical and insulating characteristics have made it indispensable in sectors like electricity, machinery, and medicine [8][9][10][11] . However, environmental factors, such as light, oxygen, temperature, and humidity, can instigate changes in its chemical composition and structure, leading to degradation, cross-linking, and consequent physical impairments like discoloration, brittleness, and strength loss, especially in high voltage bushings [12] .…”

Section: Introductionmentioning

confidence: 99%

Effect of Thermal Aging on Mechanical Performance of GF/PBT Composites for High Voltage Bushing

Wang,

Zhou,

Shang

et al. 2024

Preprint

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The present work aims to study the mechanical performance of glass fiber reinforced polybutylene terephthalate (GF/PBT) composite materials used for high-pressure casing under different thermal aging temperatures. Both tensile and three-point bending tests are conducted on the thermally aged GF/PBT samples. Meanwhile, the stress analysis is performed using the finite element method, and the tensile fracture morphology and mode are observed using a scanning electron microscope. The findings reveal a decline in both tensile and bending strengths of GF/PBT as the aging temperature rises. It is worth noting that the elastic modulus of the composite samples remained relatively unaffected by thermal aging. The thermally aged materials exhibit brittle fracture, which directly affects the bonding performance between glass fibers and PBT matrix.

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High voltage insulation of bushing for HTS power equipment

Cited by 11 publications

References 6 publications

An investigation on the electrical ageing properties of fibre sheathing compounds in power transformer oil

An investigation on the electrical ageing properties of fibre sheathing compounds in power transformer oil

Lime-Rich Sludge Catalysis of Powdered Blast-Furnace Slag with and Without Rice Husk Ash

Effect of Thermal Aging on Mechanical Performance of GF/PBT Composites for High Voltage Bushing

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