Corona Discharge Problem in Extra High Voltage Transmission Line

Зайцев, Євген; Kuchanskyy, Vladislav

doi:10.1007/978-3-030-69189-9_1

Cited by 21 publications

(5 citation statements)

References 18 publications

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“…Corona discharge is an electrical discharge that occurs when gas partially breaks down in an uneven electric field between two electrodes (Zaitsev & Kuchanskyy, 2021). One electrode, called the corona electrode, has a small curved shape, while the other electrode is blunt and grounded.…”

Section: Corona Discharge Plasmamentioning

confidence: 99%

Effect of cold plasma on lipid oxidation of fish and fish‐based products: a review

Jing

Cui

2023

Int J of Food Sci Tech

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SummaryLipid oxidation is a major concern in preserving fish and its products, as it affects their quality, shelf life, and consumer acceptance. Cold plasma technology has emerged as a promising method for extending the shelf life of perishable products, including fish. However, the impact of cold plasma on lipid oxidation remains uncertain, as studies have reported conflicting findings. This review provides an up‐to‐date overview of the effects of cold plasma treatment on lipid oxidation in fish and fish‐based products, synthesising existing literature in the field. A comprehensive analysis of factors such as plasma generation techniques, treatment parameters, fish species, and lipid composition is conducted to elucidate the observed discrepancies in outcomes. In conclusion, current research suggests that moderate oxidation does not have adverse effects on overall sensory quality and may even enhance the flavour of fish. The degree of oxidation can be controlled through plasma parameters, thereby improving the quality of fish and fish products.

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Section: Corona Discharge Plasmamentioning

confidence: 99%

Effect of cold plasma on lipid oxidation of fish and fish‐based products: a review

Jing

Cui

2023

Int J of Food Sci Tech

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“…Corona effect is an effect of violet glow, hissing noise, and production of ozone gas in a high voltage overhead transmission line. Since the formation of the corona causes energy loss, some part of valuable energy gets reduced due to this phenomenon, which is very harmful to transmission systems [4]- [6]. Skin effect is an alternating current that tends to flow through the surface of transmission lines conductors that leads to ac losses [7], [8], and a phenomenon known as the proximity effect occurs when conductors carrying alternating current are close to one another.…”

Section: Introductionmentioning

confidence: 99%

Experimental Validation of a Mitigation Method of Ferranti Effect in Transmission Line

et al. 2023

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Electric power transmission networks should be operated in efficient, safe, and reliable conditions. To improve the stability and transfer capability of power transmission, it is necessary to mitigate the Ferranti effect. This paper investigates the impact of increasing the length of the transmission line on its receiving end voltage under no-load conditions. A variable shunt reactor compensation for transmission lines is used to control the voltage level at different lengths of the transmission line. The proposed method demonstrates that the value of the shunt reactor required to maintain the receiving end voltage can be estimated. Moreover, the system is modeled using the PowerWorld simulator, and the effectiveness of the proposed model has been verified by experimental results. The experimental results demonstrate the efficiency of the proposed methodology and match the simulation results, which are then validated by simulating the WSCC 9-bus and IEEE 30-bus test systems.

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“…Apart from this, significant load shedding can provoke over-voltages and may even imply voltage instability [3]. Furthermore, harmonics, resonances, switching operations and faults may lead to the amplification of voltage levels due to non-linear loads, power electronic devices, insulation failures or ground faults, among others [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Variable Reactance Criteria to Mitigate Voltage Deviations in Power Transformers in Light- and Over-Load Conditions

Haro-Larrode

2023

Machines

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In this paper, variable reactance (VR) criteria are proposed to mitigate voltage deviations in power transformers under light-load inductive and capacitive conditions, as well as for over-load conditions. Under capacitive load conditions, power transformers are affected by the Ferranti effect as much as AC lines are and can suffer damage if a large over-voltage is present at the secondary winding. A classical solution for this is the installation of expensive and bulky inductive reactors at different locations of the AC lines to absorb the reactive power. Instead, this paper addresses VR techniques focused on power transformer reactance modification to compensate for the over-voltage. With these techniques, the Ferranti effect on power lines can also be reduced. Another benefit is the cancellation of over-voltages whose cause is different from the Ferranti effect, namely under inductive load conditions. In addition, they can also enhance the parallel operation of power transformers by allowing more flexibility for overload sharing among transformers. The VR techniques are derived from the Kapp phasor-diagram theory and have been validated experimentally at a small scale in the laboratory. When implemented in a big network, they can also improve the load-flow voltage and AC line-loading profiles and even increase the power factor of certain generators.

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Corona Discharge Problem in Extra High Voltage Transmission Line

Cited by 21 publications

References 18 publications

Effect of cold plasma on lipid oxidation of fish and fish‐based products: a review

Effect of cold plasma on lipid oxidation of fish and fish‐based products: a review

Experimental Validation of a Mitigation Method of Ferranti Effect in Transmission Line

Variable Reactance Criteria to Mitigate Voltage Deviations in Power Transformers in Light- and Over-Load Conditions

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