Evaluating the Impacts of Grounding Systems on Ground Currents and Transient Overvoltage

Saleh, S. A.; Jewett, D.; Al‐Durra, Ahmed; Kanukollu, Saikrishna; Cárdenas-Barrera, Julián; Valdes, Marcelo E.; Panetta, Sergio

doi:10.1109/tia.2022.3190261

Cited by 13 publications

(4 citation statements)

References 23 publications

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“…Based on the above equation, a simulation model is established in PSCAD to calculate and analyze the grounding current of the converter transformer core. As shown in (11), the grounding current is affected by the relative dielectric constant of the capacitor, the input voltage of the transformer, and the geometry of the winding.…”

Section: Calculation Of Grounding Current Of Converter Transformer Corementioning

confidence: 99%

“…9 So, there is a circulation current in the core grounding wire during the operation of the transformer, and this situation often occurs in the substations. 10 Saleh et al 11 present a performance comparison of the solid, low impedance, high impedance, frequencyselective, and isolated grounding systems. Aiming at transformer core earthing current monitoring, a noncontact current monitoring method based on a single monaxial tunneling magnetoresistance sensor is proposed.…”

Section: Introductionmentioning

confidence: 99%

“…Saleh et al 11 present a performance comparison of the solid, low impedance, high impedance, frequency-selective, and isolated grounding systems. Aiming at transformer core earthing current monitoring, a non-contact current monitoring method based on a single monaxial tunneling magnetoresistance sensor is proposed.…”

Section: Introductionmentioning

confidence: 99%

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Mathematical modeling and experimental research on grounding current calculation of converter transformer core

Zhou,

Tian,

et al. 2023

Measurement and Control

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When the converter transformer core is grounded at multi-points, a fault loop will be formed and a circulation will be generated, leading to local overheating of the magnetic core and decomposition of insulating oil. Therefore, the converter transformer core will be single point grounded. As a rare internal lead of converter transformer, the ground current on the core ground lead can often reflect the running state of converter transformer. In this paper, theoretical analysis, modeling simulation and experimental research are carried out on the ground current of converter transformer at one point. Firstly, according to the structure characteristics of converter transformer, the analytical modeling of ground current is carried out. Secondly, based on the structure characteristics of oil paper insulation, the equivalent capacitance of converter transformer is calculated. Then, the analytical and finite element simulation model of converter transformer is established, and the ground current of converter transformer is calculated. Finally, the correctness of the proposed scheme is verified by measuring the grounding current of converter transformer core.

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Section: Calculation Of Grounding Current Of Converter Transformer Corementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Mathematical modeling and experimental research on grounding current calculation of converter transformer core

Zhou,

Tian,

et al. 2023

Measurement and Control

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show abstract

“…• "Evaluating the Impacts of Grounding Systems on Ground Currents and Transient Overvoltage," by Saleh, Jewett, Al-Durra, Kanukollu, Cardenas, Valdes, and Panetta, describes performance testing on the abilities of various grounding system designs to influence ground currents and potentials [9].…”

Section: Electrical Safety (Continued From Page 5)mentioning

confidence: 99%

Contributions to the Electrical Safety Knowledge Base in 2022 [Electrical Safety]

Doan¹

2023

IEEE Ind. Appl. Mag.

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Effects of Grounding Impedance on the Second Harmonic Component Produced by GIC Flows

Saleh,

Zundel,

Meng

et al. 2024

2024 IEEE/IAS 60th Industrial and Commercial Power Systems Technical Conference (I&CPS)

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Evaluating the Impacts of Grounding Systems on Ground Currents and Transient Overvoltage

Cited by 13 publications

References 23 publications

Mathematical modeling and experimental research on grounding current calculation of converter transformer core

Mathematical modeling and experimental research on grounding current calculation of converter transformer core

Contributions to the Electrical Safety Knowledge Base in 2022 [Electrical Safety]

Effects of Grounding Impedance on the Second Harmonic Component Produced by GIC Flows

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