New approach to calculation of electric field in three-core power cables

Li, Y.M.; Qui, Y.; Li, L.L.; Jiang, Guoyi; Kuffel, E.

doi:10.1109/61.53095

Cited by 5 publications

(3 citation statements)

References 7 publications

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“…For any assignment factor fs, the ratio of the distance between two successive charges to the distance between a charge and the corresponding boundary point, Rc is given as follows: To keep the grounded sheath at zero potential, every conductor charge must have an image charge. The potential and field coefficient of the infinite line charge are given [12] [16].…”

Section: Methods Of Analysis and Simulation Techniquementioning

confidence: 99%

“…Their computation reached a satisfactory accuracy even when the ratio T/d was as low as 0.05 by using a total number of 96 line charges [9]. between a charge and the corresponding boundary point [9,12]. The electric field is determined as a function of T/d ratio, the time, and the location in the three core cable .…”

Section: Introductionmentioning

confidence: 99%

“…For comparison purposes, the same symbols and assumptions used by some previous investigators [6][7][8][9][10][12][13] , are adopted here, i. e. ; (i) Each conductor is smooth and circular, due to the presence of the conductive shield over the conductor strands;…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

More Accurate Calculation of Electric Field in Three-Core Belted Power Cables

El-Mohandes

Ōkubo

1994

IEEJ Trans. PE

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SummaryThe electric stress inside three-core belted cables is calculated using the charge simulation method combined with the method of imaging. Each conductor is simulated by Nc infinite line charges. An image charge for each fictitious charge is considered to keep the sheath potential at zero. The proposed method has the advantages that the charge values and hence the potential and field stress at any point are expressed as a function of the time wt which result in considerable saving in the computation time. Besides the computation time saving, the proper choice of the values of Nc and the assignment factor fs results in a high accuracy of the potential and field stress. The maximum potential error is shown not to be more than 0.05% and the field deviation angle is not more than 0.11. even when inter-conductor spacing is very small.

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Section: Methods Of Analysis and Simulation Techniquementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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More Accurate Calculation of Electric Field in Three-Core Belted Power Cables

El-Mohandes

Ōkubo

1994

IEEJ Trans. PE

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Cable dimension determination using Finite Element Method Magnetic (FEMM) for three-core belted and gas insulated cables

Tefera,

Punekar,

Ibrahim

et al. 2024

e-Prime - Advances in Electrical Engineering, Electronics and E

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An efficient method for calculation of electric field in three-core power cables

Leon

Murari

1996

IEEE Trans. Power Delivery

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In this paper we applied the Superposition Principle with a new basic conductor voltage condition for the computed electric field in three-core cables and the results obtained have higher accuracy and lower computational time than the previous works. The maximum potential errors is not more than 0.050% and the maximum field deviat8ion angle is not more than 0.011". The electric field problem under arbitrary conductor voltage condition is reduced to a field computation for a new basic conductor voltage condition (O,l,-1) which reduces the computing time because it doesn't require the repetitive solution of the algorithm for different u t values. With this new configuration, it is possible to take advantages of a symmetrical conductor arrangement, reducing the number of charges necessary for the field calculation and the Superposition Principle is applied only two times.

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New approach to calculation of electric field in three-core power cables

Cited by 5 publications

References 7 publications

More Accurate Calculation of Electric Field in Three-Core Belted Power Cables

More Accurate Calculation of Electric Field in Three-Core Belted Power Cables

Cable dimension determination using Finite Element Method Magnetic (FEMM) for three-core belted and gas insulated cables

An efficient method for calculation of electric field in three-core power cables

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