Minimizing the Magnetic Field Surrounding Isolated-Phase Bus by Electrically Continuous Enclosures

Skeats, W. F.; Swerdlow, N.

doi:10.1109/aieepas.1962.4501385

Cited by 16 publications

(9 citation statements)

References 4 publications

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“…These two features are recalled as force characteristics in this article and are shown in Figure 6. The greatest forces are usually due to three-phase short circuits and always are experienced by the middle phase (phase B) (Skeats & Swerdlow, 1963). The result of our method presented in Figure 6 is compared with the result obtained from the well-known image current method (Parniani & Naderian Jahromi, 1998.…”

Section: Force Analysismentioning

confidence: 96%

“…Since the enclosures are connected together at both ends, rV becomes zero in the computations. In most cases, the worst condition occurs when a three-phase short circuit happens (Skeats & Swerdlow, 1963). The transient three-phase short circuit current in each phase conductor is generally expressed as (Tuohy, 1971)…”

Section: Finite-element Analysismentioning

confidence: 99%

“…Different methods can be employed to calculate the forces, e.g., the empirical method, the image current method, the complex vector potential method, and numerical methods. The empirical method has been used to evaluate the forces by certain companies and researchers (Willson & Mankoff, 1954;Skeats & Swerdlow, 1963). This method uses a scaled-down experimental system and is very costly and difficult.…”

Section: Introductionmentioning

confidence: 99%

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Transient Finite-Element Analysis of Short-Circuit Electromagnetic Forces in Isolated Phase Buses

Isfahani

Vaez‐Zadeh

2008

Electromagnetics

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Short-circuit electromagnetic forces have a vital role in the mechanical design of isolated phase buses. Electromagnetic forces in isolated phase buses under short-circuit conditions are analyzed in this article. These forces are calculated using the time-stepping finite-element method. The effects of system dimensions and material properties on the maximum value of forces and the time of its occurrence are investigated through extensive simulation. The concluding remarks are useful for the design and protection of the buses.

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Section: Force Analysismentioning

confidence: 96%

Section: Finite-element Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Transient Finite-Element Analysis of Short-Circuit Electromagnetic Forces in Isolated Phase Buses

Isfahani

Vaez‐Zadeh

2008

Electromagnetics

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“…the empirical method, the image current method, the complex vector potential method, and numerical methods. The empirical method has been used to evaluate the forces by certain companies and researchers [8,9]. This method uses a scaled experimental system and is very costly and difficult.…”

Section: Introductionmentioning

confidence: 99%

Accurate Determination of Electromagnetic Forces in Isolated Phase Buses under Short Circuit Conditions

Isfahani

Vaez‐Zadeh

2007

2007 IEEE Power Engineering Society General Meeting

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Short circuit electromagnetic forces have vital role in the design of isolated phase buses. Therefore, accurate determination of these forces is needed. In this paper these forces as well as eddy currents and magnetic fields are calculated using finite element method. A program is then developed to find the worst conditions at which maximum short circuit electromagnetic forces occur. The results are discussed and conclusions are drawn for design purposes.Index Terms--Isolated phase bus, Electromagnetic force, Magnetic field, Finite element method.

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“…The continuous-enclosure type IPB is generally used in power plants to connect the generator to the main transformer [8]- [11]. In general, for this type of IPB, as shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic Shielding Effectiveness Analysis of Isolated Phase Bus Applied for ITER Poloidal Field Converter

Xia

Song

Yang

et al. 2015

IEEE Trans. Plasma Sci.

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Isolated phase bus (IPB) is generally used in power plants to connect the generator to the main transformers due to its shielding ability. And this paper presents the electromagnetic shielding effectiveness analysis of the IPB applied in International Thermonuclear Experimental Reactor poloidal field converters. The circulating currents induced in the enclosures and the magnetic field around the IPB are analyzed and studied. An equivalent electrical circuit is built to analyze the circulating current with a nonsinusoidal input by solving the corresponding numerical differential equations. And an experimental test is also performed on a full scale prototype to verify the model and results of the analysis. In addition, magnetic field distribution around the IPB is analyzed based on the Fourier decomposition and finite-element method. The analysis result indicates that the IPB is of good electromagnetic shielding ability. And the method of the analysis presented in this paper is proved to have great value in the analysis and design of IPB used in converter systems.Index Terms-Circulating current, electromagnetic shielding effectiveness, International Thermonuclear Experimental Reactor (ITER) poloidal field (PF) converter, isolated phase bus (IPB), magnetic field distribution. Manuscript

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Minimizing the Magnetic Field Surrounding Isolated-Phase Bus by Electrically Continuous Enclosures

Cited by 16 publications

References 4 publications

Transient Finite-Element Analysis of Short-Circuit Electromagnetic Forces in Isolated Phase Buses

Transient Finite-Element Analysis of Short-Circuit Electromagnetic Forces in Isolated Phase Buses

Accurate Determination of Electromagnetic Forces in Isolated Phase Buses under Short Circuit Conditions

Electromagnetic Shielding Effectiveness Analysis of Isolated Phase Bus Applied for ITER Poloidal Field Converter

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