Analysis of high-voltage DC fuse’s ageing characteristics under the overload pulse current carrying mode and the caused short-circuit failure in series-resonant converter power source

Zhang, Yu; Su, Jiancang; Zheng, Liu; Li, Rui; Yu, Binxiong; Shang, W.

doi:10.1016/j.ijepes.2019.105604

Cited by 3 publications

(3 citation statements)

References 6 publications

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“…While calculating the thermal phenomena of electrical apparatus for the rated load, the share of heat transfer by radiation and natural convection is similar (for a temperature difference of several dozen Kelvins). The conditions of heat transfer to the environment in thermal calculations are often determined using the so-called heat transfer coefficient k, which defines the total amount of heat transferred to the environment from a given surface per unit time from the cooled body to the environment [13]. The total coefficient for the fuse link placed in the air is, therefore, the sum of the coefficients of heat transfer to the environment by convection and radiation, which is shown in the following relation [14]:…”

Section: Heat Transfer During Fuse Link Operationmentioning

confidence: 99%

Transient Thermal Analysis of NH000 gG 100A Fuse Link Employing Finite Element Method

et al. 2021

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In this paper, a detailed three-dimensional, transient, finite element method of fuse link NH000 gG 100 A is proposed. The thermal properties during the operation of the fuses under nominal (100 A) and custom conditions (110 and 120 A) are the main focus of the analyses that were conducted. The work concerns both the outside elements of the fuse link (ceramic body) and the elements inside (current circuit). Both the distribution of the electric current and its impact on the temperature of the construction parts of the fuses during their operating mode have been described. Temperature distribution, power losses and energy dissipation were measured using a numerical model. In order to verify and validate the model, two independent teams of scientists executed experimental research, during which the temperature was measured on different parts of the device involving the rated current. Finally, the two sets of results were put together and compared with those obtained from the simulation tests. A possible significant correlation between the results of the empirical tests and the simulation work was highlighted.

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Section: Heat Transfer During Fuse Link Operationmentioning

confidence: 99%

Transient Thermal Analysis of NH000 gG 100A Fuse Link Employing Finite Element Method

et al. 2021

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“…Less frequently, the tests concern single and two-point contact systems, reducing the transition resistance [25][26][27][28]. In order to be able to fully prepare modular electrical devices for digitization understood as linking functions with intelligence in action, it is necessary to build, among others, FEM models and appropriate described electronics [28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Transient Thermal Analysis of the Circuit Breaker Current Path with the Use of FEA Simulation

et al. 2021

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The finite element analysis (FEA) is an essential and powerful numerical method that can explicitly optimize the design process of electrical devices. In this paper, the employment of the finite element method (FEM) as ANSYS is proposed in order to aid electrical apparatus engineering and modeling of low voltage modular circuit breakers. The procured detailed model of a miniature circuit breaker (MCB) was undergoing transient thermal simulations of the current path. Acquired data were juxtapositioned with experimental data procured in the laboratory. The reflection of the simulation approach was clearly noted in the experimental results. Mutual areas of the modeled element expressed similar physical properties and robustness errors while tested in the specific conditions—faithfully reflecting those that were experimented with. Moreover, the physical phenomena essential for electrical engineering could be determined on the model stage. These types of 3D models can be used to analyze the thermal behavior of the current path during the current flowing condition.

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“…The need for more coordinated work between PV cell and fuse manufacturers is needed, reflecting the areas where this work is necessary [7]. In [8], the authors analyse fast DC fuses used in a series-resonant converter power source. Four stages of the fuse conductor are considered: the linear ageing stage, the nonlinear ageing stage, the fusing and arcing stage, and the arc-extinguishing stage.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Thermal Behaviour of DC Fuse

Pleşca

2020

Energies

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One of the very well-known protections for electrical apparatus against overloads or short circuits is the fuse. It can be used to protect both AC or DC electrical installations and it has also proven its effectiveness in the protection of different loads. This paper describes a three-dimensional model of a DC fuse with two different types of fuselink notches: circular and rhombic. The obtained 3D thermal model can be used to investigate the thermal behaviour of DC fuses in both steady-state and transient conditions at different values of overloads or short circuits. With the aim to validate the proposed 3D thermal model, a series of experimental tests have been achieved. The thermal simulated values are in good concordance with the experimental results (a relative error less than ±6% has been obtained between experimental and simulation data).

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Analysis of high-voltage DC fuse’s ageing characteristics under the overload pulse current carrying mode and the caused short-circuit failure in series-resonant converter power source

Cited by 3 publications

References 6 publications

Transient Thermal Analysis of NH000 gG 100A Fuse Link Employing Finite Element Method

Transient Thermal Analysis of NH000 gG 100A Fuse Link Employing Finite Element Method

Transient Thermal Analysis of the Circuit Breaker Current Path with the Use of FEA Simulation

Numerical Analysis of Thermal Behaviour of DC Fuse

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