Overcurrent Protection Response of a Hot Rolling Mill Filtering System: Analysis of the Process Conditions

Orcajo, Gonzalo A.; Ardura, G Pablo; Rodriguez, D Josue; Cano, José M.; Norniella, Joaquín G.; Llera, T Rocio; Cifrian, R Diego

doi:10.1109/tia.2017.2671459

Cited by 11 publications

(13 citation statements)

References 11 publications

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“…The steps followed in this work to analyze dry-type air-core reactors are shown in Figure 3 and can be summarized as: (a) Building of a simplified electric model of the plant, (b) characterization of the coil and validation using FEM-based simulations and (c) use of multiphysics simulations to obtain the thermal behavior of the coil under real operating conditions. Although the first step has already been described in detail in previous works [4,10], a general review is presented in this paper for the benefit of the reader.…”

Section: Proposed Study and Calculationsmentioning

confidence: 99%

“…Energies 2020, 13, x FOR PEER REVIEW 4 of 24 the thermal behavior of the coil under real operating conditions. Although the first step has already been described in detail in previous works [4,10], a general review is presented in this paper for the benefit of the reader. The creation of the models enables the determination of the temperature reached by the coil.…”

Section: Proposed Study and Calculationsmentioning

confidence: 99%

“…An analysis of the behavior of the complete system was conducted in [4,10]. The impedance of the different filter branches and the short-circuit impedance at the PCC (Zs = 0.199 + 1.615j Ω) are considered in this study.…”

Section: Distribution Network Topology and Filtering Systemmentioning

confidence: 99%

“…The impedance of the different filter branches and the short-circuit impedance at the PCC (Zs = 0.199 + 1.615j Ω) are considered in this study. Several critical cases are detected and analyzed [10,11].…”

Section: Distribution Network Topology and Filtering Systemmentioning

confidence: 99%

“…The harmonics absorbed by the filter are largely responsible for the temperature overloads experienced by the filter coils. Harmonic injection is a function of the operating conditions of the plant and the characteristics of the drives [4,10,11]. Since the main objective of the paper is based on the analysis of the role of the filtering banks during working conditions, evaluating the current and voltage harmonics associated with the normal operation of the drives of the steel plant is crucial.…”

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confidence: 99%

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Thermal Analysis of Dry-Type Air-Core Coils for the Optimization of Passive Filtering Systems

et al. 2020

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The analysis of harmonic currents in distribution networks of industrial facilities and the associated filtering stages is essential to optimize the production of these installations. Dry-type air-core reactors are one of the main elements of harmonic filter banks. A thermal analysis of these reactors in conventional steel plants and an evaluation of the criteria used to adjust the corresponding thermal protections are proposed in this paper. Accordingly, harmonic currents through the different filter branches are assessed. The proposed methodology builds a thermal magnetic model using the finite element method (FEM) whereby electromagnetic fields, currents and losses are emulated, to allow for recreating the actual coil temperature. The study aims at increasing the reliability of filtering systems by lowering the number of unscheduled shutdowns due to conservative adjustments of thermal protections.

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Section: Proposed Study and Calculationsmentioning

confidence: 99%

Section: Proposed Study and Calculationsmentioning

confidence: 99%

Section: Distribution Network Topology and Filtering Systemmentioning

confidence: 99%

Section: Distribution Network Topology and Filtering Systemmentioning

confidence: 99%

mentioning

confidence: 99%

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Thermal Analysis of Dry-Type Air-Core Coils for the Optimization of Passive Filtering Systems

et al. 2020

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An experimental study on the combustion process and thermodynamic characteristic parameters of copper wire overcurrent fault

Wang

Shi

et al. 2023

Fire and Materials

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The overcurrent fault of copper wire is an important cause of electrical fire, and the combustion process of which is relatively complicated. In this study, the rated current of 32A of the wire was taken, and the electrical fault simulation device was used. After the overcurrent Io was set to 128A, 160A, 192A, and 224A, respectively, to analyze the combustion evolution process of PVC‐insulated copper wire, the evolution of pyrolysis gas from the insulating layer, and the change of functional groups. The results show that when the overcurrent fault of PVC‐insulated copper wire happened, the core wire was turning red, the wire was deforming, the smoke was releasing, the insulating layer was dripping, the wire was fusing, and the continuous burning occurred. When the current Io < 160A, there was only one fusing point on the wire. In addition, when an overcurrent fault occurred in the PVC‐insulated copper wire, the temperature rise rate increased exponentially, which can be divided into three stages of the initial heat accumulation stage, the wire fusing stage, and the continuous burning stage. Furthermore, CO, HCl, CH4, olefins, and aliphatic and aromatic compounds were precipitated during the combustion process of the PVC insulating layer. The quality of the insulating layer decreased with the increase in temperature, and the weight loss rate was higher at 300°C. The conclusions of this study have provided experimental basis and technical support for the physical and evidence identification of fire accidents.

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Research on overcurrent heating characteristics of copper wires at different inclination angles

Wang

et al. 2022

J Therm Anal Calorim

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Overcurrent Protection Response of a Hot Rolling Mill Filtering System: Analysis of the Process Conditions

Cited by 11 publications

References 11 publications

Thermal Analysis of Dry-Type Air-Core Coils for the Optimization of Passive Filtering Systems

Thermal Analysis of Dry-Type Air-Core Coils for the Optimization of Passive Filtering Systems

An experimental study on the combustion process and thermodynamic characteristic parameters of copper wire overcurrent fault

Research on overcurrent heating characteristics of copper wires at different inclination angles

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