Study on the Steady State Thermal Circuit Model of 10kV Three-Core Cable Based on the Shape Factor Method

Li, Wen Xiang; Su, Rui; Liu, Gang; Wang, Peng; Chen, Yixuan

doi:10.4028/www.scientific.net/amr.1008-1009.593

Cited by 2 publications

(3 citation statements)

References 1 publication

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“…[18][19][20], the specific material parameters of the 10 kV three-core cable joints are detailed in Table 1. During the modeling phase, several simplifications were incorporated to streamline the analysis [3,21]. Firstly, the geometric and thermodynamic parameters of each layer of the cable were treated as constant, disregarding any temperature-induced variations in these parameters.…”

Section: Establishment Of Simulation Modelmentioning

confidence: 99%

“…Three categories of boundaries are pertinent to heat transfer. The initial type involves a known boundary temperature function, expressible through the following equation [22]: During the modeling phase, several simplifications were incorporated to streamline the analysis [3,21]. Firstly, the geometric and thermodynamic parameters of each layer of the cable were treated as constant, disregarding any temperature-induced variations in these parameters.…”

Section: Temperature Field Control Equationmentioning

confidence: 99%

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Exploration of Temperature Inversion in Intermediate Joints of 10 kV Three-Core Cable

Li,

Chan,

et al. 2024

Processes

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In order to precisely ascertain the temperature at the hot spot within the intermediate joint of a three-core cable, this study focused on a 10 kV three-core cable joint as its primary subject. A three-dimensional finite element model of the cable joint was constructed, enabling the calculation of both the steady-state hot spot temperature field distribution and the transient temperature rise curve of the joint. Employing a one-dimensional transient thermal path model for the cable body, a radial inversion model for the cable core temperature was established. Through simulating the transient temperature field of the cable joint under varying currents, a fitting relationship was determined for the axial temperature points of the cable core. Subsequently, an inversion perception model was devised to calculate the hot spot temperature of the cable joint based on temperature measurements at specific points on the outer surface of the cable. Under both continuous and periodic loads, the inversion results revealed a consistent trend in the temperature at the joint crimping point with the finite element calculation outcomes, demonstrating a maximum error of within 3 degrees Celsius. This verification underscores the precision of the temperature combination inversion method when applied to three-core cable joints.

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Section: Establishment Of Simulation Modelmentioning

confidence: 99%

Section: Temperature Field Control Equationmentioning

confidence: 99%

Exploration of Temperature Inversion in Intermediate Joints of 10 kV Three-Core Cable

Li,

Chan,

et al. 2024

Processes

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show abstract

“…2) Flow field and heat transfer module: The principles of flow field [33] and heat transfer module [34]- [35] are relatively complex, and the setting is relatively complex. The references in this paper are introduced in clear detail, which will not be repeated in this paper.…”

Section: T Const mentioning

confidence: 99%

Study on electromagnetic-fluid-temperature multiphysics field coupling model for drum of mine cable winding truck

Zhou

Yan

et al. 2021

Trans. Electr. Mach. Syst.

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Aiming at solving problems of low efficiency, low cable capacity in current 300m open-pit mine cable winding truck, a 900 m cable winding plan was proposed. In this paper, the mechanism of the thermal effect of the cable was described, and a two-dimensional axisymmetric electromagnetic-fluid-temperature multiphysics coupling model of the cable reel was established regarding the 900m cable reel as independent system. Considering the structure of the drum, the number of cable winding layers, the factors of heat conduction, heat radiation and convective heat transfer in the actual working process, the steady state analysis of the multi-physical field coupling was carried out. The sum of the losses of each part of the cable was obtained through the calculation of electromagnetic field, which was used as a heat source to calculate and analyze the temperature distribution of different layers of cable winding, as well as the temperature distribution and heat dissipation characteristics of different structures of the drum. The results show that three layers of cable winding is the best design. The lowest temperature of closed cylindrical drum is 70℃ after heat dissipation, which has obvious advantages compared with the lowest temperature of 85℃ after heat dissipation of squirrel-cage cylindrical drum. The results provide a reliable theoretical basis for the research and development of a new type of mine cable winding truck with 900 m cable capacity. Index Terms-Heat dissipation characteristics, mine cable winding truck, multiphysics coupling, temperature distribution I. INTRODUCTION HE main power supply equipment of the open-pit coal mining tool shovel is the plough truck and the cable Manuscript

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Study on the Steady State Thermal Circuit Model of 10kV Three-Core Cable Based on the Shape Factor Method

Cited by 2 publications

References 1 publication

Exploration of Temperature Inversion in Intermediate Joints of 10 kV Three-Core Cable

Exploration of Temperature Inversion in Intermediate Joints of 10 kV Three-Core Cable

Study on electromagnetic-fluid-temperature multiphysics field coupling model for drum of mine cable winding truck

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