Simulation Study on Ventilation &amp; Cooling for Main Transformer Room of an Indoor Substation

Tingfang, Yu; Huijuan, Yang; Xu, Rui; Chunhua, Peng

doi:10.4304/jmm.9.8.1040-1047

Cited by 4 publications

(4 citation statements)

References 8 publications

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“…In certain cases, the solution involves the construction of underground substations to increase the offer of power, which, despite being the most feasible type in specific situations, still present several drawbacks, such as limited room for the dissipation of the heat generated by the transformer [3]- [5].…”

Section: Introductionmentioning

confidence: 99%

Design of an Underground, Hermetic, Pressurized, Isolated and Automated Medium Voltage Substation

Faria

Santos

Junior

et al. 2020

IEEE Open J. Ind. Applicat.

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This paper presents a new concept in underground medium voltage substations for an optimized operation performance and overall cost reduction. Due to its high-level embedded automation and communication systems, increased standards of reliability, availability and security are reached. Moreover, less expensive IP00 equipment can be used instead of higher IP-rated equipment, since the substation enclosure is hermetic and pressurized. Cost and time of construction works are reduced, as is the inconvenience to the population, especially when it comes to intense traffic areas. In addition, overall personnel labor is downsized, which reduces costs. In this context, the features and design guidelines of the proposed substation concept are presented, along with the methodology developed to address the thermal, structural and electric design issues.

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Section: Introductionmentioning

confidence: 99%

Design of an Underground, Hermetic, Pressurized, Isolated and Automated Medium Voltage Substation

Faria

Santos

Junior

et al. 2020

IEEE Open J. Ind. Applicat.

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“…In the open literature, limited number of work were found on the study of optimum ventilation of transformer building. A few works were found on the investigation of the efficiency of indoor substation by simulation [1][2]. It was concluded that height elevation between air outlet and inlet will improve the indoor temperature and velocity fields [2].…”

Section: Introductionmentioning

confidence: 99%

“…A few works were found on the investigation of the efficiency of indoor substation by simulation [1][2]. It was concluded that height elevation between air outlet and inlet will improve the indoor temperature and velocity fields [2]. For a typical transformer heat map, the hottest spot was usually located at the top surface, followed by the sides of transformer [3].…”

Section: Introductionmentioning

confidence: 99%

Flow and Heat Dissipation Analysis in Transformer Substation with Minimal Ventilation using CFD

Bahri

Hasini²

2018

IJET

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This paper aims to investigate the flow and heat dissipation of a transformer located in substation building with minimal ventilation system. The study is carried out using CFD, which model the flow and conjugate heat transfer in step-up transformer and its surrounding air. Transformer model is generated by considering the extended fins at both side which enhance heat dissipation. Three different substation ventilation designs are proposed in this work. The effect of air outlet positions with fixed inlets are investigated. The primary objective is to investigate transformer surface and surrounding temperatures for different ventilation systems. The result indicated that minimum natural ventilation of a transformer substation is achievable to avoid transformer overheating. This must be achieved by carefully selecting suitable air inlets and outlets positions in a transformer substation.

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“…It is reported in [6] how finite element approach is applied on oil filled disc type windings for the purpose of locating hot spot. Cases regarding optimal design of indoor substation and ventilation are treated in [7,8,9,10,11]. There is even an example where FEM CFD tools were used to gain further insight in conjugate heat transfer for oil inside and air outside the radiators for both ONAN and ONAF transformers [12,13].…”

Section: Introductionmentioning

confidence: 99%

Fem CFD analysis of air flow in kiosk substation with the oil immersed distribution transformer

Stanišić

Jevtić

Das³

et al. 2018

FACTA U EE

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In practice of loading of oil-immersed distribution transformers, there is a need to have lumped thermal model, requiring no big computational resources and computational time. One such model is presented in international transformer loading guide (IEC 60076-7), where heat transfer inside the transformer is modeled. In case of indoor transformer operation, this model does not consider transient thermal phenomena in the room. We developed a lumped model that includes heat transfer in the transformer room. In scope of the research, we also built FEM CFD (finite element method, computational fluid dynamics) model of air flow and heat transfer. The purpose of FEM CFD was to make a better insight into air flow, i.e. to study the simplifications introduced in lumped model and suggest potential improvements. This paper presents results achieved with FEM CFD. The considered case was the transformer with natural oil and natural air flow (ONAN).

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Simulation Study on Ventilation & Cooling for Main Transformer Room of an Indoor Substation

Cited by 4 publications

References 8 publications

Design of an Underground, Hermetic, Pressurized, Isolated and Automated Medium Voltage Substation

Design of an Underground, Hermetic, Pressurized, Isolated and Automated Medium Voltage Substation

Flow and Heat Dissipation Analysis in Transformer Substation with Minimal Ventilation using CFD

Fem CFD analysis of air flow in kiosk substation with the oil immersed distribution transformer

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