Dry-Type Transformers: Specification, Installation, and Operational Impacts in a Marine Environment

Wimmer, J.; Tanner, M.R.; Nunn, Tommy; Kern, Joel

doi:10.1109/mias.2012.2215995

Cited by 15 publications

(2 citation statements)

References 3 publications

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“…The performance of traditional organic insulation materials limits the further improvement of the heat resistance level of dry-type transformers [14] [15]. Reference [16] reviewed the application environment and material selection of dry-type transformers in marine environment. The experimental results are of scientific significance for the analysis of oil-paper insulated power transformers.…”

Section: Introductionmentioning

confidence: 99%

Thermal Analysis and Structure Optimization of a Dry-type Transformer with Ceramic Insulated Windings for Offshore Platform

Wang

et al. 2023

Preprint

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Dry-type transformer is the key hub equipment connecting power generation platform and power consumption platform in marine power system. Partial insulation aging caused by transformer thermal effect is one of the important factors that adversely affect the operation stability. The new ceramic insulation winding prepared by micro-arc oxidation technology has the characteristics of high thermal conductivity and high temperature resistance, and is an ideal product to replace traditional organic insulation materials. Therefore, in this paper, the thermal characteristics and overload capacity of a ceramic insulated aluminum winding dry-type transformer are studied by combining heat flow coupling simulation and experiment. By comparing the temperature field and velocity field characteristics of traditional organic insulated dry-type transformer and ceramic insulated dry-type transformer, the influence of different winding materials on transformer heat dissipation under the same load condition is studied. The hottest spot temperature of ceramic insulated winding dry-type transformer is about 86% of that of traditional organic insulated transformer. The ceramic insulated dry-type transformer has a good overload capacity. Under the premise of meeting the H-class insulation, it can carry 1.4 times the rated load. Finally, the simulation results are compared with the experimental data of the ceramic insulated dry-type transformer. The accuracy of the results was verified.

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Section: Introductionmentioning

confidence: 99%

Thermal Analysis and Structure Optimization of a Dry-type Transformer with Ceramic Insulated Windings for Offshore Platform

Wang

et al. 2023

Preprint

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“…The dry-type transformers are always recommended for marine applications and in those industrial installations where the complete elimination of liquids is a requirement [4]. Fire safety is the primary concern in hazardous areas, and the dry-type transformer fulfills this requirement [5].…”

mentioning

confidence: 99%

Thermal analysis of a dry-type distribution power transformer using FEA

Arjona

Hernández

Escarela‐Perez

et al. 2014

2014 International Conference on Electrical Machines (ICEM)

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This paper presents an analysis of the thermal behavior (convection, conduction and radiation) in steady state of a dry-type distribution power transformer. Dry-type transformers are mainly used in applications where the risk of fire and environmental policy does not allow the use of oilfilled transformers. The model takes into account the fluid (air) and solves the heat transfer equation for non-isothermal stationary laminar flow; together with the radiation between the components in the transformer and with the external ambient temperature. The finite element method is used to solve an axisymmetric model of the transformer. It is also modeled the effect of forced air in the thermal model. It is concluded that the finite element model can predict the thermal process in the stationary state, and that this tool can be used by manufacturers to design better electromagnetic devices.Index Terms-Transformer, finite element method, thermal model, hot spot.

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An MD-based physical characteristics analysis on the PI/EP duo-layer composites, impacting of diamino groups

Huang

Han

Wang

et al. 2023

Materials Today Communications

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Dry-Type Transformers: Specification, Installation, and Operational Impacts in a Marine Environment

Cited by 15 publications

References 3 publications

Thermal Analysis and Structure Optimization of a Dry-type Transformer with Ceramic Insulated Windings for Offshore Platform

Thermal Analysis and Structure Optimization of a Dry-type Transformer with Ceramic Insulated Windings for Offshore Platform

Thermal analysis of a dry-type distribution power transformer using FEA

An MD-based physical characteristics analysis on the PI/EP duo-layer composites, impacting of diamino groups

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