A Temperature Prediction Model for Oil-immersed Transformer Based on Thermal-circuit Theory

doi:10.13296/j.1001-1609.hva.2012.11.024

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A Temperature Prediction Model for Oil-immersed Transformer Based on Thermal-circuit Theory

更新时间：2025-05-17

- A Temperature Prediction Model for Oil-immersed Transformer Based on Thermal-circuit Theory
- High VoltageApparatus Vol. 48, Issue 11, Pages: 1-6(2012)
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- DOI：10.13296/j.1001-1609.hva.2012.11.024
  CLC： TM411
- Published：2012
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[J]. High voltageapparatus, 2012, 48(11): 1-6.
DOI：

[J]. High voltageapparatus, 2012, 48(11): 1-6. DOI： 10.13296/j.1001-1609.hva.2012.11.024.

摘要

This paper proposed an improved temperature prediction model for oil-immersed transformer.The influences of the environmental temperature and heat-sinking capability changing with temperature were considered.When calculating the heat dissipation from the transformer tank to surroundings

the average oil temperature was selected as the node value in the thermal circuit.The new thermal models will be validated with the delivery experimental data of three transformers: a 220 kV-300 MV.A unit

a 110 kV40 MV.A unit and a 220 kV-75 MV.A unit.Meanwhile

the results from the proposed model were also compared with two methods recommended in the IEC loading guide.

Abstract

a 110 kV40 MV.A unit and a 220 kV-75 MV.A unit.Meanwhile

the results from the proposed model were also compared with two methods recommended in the IEC loading guide.

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