Numerical Study of Electromagnetic Loss and Heat Transfer in an Oil-Immersed Transformer

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr class="thead"><td class="align_left">Load rate</td><td class="align_center">Metal components (W/m<sup>2</sup>)</td><td class="align_center">Tank wall (W/m<sup>2</sup>)</td><td class="align_center">HV coil (W/m<sup>3</sup>)</td><td class="align_center">LV coil (W/m<sup>3</sup>)</td><td class="align_center">Core (W/m<sup>3</sup>)</td></tr><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr><td class="align_left">0.9</td><td class="align_center">16.07</td><td class="align_center">0.6</td><td class="align_center">17 966.04</td><td class="align_center">24 974.5</td><td class="align_center">10 836.92</td></tr><tr><td class="align_left">1.0</td><td class="align_center">16.62</td><td class="align_center">0.61</td><td class="align_center">22 071.73</td><td class="align_center">30 832.71</td><td class="align_center">10 831.05</td></tr><tr><td class="align_left">1.1</td><td class="align_center">17.17</td><td class="align_center">0.62</td><td class="align_center">26 607.55</td><td class="align_center">37 307.6</td><td class="align_center">10 824.88</td></tr><tr class="table-tr"><td colspan="6"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Electromagnetic loss densities of different components in transformer under different load rates.</div>

Mathematical Problems in Engineering

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Table 4

Table 4: Numerical Study of Electromagnetic Loss and Heat Transfer in an Oil-Immersed Transformer 