电力变压器直流偏磁试验研究
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黄佐流
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Research on DC Bias Test of Power Transformer
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Zuoliu Huang
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表4 ODFS–334000/500直流偏磁试验结果
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Tab.4 Testing result of DC bias with ODFS–334000/500
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| 项 目 | 100%UN | 100%UN+DC1A | 100%UN+DC2A | 100%UN+DC3A | 100%UN+DC4A | | 声压级/dB(A) | 69.0 | 73.0 | 78.0 | 80.0 | 80.0 | | 励磁电流/A | 6.50 | 10.22 | 30.35 | 37.50 | 46.74 | | 空载损耗/kW | 127.06 | 131.03 | 136.70 | 137.41 | 137.24 | | 错开一档 | | | | | | | 声压级/dB(A) | 72 | 74 | | | | | 励磁电流/A | 12.03 | 19.63 | | | | | 损耗/kW | 131.59 | 135.69 | | | | | 错开二档 | | | | | | | 声压级/dB(A) | 72 | 74 | 77 | | | | 励磁电流/A | 35.86 | 41.36 | 52.02 | | | | 损耗/kW | 142.9 | 146.16 | 149.77 | | |
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