冉海潮,郭英军,孙丽华,刘立辉.基于热像技术的电力变压器热故障的诊断方法[J].火灾科学,2007,16(1):52-54. |
基于热像技术的电力变压器热故障的诊断方法 |
Diagnosis method of transformer hot fault based on thermal imaging technology |
投稿时间:2006-08-11 修订日期:2006-11-19 |
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DOI:10.3969/j.issn.1004-5309.年.期.顺序 |
基金项目:河北省自然科学基金资助项目(F2005000422);河北省科技厅指导性计划项目(052135168) |
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中文关键词: 电气火灾 DGA诊断技术 热像技术 变压器 |
英文关键词:Electric fire DGA diagnosis technology Thermal imaging technology Transformer |
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中文摘要: |
提出了一种基于变压器表面的红外热像对变压器热故障进行在线诊断的方法。根据变压器的表面温度、结构参数、物性参数和环境温度通过建立其传热模型,对变压器内部热故障温度进行反演计算,并与DGA诊断结果进行比较,证明了该方法的可行性,实现了变压器热故障的非接触、在线诊断。 |
英文摘要: |
An on-line diagnosis method based on thermal imaging technology of transformer hot fault is given.A heat-transfer model was established by some parameters,such as surface temperature,structure parameters,physical characteristics and environmental temperature of transformer.And then the inner hot fault temperature of transformer is calculated through the model.By comparing with DGA diagnosis result,the availability of diagnosis method is proved.And then the on-line and non-contact diagnosis of transformer latent hot fault is realized. |
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