| 引用本文: | 李维波,毛承雄,陆继明,李启炎.电力设备直流电阻测量用恒流源研究[J].电力自动化设备,2003,(5):63-66 |
| .Study of constant-current source for measuring DCR of large electric power equipment[J].Electric Power Automation Equipment,2003,(5):63-66 |
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| 摘要: |
| 介绍了一种用于测量大型电力设备(如电力变压器)支流电阻的高稳定度10A恒流源的工作原理、设计方法和重要性能指标，并提出了利用直流比较仪对大电流恒流源(测量微小电阻时)进行校验的新颖方法。 |
| 关键词: 直流电阻 测量 恒流源 电力设备 电力系统 |
| DOI： |
| 分类号:TM934.12 TM7 |
| 基金项目: |
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| Study of constant-current source for measuring DCR of large electric power equipment |
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LI Wei-bo MAO Cheng-xiong LU Ji-ming LI Qi-yan
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| Abstract: |
| A10-ampere constant-current source with high stability is introduced,which is used to measure the DCR(Direct Current Resistance)of large electric power equipment (e.g.transformer).Its basic principles,design methods and important performance data are analyzed in detail.A method based on DCC(Direct Current Comparator)is presented for calibrating the large constant current source when used to measure the small resistance. |
| Key words: electric power equipment,constant-current source,DCR,calibration |
